WD 2235-014

All names: Gaia EDR3 2652983573409260800, SDSS J223815.97-011336.91, SDSS J223815.97-011336.9, J2238-0113, Gaia DR3 2652983573409260800, USNO-B1.0 0887-00612761, WD 2235-014, Gaia DR2 2652983573409260800

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 SDSS DR12 Blouin 2020 Coutu et al. 2019 MWDD H Gaia DR2 Hollands et al. 2017 Stilism Kepler et al. 2015 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 22 38 15.94 (1) 22 38 15.97 22 38 15.97 22 38 15.99 22 38 15.94 (2) 22 38 15.98 (1) 22 38 15.34
Declination -01 13 37.45 (0.9) -01 13 36.93 -01 13 36.93 -01 13 36.83 -01 13 37.43 (1) -01 13 36.80 (0.9) -01 13 28.92
Spectral type DZ DZ DZ DZ DZ DZ DA6.7
Effective temperature [K] 6228.0 (184) 6222.0 (198) 7239.0 6800.0 (260) 8851.0 (138)
log(g) [cgs] 8.00 7.53 7.98 8.00 (0)
Mass [M☉] 0.3336 0.581
log(Luminosity) [L☉]
Cooling age [Gyr] 1.2100 1.3610 2.1000
log(H/He) <-3.4583
log(C/He)
log(Ca/He) -9.4 (0.2) -9.5351 (0.2) -8.89 -7.502999999999999 (0.1)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He) -7.6 (0.2) -7.73
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) -8.0 (0.2) -7.78
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 1.42 (2) 3.44 3.44 (1) 1.42 (2)
Distance [pc] 704.80 (761) 290.81 (121) 290.81 (121) 258.00 (35) 704.82 (761)
Composition He He He He He
Proper motion (right ascension) [mas/yr] -39.51433111 (1) -43.23254413 (3) -39.514 (1)
Proper motion (declination) [mas/yr] -41.04938102 (1) -38.94942576 (2) -41.049 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.50
V magnitude
R magnitude 19.70
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 22.37 (0.3) 22.38 (0.3) 22.38 (0.3) 22.38 (0.3) 22.38 (0.3) 22.38 (0.3) 20.76
g magnitude 20.79 (0.03) 20.79 (0.03) 20.78 (0.04) 20.78 (0.04) 20.78 (0.04) 20.78 (0.03) 20.76
r magnitude 20.59 (0.03) 20.60 (0.03) 20.59 (0.04) 20.59 (0.04) 20.59 (0.04) 20.59 (0.03)
i magnitude 20.61 (0.05) 20.61 (0.05) 20.62 (0.05) 20.62 (0.05) 20.62 (0.05) 20.61 (0.05)
z magnitude 20.70 (0.2) 20.70 (0.2) 20.68 (0.2) 20.68 (0.2) 20.68 (0.2) 20.68 (0.2)
G magnitude 20.60 (0.2) 20.67 20.60 (0.01)
BP magnitude 20.99 (0.2) 20.39
RP magnitude 20.42 (0.1) 20.19
Pan g magnitude 20.70 (0.03)
Pan r magnitude 20.58 (0.01)
Pan i magnitude 20.69 (0.03)
Pan z magnitude 20.68 (0.09)
Pan y magnitude
E(B-V) 0.055

* 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.