A3 463

All names: SDSS J123459.31+131902.3, SDSS J123459.31+131902.4, SDSS J123459.31+131903.3, PSO J123459.329+131903.194, Gaia DR2 3931881176091866624, SDSS J123459.31+131902.35

Parameter Unit Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 12 34 59.33 (0.08) 12 34 59.32 12 34 59.30
Declination 13 19 03.27 (0.06) 13 19 03.33 13 19 03.16
Spectral type DA+M2 DA+M2
Effective temperature [K] 32972.0 (141)
log(g) [cgs] 8.11 (0.05)
Mass [M] 0.705 (0.02)
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.85 (0.1)
Distance [pc] 351.06 (13)
Composition
Proper motion (right ascension) [mas/yr] 13.9902764193 (0.2) 21.2
Proper motion (declination) [mas/yr] -14.787589289 (0.1) -10.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.99
V magnitude 16.74
R magnitude 15.10
I magnitude
J magnitude 14.20
H magnitude 13.50
K magnitude 13.31
u magnitude 16.75 (0.02) 16.82 (0.007) 16.99
g magnitude 16.93 (0.02) 16.76 (0.004) 17.11
r magnitude 16.71 (0.02) 16.41 (0.004) 17.45
i magnitude 15.89 (0.02) 15.80 (0.004) 18.38
z magnitude 15.41 (0.03) 15.41 (0.006) 18.47
G magnitude 16.57
BP magnitude 16.65
RP magnitude 15.42
Pan g magnitude 16.92 (0.01)
Pan r magnitude 16.60 (0.02)
Pan i magnitude 15.88 (0.006)
Pan z magnitude 15.51 (0.007)
Pan y magnitude 15.28 (0.003)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.