PHL 378

All names: 2MASS J22423129-1941077, PHL 378, GALEX J224231.1-194107, EC 22398-1956, EC22398-1956, Gaia DR3 2401334945546768384, TIC 444152574, UCAC4 352-188815, Gaia DR2 2401334945546768384

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 22 42 31.19 22 42 31.25 (0.04)
Declination -19 41 07.33 -19 41 08.08 (0.04)
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] 0.41 (0.08) 0.35 (0.05)
Distance [pc] 2457.00 (458) 2866.15 (386)
Composition
Proper motion (right ascension) [mas/yr] 4.877 (0.2) 5.038 (0.05)
Proper motion (declination) [mas/yr] -10.641 (0.1) -11.016 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.23 (0.01)
V magnitude 15.48 (0.08)
R magnitude 14.87 (0.8)
I magnitude
J magnitude 16.16 (0.1) 16.16 (0.1)
H magnitude 16.07 (0.2) 16.07 (0.2)
K magnitude 17.11
u magnitude
g magnitude 15.25 (0.05)
r magnitude 15.71 (0.04)
i magnitude
z magnitude
G magnitude 15.44 (0.002) 15.42 (0.003)
BP magnitude 15.20 (0.01)
RP magnitude 15.73 (0.004)
Pan g magnitude 15.25 (0.003)
Pan r magnitude 15.69 (0.003)
Pan i magnitude 16.06 (0.002)
Pan z magnitude 16.34 (0.005)
Pan y magnitude 16.54 (0.01)
E(B-V) 0.020

* 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.