SDSS J124107.34+401715.2

All names: GALEX 2686865574032572901, USNO-A2.0 1275-08124713, SDSS J124107.34+401715.2, PSO J124107.324+401715.162, Gaia DR2 1522020823542880000

Parameter Unit MWDD H MWDD HE Pan-STARRS DR1 Gaia DR2 sdss-wdms.org (29/04/2016) SDSS DR12 Simbad
Right ascension 12 41 07.31 (0.4) 12 41 07.34 12 41 07.34 12 41 07.34
Declination 40 17 15.06 (0.3) 40 17 15.20 40 17 15.23 40 17 15.23
Spectral type WD+MS WD+MS WD+MS DA+dM
Effective temperature [K] 8485.0 8669.0 12536.0 (562)
log(g) [cgs] 7.67 7.69 8.25 (0.1)
Mass [M] 0.42200000000000004 0.41200000000000003 0.76 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.6266 0.6187
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.32 (0.5)
Distance [pc] 301.17 (48) 397.00 (43)
Composition
Proper motion (right ascension) [mas/yr] -36.5157195018 (0.6) -28.0
Proper motion (declination) [mas/yr] -13.6406304586 (0.6) -10.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 18.90
V magnitude
R magnitude 19.10
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.10 20.14 (0.04) 20.14
g magnitude 19.61 19.62 (0.01) 19.62
r magnitude 19.79 19.82 (0.02) 19.82
i magnitude 19.82 19.84 (0.02) 19.84
z magnitude 19.60 19.57 (0.06) 19.57
G magnitude 19.78
BP magnitude 19.66
RP magnitude 19.27
Pan g magnitude 19.64 (0.008)
Pan r magnitude 19.85 (0.01)
Pan i magnitude 19.88 (0.01)
Pan z magnitude 19.57 (0.06)
Pan y magnitude 19.43 (0.05)

* 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.