SDSS J013948.64+181050.2

All names: Gaia EDR3 94900910178047872, SDSS J013948.64+181050.2, Gaia DR3 94900910178047872, SDSS J013948.64+181050.20, Gaia DR2 94900910178047872

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 01 39 48.64 (0.3) 01 39 48.64 01 39 48.64 (0.4) 01 39 48.64 (0.3)
Declination 18 10 50.26 (0.3) 18 10 50.22 18 10 50.26 (0.3) 18 10 50.29 (0.3)
Spectral type sdA sdA
Effective temperature [K] 8736.0 (44)
log(g) [cgs] 5.72 (0.2)
Mass [M] 0.17657 (0.0002)
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.23 (0.3) -1.05 (0.4)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 2.055749715 (0.4) 1.209451467 (0.8) 2.056 (0.4)
Proper motion (declination) [mas/yr] -1.97691843 (0.3) -2.728299582 (0.6) -1.977 (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 20.48 (0.09) 20.45 (0.09) 20.45 (0.09)
g magnitude 19.51 (0.02) 19.51 (0.03) 19.51 (0.03)
r magnitude 19.50 (0.02) 19.48 (0.06) 19.48 (0.06)
i magnitude 19.63 (0.03) 19.62 (0.03) 19.62 (0.03)
z magnitude 19.88 (0.1) 19.85 (0.1) 19.85 (0.1)
G magnitude 19.50 (0.05) 19.54 19.50 (0.006)
BP magnitude 19.69 (0.05) 19.59
RP magnitude 19.24 (0.06) 19.36
Pan g magnitude 19.54 (0.006)
Pan r magnitude 19.53 (0.008)
Pan i magnitude 19.71 (0.02)
Pan z magnitude 19.77 (0.03)
Pan y magnitude 19.58 (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.