SDSS J081554.52+382353.9

All names: Gaia DR2 908019239573926528, SDSS J081554.52+382353.9, SDSS J081554.51+382353.9, Gaia EDR3 908019239573926528, GALEX J081554.5+382354, Gaia DR3 908019239573926528

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 15 54.50 (0.2) 08 15 54.51 08 15 54.50 (0.3) 08 15 54.52 (0.2) 08 15 54.52
Declination 38 23 53.92 (0.3) 38 23 53.96 38 23 53.92 (0.2) 38 23 53.97 (0.3) 38 23 53.94
Spectral type DA DA DA DA
Effective temperature [K] 10950.0 11426.0 (109)
log(g) [cgs] 8.15 8.25 (0.06)
Mass [M] 0.694 0.75 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.5890
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] 4.11 (0.3) 3.99 (0.4) 4.11 (0.3)
Distance [pc] 243.08 (19) 250.78 (27) 243.08 (19)
Composition H
Proper motion (right ascension) [mas/yr] -17.22288079 (0.3) -17.54004526 (0.7) -17.223 (0.3)
Proper motion (declination) [mas/yr] -3.232166123 (0.3) -3.020646411 (0.4) -3.232 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.44 (0.02) 19.44 (0.02) 19.45 (0.03)
g magnitude 19.06 (0.009) 19.06 (0.009) 19.08 (0.02)
r magnitude 19.23 (0.01) 19.23 (0.01) 19.24 (0.01)
i magnitude 19.36 (0.02) 19.36 (0.02) 19.37 (0.02)
z magnitude 19.66 (0.06) 19.66 (0.06) 19.64 (0.06)
G magnitude 19.11 (0.03) 19.16 19.11 (0.005)
BP magnitude 19.24 (0.03) 19.27
RP magnitude 19.17 (0.06) 19.30
Pan g magnitude 19.07 (0.009)
Pan r magnitude 19.22 (0.006)
Pan i magnitude 19.43 (0.01)
Pan z magnitude 19.53 (0.03)
Pan y magnitude 19.68 (0.1)
E(B-V) 0.018

* 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.