SDSS J103121.97+202315.0

Other names: SDSS J103121.97+202315.1

Parameter Unit SDSS DR12 Simbad Kleinman et al. 2013 Kleinman et al. 2013
Right ascension 10 31 21.97 10 31 21.97 10 31 21.97 10 31 21.97
Declination 20 23 15.08 20 23 15.08 20 23 15.10 20 23 15.10
Spectral type DA+M DAM DAM
Effective temperature [K] 17815 16025
log(g) [cgs] 7.91 7.94
Mass [M]
log(Luminosity) [L]
Age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
Parallax [mas]
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr]
Proper motion (declination) [mas/yr]
Variability
Magnetic
Has a disc
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 13.21
H magnitude 12.64
K magnitude 12.36
u magnitude 16.36 16.45 16.45 16.45
g magnitude 16.10 16.07 16.07 16.07
r magnitude 16.25 16.30 16.30 16.30
i magnitude 16.72 16.50 16.52 16.52
z magnitude 17.33 16.33 16.33 16.33

Spectra

Absorption lines

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