SDSS J220623.72+132556.4

All names: SDSS J220623.73+132556.5, GALEX J220623.7+132556, WD 2203+131, Gaia DR2 2728965629390263296, SDSS J220623.74+132556.50, SDSS J220623.74+132556.5, SDSS J220623.72+132556.4, Gaia EDR3 2728965629390263296, Gaia DR3 2728965629390263296

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 06 23.72 (0.1) 22 06 23.73 22 06 23.72 (0.2) 22 06 23.72 22 06 23.73 (0.1) 22 06 23.73 22 06 23.18 22 06 23.74
Declination 13 25 56.43 (0.1) 13 25 56.50 13 25 56.43 (0.2) 13 25 56.43 13 25 56.49 (0.1) 13 25 56.49 13 25 57.00 13 25 56.52
Spectral type DB DB DB DB DB DB DB
Effective temperature [K] 16184.0 16303.0 14442.0 16142.0 (81) 15917.0 (1048) 16856.0 (90) 16337.0 (106)
log(g) [cgs] 8.00 7.80 7.65 7.95 (0.06) 7.89 (0.09) 8.24 (0.05) 8.21 (0.06)
Mass [M] 0.589 0.487 0.41 0.531 (0.07) 0.713 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.1374
log(H/He) -6.177 <-5.32
log(C/He)
log(Ca/He) <-7.0
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] 4.28 (0.2) 3.97 (0.2) 4.28 4.28 (0.2)
Distance [pc] 233.90 (9) 251.99 (14) 223.00 233.90 233.90 (9)
Composition He
Proper motion (right ascension) [mas/yr] -11.75615995 (0.2) -12.24199376 (0.5) -11.756 (0.2) -14.7
Proper motion (declination) [mas/yr] -3.677596252 (0.2) -3.24386644 (0.3) -3.678 (0.2) -5.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.61 (0.01) 17.61 (0.01) 17.66 (0.02) 17.66 17.65 (0.02)
g magnitude 17.70 (0.006) 17.70 (0.006) 17.77 (0.01) 17.77 17.77 (0.01)
r magnitude 17.95 (0.007) 17.95 (0.007) 18.03 (0.009) 18.03 18.01 (0.01)
i magnitude 18.18 (0.01) 18.18 (0.01) 18.27 (0.02) 18.26 18.25 (0.02)
z magnitude 18.41 (0.03) 18.41 (0.04) 18.51 (0.04) 18.50 18.50 (0.04)
G magnitude 17.91 (0.008) 17.93 17.91 17.91 (0.004)
BP magnitude 17.78 (0.008) 17.77
RP magnitude 17.92 (0.02) 17.92
Pan g magnitude 17.76 (0.005)
Pan r magnitude 18.03 (0.01)
Pan i magnitude 18.27 (0.006)
Pan z magnitude 18.51 (0.01)
Pan y magnitude 18.60 (0.04)
E(B-V) 0.029

* 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.