SDSS J090439.94+281813.3

All names: Gaia DR2 692416180577859072, Gaia DR3 692416180577859072, GALEX J090439.9+281812, SDSS J090439.94+281813.3, Gaia EDR3 692416180577859072

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 04 39.94 (0.3) 09 04 39.94 09 04 39.94 (0.5) 09 04 39.94 09 04 39.95 (0.3) 09 04 39.94
Declination 28 18 12.66 (0.2) 28 18 13.31 28 18 12.68 (0.3) 28 18 12.66 28 18 13.53 (0.2) 28 18 13.34
Spectral type DA DA DA DA DA
Effective temperature [K] 8670.0 8082.0 (362) 8703.0 (80)
log(g) [cgs] 8.20 7.95 (0.1) 8.10 (0.1)
Mass [M] 0.722 0.567 (0.09) 0.654 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 1.1760
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 (0.3) 5.54 (0.6) 5.32 5.32 (0.3)
Distance [pc] 187.86 (12) 180.58 (20) 187.86 187.86 (12)
Composition H
Proper motion (right ascension) [mas/yr] -4.353493894 (0.4) -3.652117943 (0.8) -4.353 (0.4)
Proper motion (declination) [mas/yr] -54.26964378 (0.3) -54.06676525 (0.6) -54.27 (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 19.71 (0.03) 19.71 (0.03) 19.68 (0.04)
g magnitude 19.32 (0.01) 19.32 (0.01) 19.34 (0.02)
r magnitude 19.31 (0.01) 19.31 (0.01) 19.35 (0.02)
i magnitude 19.35 (0.02) 19.35 (0.02) 19.37 (0.02)
z magnitude 19.47 (0.06) 19.47 (0.06) 19.51 (0.06)
G magnitude 19.27 (0.04) 19.31 19.27 19.27 (0.004)
BP magnitude 19.39 (0.04) 19.42
RP magnitude 18.99 (0.04) 19.15
Pan g magnitude 19.32 (0.009)
Pan r magnitude 19.29 (0.007)
Pan i magnitude 19.38 (0.009)
Pan z magnitude 19.50 (0.02)
Pan y magnitude 19.56 (0.05)
E(B-V) 0.009

* 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.