Ton S 98

All names: GD 1654, Gaia DR2 2381968628771144576, TIC 9144862, Gaia DR3 2381968628771144576, Ton S 98, 2MASS J23254738-2335505, GALEX J232547.4-233550, PHL 515, EC23231-2352, UCAC4 333-225063, BPS CS 30315-0060, GEN# +6.10160515, UCAC2 22367348, UBV M 43196, EC 23231-2352

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 23 25 47.31 23 25 47.39 (0.05)
Declination -23 35 50.60 -23 35 50.64 (0.05)
Spectral type sdB sdB
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] 0.14 (0.09) 0.17 (0.05)
Distance [pc] 6954.10 (4231) 5906.67 (1901)
Composition
Proper motion (right ascension) [mas/yr] 1.363 (0.1) 1.496 (0.05)
Proper motion (declination) [mas/yr] -4.296 (0.2) -3.995 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.59 (0.02)
V magnitude 15.63 (0.06)
R magnitude
I magnitude
J magnitude 15.85 (0.07) 15.85 (0.07)
H magnitude 15.80 (0.1) 15.80 (0.1)
K magnitude 15.66
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.61 (0.0009) 15.59 (0.003)
BP magnitude 15.50 (0.006)
RP magnitude 15.71 (0.005)
Pan g magnitude 15.47 (0.001)
Pan r magnitude 15.77 (0.005)
Pan i magnitude 16.05 (0.003)
Pan z magnitude 16.26 (0.004)
Pan y magnitude 16.36 (0.008)
E(B-V) 0.014

* 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.