SDSS J022226.78-004358.3

All names: SDSS J022226.79-004358.4, WD 0219-009, SDSS J022226.80-004358.4, SDSS J022226.78-004358.3, SDSS J022226.79-004358.3, Gaia DR2 2500662004205919744, Gaia EDR3 2500662008501515264, Gaia DR3 2500662008501515264, GALEX J022226.7-004357

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 02 22 26.82 (0.3) 02 22 26.79 02 22 26.81 (0.5) 02 22 26.78 (0.3) 02 22 26.79 02 22 26.18 02 22 26.78 02 22 26.78
Declination -00 43 58.48 (0.3) -00 43 58.43 -00 43 58.47 (0.4) -00 43 58.38 (0.3) -00 43 58.35 -00 43 51.96 -00 43 58.32 -00 43 58.33
Spectral type DA DA DA DA DA2.2 DA DA
Effective temperature [K] 16812.0 23190.0 (770) 22252.0 (491) 21356.0 (570) 22410.0 (518)
log(g) [cgs] 6.91 7.83 (0.1) 7.86 (0.08) 7.78 (0.09) 7.96 (0.08)
Mass [M] 0.239 0.54 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.0275
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 1.54 (0.3) 0.96 (0.5) 1.54 (0.3)
Distance [pc] 650.42 (142) 1046.35 (554) 650.41 (142)
Composition H H
Proper motion (right ascension) [mas/yr] 28.88089631 (0.4) 28.11052988 (1) 28.881 (0.4) 21.4 20.0
Proper motion (declination) [mas/yr] -6.218440694 (0.3) -6.583573947 (0.9) -6.218 (0.3) -12.8 -13.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.29 (0.02) 19.29 (0.02) 19.30 (0.04) 19.32 19.34 (0.04) 19.32 (0.04)
g magnitude 19.28 (0.01) 19.27 (0.01) 19.26 (0.02) 19.27 19.29 (0.02) 19.27 (0.02)
r magnitude 19.67 (0.02) 19.67 (0.02) 19.66 (0.02) 19.66 19.66 (0.02) 19.66 (0.02)
i magnitude 19.93 (0.02) 19.93 (0.02) 19.92 (0.03) 19.93 19.93 (0.03) 19.93 (0.03)
z magnitude 20.16 (0.1) 20.16 (0.1) 20.36 (0.1) 20.35 20.38 (0.1) 20.35 (0.1)
G magnitude 19.51 (0.05) 19.56 19.51 (0.005)
BP magnitude 19.46 (0.05) 19.28
RP magnitude 20.01 (0.09) 19.64
Pan g magnitude 19.34 (0.009)
Pan r magnitude 19.70 (0.009)
Pan i magnitude 19.99 (0.02)
Pan z magnitude 20.20 (0.05)
Pan y magnitude 20.38 (0.03)
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.