SDSS J123032.95+044607.9

All names: Gaia EDR3 3707810975618404992, SDSS J123032.95+044607.8, GALEX J123032.9+044608, Gaia DR3 3707810975618404992, SDSS J123032.95+044608.0, SDSS J123032.96+044608.00, SDSS J123032.95+044607.9, SDSS J123032.96+044608.0, Gaia DR2 3707810975618404992, WD 1228+050

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 12 30 32.96 (0.3) 12 30 32.95 12 30 32.96 (0.3) 12 30 32.95 (0.3) 12 30 32.95 12 30 33.02 12 30 32.96
Declination 04 46 07.75 (0.2) 04 46 08.02 04 46 07.76 (0.2) 04 46 08.06 (0.2) 04 46 07.99 04 46 01.92 04 46 08.04
Spectral type DBA DBA DBA DBA DBA DB+MS
Effective temperature [K] 16213.0 15764.0 14990.0 17010.0 (241) 16728.0 (266)
log(g) [cgs] 8.00 7.75 7.68 8.09 (0.1) 8.13 (0.1)
Mass [M] 0.59 0.459 0.427
log(Luminosity) [L]
Cooling age [Gyr] 0.1257
log(H/He) -4.225
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] 2.67 (0.3) 2.27 (0.4) 2.67 (0.3)
Distance [pc] 374.16 (43) 441.21 (74) 374.15 (43)
Composition He
Proper motion (right ascension) [mas/yr] 4.458729088 (0.4) 4.128804611 (0.8) 4.459 (0.4) -0.2
Proper motion (declination) [mas/yr] -19.42787339 (0.2) -19.48871813 (0.4) -19.428 (0.2) -17.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.85 (0.02) 18.85 (0.02) 18.78 (0.03) 18.78 18.80 (0.03)
g magnitude 18.89 (0.01) 18.89 (0.01) 18.87 (0.02) 18.87 18.89 (0.02)
r magnitude 19.15 (0.01) 19.15 (0.01) 19.15 (0.02) 19.15 19.16 (0.02)
i magnitude 19.46 (0.02) 19.46 (0.02) 19.45 (0.03) 19.45 19.47 (0.03)
z magnitude 19.73 (0.1) 19.73 (0.1) 19.69 (0.1) 19.69 19.71 (0.1)
G magnitude 19.03 (0.02) 19.07 19.03 (0.003)
BP magnitude 18.96 (0.02) 18.93
RP magnitude 19.14 (0.04) 19.08
Pan g magnitude 18.94 (0.02)
Pan r magnitude 19.21 (0.01)
Pan i magnitude 19.45 (0.009)
Pan z magnitude 19.69 (0.01)
Pan y magnitude 19.85 (0.05)
E(B-V) 0.024

* 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.