SDSS J030502.28+374747.2

All names: SDSS J030502.27+374747.1, SDSS J030502.28+374747.20, Gaia DR3 142506121529015552, SDSS J030502.28+374747.2, Gaia EDR3 142506121529015552, Gaia DR2 142506121529015552

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023b Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 03 05 02.28 (0.4) 03 05 02.28 03 05 02.28 (0.7) 03 05 02.28 (0.4) 03 05 02.28
Declination 37 47 47.11 (0.4) 37 47 47.15 37 47 47.12 (0.6) 37 47 47.23 (0.4) 37 47 47.20
Spectral type DBH DBH: DBH DBH:
Effective temperature [K] 13421.6 (489) 17275.0 12468.0 10950.0 34592.0 (1591)
log(g) [cgs] 8.43 6.99 6.98 8.36 (0.1)
Mass [M] 0.863 0.213 0.205
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) -4.357
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] 0.47 (0.5) 1.41 (1) 0.47 (0.5)
Distance [pc] 2125.32 (2461) 709.56 (528) 2125.40 (2461)
Composition He
Proper motion (right ascension) [mas/yr] 1.276464175 (0.6) 2.51369673 (1) 1.276 (0.6)
Proper motion (declination) [mas/yr] -7.357387508 (0.5) -9.43686668 (1) -7.357 (0.5)
Variability
Magnetic yes
Bd [MG] 4.011172941 (0.03)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.93 (0.04) 19.93 (0.04) 19.95 (0.04)
g magnitude 19.82 (0.02) 19.82 (0.02) 19.85 (0.02)
r magnitude 19.94 (0.02) 19.94 (0.02) 19.97 (0.02)
i magnitude 20.02 (0.03) 20.02 (0.03) 20.04 (0.03)
z magnitude 20.36 (0.2) 20.36 (0.2) 20.36 (0.1)
G magnitude 19.85 (0.08) 19.90 19.85 (0.006)
BP magnitude 19.96 (0.08) 19.95
RP magnitude 19.87 (0.1) 20.10
Pan g magnitude 19.85 (0.02)
Pan r magnitude 19.97 (0.01)
Pan i magnitude 20.15 (0.02)
Pan z magnitude 20.34 (0.05)
Pan y magnitude 20.52 (0.2)
E(B-V) 0.116

* 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.