SDSS J073849.46+485126.6

All names: Gaia DR2 981877219478951808, Gaia DR3 981877219478951808, Gaia EDR3 981877219478951808, SDSS J073849.46+485126.64, GALEX J073849.4+485127, SDSS J073849.46+485126.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 SDSS DR10 Bedard et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Reindl et al. 2014 Simbad Vincent et al. 2023
Right ascension 07 38 49.46 (0.2) 07 38 49.46 07 38 49.46 07 38 49.46 (0.2) 07 38 49.47 (0.2)
Declination 48 51 26.60 (0.1) 48 51 26.64 48 51 26.64 48 51 26.60 (0.2) 48 51 26.65 (0.1)
Spectral type DO DO DO DO DO DO
Effective temperature [K] 60320.0 (1848) 17877.0 20210.0 60000.0 (7500) 60000.0
log(g) [cgs] 8.21 (0.2) 6.64 6.79 8.00 (0.5) 8.00 (0.5)
Mass [M] 0.77 (0.1) 0.215 0.222 0.66 (0.2) 0.66
log(Luminosity) [L] 0.20 (0.1)
Cooling age [Gyr] 0.0012 (0.0002)
log(H/He)
log(C/He) <0.01
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] 0.92 (0.2) 0.93 (0.3) 0.92 (0.2)
Distance [pc] 1086.47 (245) 1071.55 (398) 1086.48 (245)
Composition He
Proper motion (right ascension) [mas/yr] -6.465382246 (0.2) -6.546507328 (0.5) -6.465 (0.2)
Proper motion (declination) [mas/yr] -3.005672785 (0.2) -2.829537425 (0.3) -3.006 (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 18.29 (0.01) 18.29 (0.01) 18.27 (0.03) 18.29 (0.01)
g magnitude 18.70 (0.008) 18.70 (0.008) 18.72 (0.02) 18.70 18.70 (0.008)
r magnitude 19.09 (0.01) 19.09 (0.01) 19.11 (0.02) 19.09 (0.01)
i magnitude 19.42 (0.02) 19.42 (0.02) 19.42 (0.03) 19.42 (0.02)
z magnitude 19.64 (0.08) 19.64 (0.08) 19.64 (0.08) 19.64 (0.08)
G magnitude 18.88 (0.02) 18.93 18.88 (0.004)
BP magnitude 18.81 (0.02) 18.67
RP magnitude 19.20 (0.05) 19.08
Pan g magnitude 18.74 (0.01)
Pan r magnitude 19.09 (0.006)
Pan i magnitude 19.40 (0.01)
Pan z magnitude 19.69 (0.03)
Pan y magnitude 19.75 (0.05)
E(B-V) 0.089

* 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.