SDSS J102239.05+194904.3

All names: Gaia DR3 624711273900724864, SDSS J102239.05+194904.2, SDSS J102239.06+194904.3, WD 1019+200, Gaia DR2 624711273900724864, Gaia EDR3 624711273900724864, SDSS J102239.05+194904.3

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 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 22 39.01 (0.2) 10 22 39.06 10 22 39.02 (0.3) 10 22 39.06 10 22 39.01 10 22 39.09 (0.2) 10 22 38.88 10 22 39.06
Declination 19 49 04.16 (0.2) 19 49 04.29 19 49 04.17 (0.3) 19 49 04.30 19 49 04.16 19 49 04.36 (0.2) 19 49 01.56 19 49 04.33
Spectral type DAH DA DA DAH DA DAH DAH5.6 DAH DA
Effective temperature [K] 8672.9 (189) 8898.0 9000.0 9392.0 (482) 10060.0 (96)
log(g) [cgs] 8.38 (0.3) 8.43 8.00 (0) 8.55 (0.09) 9.42 (0.08)
Mass [M] 0.8378888776137728 (0.4) 0.868 0.952 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 1.7460
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] 7.28 (0.3) 7.16 (0.3) 7.28 7.28 (0.3)
Distance [pc] 137.39 (5) 139.74 (7) 137.39 137.39 (5)
Composition H H
Proper motion (right ascension) [mas/yr] -68.96571867 (0.2) -69.31271639 (0.6) -68.966 (0.2)
Proper motion (declination) [mas/yr] -12.46256798 (0.2) -12.355611 (0.6) -12.463 (0.2)
Variability
Magnetic yes yes yes yes
Bd [MG] 2.6457133782479056 2.94 (0.7) 2.94 (0.7)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.43 (0.03) 19.42 (0.03) 19.43 19.40 (0.03)
g magnitude 19.02 (0.009) 19.02 (0.009) 19.01 19.02 (0.02)
r magnitude 19.01 (0.01) 19.01 (0.01) 19.01 19.02 (0.02)
i magnitude 19.12 (0.01) 19.12 (0.01) 19.11 19.13 (0.02)
z magnitude 19.14 (0.04) 19.14 (0.04) 19.13 19.14 (0.04)
G magnitude 18.97 (0.03) 19.00 18.97 18.97 (0.004)
BP magnitude 19.04 (0.03) 19.06
RP magnitude 18.87 (0.03) 18.82
Pan g magnitude 19.01 (0.008)
Pan r magnitude 19.03 (0.007)
Pan i magnitude 19.11 (0.01)
Pan z magnitude 19.22 (0.02)
Pan y magnitude 19.31 (0.03)
E(B-V) 0.008

* 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.