SDSS J085508.91+360925.2

All names: SDSS J085508.91+360925.20, Gaia DR3 717073828342994944, Gaia EDR3 717073828342994944, Gaia DR2 717073828342994944, SDSS J085508.91+360925.2

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 08 55 08.87 (0.2) 08 55 08.91 08 55 08.87 (0.3) 08 55 08.92 (0.2) 08 55 08.91
Declination 36 09 24.85 (0.2) 36 09 25.23 36 09 24.86 (0.2) 36 09 25.28 (0.2) 36 09 25.24
Spectral type DB:DC DC DB:DC DB
Effective temperature [K] 13012.0 11996.0 11256.0 12587.0 (368)
log(g) [cgs] 8.66 7.71 7.63 8.66 (0.3)
Mass [M] 1.007 0.43 0.396
log(Luminosity) [L]
Cooling age [Gyr] 0.2941
log(H/He) -4.962
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] 2.54 (0.3) 2.66 (0.4) 2.54 (0.3)
Distance [pc] 393.91 (51) 375.38 (60) 393.92 (51)
Composition He
Proper motion (right ascension) [mas/yr] -37.16636652 (0.3) -37.14876495 (0.6) -37.166 (0.3)
Proper motion (declination) [mas/yr] -26.93633595 (0.2) -26.91496524 (0.4) -26.936 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.39 (0.03) 19.39 (0.03) 19.33 (0.03)
g magnitude 19.28 (0.01) 19.28 (0.01) 19.26 (0.02)
r magnitude 19.50 (0.01) 19.50 (0.01) 19.52 (0.02)
i magnitude 19.62 (0.02) 19.62 (0.02) 19.60 (0.02)
z magnitude 19.81 (0.07) 19.82 (0.07) 19.76 (0.06)
G magnitude 19.37 (0.03) 19.41 19.37 (0.004)
BP magnitude 19.42 (0.03) 19.26
RP magnitude 19.41 (0.06) 19.22
Pan g magnitude 19.29 (0.009)
Pan r magnitude 19.44 (0.009)
Pan i magnitude 19.63 (0.007)
Pan z magnitude 19.83 (0.02)
Pan y magnitude 19.74 (0.06)
E(B-V) 0.023

* 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.