SDSS J075021.83+220033.1

All names: SDSS J075021.84+220033.1, Gaia DR2 674609688549903104, GALEX J075021.8+220033, Gaia EDR3 674609688549903104, SDSS J075021.83+220033.1, Gaia DR3 674609688549903104, WD 0747+221

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 50 21.84 (0.4) 07 50 21.84 07 50 21.84 (0.4) 07 50 21.84 (0.4) 07 50 21.84 07 50 21.84 07 50 21.84
Declination 22 00 33.07 (0.3) 22 00 33.15 22 00 33.07 (0.3) 22 00 33.18 (0.3) 22 00 33.15 22 00 27.72 22 00 33.15
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 17637.0 22067.0 (860) 23014.0 (1030)
log(g) [cgs] 7.41 7.88 (0.2) 7.90 (0.2)
Mass [M] 0.356
log(Luminosity) [L]
Cooling age [Gyr] 0.0558
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 1.41 (0.4) 1.20 (0.5) 1.41 (0.4)
Distance [pc] 710.57 (224) 832.04 (375) 710.58 (224)
Composition H
Proper motion (right ascension) [mas/yr] -4.675684532 (0.5) -6.16490966 (0.9) -4.676 (0.5) -4.5
Proper motion (declination) [mas/yr] -6.989125567 (0.3) -6.769101725 (0.5) -6.989 (0.3) -7.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.50 (0.03) 19.50 (0.03) 19.51 (0.03) 19.50 19.50 (0.03)
g magnitude 19.55 (0.01) 19.55 (0.01) 19.54 (0.02) 19.53 19.53 (0.02)
r magnitude 19.92 (0.02) 19.92 (0.02) 19.93 (0.03) 19.92 19.92 (0.02)
i magnitude 20.27 (0.04) 20.27 (0.04) 20.22 (0.04) 20.21 20.21 (0.04)
z magnitude 20.37 (0.1) 20.37 (0.1) 20.86 (0.3) 20.86 20.85 (0.2)
G magnitude 19.74 (0.03) 19.80 19.74 (0.005)
BP magnitude 19.68 (0.03) 19.54
RP magnitude 19.97 (0.08) 19.92
Pan g magnitude 19.59 (0.01)
Pan r magnitude 19.95 (0.01)
Pan i magnitude 20.24 (0.01)
Pan z magnitude 20.48 (0.08)
Pan y magnitude 20.38 (0.1)
E(B-V) 0.043

* 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.