SDSS J075404.76+504423.3

All names: SDSS J075404.75+504423.2, SDSS J075404.76+504423.2, Gaia DR2 935922267707876096, SDSS J075404.75+504423.24, GALEX J075404.7+504423, Gaia EDR3 935922267707876096, Gaia DR3 935922267707876096, SDSS J075404.76+504423.3

Parameter Unit Gaia EDR3 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 07 54 04.75 (0.2) 07 54 04.76 07 54 04.75 (0.2) 07 54 04.77 (0.2)
Declination 50 44 23.05 (0.2) 50 44 23.30 50 44 23.06 (0.2) 50 44 23.38 (0.2)
Spectral type DA DA DA DA
Effective temperature [K] 27615.0 22838.0 (145)
log(g) [cgs] 8.36 8.11 (0.02)
Mass [M] 0.856 0.6859999999999999 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0439
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] 2.19 (0.2) 2.28 (0.3) 2.19 (0.2)
Distance [pc] 456.72 (46) 438.05 (59) 456.73 (46)
Composition H
Proper motion (right ascension) [mas/yr] -14.75315374 (0.2) -14.56803421 (0.5) -14.753 (0.2)
Proper motion (declination) [mas/yr] -20.34901381 (0.2) -20.38800441 (0.4) -20.349 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.92 (0.02) 18.92 (0.02) 18.92 (0.02)
g magnitude 18.77 (0.009) 18.80 (0.03) 18.77 (0.009)
r magnitude 19.06 (0.01) 19.09 (0.02) 19.06 (0.01)
i magnitude 19.35 (0.02) 19.38 (0.05) 19.35 (0.02)
z magnitude 19.93 (0.08) 19.92 (0.1) 19.93 (0.08)
G magnitude 18.94 (0.03) 18.99 18.94 (0.004)
BP magnitude 18.86 (0.03) 18.77
RP magnitude 18.88 (0.05) 18.71
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.052

* 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.