JL 117

All names: Gaia DR2 6382360748052774528, GALEX J225437.7-722306, JL 117, GSC 09340-00915, UBV M 43556, TIC 421939894, Gaia DR3 6382360748052774528, EC22510-7239, 2MASS J22543801-7223097, GEN# +6.20022117, EC 22510-7239, Gaia EDR3 6382360748052774528

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 22 54 38.00 (0.03) 22 54 37.88 22 54 38.00 (0.03)
Declination -72 23 09.62 (0.03) -72 23 09.17 -72 23 09.73 (0.03)
Spectral type sdO sdO
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] 1.76 (0.03) 1.75 (0.05) 1.76 (0.03)
Distance [pc] 569.57 (11) 571.95 (16) 569.57 (11)
Composition
Proper motion (right ascension) [mas/yr] -0.774 (0.03) -0.623 (0.08) -0.774 (0.03)
Proper motion (declination) [mas/yr] 6.526 (0.04) 6.617 (0.08) 6.526 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.12
V magnitude 14.49
R magnitude
I magnitude
J magnitude 15.24 (0.05) 15.24 (0.05)
H magnitude 15.43 (0.1) 15.43 (0.1)
K magnitude 15.33 (0.2) 15.33 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.40 (0.003) 14.42 (0.001) 14.40 (0.003)
BP magnitude 14.22 (0.004) 14.14 (0.01)
RP magnitude 14.75 (0.004) 14.75 (0.004)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.026

* 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.