Ton S 148

All names: GALEX J001853.1-315602, MCT0016-3212, PHL 786, Gaia DR3 2316462680926136960, SGPA 4, 2MASS J00185321-3156019, HE 0016-3212, MCT 0016-3212, UBV M 43208, EC 00163-3212, TIC 63695388, Gaia DR2 2316462680926136960, GEN# +6.10160786, Ton S 148

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 00 18 53.17 00 18 53.22 (0.04)
Declination -31 56 01.79 -31 56 01.93 (0.03)
Spectral type He-sdO sdBC0.2VIHe37
Effective temperature [K] 41674.0 (1000)
log(g) [cgs] 5.70 (0.1)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.56 (0.06) 0.52 (0.04)
Distance [pc] 1779.36 (187) 1922.71 (154)
Composition
Proper motion (right ascension) [mas/yr] 5.987 (0.07) 6.115 (0.04)
Proper motion (declination) [mas/yr] -14.219 (0.07) -13.981 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.27
V magnitude 14.45
R magnitude
I magnitude
J magnitude 14.50 (0.04) 14.50 (0.04)
H magnitude 14.35 (0.05) 14.35 (0.05)
K magnitude 14.35 (0.08) 14.35 (0.08)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.39 (0.0006) 14.38 (0.003)
BP magnitude 14.24 (0.006)
RP magnitude 14.48 (0.002)
Pan g magnitude 14.47
Pan r magnitude 14.67
Pan i magnitude 14.81 (0.004)
Pan z magnitude 14.97
Pan y magnitude 15.06
E(B-V) 0.006

* 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.