PB 7185

All names: SDSS J224600.40-080424.2, PB 7185, SDSS J224600.41-080424.1, SDSS J224600.40-080424.1, Gaia DR3 2610984836273954432, Gaia DR2 2610984836273954432, GALEX J224600.3-080423, Gaia EDR3 2610984836273954432, WD 2243-083, SDSS J224600.40-080424.20, SDSS J224600.39-080424.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 46 00.44 (0.2) 22 46 00.42 22 46 00.43 (0.3) 22 46 00.40 (0.2) 22 46 00.40 22 45 59.88 22 46 00.40
Declination -08 04 24.17 (0.2) -08 04 24.12 -08 04 24.17 (0.3) -08 04 24.19 (0.2) -08 04 24.14 -08 04 17.40 -08 04 24.16
Spectral type DB_A: DB DB_A: DB DBA: DB
Effective temperature [K] 15864.0 14741.0 13656.0 15902.0 (89) 16508.0 (141) 16061.0 (159)
log(g) [cgs] 8.31 7.95 7.88 8.00 (0) 8.34 (0.07) 8.36 (0.09)
Mass [M] 0.782 0.562 0.521
log(Luminosity) [L]
Cooling age [Gyr] 0.2224
log(H/He) -5.105 <-5.07
log(C/He)
log(Ca/He) <-6.69
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] 3.21 (0.2) 3.10 (0.4) 3.21 (0.2)
Distance [pc] 311.26 (23) 322.21 (37) 335.00 311.25 (23)
Composition He
Proper motion (right ascension) [mas/yr] 31.55570969 (0.2) 30.42681462 (0.6) 31.556 (0.2) 33.6
Proper motion (declination) [mas/yr] 1.466002407 (0.2) 0.862938899 (0.6) 1.466 (0.2) 2.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.50
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.72 (0.02) 18.72 (0.02) 18.69 (0.02) 18.69 18.71 (0.02)
g magnitude 18.75 (0.009) 18.75 (0.009) 18.77 (0.02) 18.77 18.77 (0.02)
r magnitude 19.02 (0.01) 19.02 (0.01) 19.02 (0.02) 19.02 19.01 (0.02)
i magnitude 19.25 (0.02) 19.25 (0.02) 19.25 (0.02) 19.26 19.25 (0.02)
z magnitude 19.42 (0.07) 19.42 (0.07) 19.39 (0.07) 19.40 19.39 (0.07)
G magnitude 18.86 (0.03) 18.90 18.86 (0.004)
BP magnitude 18.87 (0.03) 18.78
RP magnitude 18.97 (0.07) 18.92
Pan g magnitude 18.77 (0.008)
Pan r magnitude 19.01 (0.007)
Pan i magnitude 19.26 (0.007)
Pan z magnitude 19.45 (0.02)
Pan y magnitude 19.54 (0.06)
E(B-V) 0.050

* 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.