WD 0305-071

All names: GALEX J030800.3-065659, SDSS J030800.40-065700.0, J0308-0657, Gaia EDR3 5179967194494422912, SDSS J030800.40-065659.9, WD 0305-071, Gaia DR2 5179967194494422912, Gaia DR3 5179967194494422912

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2007 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 03 08 00.40 (0.4) 03 08 00.40 03 08 00.40 03 08 00.40 (0.5) 03 08 00.40 (0.4) 03 08 00.40 03 07 59.74 03 08 00.40
Declination -06 57 00.40 (0.5) -06 57 00.08 -06 57 00.08 -06 57 00.39 (0.6) -06 57 00.02 (0.5) -06 57 00.08 -06 56 56.40 -06 56 59.86
Spectral type DZ DZ DZ DZ DZ DZ DZ
Effective temperature [K] 10049.0 (487) 8520.0 (400) 10529.0 (354) 10624.0 (394)
log(g) [cgs] 8.30 8.00 8.12 (0.6) 8.55 (0.8)
Mass [M] 0.7712
log(Luminosity) [L]
Cooling age [Gyr] 0.9520
log(H/He) <-5.7225 <-3.0
log(C/He)
log(Ca/He) -8.0773 (0.5) -8.81 (0.2)
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] 3.40 (0.5) 3.46 3.46 (0.6) 3.40 (0.5)
Distance [pc] 294.19 (44) 289.03 (52) 289.03 (52) 285.00 294.20 (44)
Composition He He
Proper motion (right ascension) [mas/yr] -1.625470374 (0.6) 2.360369678 (1) -1.625 (0.6) 9.3
Proper motion (declination) [mas/yr] -23.51827627 (0.7) -19.98352836 (2) -23.518 (0.7) -28.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.26 (0.05) 20.27 (0.05) 20.26 (0.05) 20.29 20.26 (0.05)
g magnitude 20.10 (0.02) 20.10 (0.02) 20.12 (0.03) 20.13 20.13 (0.03)
r magnitude 20.10 (0.03) 20.10 (0.03) 20.14 (0.03) 20.14 20.14 (0.03)
i magnitude 20.17 (0.04) 20.17 (0.04) 20.20 (0.05) 20.19 20.20 (0.05)
z magnitude 20.20 (0.1) 20.20 (0.1) 20.26 (0.1) 20.25 20.24 (0.1)
G magnitude 20.03 (0.07) 20.09 20.03 (0.007)
BP magnitude 20.12 (0.07) 20.22
RP magnitude 19.91 (0.1) 19.87
Pan g magnitude 20.05 (0.03)
Pan r magnitude 20.06 (0.02)
Pan i magnitude 20.20 (0.03)
Pan z magnitude 20.33 (0.03)
Pan y magnitude 20.16 (0.04)
E(B-V) 0.025

* 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.