SDSS J092442.17+231855.4

All names: Gaia EDR3 639171672871712256, SDSS J092442.17+231855.4, Gaia DR2 639171672871712256, GALEX J092442.1+231855, Gaia DR3 639171672871712256, SDSS J092442.16+231855.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 24 42.19 (0.5) 09 24 42.17 09 24 42.19 (0.6) 09 24 42.16 (0.5) 09 24 42.17
Declination 23 18 55.47 (0.4) 23 18 55.38 23 18 55.47 (0.7) 23 18 55.46 (0.4) 23 18 55.43
Spectral type DA DAHM: DAH+M DAHM: DA
Effective temperature [K] 7535.4 (75) 7468.0 7642.0 (101)
log(g) [cgs] 8.12 (0.1) 8.10 7.98 (0.2)
Mass [M] 0.6656150397300398 (0.1) 0.657
log(Luminosity) [L]
Cooling age [Gyr] 1.4790
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] 5.32 (0.5) 5.45 (0.7) 5.32 (0.5)
Distance [pc] 187.86 (18) 183.34 (23) 187.86 (18)
Composition H
Proper motion (right ascension) [mas/yr] 28.12216341 (0.5) 27.93695206 (1) 28.122 (0.5)
Proper motion (declination) [mas/yr] 0.602572363 (0.5) 1.187498755 (1) 0.603 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.25 (0.04) 20.25 (0.04) 20.27 (0.04)
g magnitude 19.81 (0.01) 19.80 (0.01) 19.81 (0.02)
r magnitude 19.69 (0.02) 19.69 (0.02) 19.72 (0.02)
i magnitude 19.65 (0.02) 19.65 (0.02) 19.68 (0.03)
z magnitude 19.77 (0.07) 19.77 (0.07) 19.78 (0.07)
G magnitude 19.67 (0.05) 19.70 19.67 (0.004)
BP magnitude 19.92 (0.05) 19.90
RP magnitude 19.42 (0.06) 19.47
Pan g magnitude 19.79 (0.006)
Pan r magnitude 19.71 (0.01)
Pan i magnitude 19.70 (0.02)
Pan z magnitude 19.78 (0.01)
Pan y magnitude 19.70 (0.05)
E(B-V) 0.013

* 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.