WD 0406-046

All names: Gaia DR3 3203570579433449472, SDSS J040854.60-043354.7, Gaia EDR3 3203570579433449472, SDSS J040854.60-043354.6, GALEX J040854.5-043354, WD 0406-046, Gaia DR2 3203570579433449472, USNO-B1.0 0854-00038969, SDSS J040854.60-043354.70

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Eisenstein et al. 2006 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 04 08 54.60 (0.3) 04 08 54.60 04 08 54.60 (0.3) 04 08 54.60 04 08 54.60 (0.3) 04 08 53.98 04 08 54.60
Declination -04 33 54.82 (0.2) -04 33 54.63 -04 33 54.82 (0.3) -04 33 54.64 -04 33 54.65 (0.2) -04 33 50.04 -04 33 54.66
Spectral type DB DB A: DB A: DBHA DB1.3 DBHA: DA
Effective temperature [K] 38897.0 (2794) 39954.0 36873.0 16004.0 34900.0 (1700) 39592.0 (1990)
log(g) [cgs] 8.12 (0.3) 7.87 7.42 6.73 7.61 (0.2) 7.95 (0.2)
Mass [M] 0.7 (0.1) 0.566 0.394 0.196
log(Luminosity) [L] -0.52 (0.2)
Cooling age [Gyr] 0.0044 (0.0009)
log(H/He) -2
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] 1.41 (0.3) 0.83 (0.5) 1.41 (0.3)
Distance [pc] 710.30 (168) 1211.57 (764) 710.28 (168)
Composition He He
Proper motion (right ascension) [mas/yr] 0.207886544 (0.3) -0.96850147 (0.7) 0.208 (0.3)
Proper motion (declination) [mas/yr] -10.64010787 (0.3) -11.46873819 (0.6) -10.64 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.07 (0.02) 19.04 (0.03) 19.07 (0.02) 19.05 19.05 (0.03)
g magnitude 19.29 (0.01) 19.31 (0.01) 19.29 (0.01) 19.31 19.31 (0.01)
r magnitude 19.67 (0.02) 19.69 (0.03) 19.67 (0.02) 19.68 19.69 (0.03)
i magnitude 19.93 (0.04) 19.96 (0.04) 19.93 (0.04) 19.97 19.96 (0.04)
z magnitude 20.13 (0.2) 20.14 (0.1) 20.13 (0.2) 20.14 20.13 (0.2)
G magnitude 19.47 (0.03) 19.53 19.47 (0.004)
BP magnitude 19.45 (0.03) 19.32
RP magnitude 19.57 (0.06) 19.60
Pan g magnitude 19.41 (0.02)
Pan r magnitude 19.69 (0.02)
Pan i magnitude 19.99 (0.01)
Pan z magnitude 20.19 (0.03)
Pan y magnitude 20.24 (0.2)
E(B-V) 0.063

* 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.