SDSS J084437.20+391429.6

All names: Gaia DR2 910751044932458240, Gaia EDR3 910751044932458240, SDSS J084437.20+391429.6, Gaia DR3 910751044932458240, SDSS J084437.20+391429.66

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 08 44 37.19 (0.3) 08 44 37.20 08 44 37.19 (0.4) 08 44 37.19 (0.3)
Declination 39 14 29.58 (0.2) 39 14 29.65 39 14 29.58 (0.3) 39 14 29.63 (0.2)
Spectral type sdA sdA
Effective temperature [K] 7791.0 (53)
log(g) [cgs] 5.85 (0.2)
Mass [M☉] 0.15144 (0.0008)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.53 (0.4) -1.20 (0.5)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 0.292108107 (0.4) -0.313685959 (0.7) 0.292 (0.4)
Proper motion (declination) [mas/yr] -3.037660322 (0.3) -3.644636643 (0.5) -3.038 (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 20.66 (0.07) 20.67 (0.07) 20.67 (0.07)
g magnitude 19.75 (0.01) 19.76 (0.03) 19.76 (0.03)
r magnitude 19.59 (0.02) 19.58 (0.03) 19.58 (0.03)
i magnitude 19.62 (0.02) 19.62 (0.03) 19.62 (0.03)
z magnitude 19.71 (0.07) 19.68 (0.07) 19.68 (0.07)
G magnitude 19.60 (0.04) 19.64 19.60 (0.004)
BP magnitude 19.85 (0.04) 19.77
RP magnitude 19.30 (0.04) 19.31
Pan g magnitude 19.70 (0.01)
Pan r magnitude 19.64 (0.01)
Pan i magnitude 19.66 (0.007)
Pan z magnitude 19.70 (0.01)
Pan y magnitude 19.64 (0.04)
E(B-V)

* 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.