PG 1528+025

All names: GALEX J153059.2+021822, USNO-B1.0 0923-00356252, PG 1528+025, Gaia DR2 4421020604704127360, LAMOST J153059.22+021822.7, PG1528+025, Gaia DR3 4421020604704127360, SDSS J153059.20+021821.4

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 15 30 59.21 15 30 59.20 (0.06)
Declination 02 18 22.29 02 18 21.45 (0.05)
Spectral type He-sdO sdBO
Effective temperature [K] 64194.0 (593)
log(g) [cgs] 6.40 (0.08)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.25 (0.09) 0.11 (0.06)
Distance [pc] 4029.01 (1510) 8984.73 (4811)
Composition
Proper motion (right ascension) [mas/yr] -1.18 (0.2) -1.4 (0.08)
Proper motion (declination) [mas/yr] -11.561 (0.2) -11.48 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.00
V magnitude
R magnitude 16.40
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 15.75 (0.005)
g magnitude 16.16 (0.003)
r magnitude 16.65 (0.004)
i magnitude 17.01 (0.005)
z magnitude 17.34 (0.01)
G magnitude 16.43 (0.002) 16.40 (0.003)
BP magnitude 16.19 (0.02)
RP magnitude 16.70 (0.01)
Pan g magnitude 16.25 (0.003)
Pan r magnitude 16.67 (0.004)
Pan i magnitude 17.03 (0.002)
Pan z magnitude 17.31 (0.009)
Pan y magnitude 17.51 (0.01)
E(B-V) 0.041

* 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.