SDSS J080211.41+301256.8

All names: GALEX J080211.4+301256, Gaia EDR3 877285278237322496, SDSS J080211.42+301256.7, Gaia DR3 877285278237322496, SDSS J080211.42+301256.8, SDSS J080211.41+301256.8, Gaia DR2 877285278237322496, J0802+3012, WD 0759+303

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 MWDD H 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 08 02 11.40 (0.7) 08 02 11.42 08 02 11.43 08 02 11.41 (0.9) 08 02 11.43 (0.7) 08 02 11.42 08 02 11.47 08 02 11.42
Declination 30 12 56.09 (0.4) 30 12 56.83 30 12 56.91 30 12 56.11 (0.6) 30 12 56.90 (0.4) 30 12 56.79 30 12 54.72 30 12 56.78
Spectral type DZ DZ DZ DZ+M DZ DZ DZM: DZ
Effective temperature [K] 10471.0 (544) 8982.0 9400.0 (470) 10760.0 (423) 10728.0 (411)
log(g) [cgs] 8.14 7.82 8.00 8.14 (0.5) 8.98 (0.7)
Mass [M] 0.6691 0.495
log(Luminosity) [L]
Cooling age [Gyr] 0.6850 0.6323
log(H/He) <-5.9101 <-4.0
log(C/He)
log(Ca/He) -8.1411 (0.4) -9.17 (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] 2.01 (0.7) 2.38 2.38 (1) 2.01 (0.7)
Distance [pc] 498.64 (178) 419.81 (231) 419.81 (231) 385.00 498.65 (178)
Composition He He He
Proper motion (right ascension) [mas/yr] -16.77579848 (0.8) -18.51942913 (2) -16.776 (0.8)
Proper motion (declination) [mas/yr] -50.90721487 (0.5) -51.40686303 (1) -50.907 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.51 (0.05) 20.50 (0.06) 20.56 (0.05) 20.56 20.54 (0.05)
g magnitude 20.41 (0.02) 20.41 (0.02) 20.43 (0.03) 20.43 20.43 (0.02)
r magnitude 20.50 (0.03) 20.49 (0.03) 20.55 (0.03) 20.55 20.56 (0.03)
i magnitude 20.60 (0.04) 20.60 (0.04) 20.65 (0.04) 20.65 20.66 (0.04)
z magnitude 20.63 (0.1) 20.61 (0.1) 20.59 (0.1) 20.59 20.60 (0.1)
G magnitude 20.45 (0.09) 20.53 20.45 (0.007)
BP magnitude 20.42 (0.09) 20.42
RP magnitude 20.25 (0.1) 20.64
Pan g magnitude 20.44 (0.01)
Pan r magnitude 20.55 (0.02)
Pan i magnitude 20.68 (0.02)
Pan z magnitude 20.74 (0.08)
Pan y magnitude
E(B-V) 0.034

* 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.