SDSS J093122.86+362209.4

All names: Gaia DR3 798918480321407488, 1RXS J093119.2+362223, SDSS J093122.86+362209.40, SDSS J093122.86+362209.4, GALEX J093122.9+362209, Gaia EDR3 798918480321407488, WD 0928+365, Gaia DR2 798918480321407488

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 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 31 22.85 (0.5) 09 31 22.86 09 31 22.85 (0.5) 09 31 22.87 (0.5) 09 31 22.86 09 31 22.85 09 31 22.86
Declination 36 22 09.40 (0.4) 36 22 09.42 36 22 09.40 (0.6) 36 22 09.50 (0.4) 36 22 09.43 36 22 03.36 36 22 09.42
Spectral type DB DB DB DB DB DB
Effective temperature [K] 20675.0 20334.0 16921.0 20496.0 (1050) 21649.0 (1348)
log(g) [cgs] 7.82 7.83 7.56 7.97 (0.2) 7.97 (0.2)
Mass [M] 0.505 0.508 0.382 0.581 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.0722
log(H/He) <-4.731
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] 0.74 (0.6) 1.13 (0.9) 0.74 (0.6)
Distance [pc] 1360.43 (1021) 887.59 (710) 1360.36 (1020)
Composition He
Proper motion (right ascension) [mas/yr] -13.6615223 (0.5) -13.31649653 (1) -13.662 (0.5)
Proper motion (declination) [mas/yr] -6.392595265 (0.4) -6.578155287 (1) -6.393 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.87 (0.04) 19.87 (0.04) 19.87 (0.04) 19.86 19.86 (0.04)
g magnitude 20.00 (0.02) 20.00 (0.02) 20.01 (0.03) 20.00 20.00 (0.03)
r magnitude 20.34 (0.03) 20.34 (0.03) 20.35 (0.03) 20.34 20.35 (0.03)
i magnitude 20.59 (0.05) 20.59 (0.05) 20.58 (0.05) 20.57 20.60 (0.05)
z magnitude 20.79 (0.2) 20.79 (0.2) 20.81 (0.2) 20.80 20.80 (0.2)
G magnitude 20.16 (0.05) 20.25 20.16 (0.005)
BP magnitude 20.12 (0.05) 20.07
RP magnitude 20.16 (0.09) 20.18
Pan g magnitude 20.03 (0.009)
Pan r magnitude 20.33 (0.008)
Pan i magnitude 20.63 (0.02)
Pan z magnitude 20.95 (0.04)
Pan y magnitude
E(B-V) 0.018

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.