SDSS J073711.86+223402.0

All names: SDSS J073711.85+223402.0, GALEX J073711.8+223402, Gaia EDR3 865718690792058496, Gaia DR2 865718690792058496, SDSS J073711.86+223402.00, SDSS J073711.86+223402.0, Gaia DR3 865718690792058496

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 37 11.83 (0.6) 07 37 11.85 07 37 11.83 (0.8) 07 37 11.86 (0.6) 07 37 11.86
Declination 22 34 02.01 (0.5) 22 34 02.05 22 34 02.01 (0.8) 22 34 02.04 (0.5) 22 34 02.04
Spectral type DB DB DB DB
Effective temperature [K] 14390.0 13016.0 13373.0 13483.0 (447)
log(g) [cgs] 9.29 7.08 7.21 9.07 (0.3)
Mass [M] 1.291 0.232 0.261 1.27 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.1297
log(H/He) <-6.156
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 1.48 (0.7) 1.19 (1) 1.48 (0.7)
Distance [pc] 675.53 (314) 843.88 (873) 675.54 (314)
Composition He
Proper motion (right ascension) [mas/yr] -21.27578663 (0.6) -21.58862001 (2) -21.276 (0.6)
Proper motion (declination) [mas/yr] -2.037860463 (0.5) 0.997864183 (1) -2.038 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.94 (0.04) 19.95 (0.04) 19.95 (0.04)
g magnitude 19.95 (0.02) 19.95 (0.02) 19.95 (0.02)
r magnitude 20.17 (0.02) 20.15 (0.02) 20.15 (0.02)
i magnitude 20.31 (0.04) 20.31 (0.04) 20.30 (0.04)
z magnitude 20.48 (0.1) 20.46 (0.1) 20.46 (0.1)
G magnitude 20.03 (0.08) 20.10 20.03 (0.007)
BP magnitude 19.87 (0.08) 19.64
RP magnitude 19.76 (0.2) 19.64
Pan g magnitude 19.99 (0.02)
Pan r magnitude 20.16 (0.01)
Pan i magnitude 20.39 (0.04)
Pan z magnitude 20.87 (0.08)
Pan y magnitude 20.26 (0.2)
E(B-V) 0.035

* 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.