SDSS J092827.78+245443.1

All names: Gaia DR3 645576362463107840, SDSS J092827.78+245443.1, SDSS J092827.76+245443.1, Gaia DR2 645576362463107840, Gaia EDR3 645576362463107840, GALEX J092827.7+245443

Parameter Unit Gaia EDR3 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 28 27.76 (0.8) 09 28 27.77 09 28 27.76 (1) 09 28 27.78 (0.8) 09 28 27.78
Declination 24 54 42.70 (0.6) 24 54 43.11 24 54 42.72 (0.9) 24 54 43.33 (0.6) 24 54 43.10
Spectral type DA DAH: DAH DAH: DA
Effective temperature [K] 13328.5 (903) 22218.0 12953.0 (546)
log(g) [cgs] (0.2) 7.11 9.25 (0.2)
Mass [M] 0.2382718197675433 (0.1) 0.3
log(Luminosity) [L]
Cooling age [Gyr] 0.0270
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] 3.13 (1) 0.54 (2) 3.13 (1)
Distance [pc] 319.33 (108) 1845.10 (6725) 319.33 (108)
Composition H
Proper motion (right ascension) [mas/yr] -14.84171447 (1) -19.36368109 (3) -14.842 (1)
Proper motion (declination) [mas/yr] -39.70282229 (0.8) -39.11372569 (2) -39.703 (0.8)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.70 (0.06) 20.60 (0.06) 20.60 (0.06)
g magnitude 20.43 (0.02) 20.43 (0.02) 20.41 (0.03)
r magnitude 20.53 (0.03) 20.53 (0.03) 20.56 (0.04)
i magnitude 20.76 (0.06) 20.65 (0.05) 20.65 (0.05)
z magnitude 21.51 (0.4) 21.35 (0.3) 21.35 (0.3)
G magnitude 20.44 (0.09) 20.52 20.44 (0.008)
BP magnitude 20.51 (0.09) 20.39
RP magnitude 20.43 (0.1) 20.32
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.027

* 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.