| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
|---|---|---|---|---|
| macro spicule (macroSpicule) | ||||
|
macro spicule |
spicule |
Sun
, chromosphere |
||
| macroturbulence (macroturbulence) | ||||
|
macroturbulence |
turbulence Earth atmosphere
, turbulence star atmosphere |
atmosphere
, stellar structure |
||
| Magellanic cloud (MagellanicCloud) | ||||
|
Magellanic cloud |
Clouds of Magellan |
galaxy
, irregular galaxy , Local Group , nearby galaxy |
Large Magellanic Cloud
, Small Magellanic Cloud |
Magellanic stream |
| Magellanic stream (MagellanicStream) | ||||
|
Magellanic stream |
Magellanic cloud | |||
| magnesium (magnesium) | ||||
|
magnesium (atomic number 12) |
Mg | fundamental chemical element | ||
| FVH: new (2007-OCT-25) | ||||
| magnetar (magnetar) | ||||
|
magnetar |
magnetic star
, neutron star |
soft gamma-ray repeater | ||
| ES: new (2007-OCT-8) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| magnetic anomaly (magneticAnomaly) | ||||
|
magnetic anomaly |
anomaly |
gravity anomaly
, magnetic property |
||
| magnetic disturbances (magneticDisturbances) | ||||
|
magnetic disturbances |
aurora
, magnetic property |
|||
| magnetic field (magneticField) | ||||
|
magnetic field |
emerging flux
, geomagnetic field , interplanetary magnetic field , interstellar magnetic field |
Paschen-Back effect
, dynamo theory , force , magnetic monopole , magnetic pole , magnetic property , magnetic variable star , magnetohydrodynamics , magnetosphere , paleomagnetism , sunspot |
||
| magnetic monopole (magneticMonopole) | ||||
|
magnetic monopole |
magnetic field
, magnetic pole |
|||
| magnetic pole (magneticPole) | ||||
|
magnetic pole |
aurora
, magnetic field , magnetic monopole , magnetic storm , magnetic variable star |
|||
| magnetic property (magneticProperty) | ||||
|
magnetic property |
property |
magnetic anomaly
, magnetic disturbances , magnetic field , magnetic star |
||
| magnetic star (magneticStar) | ||||
|
magnetic star |
cobalt star | peculiar star |
Am star
, Bp star , magnetar , magnetic variable star , manganese star , mercury manganese star |
Ap star
, cobalt , magnetic property , oblique rotator , spectrum variable star , strontium star |
| magnetic storm (magneticStorm) | ||||
|
magnetic storm |
magnetospheric substorm |
aurora
, magnetic pole , magnetosphere , solar activity , sunspot |
||
| magnetic variable star (magneticVariableStar) | ||||
|
magnetic variable star |
intrinsic variable star
, magnetic star |
Am star
, SX Arietis star , alpha2 Canum Venaticorum star |
Ap star
, magnetic field , magnetic pole |
|
| magnetograph (magnetograph) | ||||
|
magnetograph |
instrument | |||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| magnetoheliograph (magnetoheliograph) | ||||
|
magnetoheliograph |
instrument | |||
| magnetohydrodynamics (magnetohydrodynamics) | ||||
|
magnetohydrodynamics |
MHD
, hydromagnetics |
Alfven wave |
cosmic electrodynamics
, hydrodynamics , magnetic field , plasma physics , plasma wave , synchrotron radiation , van Allen radiation belt |
|
| FVH: moved mhd to ALT, ALFVEN_WAVES to NT (2007-SEP-24) | ||||
| magneto-optical effect (magnetoOpticalEffect) | ||||
|
magneto-optical effect |
magneto optical effect |
Faraday effect
, Zeeman splitting , polarization charge separation |
||
| magnetosphere (magnetosphere) | ||||
|
magnetosphere |
Earth atmosphere
, exosphere , magnetic field , magnetic storm , magnetospheric substorm , upper atmosphere |
|||
| magnetospheric substorm (magnetosphericSubstorm) | ||||
|
magnetospheric substorm |
magnetic storm | magnetosphere | ||
| magnitude (magnitude) | ||||
|
magnitude |
absolute magnitude
, apparent magnitude , integrated magnitude |
Pogson scale
, amplitude , brightness , intensity , light curve , photometry |
||
| also see under apparent magnitude | ||||
| main sequence (mainSequence) | ||||
|
main sequence |
Hertzsprung-Russell diagram
, dwarf , main sequence star , turnoff point , zero-age main sequence |
|||
| main sequence star (mainSequenceStar) | ||||
|
main sequence star |
star |
blue straggler star
, dwarf |
main sequence
, mass-luminosity relation |
|
| only the broad classes are shown below; specific type will be found under these, or from the hierarchical list | ||||
| major axis (majorAxis) | ||||
|
major axis |
semimajor axis |
axial ratio
, minor axis |
||
| see terms under semimajor axis | ||||
| Maksutov telescope (MaksutovTelescope) | ||||
|
Maksutov telescope |
catadioptric system
, reflecting telescope |
Bouwers telescope
, Schmidt telescope , wide-field telescope |
||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| manganese (manganese) | ||||
|
manganese (atomic number 25) |
Mn | fundamental chemical element |
manganese star
, mercury manganese star |
|
| FVH: new (2007-OCT-25) | ||||
| manganese star (manganeseStar) | ||||
|
manganese star |
Ap star
, magnetic star , spectrum variable star |
manganese | ||
| mantle (mantle) | ||||
|
mantle |
Earth
, Moon , crust , crustal dynamics , lithosphere , planet |
|||
| map (map) | ||||
|
map |
X-ray map
, contour map |
atlas
, catalog , finding chart , photogrammetry , planet , radar mapping , sky survey , star atlas |
||
| maria (maria) | ||||
|
maria |
Moon
, surface of celestial body |
|||
| Markarian galaxy (MarkarianGalaxy) | ||||
|
Markarian galaxy |
emission line galaxy |
Seyfert galaxy
, peculiar galaxy |
||
| Mars (Mars) | ||||
|
Mars |
planet | Solar System | ||
| FVH: new (2007-SEP-24) | ||||
| mascon (mascon) | ||||
|
mascon |
Moon
, gravity anomaly |
|||
| maser (maser) | ||||
|
maser |
OH maser
, SiO maser , megamaser , water maser |
coherence
, electron pumping , interstellar matter , inverse maser , laser , population inversion , radio recombination line , radio source , stimulated emission |
||
| mass density (massDensity) | ||||
|
mass-density |
density |
Omega baryon
, Omega mass , Omega parameter , mass |
||
| FVH: added NT OMEGA_PARAMETER (2007-SEP-21) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| mass distribution (massDistribution) | ||||
|
mass distribution |
Burkert profile
, Navarro-Frenk-White profile , exponential profile , isothermal sphere |
Dark Matter
, disk galaxy , galaxy , galaxy cluster , galaxy rotation curve , galaxy structure , gravitational lensing |
||
| FVH: new (2007-OCT-5) | ||||
| mass exchange (massExchange) | ||||
|
mass-exchange |
exchange of mass |
cataclysmic variable star
, contact binary star , eruptive binary star , mass , mass flow , mass-loss , mass-transfer |
||
| mass flow (massFlow) | ||||
|
mass-flow |
mass
, mass exchange , mass-loss , mass-transfer |
|||
| mass function (massFunction) | ||||
|
mass-function |
birth rate
, mass , mass-ratio , spectroscopic binary star , star cluster , star count |
|||
| massive galaxy (massiveGalaxy) | ||||
|
massive galaxy |
galaxy | cD galaxy |
D galaxy
, galaxy cluster |
|
| massive object (massiveObject) | ||||
|
massive object |
Seyfert galaxy
, black hole , galactic nucleus |
|||
| massive star (massiveStar) | ||||
|
massive star |
star |
mass-loss
, supermassive star |
||
| mass-loss (massLoss) | ||||
|
mass-loss |
mass loss
, mass-ejection |
bipolar outflow
, coronal mass ejection , jet , stellar wind |
FU Orionis star
, P Cygni line profile , Wolf-Rayet star , binary star , cataclysmic variable star , circumstellar disk , circumstellar envelope , circumstellar matter , circumstellar shell , corona , eruptive binary star , mass exchange , mass flow , mass-transfer , massive star , nova , planetary nebula , stellar evolution , supernova |
|
| mass-luminosity relation (massLuminosityRelation) | ||||
|
mass-luminosity relation |
mass luminosity relation | statistical relation | main sequence star | |
| mass (mass) | ||||
|
mass |
Chandrasekhar mass
, Chandrasekhar-Schoenberg limit |
gravitation
, initial mass function , mass density , mass exchange , mass flow , mass function , mass to light ratio , momentum , spectroscopic binary star , surface gravity |
||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| mass-radius relation (massRadiusRelation) | ||||
|
mass-radius relation |
mass radius relation | statistical relation |
Chandrasekhar mass
, Chandrasekhar-Schoenberg limit , degenerate star |
|
| mass-ratio (massRatio) | ||||
|
mass-ratio |
mass ratio |
binary star
, initial mass function , mass function |
||
| mass to light ratio (massToLightRatio) | ||||
|
mass-to-light ratio |
galaxy
, luminosity , mass , missing mass |
|||
| mass-transfer (massTransfer) | ||||
|
mass-transfer |
mass transfer |
accretion
, convection , fluid dynamics , mass exchange , mass flow , mass-loss |
||
| mathematical analysis (mathematicalAnalysis) | ||||
|
mathematical analysis |
differential equation | catastrophe theory | ||
| combine with other terms | ||||
| mathematical model (mathematicalModel) | ||||
|
mathematical model |
computer model | |||
| FVH: changed COMPUTER_MODELS from U to RT (2007-SEP-21) | ||||
| mathematics (mathematics) | ||||
|
mathematics |
scientific field | |||
| combine with other terms | ||||
| matter (matter) | ||||
|
matter |
antimatter
, atom , circumplanetary matter , circumstellar matter , degenerate matter , molecule |
|||
| Maunder minimum (MaunderMinimum) | ||||
|
Maunder minimum |
solar activity
, sunspot cycle , sunspot number |
|||
| maximum entropy method (maximumEntropyMethod) | ||||
|
maximum entropy method |
Fourier analysis
, frequency analysis , spectroscopic analysis |
|||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| maximum (maximum) | ||||
|
maximum |
photometric element |
light curve
, minimum , variable star , velocity curve |
||
| M dwarf (MDwarf) | ||||
|
M dwarf star |
M star
, dwarf , late-type dwarf |
|||
| mean anomaly (meanAnomaly) | ||||
|
mean anomaly |
orbital anomaly | |||
| mean equinox (meanEquinox) | ||||
|
mean equinox |
equinox | planet | ||
| mean solar time (meanSolarTime) | ||||
|
mean solar time |
time |
Universal Time
, civil time , ephemeris time , equation of time |
||
| measurement (measurement) | ||||
|
measurement |
determination
, measuring instrument , metrology , quantization |
|||
| combine with other terms | ||||
| measuring instrument (measuringInstrument) | ||||
|
measuring instrument |
altimeter
, anemometer , atomic clock , barometer , chronometer , clock , counter , densitometer , heliometer , microdensitometer , micrometer , microphotometer , monochromator , proportional counter , radiometer , range finder , sensitometer , weather station , wind vane |
calibration
, measurement |
||
| mechanical component (mechanicalComponent) | ||||
|
mechanical component |
||||
| combine with other terms | ||||
| mechanical property (mechanicalProperty) | ||||
|
mechanical property |
property | |||
| combine with other terms | ||||
| medium band photometry (mediumBandPhotometry) | ||||
|
medium-band photometry |
CCD photometry
, photoelectric photometry |
DDO photometry
, Geneva photometry , Stromgren photometry , Vilnius photometry , Walraven photometry , infrared photometry , ultraviolet photometry |
broad band photometry
, narrow band photometry |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| megalithic astronomy (megalithicAstronomy) | ||||
|
megalithic astronomy |
archaeoastronomy | |||
| megamaser (megamaser) | ||||
|
megamaser |
maser | |||
| meitnerium (meitnerium) | ||||
|
meitnerium (atomic number 109) |
Mt | fundamental chemical element | ||
| FVH: new (2007-OCT-25) | ||||
| mendelevium (mendelevium) | ||||
|
mendelevium (atomic number 101) |
Md | fundamental chemical element | ||
| FVH: new (2007-OCT-25) | ||||
| Mercury (Mercury) | ||||
|
the planet Mercury |
planet | Solar System | ||
| FVH: new (2007-SEP-24) | ||||
| See mercury for the element rather than the planet. | ||||
| mercury manganese star (mercuryManganeseStar) | ||||
|
mercury manganese star |
B star
, magnetic star |
manganese
, mercury |
||
| mercury (mercury) | ||||
|
mercury (atomic number 80) |
Hg | fundamental chemical element | mercury manganese star | |
| Don't get confused with the planet Mercury (2007-NOV-13) | ||||
| merger (merger) | ||||
|
merger |
galaxy merger | |||
| meridian circle (meridianCircle) | ||||
|
meridian circle |
transit instrument |
astrometry
, meridian , quadrant , vertical circle |
||
| meridian (meridian) | ||||
|
meridian |
celestial sphere
, horizon coordinate system , meridian circle , meridian observation |
|||
| FVH: new (2007-OCT-3) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| meridian observation (meridianObservation) | ||||
|
meridian observation |
meridian
, transit instrument , transit telescope , transit time , zenith telescope |
|||
| meson (meson) | ||||
|
meson |
boson
, elementary particle |
photon
, quark |
||
| mesopause (mesopause) | ||||
|
mesopause |
Earth atmosphere
, ionosphere , mesosphere , thermosphere |
|||
| mesosphere (mesosphere) | ||||
|
mesosphere |
Earth atmosphere
, mesopause , stratopause , upper atmosphere |
|||
| Me star (MeStar) | ||||
|
Me star |
M star
, emission line star |
Me variable star
, late-type variable star |
||
| metagalaxy (metagalaxy) | ||||
|
metagalaxy |
universe | |||
| metal abundance (metalAbundance) | ||||
|
metal abundance |
metallicity | abundance |
CNO anomaly
, Oosterhoff group , chemical element , dredge up , helium-poor star , helium-rich star , hydrogen deficient star , metal-deficient star , metal-poor star , metal-rich star , rare earth , trace element |
|
| metal-deficient star (metalDeficientStar) | ||||
|
metal-deficient star |
star |
metal abundance
, metal-poor star , ultraviolet excess star |
||
| metal line (metalLine) | ||||
|
metal line |
spectral line |
Ca II emission line
, calcium line , carbon line , technetium line |
absorption line
, line blanketing , rare earth |
|
| metal-poor star (metalPoorStar) | ||||
|
metal-poor star |
metal poor star | star |
lithium-poor star
, population II star , population III star , weak G band star |
metal abundance
, metal-deficient star , ultraviolet excess star |
| FVH: added NT POP II and III STARS (2007-SEP-21) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| metal-rich star (metalRichStar) | ||||
|
metal rich star |
metallic line star | star |
Am star
, silicon star |
metal abundance
, red giant bump |
| meteor camera (meteorCamera) | ||||
|
meteor camera |
Baker-Nunn camera | |||
| meteorite crater (meteoriteCrater) | ||||
|
meteorite crater |
meteorite impact
, meteorite , meteor |
|||
| meteorite impact (meteoriteImpact) | ||||
|
meteorite impact |
meteorite crater
, meteorite , meteor |
|||
| meteorite (meteorite) | ||||
|
meteorite |
meteor |
achondrite
, aerolite , ataxite , australite , bediasite , chondrite , iron meteorite , micrometeorite , moldavite , tektite |
Neumann line
, ablation , asteroid , collision , comet , impact crater , interplanetary matter , meteorite crater , meteorite impact |
|
| meteor (meteor) | ||||
|
meteor |
bolide
, fireball , meteorite |
crater
, meteor shower , meteor stream , meteor trail , meteorite crater , meteorite impact , meteoroid dust cloud , meteoroid , radiant meteor |
||
| meteoroid dust cloud (meteoroidDustCloud) | ||||
|
meteoroid dust cloud |
asteroid
, comet , meteoroid , meteor , zodiacal dust |
|||
| meteoroid (meteoroid) | ||||
|
meteoroid |
meteorids |
interplanetary dust
, interplanetary grain , interplanetary matter |
micrometeoroid |
asteroid
, comet , meteoroid dust cloud , meteor , zodiacal dust |
| meteorology (meteorology) | ||||
|
meteorology |
Earth atmosphere | |||
| meteor shower (meteorShower) | ||||
|
meteor shower |
meteor stream
, meteor trail , meteor , radiant meteor , zenith hourly rate |
|||
| named shower not included | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| meteor stream (meteorStream) | ||||
|
meteor stream |
asteroid
, comet , meteor shower , meteor trail , meteor , radiant meteor |
|||
| meteor trail (meteorTrail) | ||||
|
meteor trail |
meteor shower
, meteor stream , meteor , radiant meteor |
|||
| methane (methane) | ||||
|
methane molecule |
CH4
, CH_4 |
interstellar molecule
, molecule |
molecular cloud | |
| FVH: new (2007-OCT-5) | ||||
| metonic cycle (metonicCycle) | ||||
|
metonic cycle |
Saros cycle
, lunar phase |
|||
| metrology (metrology) | ||||
|
metrology |
instrument
, measurement , unit |
|||
| Me variable star (MeVariableStar) | ||||
|
Me variable star |
M giant
, emission line star , late-type variable star |
Me star | ||
| M giant (MGiant) | ||||
|
M giant star |
M star
, giant , late-type giant |
Me variable star | M subgiant | |
| Michelson interferometer (MichelsonInterferometer) | ||||
|
Michelson interferometer |
optical interferometer |
Michelson interferometry
, intensity interferometer |
||
| Michelson interferometry (MichelsonInterferometry) | ||||
|
Michelson interferometry |
Michelson interferometer
, optical interferometry |
|||
| microchannel plate (microchannelPlate) | ||||
|
micro-channel plate |
amplifier | image tube | ||
| FVH: new (2007-SEP-21) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| microdensitometer (microdensitometer) | ||||
|
microdensitometer |
measuring instrument |
densitometer
, microphotometer , photograph |
||
| microdensitometry (microdensitometry) | ||||
|
microdensitometry |
||||
| see microdensitometer | ||||
| micrometeorite (micrometeorite) | ||||
|
micrometeorite |
meteorite | interplanetary matter | ||
| micrometeoroid (micrometeoroid) | ||||
|
micrometeoroid |
meteoroid | |||
| micrometer (micrometer) | ||||
|
micrometer |
measuring instrument | |||
| microphotometer (microphotometer) | ||||
|
microphotometer |
measuring instrument |
microdensitometer
, photography |
||
| microprocessor (microprocessor) | ||||
|
microprocessor |
computer | control system | ||
| microturbulence (microturbulence) | ||||
|
microturbulence |
turbulence Earth atmosphere
, turbulence star atmosphere |
absorption line
, atmosphere |
||
| microwave antenna (microwaveAntenna) | ||||
|
microwave antennaa |
microwave antennas | antenna | microwave radiation | |
| microwave background (microwaveBackground) | ||||
|
cosmic microwave background |
background radiation
, cosmic noise , microwave radiation |
Sunyaev-Zeldovich effect
, X-ray background , cosmology , gamma-ray background , radio background , ultraviolet background |
||
| FVH: Added RT COSMOLOGY (2007-SEP-21) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| microwave emission (microwaveEmission) | ||||
|
microwave emission |
emission spectrum | cosmic noise | ||
| microwave imaging (microwaveImaging) | ||||
|
microwave imaging |
microwave radiation | |||
| microwave (microwave) | ||||
|
microwave |
millimeter radiation | |||
| combine with other terms | ||||
| microwave radiation (microwaveRadiation) | ||||
|
microwave radiation |
electromagnetic radiation | microwave background |
microwave antenna
, microwave imaging , millimeter radiation , remote sensing |
|
| microwave spectroscopy (microwaveSpectroscopy) | ||||
|
microwave spectroscopy |
spectroscopy | |||
| microwave spectrum (microwaveSpectrum) | ||||
|
microwave spectrum |
spectrum | radio spectrum | ||
| Mie scattering (MieScattering) | ||||
|
Mie scattering |
scattering |
Rayleigh scattering
, brillouin scattering |
||
| Milky Way galaxy (MilkyWayGalaxy) | ||||
|
the Milky Way galaxy |
the Galaxy |
galaxy
, Local Group , spiral galaxy |
Galactic anticenter
, Galactic bulge , Galactic center , Galactic cluster , Galactic coordinate system , Galactic cosmic ray , Galactic equator , Galactic halo , Galactic latitude , Galactic longitude , Galactic plane , Galactic pole , Galactic rotation , Goulds belt , high-velocity cloud , high-velocity star , sky brightness |
|
| millimeter astronomy (millimeterAstronomy) | ||||
|
millimeter astronomy |
radio astronomy |
radio observatory
, satellite-borne instrument , submillimeter astronomy |
||
| millimeter radiation (millimeterRadiation) | ||||
|
millimeter radiation |
millimeter wave
, mm radiation |
electromagnetic radiation |
microwave radiation
, microwave |
|
| FVH: added BT electromagnetic_radiation (2007-OCT-8) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| Mills cross antenna (MillsCrossAntenna) | ||||
|
Mills cross antenna |
Mills cross antennas |
antenna
, directional antenna , radio telescope |
pencil beam | |
| Milne Eddington approximation (MilneEddingtonApproximation) | ||||
|
Milne Eddington approximation |
line width
, spectroscopic analysis |
|||
| mineral deposit (mineralDeposit) | ||||
|
mineral deposit |
mineralogy | |||
| mineralogy (mineralogy) | ||||
|
mineralogy |
mineral deposit | |||
| minimum (minimum) | ||||
|
minimum |
photometric element |
light curve
, maximum , variable star , velocity curve |
||
| minor axis (minorAxis) | ||||
|
minor axis |
semiminor axis |
axial ratio
, major axis |
||
| ES: new (2007-OCT-11) see terms under major axis | ||||
| minor planet family (minorPlanetFamily) | ||||
|
minor planet family |
Amor group
, Apollo group , Hirayama family , Trojan group |
asteroid | ||
| not a complete list of terms | ||||
| Mira variable star (MiraVariableStar) | ||||
|
Mira variable star |
Miras
, omicron Ceti star , zeta Aurigae star |
emission line star
, irregular variable star , late-type giant , long period variable star , pulsating variable star |
S Vulpeculae star
, radial pulsation , semi-regular variable star |
|
| mirror cell (mirrorCell) | ||||
|
mirror cell |
mirror | |||
| mirror (mirror) | ||||
|
mirror |
optical component |
dichroic mirror
, primary mirror , telescope mirror |
aluminizing
, aluminum coating , catadioptric system , catoptric system , coating , collimator , figuring , glass , mirror cell , optical aberration , optical instrument , optical material , optical surface , polishing , reflection , thin film |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| missing mass (missingMass) | ||||
|
missing mass |
cosmology
, galaxy cluster , mass to light ratio , velocity dispersion |
|||
| MK classification (MkClassification) | ||||
|
MK classification |
spectral classification | luminosity class |
luminosity
, spectrum |
|
| M magnitude (MMagnitude) | ||||
|
M magnitude |
apparent magnitude |
far infrared radiation
, infrared photometry |
||
| model (model) | ||||
|
model |
computer model
, orrery |
equilibrium figures
, numerical simulation , polytrope , simulation , stellar structure |
||
| combine with other terms | ||||
| MOdified Newtonian Dynamics (ModifiedNewtonianDynamics) | ||||
|
MOdified Newtonian Dynamics |
MOND | gravitation |
Newtonian gravitation
, gravitational effect , gravitational force |
|
| modulation (modulation) | ||||
|
modulation |
||||
| combine with other terms | ||||
| modulation transfer function (modulationTransferFunction) | ||||
|
modulation transfer function |
MTF | transfer function |
optical instrument
, optical testing , optical transfer function |
|
| moldavite (moldavite) | ||||
|
moldavite |
meteorite
, tektite |
australite
, bediasite , chondrite |
||
| molecular astrophysics (molecularAstrophysics) | ||||
|
molecular astrophysics |
cosmochemistry
, molecular band , molecular line , molecular spectroscopy |
|||
| molecular band (molecularBand) | ||||
|
molecular band |
spectral band |
B band
, G band , Phillips band , Swan band |
late-type star
, molecular astrophysics , molecular line , molecular spectrum , zirconium star |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| molecular cloud (molecularCloud) | ||||
|
molecular cloud |
interstellar matter | giant molecular cloud |
interstellar molecule
, methane , molecular hydrogen |
|
| molecular hydrogen (molecularHydrogen) | ||||
|
molecular hydrogen |
hydrogen
, interstellar molecule , molecule |
orthohydrogen
, parahydrogen |
molecular cloud | |
| molecular line (molecularLine) | ||||
|
molecular line |
spectral line |
fine structure
, late-type star , molecular astrophysics , molecular band , spectral band |
||
| molecular spectroscopy (molecularSpectroscopy) | ||||
|
molecular spectroscopy |
molecular astrophysics | |||
| see molecular spectrum | ||||
| molecular spectrum (molecularSpectrum) | ||||
|
molecular spectrum |
spectrum |
Phillips band
, p branch |
B band
, G band , Raman spectroscopy , Swan band , late-type star , molecular band , molecule , organic molecule , q branch , spectral band , vibrational spectrum |
|
| molecule (molecule) | ||||
|
molecule |
matter |
hydrated carbon
, interstellar molecule , methane , molecular hydrogen , organic molecule |
molecular spectrum | |
| molybdenum (molybdenum) | ||||
|
molybdenum (atomic number 42) |
Mo | fundamental chemical element | ||
| FVH: new (2007-OCT-25) | ||||
| momentum (momentum) | ||||
|
momentum |
angular momentum
, mass , velocity |
|||
| monochromator (monochromator) | ||||
|
monochromator |
measuring instrument
, optical instrument |
|||
| Monte Carlo technique (MonteCarloTechnique) | ||||
|
Monte Carlo technique |
data processing | statistics | ||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| Moon (Moon) | ||||
|
Moon |
satellite |
Earthshine
, anomalistic month , apogee , crater , crust , crustal dynamics , equation of the center , libration , lunar dome , lunar eclipse , lunar laser ranging , lunar occultation , lunar theory , mantle , maria , mascon , moonquake , nutation , occultation , perigee , phase angle , phase defect , ray , regression of node , selenology , solar eclipse , surface of celestial body |
||
| Earth's satellite; see under satellite or planet for more rts; see also lunar | ||||
| moonquake (moonquake) | ||||
|
moonquake |
Moon
, earthquake |
|||
| morphology (morphology) | ||||
|
morphology |
classification
, disk flaring |
|||
| combine with other terms | ||||
| motion (motion) | ||||
|
motion |
apparent superluminal motion
, apsidal motion , internal motion , orbital motion , polar motion , proper motion , solar motion , space motion , stellar motion , wave motion |
orbit
, orrery , planetarium |
||
| combine with other terms | ||||
| mottle (mottle) | ||||
|
mottle |
Sun
, chromosphere |
|||
| moving cluster parallax (movingClusterParallax) | ||||
|
moving cluster parallax |
cluster parallax | parallax |
dynamical parallax
, kinematic parallax , open star cluster , proper motion , radiant moving cluster , secular parallax |
|
| m region (mRegion) | ||||
|
m region |
solar corona | |||
| M star (MStar) | ||||
|
M star |
late-type star |
M dwarf
, M giant , M subdwarf , M subgiant , M supergiant , Me star |
spectral type
, titanium oxide |
|
| M subdwarf (MSubdwarf) | ||||
|
M subdwarf star |
M star
, subdwarf |
|||
| M subgiant (MSubgiant) | ||||
|
M subgiant star |
M star
, subgiant |
M giant | ||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| M supergiant (MSupergiant) | ||||
|
M supergiant star |
M star
, late-type supergiant |
|||
| multi-channel detector (multiChannelDetector) | ||||
|
multi-channel detector |
multichannel detector | detector |
CCD detector
, diode array , image tube , reticon array , television detector |
charge-coupled device
, multi-channel spectrograph |
| multi-channel spectrograph (multiChannelSpectrograph) | ||||
|
multi-channel spectrograph |
multi-channel spectrometer
, multichannel spectrograph |
spectrograph | multi-channel detector | |
| multi-color photometry (multiColorPhotometry) | ||||
|
multi-color photometry |
multicolor photometry | photometry | ||
| multi-fiber spectrograph (multiFiberSpectrograph) | ||||
|
multi-fiber spectrograph |
spectrograph |
integral field spectrograph
, optical fiber , three-dimensional spectrum |
||
| FVH: new (2007-SEP-21) | ||||
| multi-periodic pulsation (multiPeriodicPulsation) | ||||
|
multi-periodic pulsation |
multiperiodic pulsation | double-mode pulsation |
Fourier analysis
, frequency analysis , multi-periodic variable star , pulsating variable star , pulsation mode |
|
| multi-periodic variable star (multiPeriodicVariableStar) | ||||
|
multi-periodic variable star |
multiperiodic variable star |
periodic variable star
, pulsating variable star |
PG1159 star
, RS Canum Venaticorum star , SX Phoenicis star , ZZ Ceti star , beta Cephei star , delta Scuti star , double-mode variable star , dwarf Cepheid |
multi-periodic pulsation
, overtone frequency , overtone mode , pulsation mode |
| multiple galaxy (multipleGalaxy) | ||||
|
multiple galaxy |
galaxy |
galaxy cluster
, galaxy group |
||
| multiple mirror telescope (multipleMirrorTelescope) | ||||
|
multiple mirror telescope |
MMT |
optical telescope
, reflecting telescope |
active optics
, segmented optics , very large telescope |
|
| multiple star (multipleStar) | ||||
|
multiple star |
triple star |
binary star
, companion star , orbit determination , orbit |
||
| FVH: moved triple_star to NT (2007-OCT-1) | ||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | ||||
| Description | alt | broader | narrower | related |
| multi-slit spectrograph (multiSlitSpectrograph) | ||||
|
multi-slit spectrograph |
spectrograph |
integral field spectrograph
, spectrograph slit , three-dimensional spectrum |
||
| FVH: new (2007-SEP-21) | ||||
| muon (muon) | ||||
|
muon |
lepton | |||