SDSS J212448.91+112445.2

All names: SDSS J212448.91+112445.2, SDSS J212448.91+112445.20, Gaia DR3 1745614553233797504, Gaia EDR3 1745614553233797504, GALEX J212448.8+112445, Gaia DR2 1745614553233797504

Parameter Unit Gaia EDR3 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Gaia DR2 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 21 24 48.92 (1) 21 24 48.91 21 24 48.92 (2) 21 24 48.91 21 24 48.91
Declination 11 24 45.20 (1) 11 24 45.25 11 24 45.20 (2) 11 24 45.20 11 24 45.20
Spectral type DB DB DB
Effective temperature [K] 24646.0 23977.0 (2008)
log(g) [cgs] 8.03 7.52 (0.2)
Mass [M☉] 0.624 0.392 (0.08)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He) -2.983
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -1.45 (1)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -1.333423284 (1)
Proper motion (declination) [mas/yr] -5.640981143 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.66 (0.06) 20.71 (0.06) 20.71 (0.06)
g magnitude 20.64 (0.03) 20.63 (0.03) 20.63 (0.03)
r magnitude 21.05 (0.05) 21.10 (0.1) 21.10 (0.1)
i magnitude 21.25 (0.09) 21.24 (0.3) 21.24 (0.3)
z magnitude 21.42 (0.4) 21.40 (0.4)
G magnitude 20.76 (0.1) 20.91
BP magnitude 20.57 (0.1)
RP magnitude 21.14 (0.1)
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.