SDSS J075224.32+150352.4

All names: SDSS J075224.32+150352.3, Gaia DR2 666567761722921344, SDSS J075224.32+150352.34, SDSS J075224.32+150352.4, GALEX J075224.3+150352, Gaia DR3 666567761722921344, Gaia EDR3 666567761722921344

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 07 52 24.32 (0.1) 07 52 24.32 07 52 24.32 (0.2) 07 52 24.32 07 52 24.32 (0.1)
Declination 15 03 52.25 (0.07) 15 03 52.49 15 03 52.26 (0.1) 15 03 52.25 15 03 52.58 (0.07)
Spectral type DB DB DB DB DB
Effective temperature [K] 13562.0 12219.0 12208.0 13966.0 (46) 14086.0 (77) 12606.0 (414)
log(g) [cgs] 7.91 7.58 7.58 8.00 (0) 8.24 (0.06) 7.64 (0.05)
Mass [M] 0.535 0.375 0.377 0.748 (0.04) 0.402 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.2219
log(H/He) -6.373 <-5.9
log(C/He)
log(Ca/He) <-8.89
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] 4.53 (0.1) 4.53 (0.2) 4.53 4.53 (0.1)
Distance [pc] 220.74 (6) 220.53 (9) 192.00 220.74 220.74 (6)
Composition He
Proper motion (right ascension) [mas/yr] -5.062534243 (0.1) -5.308933976 (0.3) -5.063 (0.1)
Proper motion (declination) [mas/yr] -20.50340131 (0.07) -20.55624904 (0.2) -20.503 (0.07)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.84 (0.01) 17.84 (0.01) 17.84 (0.01)
g magnitude 17.81 (0.005) 17.81 (0.01) 17.81 (0.005)
r magnitude 18.01 (0.007) 18.01 (0.01) 18.01 (0.007)
i magnitude 18.21 (0.009) 18.21 (0.01) 18.21 (0.009)
z magnitude 18.44 (0.03) 18.44 (0.03) 18.44 (0.03)
G magnitude 17.89 (0.01) 17.92 17.89 17.89 (0.003)
BP magnitude 17.90 (0.01) 17.84
RP magnitude 17.94 (0.01) 17.90
Pan g magnitude 17.85 (0.004)
Pan r magnitude 18.03 (0.005)
Pan i magnitude 18.22 (0.004)
Pan z magnitude 18.44 (0.01)
Pan y magnitude 18.57 (0.02)
E(B-V) 0.010

* 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.