SDSS J155014.63+334802.0

All names: Gaia DR3 1370204862184720512, SDSS J155014.63+334802.0, SDSS J155014.63+334802.00, GALEX J155014.6+334802, Gaia EDR3 1370204862184720512, Gaia DR2 1370204862184720512

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 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 15 50 14.63 (0.2) 15 50 14.63 15 50 14.63 (0.3) 15 50 14.63 (0.2) 15 50 14.63
Declination 33 48 02.06 (0.3) 33 48 02.01 33 48 02.06 (0.4) 33 48 01.98 (0.3) 33 48 02.04
Spectral type DB DB DB DB
Effective temperature [K] 17075.0 16792.0 13686.0 18103.0 (735)
log(g) [cgs] 7.75 8.38 8.07 8.07 (0.2)
Mass [M] 0.461 0.829 0.627 0.63 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.2936
log(H/He) <-5.624
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] 2.10 (0.3) 2.17 (0.5) 2.10 (0.3)
Distance [pc] 477.10 (79) 459.98 (100) 477.10 (79)
Composition He
Proper motion (right ascension) [mas/yr] -0.551618683 (0.3) -1.195902805 (0.7) -0.552 (0.3)
Proper motion (declination) [mas/yr] 5.311658542 (0.5) 5.23100451 (0.9) 5.312 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.76 (0.03) 19.76 (0.03) 19.77 (0.04)
g magnitude 19.82 (0.01) 19.82 (0.01) 19.83 (0.02)
r magnitude 20.17 (0.02) 20.17 (0.02) 20.17 (0.02)
i magnitude 20.38 (0.04) 20.38 (0.04) 20.37 (0.04)
z magnitude 20.51 (0.2) 20.50 (0.2) 20.50 (0.2)
G magnitude 19.98 (0.04) 20.05 19.98 (0.005)
BP magnitude 19.87 (0.04) 19.74
RP magnitude 19.92 (0.09) 20.00
Pan g magnitude 19.88 (0.008)
Pan r magnitude 20.13 (0.02)
Pan i magnitude 20.40 (0.02)
Pan z magnitude 20.71 (0.1)
Pan y magnitude
E(B-V) 0.024

* 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.