PG 0938+550

All names: SDSS J094209.48+544712.4, LAMOST J094209.49+544712.5, Gaia EDR3 1021452731770726016, SBSS 0938+550B, PG 0938+550, GALEX J094209.4+544712, Gaia DR2 1021452731770726016, WDJ094209.50+544712.61, MaNGA 3-151067713, Gaia DR3 1021452731770726016, TIC 328629385, LAMOST J094209.41+544712.4, SDSS J094209.47+544712.4, 2MASS J09420950+5447126, WD 0938+550

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Liebert et al. 2005 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 09 42 09.37 (0.3) 09 42 09.37 (0.2) 09 42 09.37 09 42 09.49 (0.3) 09 42 09.37 09 42 09.12
Declination 54 47 12.14 (0.2) 54 47 12.15 (0.3) 54 47 12.14 54 47 12.55 (0.2) 54 47 12.15 54 47 12.12
Spectral type DA DAZ DA DA DA2.6 DA4
Effective temperature [K] 14559.0 18277.0 (283) 19150.0 (315) 18530.0 (303) 16668.0 (99)
log(g) [cgs] 7.20 8.11 (0.05) 8.23 (0.05) 8.10 (0.05) 8.12 (0.02)
Mass [M] 0.285 0.68 (0.03) 0.76 (0.03) 0.68 (0.03) 0.685 (0.02)
log(Luminosity) [L] -1.80
Cooling age [Gyr] 0.0930 0.1479
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] 19.49 (0.4) 11.65 (0.4) 19.49 19.49 (0.4) 11.65 (0.4)
Distance [pc] 51.31 (1) 85.81 (3) 53.00 57.00 51.31 51.31 (1) 85.81 (3)
Composition H H
Proper motion (right ascension) [mas/yr] -65.62229057 (0.3) -72.58578998 (0.5) -65.622 (0.3) -72.58578998
Proper motion (declination) [mas/yr] -25.72297309 (0.3) -29.5544148 (0.5) -25.723 (0.3) -29.5544148
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.20
V magnitude 14.82
R magnitude
I magnitude
J magnitude 15.18 (0.04)
H magnitude 15.31 (0.03)
K magnitude 15.40 (0.05)
u magnitude 14.82 (0.003) 14.84 (0.004)
g magnitude 14.68 (0.003) 14.69 (0.003)
r magnitude 15.02 (0.003) 15.02 (0.003)
i magnitude 15.27 (0.003) 15.27 (0.003)
z magnitude 15.57 (0.006) 15.56 (0.006)
G magnitude 14.85 (0.0007) 14.87 14.85 14.85 (0.003) 14.87
BP magnitude 14.79 (0.0007) 14.77 14.77
RP magnitude 14.98 (0.001) 14.98 14.98
Pan g magnitude 14.75 (0.003)
Pan r magnitude 15.03 (0.002)
Pan i magnitude 15.30 (0.006)
Pan z magnitude 15.54 (0.005)
Pan y magnitude 15.72 (0.005)
E(B-V) 0.001

* 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.