SDSS J144601.01+625733.6

All names: Gaia EDR3 1620461611406137728, SDSS J144600.99+625733.7, SDSS J144601.02+625733.80, Gaia DR3 1620461611406137728, WD 1444+631, SDSS J144601.01+625733.6, SDSS J144601.02+625733.7, GALEX J144600.9+625733, Gaia DR2 1620461611406137728, SDSS J144601.02+625733.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 46 00.97 (0.2) 14 46 00.99 14 46 00.97 (0.4) 14 46 01.02 (0.2) 14 46 01.02 14 46 00.89 14 46 01.02
Declination 62 57 33.79 (0.2) 62 57 33.74 62 57 33.79 (0.3) 62 57 33.62 (0.2) 62 57 33.67 62 57 28.08 62 57 33.76
Spectral type DB DB DB DB DB DB+MS
Effective temperature [K] 17922.0 20878.0 20736.0 10753.0 (126) 17653.0 (371) 17841.0 (486)
log(g) [cgs] 8.34 8.20 8.19 8.00 (0) 8.18 (0.2) 8.06 (0.2)
Mass [M] 0.806 0.72 0.715 0.624 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.0961
log(H/He) <-5.429 -5.49 (0.3)
log(C/He)
log(Ca/He) <-10.68
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] 2.38 (0.2) 1.93 (0.3) 2.38 (0.2)
Distance [pc] 419.38 (38) 517.65 (91) 198.00 419.38 (38)
Composition He
Proper motion (right ascension) [mas/yr] -20.72975204 (0.3) -20.52356241 (0.7) -20.73 (0.3) -25.8
Proper motion (declination) [mas/yr] 10.57490737 (0.3) 11.31372799 (0.6) 10.575 (0.3) 15.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.18 (0.03) 19.18 (0.03) 19.33 (0.03) 19.33 19.31 (0.03)
g magnitude 19.30 (0.01) 19.30 (0.01) 19.36 (0.02) 19.36 19.36 (0.02)
r magnitude 19.66 (0.02) 19.66 (0.02) 19.68 (0.02) 19.67 19.68 (0.02)
i magnitude 19.91 (0.03) 19.91 (0.03) 19.95 (0.03) 19.94 19.95 (0.03)
z magnitude 20.32 (0.2) 20.32 (0.2) 20.70 (0.2) 20.69 20.70 (0.2)
G magnitude 19.48 (0.04) 19.54 19.48 (0.004)
BP magnitude 19.52 (0.04) 19.40
RP magnitude 19.72 (0.06) 19.55
Pan g magnitude 19.38 (0.007)
Pan r magnitude 19.64 (0.02)
Pan i magnitude 19.94 (0.02)
Pan z magnitude 20.21 (0.06)
Pan y magnitude
E(B-V) 0.018

* 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.