WD 1201+137

All names: WD 1201+137, USNO-B1.0 1035-00197052, WDJ120348.70+133032.80, SDSS J120348.71+133032.6, SDSS J120348.71+133032.7, J1203+1330, Gaia EDR3 3920078086272085888, Gaia DR2 3920078086272085888, Gaia DR3 3920078086272085888, GALEX J120348.6+133032

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 12 03 48.73 (0.2) 12 03 48.71 12 03 48.73 (0.2) 12 03 48.73 12 03 48.70 (0.2) 12 03 48.73 12 03 48.58
Declination 13 30 32.10 (0.09) 13 30 32.67 13 30 32.12 (0.1) 13 30 32.10 13 30 32.80 (0.09) 13 30 32.12 13 30 29.88
Spectral type DC DC DC DC DC DC ? DC
Effective temperature [K] 7220.0 (58) 7274.0 (53) 7792.0 7493.0 6979.0 (205)
log(g) [cgs] 8.03 (0.02) 8.04 (0.03) 8.28 8.18 7.99 (0.05)
Mass [M] 0.594 (0.02) 0.6 (0.03) 0.77 0.688 0.57 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 1.5700 1.8990 1.7300
log(H/He) -3.4 -3.6
log(C/He)
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] 10.40 (0.2) 10.36 (0.3) 10.36 (0.3) 10.40 10.40 (0.2) 10.36 (0.3)
Distance [pc] 96.14 (2) 96.53 (2) 96.55 (2) 96.14 96.14 (2) 96.55 (2)
Composition He
Proper motion (right ascension) [mas/yr] 28.64416262 (0.2) 28.55538597 (0.4) 28.644 (0.2) 28.55538597
Proper motion (declination) [mas/yr] -43.66357552 (0.1) -43.64258583 (0.2) -43.664 (0.1) -43.64258583
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.00
V magnitude
R magnitude 18.50
I magnitude
J magnitude 17.96 (0.04)
H magnitude 17.92 (0.09)
K magnitude 17.81 (0.2)
u magnitude 18.93 (0.02) 18.93 (0.02) 18.93 (0.02) 18.93 (0.02)
g magnitude 18.50 (0.007) 18.49 (0.007) 18.49 (0.007)
r magnitude 18.39 (0.008) 18.39 (0.008) 18.39 (0.008)
i magnitude 18.41 (0.01) 18.40 (0.01) 18.40 (0.01)
z magnitude 18.49 (0.03) 18.49 (0.03) 18.49 (0.03)
G magnitude 18.38 (0.02) 18.41 18.38 18.38 (0.003) 18.41
BP magnitude 18.54 (0.02) 18.55 18.55
RP magnitude 18.12 (0.02) 18.11 18.11
Pan g magnitude 18.51 (0.006) 18.51 (0.006)
Pan r magnitude 18.41 (0.007) 18.41 (0.007)
Pan i magnitude 18.43 (0.009) 18.43 (0.01)
Pan z magnitude 18.52 (0.007) 18.52 (0.007)
Pan y magnitude 18.59 (0.01) 18.59 (0.01)
E(B-V) 0.005

* 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.