WD 1737+557

All names: GALEX J173847.0+554154, Gaia DR2 1421058683718395648, SDSS J173847.09+554154.9, WD 1737+557, SDSS J173847.10+554154.8, Gaia EDR3 1421058683718395648, SDSS J173847.10+554154.9, Gaia DR3 1421058683718395648

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 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 17 38 47.09 (1) 17 38 47.10 17 38 47.10 (2) 17 38 47.11 (1) 17 38 47.10 17 38 46.25 17 38 47.10 17 38 47.10
Declination 55 41 54.77 (0.8) 55 41 54.95 55 41 54.77 (1) 55 41 54.87 (0.8) 55 41 54.97 55 41 49.20 55 41 54.89 55 41 54.89
Spectral type DA DA2 DA DA DA DA
Effective temperature [K] 19707.0 22173.0 (1327) 21194.0 (1310)
log(g) [cgs] 8.56 8.03 (0.4) 7.98 (0.3)
Mass [M] 0.973 0.615 (0.2)
log(Luminosity) [L]
Cooling age [Gyr] 0.2313
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] 1.86 (0.9) 1.80 (1) 1.86 (0.9)
Distance [pc] 537.54 (247) 556.38 (414) 537.55 (247)
Composition H
Proper motion (right ascension) [mas/yr] -6.496700611 (1) -7.448496698 (3) -6.497 (1) -2.1 -2.0
Proper motion (declination) [mas/yr] -6.203762732 (0.9) -5.294533036 (2) -6.204 (0.9) -13.5 -11.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.67 (0.07) 20.49 (0.06) 20.50 (0.06) 20.50 20.50 (0.06) 20.50 (0.06)
g magnitude 20.48 (0.03) 20.50 (0.03) 20.50 (0.03) 20.50 20.50 (0.03) 20.50 (0.03)
r magnitude 20.80 (0.04) 20.82 (0.05) 20.81 (0.04) 20.83 20.80 (0.04) 20.83 (0.04)
i magnitude 21.05 (0.08) 21.12 (0.08) 21.11 (0.08) 21.09 21.11 (0.08) 21.09 (0.08)
z magnitude 21.27 (0.3) 20.75 (0.2) 20.74 (0.2) 20.71 20.73 (0.2) 20.71 (0.2)
G magnitude 20.66 (0.1) 20.74 20.66 (0.01)
BP magnitude 20.38 (0.1) 20.48
RP magnitude 20.42 (0.2) 20.87
Pan g magnitude 20.55 (0.03)
Pan r magnitude 20.82 (0.02)
Pan i magnitude 21.04 (0.04)
Pan z magnitude 20.93 (0.2)
Pan y magnitude
E(B-V) 0.027

* 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.