SDSS J124724.63+625329.1

All names: GALEX J124724.3+625330, Gaia DR2 1676751796385156352, Gaia DR3 1676751796385156352, SDSS J124724.62+625329.1, WD 1245+631, Gaia EDR3 1676751796385156352, SDSS J124724.62+625329.0, SDSS J124724.63+625329.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 47 24.48 (0.4) 12 47 24.63 12 47 24.49 (0.6) 12 47 24.64 (0.4) 12 47 24.63 12 47 24.38 12 47 24.62
Declination 62 53 28.98 (0.5) 62 53 29.06 62 53 28.99 (0.6) 62 53 29.05 (0.5) 62 53 29.19 62 53 26.52 62 53 29.08
Spectral type DC: DC: DC+M DC: DC: DCM: DC
Effective temperature [K] 7998.0 7943.0 10123.0 (59) 10125.0 (59)
log(g) [cgs] 7.70 7.67 8.11 (0.6) 8.64 (0.8)
Mass [M] 0.434 0.4
log(Luminosity) [L]
Cooling age [Gyr] 0.7442 0.7541
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.08 (0.5) 2.89 (0.7) 4.08 (0.5)
Distance [pc] 244.91 (29) 345.51 (84) 244.91 (29)
Composition
Proper motion (right ascension) [mas/yr] -67.99301137 (0.5) -70.25315203 (2) -67.993 (0.5) -64.8
Proper motion (declination) [mas/yr] -4.369584018 (0.5) -6.955104238 (1) -4.37 (0.5) -15.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.67 (0.06) 20.67 (0.06) 20.71 (0.06) 20.70 20.68 (0.06)
g magnitude 20.32 (0.02) 20.32 (0.02) 20.32 (0.03) 20.31 20.32 (0.03)
r magnitude 20.32 (0.03) 20.32 (0.03) 20.31 (0.03) 20.32 (0.03)
i magnitude 20.37 (0.04) 20.37 (0.04) 20.38 (0.04) 20.38 (0.04)
z magnitude 20.25 (0.1) 20.25 (0.1) 20.19 (0.2) 20.20 (0.2)
G magnitude 20.24 (0.06) 20.32 20.24 (0.006)
BP magnitude 20.35 (0.06) 20.09
RP magnitude 20.01 (0.1) 19.93
Pan g magnitude 20.33 (0.01)
Pan r magnitude 20.30 (0.02)
Pan i magnitude 20.34 (0.05)
Pan z magnitude 20.35 (0.06)
Pan y magnitude 20.18 (0.2)
E(B-V) 0.015

* 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.