SDSS J155614.33+445153.8

All names: Gaia DR2 1396899355239529088, GALEX J155614.2+445154, Gaia EDR3 1396899355239529088, SDSS J155614.33+445153.82, SDSS J155614.33+445153.8, SDSS J155614.31+445153.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Gaia DR2 Kepler et al. 2015 Simbad
Right ascension 15 56 14.32 (0.2) 15 56 14.32 15 56 14.32 (0.3) 15 56 14.32
Declination 44 51 53.84 (0.2) 44 51 53.85 44 51 53.84 (0.4) 44 51 53.85
Spectral type ELM-DA DA
Effective temperature [K] 8065.0 (66)
log(g) [cgs] 6.13 (0.3)
Mass [M☉] 0.157 (0.04)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.14 (0.2) -0.13 (0.3)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -1.824421728 (0.3) -1.698962332 (0.5)
Proper motion (declination) [mas/yr] -0.979552779 (0.3) -0.756568647 (0.7)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.65 (0.06) 20.64 (0.06) 20.65 (0.06)
g magnitude 19.52 (0.01) 19.52 (0.03) 19.52 (0.01)
r magnitude 19.51 (0.01) 19.51 (0.02) 19.50 (0.01)
i magnitude 19.57 (0.02) 19.57 (0.03) 19.57 (0.02)
z magnitude 19.67 (0.07) 19.63 (0.06) 19.67 (0.07)
G magnitude 19.48 (0.03) 19.52
BP magnitude 19.62 (0.03) 19.65
RP magnitude 19.15 (0.05) 19.11
Pan g magnitude 19.54 (0.01)
Pan r magnitude 19.51 (0.009)
Pan i magnitude 19.56 (0.01)
Pan z magnitude 19.67 (0.02)
Pan y magnitude 19.86 (0.1)
E(B-V)

* 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.