SDSS J155656.10+102838.7

All names: Gaia DR3 4455865292124148480, Gaia EDR3 4455865292124148480, SDSS J155656.10+102838.7, SDSS J155656.10+102838.74, SDSS J155656.09+102838.7, Gaia DR2 4455865292124148480

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 15 56 56.09 (0.3) 15 56 56.10 15 56 56.09 (0.4) 15 56 56.10 (0.3)
Declination 10 28 39.29 (0.2) 10 28 38.72 10 28 39.26 (0.3) 10 28 38.47 (0.2)
Spectral type DC DC DC DC DZ
Effective temperature [K] 7073.0 6843.0 6600.0 (1999)
log(g) [cgs] 8.41 8.32 9.00 (0.5)
Mass [M] 0.855 0.781
log(Luminosity) [L]
Cooling age [Gyr] 3.3630 3.1960
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 5.97 (0.4) 7.00 (0.5) 5.97 (0.4)
Distance [pc] 167.46 (11) 142.94 (10) 167.46 (11)
Composition
Proper motion (right ascension) [mas/yr] -11.72813839 (0.4) -10.65441064 (0.9) -11.728 (0.4)
Proper motion (declination) [mas/yr] 51.25010757 (0.3) 51.21506083 (0.7) 51.25 (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 20.62 (0.06) 20.62 (0.06) 20.62 (0.06)
g magnitude 19.97 (0.02) 19.97 (0.02) 19.97 (0.02)
r magnitude 19.79 (0.02) 19.79 (0.02) 19.79 (0.02)
i magnitude 19.71 (0.02) 19.71 (0.02) 19.71 (0.02)
z magnitude 19.74 (0.07) 19.74 (0.07) 19.74 (0.07)
G magnitude 19.79 (0.07) 19.83 19.79 (0.005)
BP magnitude 20.05 (0.07) 19.99
RP magnitude 19.46 (0.06) 19.48
Pan g magnitude 19.97 (0.02)
Pan r magnitude 19.78 (0.01)
Pan i magnitude 19.78 (0.01)
Pan z magnitude 19.83 (0.02)
Pan y magnitude 19.88 (0.04)
E(B-V) 0.022

* 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.