SDSS J151912.85+432311.8

All names: GALEX J151912.8+432312, SDSSJ151912.85+432311.8, Gaia DR3 1394229637928085760, Gaia EDR3 1394229569209015808, Gaia DR2 1394229637928085760, SDSS J151912.85+432311.8

Parameter Unit Gaia EDR3 Geier 2020 Simbad
Right ascension 15 19 16.61 (0.4) 15 19 12.85 15 19 12.85 (0.2)
Declination 43 22 33.67 (0.4) 43 23 11.80 43 23 11.79 (0.2)
Spectral type sdB sdB
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.54 (0.5) -0.10 (0.3)
Distance [pc] 1844.00 (1545)
Composition
Proper motion (right ascension) [mas/yr] -6.139 (0.6) -0.736 (0.4) -1.024 (0.2)
Proper motion (declination) [mas/yr] 0.897 (0.5) -1.024 (0.5) -1.85 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.27 (0.02) 19.27 (0.02)
g magnitude 19.07 (0.01) 19.07 (0.01)
r magnitude 19.46 (0.01) 19.46 (0.01)
i magnitude 19.71 (0.02) 19.71 (0.02)
z magnitude 19.86 (0.08) 19.86 (0.08)
G magnitude 20.30 (0.006) 19.31 (0.003) 19.26 (0.004)
BP magnitude 20.42 (0.08) 19.21 (0.04)
RP magnitude 19.93 (0.09) 19.44 (0.05)
Pan g magnitude 19.12 (0.007)
Pan r magnitude 19.41 (0.009)
Pan i magnitude 19.73 (0.01)
Pan z magnitude 19.90 (0.02)
Pan y magnitude 20.02 (0.04)
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.