Balloon 90100001

All names: GALEX J231521.4+290502, GSC 02248-01751, Gaia DR2 2846162921688127360, TIC 90960668, UCAC2 42168244, TYC 2248-1751-1, 2MASS J23152147+2905015, V* V585 Peg, Gaia DR3 2846162921688127360, Gaia DR1 2846162917391360896, Bal90100001, Balloon 90100001

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 23 15 21.30 23 15 21.48 (0.02)
Declination 29 05 00.99 29 05 01.43 (0.02)
Spectral type sdBV sdB
Effective temperature [K] 29400.0
log(g) [cgs] 5.33
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.73 (0.06) 2.57 (0.04)
Distance [pc] 365.63 (9) 388.36 (6)
Composition
Proper motion (right ascension) [mas/yr] 10.189 (0.1) 10.177 (0.03)
Proper motion (declination) [mas/yr] -11.776 (0.08) -12.046 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 11.90 (0.08)
V magnitude 12.30 (0.2)
R magnitude
I magnitude
J magnitude 12.57 (0.02) 12.57 (0.02)
H magnitude 12.70 (0.02) 12.70 (0.02)
K magnitude 12.76 (0.03) 12.76 (0.03)
u magnitude 12.22 (0.002)
g magnitude
r magnitude
i magnitude 12.65 (0.001)
z magnitude 14.25 (0.01)
G magnitude 12.10 (0.002) 12.08 (0.003)
BP magnitude 11.93 (0.007)
RP magnitude 12.29 (0.005)
Pan g magnitude 11.86
Pan r magnitude 12.28
Pan i magnitude 12.61
Pan z magnitude 12.87
Pan y magnitude 13.04 (0.01)
E(B-V) 0.051

* 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.