WD 1200+651

All names: Gaia DR3 1585063422960992256, Gaia DR2 1585063422960992256, SDSS J120331.89+645101.4, Gaia EDR3 1585063422960992256, 1200+651, GALEX J120331.8+645100, SDSS J120331.90+645101.3, J1203+6450, SDSS J120331.77+645059.5, J1203+6451, SDSS J120331.83+645100.5, SDSS J120331.89+645101.3, WDJ120331.90+645101.41, WD 1200+651

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Jewett et al. 2024 Coutu et al. 2019 Leggett et al. 2018 Gaia DR2 Stilism Liebert et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 03 31.75 (0.07) 12 03 31.89 12 03 31.90 12 03 31.75 (0.09) 12 03 31.75 12 03 31.90 (0.07) 12 03 31.75 12 03 31.89 12 03 30.36 12 03 31.89
Declination 64 50 59.17 (0.07) 64 51 01.44 64 51 01.41 64 50 59.24 (0.09) 64 50 59.17 64 51 01.41 (0.07) 64 50 59.24 64 51 01.33 64 50 54.24 64 51 01.29
Spectral type DQA DQA DQ DQA4.2 DQ DQ DQ hotDQ DQhot DQ;CI DQ_CI hotDQ
Effective temperature [K] 12700.0 (71) 12700.0 (71) 12359.0 (455) 11930.0 (275) 14000.0 12229.0 (194) 12727.0 (129) 12877.0 (138)
log(g) [cgs] 8.83 (0.008) 8.83 8.77 8.68 (0.04) 8.75 (0.02) 8.97 (0.04) 9.98 (0.03)
Mass [M] 1.107 (0.006) 1.107 (0.006) 1.0689 1.019 (0.03) 1.061 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.4200 (0.02) 1.3200 1.2640 (0.1)
log(H/He) -2.0 -2.0
log(C/He) 0.0 -1.5894 (0.1)
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] 11.47 (0.09) 11.46 11.27 (0.4) 11.46 (0.1) 11.47 11.47 (0.09) 11.46 (0.1)
Distance [pc] 87.16 (0.7) 87.28 (0.8) 88.73 (3) 87.28 (0.8) 87.16 87.16 (0.7) 87.28 (0.8)
Composition He He
Proper motion (right ascension) [mas/yr] -61.9328297 (0.08) -61.9157735 (0.2) -61.933 (0.08) -61.916 -62.0
Proper motion (declination) [mas/yr] -140.1480068 (0.09) -140.2208528 (0.2) -140.148 (0.09) -140.221 -141.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.47 (0.009) 17.47 (0.009) 17.43 (0.01) 17.46 (0.02) 17.38 17.45 (0.02)
g magnitude 17.51 (0.005) 17.50 (0.005) 17.50 (0.005) 17.50 (0.02) 17.49 17.50 (0.02)
r magnitude 17.77 (0.006) 17.77 (0.006) 17.78 (0.006) 17.79 (0.02) 17.77 17.80 (0.02)
i magnitude 18.03 (0.008) 18.03 (0.008) 18.04 (0.008) 18.02 (0.02) 17.98 18.03 (0.02)
z magnitude 18.26 (0.03) 18.26 (0.03) 18.24 (0.03) 18.27 (0.03) 18.23 18.28 (0.03)
G magnitude 17.63 (0.008) 17.66 17.63 17.63 (0.003) 17.66
BP magnitude 17.60 (0.008) 17.54 17.54
RP magnitude 17.70 (0.01) 17.68 17.68
Pan g magnitude 17.56 (0.003)
Pan r magnitude 17.76 (0.004)
Pan i magnitude 18.05 (0.004)
Pan z magnitude 18.25 (0.005)
Pan y magnitude 18.39 (0.02)
E(B-V) 0.006

* 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.