WD 1305+030

All names: SDSS J130805.82+024409.4, Gaia DR2 3692404515610431872, SDSS J130805.82+024409.3, USNO-A2.0 0900-07317061, WD 1305+030, Gaia DR3 3692404515610431872, Gaia EDR3 3692404515610431872, SDSS J130805.82+024409.40, GALEX J130805.8+024410

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 13 08 05.82 (0.5) 13 08 05.83 13 08 05.82 (0.8) 13 08 05.83 (0.5) 13 08 05.83 13 08 04.80 13 08 05.82
Declination 02 44 09.06 (0.3) 02 44 09.36 02 44 09.07 (0.4) 02 44 09.41 (0.3) 02 44 09.36 02 44 06.00 02 44 09.45
Spectral type DB DB DB DB3.9 DB DC
Effective temperature [K] 13087.0 12949.0 10646.0 13323.0 (433) 12808.0 (439)
log(g) [cgs] 8.29 8.08 7.77 8.42 (0.3) 8.34 (0.4)
Mass [M] 0.768 0.634 0.455 0.792 (0.2)
log(Luminosity) [L]
Cooling age [Gyr] 0.3928
log(H/He) -5.592
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] 2.93 (0.5) 2.41 (0.9) 2.93 (0.5)
Distance [pc] 341.57 (64) 414.78 (148) 341.57 (64)
Composition He
Proper motion (right ascension) [mas/yr] -5.556877768 (0.6) -7.662823691 (2) -5.557 (0.6) -4.8
Proper motion (declination) [mas/yr] -22.03792854 (0.5) -21.09865374 (0.8) -22.038 (0.5) -27.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.80 (0.3)
V magnitude
R magnitude 19.10 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.79 (0.04) 19.80 (0.04) 19.81 (0.04) 19.81 19.80 (0.04)
g magnitude 19.74 (0.01) 19.75 (0.01) 19.80 (0.02) 19.80 19.79 (0.02)
r magnitude 19.94 (0.02) 19.94 (0.02) 20.00 (0.02) 20.00 20.00 (0.02)
i magnitude 20.12 (0.04) 20.11 (0.04) 20.20 (0.04) 20.20 20.20 (0.04)
z magnitude 20.34 (0.2) 20.34 (0.2) 20.38 (0.2) 20.39 20.37 (0.2)
G magnitude 19.89 (0.06) 19.93 19.89 (0.006)
BP magnitude 19.95 (0.06) 19.94
RP magnitude 19.84 (0.1) 19.81
Pan g magnitude 19.84 (0.02)
Pan r magnitude 19.98 (0.02)
Pan i magnitude 20.17 (0.02)
Pan z magnitude 20.32 (0.06)
Pan y magnitude 20.13 (0.07)
E(B-V) 0.022

* 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.