GD 462

All names: TIC 356502320, [TFW97] J100936.50+635838.30, WDJ100936.36+635837.35, GALEX J100936.3+635835, PG 1005+642, Gaia DR3 1053211437944753024, EGGR 432, FBS B 680, Gaia EDR3 1053211437944753024, Gaia DR2 1053211437944753024, SDSS J100936.35+635837.3, GD 462, WD 1005+642, 2MASS J10093635+6358371, FBS 1005+642, J1009+6358, SDSS J100936.36+635837.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Kilic et al. 2020 McCleery et al. 2020 MWDD H Gaia DR2 Stilism Koester et al. 2014 Gianninas et al. 2011 Liebert et al. 2005 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 10 09 36.12 (0.02) 10 09 36.13 (0.03) 10 09 36.13 (0.03) 10 09 36.12 10 09 36.37 (0.02) 10 09 36.13 10 09 37.44
Declination 63 58 36.02 (0.02) 63 58 36.06 (0.03) 63 58 36.06 (0.03) 63 58 36.02 63 58 37.35 (0.02) 63 58 36.06 63 58 33.60
Spectral type DA DA DA DA DA DA DA DA2.4 DA
Effective temperature [K] 20305.0 (219) 19686.0 (395) 20305.0 (219) 19428.8 (262) 17736.0 19450.0 (264) 20700.0 (322) 19660.0 (302) 20623.0 (168)
log(g) [cgs] 8.01 (0.008) 7.96 (0.03) 8.01 (0.008) 7.95 (0.02) 7.87 7.92 (0.09) 7.95 (0.05) 7.93 (0.05) 8.02 (0.006)
Mass [M] 0.628 (0.006) 0.602 (0.01) 0.628 (0.006) 0.545 0.579 (0.05) 0.6 (0.03) 0.58 (0.03) 0.636 (0.005)
log(Luminosity) [L] -1.59
Cooling age [Gyr] 0.0851 0.0813
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) <-8.20
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] 25.38 (0.02) 25.38 (0.02) 25.40 (0.04) 25.40 (0.04) 25.38 25.38 (0.02) 25.40 (0.04)
Distance [pc] 39.40 (0.04) 39.40 (0.03) 39.37 (0.06) 39.37 (0.06) 42.00 41.00 39.40 39.40 (0.04) 39.37 (0.06)
Composition H H H H
Proper motion (right ascension) [mas/yr] -100.7909002 (0.02) -100.6727266 (0.05) -100.791 (0.02) -100.6727266
Proper motion (declination) [mas/yr] -83.45097817 (0.02) -83.57792433 (0.06) -83.451 (0.02) -83.57792433
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.50
V magnitude 13.69 (0.02) 13.74 14.20
R magnitude
I magnitude
J magnitude 14.23 (0.03)
H magnitude 14.33 (0.05)
K magnitude 14.36 (0.05)
u magnitude 13.61 (0.003) 13.61 (0.003) 13.59
g magnitude 13.54 (0.003) 13.54 (0.003) 13.53
r magnitude 13.93 (0.003) 13.93 (0.003) 13.94
i magnitude 14.22 (0.003) 14.22 (0.003) 14.21
z magnitude 14.54 (0.004) 14.54 (0.004) 14.50
G magnitude 13.75 (0.001) 13.76 13.76 13.75 13.75 (0.003) 13.76
BP magnitude 13.66 (0.001) 13.64 13.64
RP magnitude 13.93 (0.0007) 13.93 13.93
Pan g magnitude 13.64 (0)
Pan r magnitude 13.94 (0.003)
Pan i magnitude 14.25 (0.004)
Pan z magnitude 14.52 (0.002)
Pan y magnitude 14.69 (0.006)
E(B-V) 0.001

* 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.