SDSS J145030.61-020301.8

All names: Gaia DR3 6340353455341128704, WD 1447-018, 2QZ J145030.6-020302, Gaia DR2 6340353455341128704, Gaia EDR3 6340353455341128704, GALEX J145030.6-020301, SDSS J145030.62-020301.80, SDSS J145030.62-020301.8, SDSS J145030.61-020301.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 50 30.62 (0.4) 14 50 30.62 14 50 30.62 (0.4) 14 50 30.62 (0.4) 14 50 30.62 14 50 30.31 14 50 30.62
Declination -02 03 01.85 (0.3) -02 03 01.88 -02 03 01.85 (0.4) -02 03 01.92 (0.3) -02 03 01.86 -02 02 57.12 -02 03 01.84
Spectral type DB DB DB DB DB DB
Effective temperature [K] 20127.0 21510.0 14798.0 19550.0 (660) 21035.0 (1405)
log(g) [cgs] 8.13 8.49 8.13 8.13 (0.1) 7.95 (0.1)
Mass [M] 0.678 0.91 0.667 0.569 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.2598
log(H/He) -4.773
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] 2.42 (0.4) 2.74 (0.5) 2.42 (0.4)
Distance [pc] 413.62 (75) 365.49 (70) 413.62 (75)
Composition He
Proper motion (right ascension) [mas/yr] 2.944601654 (0.6) 2.775980865 (0.9) 2.945 (0.6) -0.6
Proper motion (declination) [mas/yr] 4.369531842 (0.5) 5.090036377 (0.8) 4.37 (0.5) 0.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.04 (0.02) 19.04 (0.02) 19.04 (0.03) 19.04 19.05 (0.03)
g magnitude 19.16 (0.01) 19.16 (0.01) 19.17 (0.02) 19.17 19.16 (0.02)
r magnitude 19.44 (0.01) 19.44 (0.01) 19.43 (0.02) 19.43 19.43 (0.02)
i magnitude 19.74 (0.02) 19.73 (0.02) 19.72 (0.02) 19.72 19.72 (0.02)
z magnitude 19.90 (0.1) 19.90 (0.1) 19.90 (0.1) 19.90 19.89 (0.1)
G magnitude 19.30 (0.05) 19.35 19.30 (0.005)
BP magnitude 19.23 (0.05) 19.17
RP magnitude 19.33 (0.08) 19.46
Pan g magnitude 19.19 (0.01)
Pan r magnitude 19.47 (0.02)
Pan i magnitude 19.73 (0.009)
Pan z magnitude 19.99 (0.03)
Pan y magnitude 19.98 (0.04)
E(B-V) 0.052

* 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.