Astrophysics (Index)About

absolute magnitude

(M)
(magnitude as would be seen from 10 parsecs)

Absolute magnitude is a magnitude-style (logarithmic) measurement of brightness indicating the magnitude as would be seen from 10 parsecs (i.e., what would be its apparent magnitude at that distance) adjusted to what it would be if there were no reddening. As with all astronomical magnitude scales, the smaller the number, the brighter. Absolute magnitudes of some stars:


(measure,brightness,logarithmic,EMR,magnitude)
Further reading:
http://en.wikipedia.org/wiki/Absolute_magnitude

Referenced by pages:
Achernar
A-type star (A)
Alpha Centauri
Arcturus
B-type star (B)
bolometric magnitude (Mbol)
brown dwarf (BD)
Canopus
Cepheid variable (CEP)
color-color diagram (CCD)
color-magnitude diagram (CMD)
distance modulus (μ)
Faber-Jackson relation (FJR)
F-type star (F)
G-type star (G)
globular cluster luminosity function (GCLF)
giant star
H-R diagram (HRD)
hypergiant
K-type star (K)
luminosity distance (dL)
magnitude
main sequence fitting
M-type star (M)
O5 spectral type (O5)
O-type star (O)
redshift-magnitude relation
RR Lyrae variable (RRL)
Scholz's Star
Sirius
spectroscopic parallax
standard candle
stellar distance determination
stellar luminosity determination
subdwarf (sd)
Sun
supergiant
volume weighting
zero-age main sequence (ZAMS)

Index