2SLAQ J030834.28+002827.2

All names: WD 0306+002, 2SLAQ J030834.28+002827.2, GALEX J030834.2+002827, SDSS J030834.30+002827.3, Gaia DR2 3266512088205852544, Gaia EDR3 3266512088205852544, SDSS J030834.28+002827.1, SDSS J030834.28+002827.2, SDSS J030834.29+002827.3, WIRED J030834.29+002827.2, SDSS J030834.30+002827.2, Gaia DR3 3266512088205852544

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 03 08 34.26 (0.3) 03 08 34.29 03 08 34.26 (0.4) 03 08 34.30 (0.3) 03 08 34.29 03 08 34.08 03 08 34.30
Declination 00 28 26.68 (0.3) 00 28 27.14 00 28 26.69 (0.4) 00 28 27.29 (0.3) 00 28 27.21 00 28 25.68 00 28 27.28
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 8724.0 10265.0 (107) 10204.0 (122)
log(g) [cgs] 7.86 8.46 (0.1) 8.46 (0.1)
Mass [M] 0.514 0.881 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.7107
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 3.64 (0.4) 4.37 (0.6) 3.64 (0.4)
Distance [pc] 274.37 (32) 228.83 (30) 274.37 (32)
Composition H
Proper motion (right ascension) [mas/yr] -37.90562646 (0.3) -37.13654414 (0.7) -37.906 (0.3) -40.4
Proper motion (declination) [mas/yr] -38.15921854 (0.3) -37.35420703 (0.7) -38.159 (0.3) -30.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.65 (0.06)
H magnitude 18.22 (0.1)
K magnitude
u magnitude 19.69 (0.03) 19.69 (0.03) 19.65 (0.03) 19.65 19.69 (0.03)
g magnitude 19.25 (0.01) 19.25 (0.01) 19.25 (0.02) 19.25 19.28 (0.02)
r magnitude 19.25 (0.01) 19.25 (0.01) 19.27 (0.02) 19.28 19.28 (0.02)
i magnitude 19.30 (0.02) 19.30 (0.02) 19.31 (0.02) 19.31 19.32 (0.02)
z magnitude 19.38 (0.05) 19.38 (0.05) 19.41 (0.06) 19.41 19.41 (0.05)
G magnitude 19.27 (0.04) 19.31 19.27 (0.005)
BP magnitude 19.32 (0.04) 19.36
RP magnitude 19.08 (0.06) 19.04
Pan g magnitude 19.28 (0.009)
Pan r magnitude 19.30 (0.02)
Pan i magnitude 19.40 (0.01)
Pan z magnitude 19.49 (0.005)
Pan y magnitude 19.50 (0.04)
E(B-V) 0.031

* 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.