SDSS J225809.37-082920.1

All names: Gaia DR2 2607019447587739008, J2258-0829, GALEX J225809.3-082919, Gaia DR3 2607019447587739008, Gaia EDR3 2607019447587739008, SDSS J225809.37-082920.10, SDSS J225809.37-082920.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Coutu et al. 2019 Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 58 09.39 (0.5) 22 58 09.38 22 58 09.38 22 58 09.39 (0.6) 22 58 09.38 (0.5) 22 58 09.37
Declination -08 29 20.24 (0.5) -08 29 20.16 -08 29 20.15 -08 29 20.24 (0.6) -08 29 20.13 (0.5) -08 29 20.12
Spectral type DBZA DBAZH DBAZH: DB
Effective temperature [K] 14766.0 14581.0 14262.0 (1391) 14392.0 (333)
log(g) [cgs] 8.19 8.57 8.54 8.29 (0.2)
Mass [M] 0.703 0.952 0.9326
log(Luminosity) [L]
Cooling age [Gyr] 0.5590
log(H/He) -5.204 -5.2645 (0.7)
log(C/He)
log(Ca/He) -8.9897 (0.9)
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] 3.07 (0.6) 2.82 2.82 (0.6) 3.07 (0.6)
Distance [pc] 325.49 (59) 354.78 (79) 354.78 (79) 325.49 (59)
Composition He
Proper motion (right ascension) [mas/yr] 11.7607018 (0.5) 12.98550372 (1) 11.761 (0.5)
Proper motion (declination) [mas/yr] -7.233211466 (0.6) -5.875526663 (1) -7.233 (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 19.96 (0.05) 19.96 (0.05) 19.96 (0.05)
g magnitude 19.93 (0.02) 19.93 (0.02) 19.94 (0.03)
r magnitude 20.21 (0.03) 20.21 (0.03) 20.23 (0.03)
i magnitude 20.46 (0.05) 20.46 (0.06) 20.45 (0.05)
z magnitude 20.83 (0.3) 20.84 (0.3) 20.86 (0.3)
G magnitude 20.06 (0.06) 20.11 20.06 (0.007)
BP magnitude 20.14 (0.06) 19.97
RP magnitude 20.34 (0.1) 20.35
Pan g magnitude 19.99 (0.02)
Pan r magnitude 20.19 (0.01)
Pan i magnitude 20.38 (0.02)
Pan z magnitude 20.51 (0.03)
Pan y magnitude 20.04 (0.2)
E(B-V) 0.039

* 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.