SDSS J213100.96+121144.5

All names: SDSS J213100.96+121144.50, Gaia DR3 1745960731894155904, SDSS J213100.96+121144.4, Gaia DR2 1745960731894155904, SDSS J213100.96+121144.5, Gaia EDR3 1745960731894155904, [SLB2011b] 322.75399+12.19569

Parameter Unit Gaia EDR3 SDSS DR12 Kepler et al. 2016 Simbad
Right ascension 21 31 00.96 (0.2) 21 31 00.95 21 31 00.96 (0.2)
Declination 12 11 44.48 (0.2) 12 11 44.58 12 11 44.54 (0.2)
Spectral type sdB: sdB
Effective temperature [K] 25441.0 (1820)
log(g) [cgs] 4.59 (0.2)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.12 (0.2)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -0.365952764 (0.2) -0.366 (0.2)
Proper motion (declination) [mas/yr] -3.62155469 (0.2) -3.622 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.16 (0.05) 20.14 (0.05) 20.14 (0.05)
g magnitude 21.17 (0.05) 20.38 (0.03) 18.81 (0.01)
r magnitude 20.38 (0.03) 19.69 (0.02) 18.62 (0.01)
i magnitude 20.17 (0.04) 19.67 (0.03) 18.57 (0.02)
z magnitude 19.63 (0.07) 19.35 (0.06) 18.52 (0.04)
G magnitude 18.91 (0.02) 18.91 (0.003)
BP magnitude 19.25 (0.02)
RP magnitude 18.50 (0.03)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.