SDSS J130717.06+454857.3

All names: GALEX J130717.0+454856, Gaia DR2 1553835776608129536, SDSS J130717.06+454857.3, Gaia DR3 1553835776608129536, SDSS J130717.06+454857.34, Gaia EDR3 1553835776608129536

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 13 07 17.05 (0.2) 13 07 17.06 13 07 17.05 (0.2) 13 07 17.07 (0.2)
Declination 45 48 57.05 (0.2) 45 48 57.34 45 48 57.06 (0.2) 45 48 57.39 (0.2)
Spectral type DC: DC: DC: DC DC
Effective temperature [K] 10461.0 10486.0 10957.0 (281)
log(g) [cgs] 8.32 8.26 8.00 (0)
Mass [M☉] 0.801 0.742
log(Luminosity) [L☉]
Cooling age [Gyr] 0.8639 0.8033
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.53 (0.3) 3.92 (0.4) 3.53 (0.3)
Distance [pc] 283.10 (25) 254.90 (23) 283.10 (25)
Composition
Proper motion (right ascension) [mas/yr] -15.97562071 (0.2) -15.80007289 (0.4) -15.976 (0.2)
Proper motion (declination) [mas/yr] -21.26802803 (0.3) -22.19085208 (0.4) -21.268 (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 19.65 (0.03) 19.62 (0.04) 19.64 (0.03)
g magnitude 19.52 (0.01) 19.52 (0.02) 19.51 (0.01)
r magnitude 19.66 (0.02) 19.67 (0.02) 19.66 (0.02)
i magnitude 19.74 (0.03) 19.76 (0.04) 19.74 (0.03)
z magnitude 19.77 (0.09) 19.77 (0.09) 19.77 (0.09)
G magnitude 19.54 (0.02) 19.59 19.54 (0.004)
BP magnitude 19.58 (0.02) 19.50
RP magnitude 19.49 (0.05) 19.45
Pan g magnitude 19.53 (0.01)
Pan r magnitude 19.64 (0.01)
Pan i magnitude 19.81 (0.01)
Pan z magnitude 19.98 (0.02)
Pan y magnitude 19.78 (0.1)
E(B-V) 0.017

* 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.