SDSS J095515.28+351521.9

All names: SDSS J095515.28+351521.90, SDSS J095515.28+351521.9, Gaia DR2 795435124404742656, Gaia DR3 795435128702303232, GALEX J095515.3+351521, Gaia EDR3 795435128702303232

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 09 55 15.27 (0.6) 09 55 15.27 09 55 15.27 (1) 09 55 15.27 (0.6) 09 55 15.28
Declination 35 15 21.85 (0.5) 35 15 21.80 35 15 21.85 (1) 35 15 21.86 (0.5) 35 15 21.93
Spectral type DB DB DB DB
Effective temperature [K] 24764.0 19145.0 18887.0 22470.0 (1753)
log(g) [cgs] 7.84 8.04 8.01 7.87 (0.2)
Mass [M] 0.521 0.62 0.601 0.53 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.0895
log(H/He) -3.657
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] 0.88 (0.6) 1.37 (1) 0.88 (0.6)
Distance [pc] 1140.61 (837) 727.46 (567) 1140.64 (837)
Composition He
Proper motion (right ascension) [mas/yr] -3.255604665 (0.7) -2.100248167 (2) -3.256 (0.7)
Proper motion (declination) [mas/yr] -0.490278116 (0.6) -1.209664686 (2) -0.49 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.82 (0.03) 19.81 (0.04) 19.81 (0.04)
g magnitude 19.94 (0.02) 19.90 (0.02) 19.90 (0.02)
r magnitude 20.28 (0.02) 20.27 (0.03) 20.27 (0.03)
i magnitude 20.60 (0.04) 20.54 (0.05) 20.54 (0.05)
z magnitude 20.83 (0.1) 20.67 (0.2) 20.67 (0.2)
G magnitude 20.13 (0.04) 20.17 20.13 (0.006)
BP magnitude 19.98 (0.04) 19.76
RP magnitude 20.10 (0.1) 20.08
Pan g magnitude 19.98 (0.01)
Pan r magnitude 20.31 (0.04)
Pan i magnitude 20.59 (0.02)
Pan z magnitude 20.78 (0.07)
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.