SDSS J081523.27+345056.2

All names: Gaia DR3 902861671046452608, SDSS J081523.27+345056.3, Gaia EDR3 902861671046452608, GALEX J081523.4+345056, Gaia DR2 902861671046452608, SDSS J081523.27+345056.29, SDSS J081523.26+345056.1, SDSS J081523.27+345056.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 08 15 23.27 (0.5) 08 15 23.27 08 15 23.27 (0.8) 08 15 23.28 (0.5)
Declination 34 50 55.87 (0.4) 34 50 56.17 34 50 55.89 (0.5) 34 50 56.37 (0.4)
Spectral type DA DA DA DA
Effective temperature [K] 8022.0 8456.0 (102)
log(g) [cgs] 7.68 7.59 (0.2)
Mass [M] 0.426 0.416 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.7273
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] 2.95 (0.6) 3.02 (0.7) 2.95 (0.6)
Distance [pc] 338.85 (67) 331.54 (78) 338.85 (67)
Composition H
Proper motion (right ascension) [mas/yr] -9.500096094 (0.6) -9.142382555 (2) -9.5 (0.6)
Proper motion (declination) [mas/yr] -31.18398646 (0.4) -32.56849831 (1) -31.184 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.61 (0.06) 20.60 (0.05) 20.61 (0.06)
g magnitude 20.21 (0.02) 20.22 (0.02) 20.21 (0.02)
r magnitude 20.15 (0.02) 20.17 (0.02) 20.15 (0.02)
i magnitude 20.16 (0.03) 20.17 (0.03) 20.16 (0.03)
z magnitude 20.33 (0.1) 20.30 (0.1) 20.33 (0.1)
G magnitude 20.14 (0.08) 20.18 20.14 (0.007)
BP magnitude 20.50 (0.08) 20.49
RP magnitude 19.86 (0.1) 19.90
Pan g magnitude 20.21 (0.02)
Pan r magnitude 20.16 (0.009)
Pan i magnitude 20.21 (0.009)
Pan z magnitude 20.26 (0.04)
Pan y magnitude 20.24 (0.2)
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.