PB 222

All names: SDSS J102452.28+410752.90, Gaia EDR3 804516437615053568, Gaia DR2 804516437615053568, PB 222, SDSS J102452.28+410752.9, SDSS J102452.27+410752.8, Gaia DR3 804516437615053568, SDSS J102452.29+410752.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 10 24 52.27 (0.2) 10 24 52.29 10 24 52.27 (0.3) 10 24 52.27 10 24 52.30 (0.2)
Declination 41 07 52.83 (0.2) 41 07 52.95 41 07 52.84 (0.3) 41 07 52.83 41 07 52.96 (0.2)
Spectral type DA DAH: DAH: DA DAH DA
Effective temperature [K] 17013.9 (216) 17503.0 18241.0 (178) 17632.0 (1297)
log(g) [cgs] 7.87 (0.1) 7.91 8.04 (0.03) 7.89 (0.1)
Mass [M] 0.5450799708148429 (0.1) 0.569 0.556 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.0985
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] 2.47 (0.2) 2.46 (0.3) 2.47 2.47 (0.2)
Distance [pc] 404.87 (33) 406.23 (49) 404.87 404.87 (33)
Composition H
Proper motion (right ascension) [mas/yr] -25.37244267 (0.2) -25.5729148 (0.4) -25.372 (0.2)
Proper motion (declination) [mas/yr] -7.803267236 (0.2) -7.720583974 (0.5) -7.803 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.00 (0.02) 18.99 (0.03) 19.00 (0.02)
g magnitude 18.76 (0.008) 18.78 (0.02) 18.76 (0.008)
r magnitude 19.08 (0.01) 19.10 (0.02) 19.08 (0.01)
i magnitude 19.37 (0.02) 19.40 (0.02) 19.37 (0.02)
z magnitude 19.67 (0.07) 19.67 (0.07) 19.67 (0.07)
G magnitude 18.95 (0.02) 18.99 18.95 18.95 (0.004)
BP magnitude 18.92 (0.02) 18.91
RP magnitude 19.12 (0.04) 19.08
Pan g magnitude 18.80 (0.01)
Pan r magnitude 19.10 (0.006)
Pan i magnitude 19.41 (0.006)
Pan z magnitude 19.68 (0.01)
Pan y magnitude 19.83 (0.03)
E(B-V) 0.018

* 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.