SDSS J102220.69+272539.8

All names: SDSS J102220.70+272539.8, Gaia DR3 728800188571156992, GALEX J102220.7+272541, SDSS J102220.69+272539.8, Gaia DR2 728800188571156992, Gaia EDR3 728800188571156992, WD 1019+276

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 22 20.68 (0.5) 10 22 20.70 10 22 20.68 (0.8) 10 22 20.69 10 22 20.70 (0.5) 10 22 20.35 10 22 20.70
Declination 27 25 39.80 (0.4) 27 25 39.83 27 25 39.80 (0.8) 27 25 39.79 27 25 39.84 (0.4) 27 25 32.16 27 25 39.85
Spectral type DAH DA DA DAH DAH DAH4.6 DAH DAH
Effective temperature [K] 11580.6 (606) 10982.0 11000.0 14780.0 (667)
log(g) [cgs] 8.70 (0.2) 8.65 8.00 (0) 9.12 (0.2)
Mass [M] 1.0452883196066958 (0.3) 1.016
log(Luminosity) [L]
Cooling age [Gyr] 1.5320
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] 3.47 (0.5) 3.79 (1) 3.47 (0.5)
Distance [pc] 287.89 (45) 263.72 (76) 287.89 (45)
Composition H H
Proper motion (right ascension) [mas/yr] -17.59648789 (0.5) -17.43888069 (2) -17.596 (0.5)
Proper motion (declination) [mas/yr] -2.613899421 (0.4) -2.222645758 (1) -2.614 (0.4)
Variability
Magnetic yes yes yes yes
Bd [MG] 5.354984414096634 4.91 (0.3) 4.91 (0.3)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.47 (0.05) 20.47 (0.05) 20.47 20.47 (0.05)
g magnitude 20.06 (0.02) 20.06 (0.02) 20.05 20.06 (0.04)
r magnitude 20.16 (0.02) 20.16 (0.02) 20.16 20.16 (0.02)
i magnitude 20.39 (0.04) 20.39 (0.04) 20.38 20.37 (0.04)
z magnitude 20.70 (0.2) 20.70 (0.2) 20.69 20.67 (0.1)
G magnitude 20.08 (0.05) 20.13 20.08 (0.006)
BP magnitude 20.18 (0.05) 20.12
RP magnitude 20.09 (0.2) 20.26
Pan g magnitude 20.03 (0.03)
Pan r magnitude 20.17 (0.03)
Pan i magnitude 20.37 (0.02)
Pan z magnitude 20.48 (0.04)
Pan y magnitude 20.33 (0.2)
E(B-V) 0.019

* 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.