Science Quiz / Astrophysics Number Knowledge

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Can you name the Astrophysics Values?

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Score 0/97 Timer 20:00
?AnswerComments
10^2Prefix
Earth mass1 sf
1 miMile in feet or yards (4 sf)
Distance to LMCLarge Magellenic Cloud, 2 sf (ly)
Solar mass1 sf
10^9Prefix
Lyman betaHydrogen spectral line, 3 sf
10^12Prefix
Balmer gammaHydrogen spectral line, 3 sf
NAvagadro's number (4 sf)
AlphaFine structure constant fraction. 3 sf
10^3Prefix
Scale height is when a quantity decreases by a factor ofScale height denoted by H. Might have to add a space after the answer.
Lunar mass3 sf
1 yrYear in seconds (3 sf)
Circular velocity of Sun around Milky Way center2 sf
Age of the universe4 sf
Balmer deltaHydrogen spectral line, 3 sf
10^-21Prefix
Paschen alphaHydrogen spectral line, 3 sf
10^-3Prefix
1 pcParsec in m (2 sf)
Distance from Sun to Milky Way centerRough, 1 sf for pc, 2 sf for ly
X-RayX-Ray wavelength range
Distance to nearest starsRough, 2 sf (ly)
Balmer alphaHydrogen spectral line, 3 sf
cSpeed of light (3 sf)
10^-18Prefix
hch = Planck angular momentum, c = speed of light
Balmer betaHydrogen spectral line, 3 sf
mnNeutron mass, mks, 3 sf
kBoltzmann's constant (mks units) (3 sf)
OrangeOrange wavelength range
?AnswerComments
1 lyLight-year in meters (2 sf)
10^15Prefix
GreenGreen wavelength range
10^-15Prefix
10^24Prefix
RedRed wavelength range
Earth radius2 sf
1 pc/MyrEquals one what? (speed with different units)
Distance to Andromeda3 sf, ly
1 lyLight-year in AU (1 sf)
10^-12Prefix
Rho waterMass density of water (cgs)
UltravioletUltraviolet wavelength range
10^6Prefix
10^-9Prefix
Age of the Sun3 sf
10^21Prefix
Lyman gammaHydrogen spectral line, 3 sf
BlueBlue wavelength range
1 CCoulomb in statcoulomb (statC) (3 sf)
kBoltzmann constant
1 eVeV in Joules (2 sf)
1 pcParsec in ly (3 sf)
Solar luminosity2 sf
PiRatio of a circle's circumference to its diameter (10 sf)
mpProton mass in terms of energy (3 sf)
GGravitational constant, 3 sf
e-Electron charge (absolute value) (2 sf)
Lunar radius2 sf
Rho atmRough mass density of air (cgs)
10^1Prefix
Velocity of Earth relative to CMB2 sf
H atmRough scale height of Earth's atmosphere
?AnswerComments
Velocity of Earth around Sun2 sf, km/s
YellowYellow wavelength range
MicrowaveMicrowave wavelength range (micrometer = microm)
Lyman deltaHydrogen spectral line, 3 sf
1 inInch in cm (3 sf)
Diameter of local group of galaxies2 sf
hPlanck's constant (mks units) (4 sf)
Paschen betaHydrogen spectral line, 3 sf
10^-2Prefix
1 miMile in km (2 sf)
10^18Prefix
GammaGamma wavelength range is less than...
Solar radius1 sf
10^-1Prefix
1 ergerg in Joules
meElectron mass, mks, 3 sf
10^-6Prefix
10^-24Prefix
lnln x = ? log_10 x (4 sf)
Paschen gammaHydrogen spectral line, 3 sf
1 AUAstronomical unit in meters (2 sf)
Lyman alphaHydrogen spectral line, 3 sf
mpProton mass, mks, 3 sf
meElectron mass in terms of energy (3 sf)
VioletViolet wavelength range
mnNeutron mass in terms of energy (3 sf)
Paschen deltaHydrogen spectral line, 3 sf
e4 sf
Distance to farthest (barely) visible (naked eye) starsRough, 1 sf (ly)
InfraredInfrared wavelength range
RadioRadio wavelength is greater than...

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