WD 1502+048

All names: GALEX J150446.2+044142, WD 1502+048, SDSS J150446.22+044143.0, Gaia EDR3 1156625862360316032, Gaia DR3 1156625862360316032, SDSS J150446.22+044143.3, SDSS J150446.23+044143.3, Gaia DR2 1156625862360316032, SDSS J150446.22+044143.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 15 04 46.23 (0.3) 15 04 46.23 15 04 46.23 (0.4) 15 04 46.23 15 04 46.23 (0.3) 15 04 46.22 15 04 45.74 15 04 46.23 15 04 46.23
Declination 04 41 41.77 (0.2) 04 41 43.09 04 41 41.82 (0.3) 04 41 41.77 04 41 43.34 (0.2) 04 41 43.36 04 41 40.20 04 41 43.32 04 41 43.33
Spectral type DA DA DA DA DA5.8 DA DA
Effective temperature [K] 8129.0 6682.0 (250) 8699.0 (71) 8503.0 (80) 8761.0 (70)
log(g) [cgs] 7.32 6.92 (0.2) 8.01 (0.1) 7.69 (0.2) 8.10 (0.1)
Mass [M] 0.284 0.175 (0.04) 0.458 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.5259
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] 4.07 (0.3) 3.68 (0.5) 4.07 4.07 (0.3)
Distance [pc] 245.82 (18) 271.53 (34) 245.82 245.82 (18)
Composition H
Proper motion (right ascension) [mas/yr] 1.047213126 (0.4) 1.892792323 (0.8) 1.047 (0.4)
Proper motion (declination) [mas/yr] -97.93472489 (0.3) -99.65549435 (0.7) -97.935 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.71 (0.03) 19.71 (0.03) 19.71 (0.04) 19.72 19.72 (0.04) 19.72 (0.04)
g magnitude 19.29 (0.01) 19.30 (0.01) 19.25 (0.02) 19.25 19.26 (0.02) 19.25 (0.02)
r magnitude 19.22 (0.01) 19.22 (0.01) 19.22 (0.02) 19.22 19.21 (0.02) 19.22 (0.02)
i magnitude 19.23 (0.02) 19.23 (0.01) 19.22 (0.03) 19.23 19.22 (0.03) 19.23 (0.03)
z magnitude 19.37 (0.06) 19.37 (0.06) 19.33 (0.08) 19.33 19.34 (0.08) 19.33 (0.08)
G magnitude 19.16 (0.06) 19.20 19.16 19.16 (0.005)
BP magnitude 19.38 (0.06) 19.32
RP magnitude 18.89 (0.05) 18.87
Pan g magnitude 19.23 (0.01)
Pan r magnitude 19.19 (0.01)
Pan i magnitude 19.26 (0.007)
Pan z magnitude 19.34 (0.01)
Pan y magnitude 19.39 (0.03)
E(B-V) 0.028

* 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.