Ton 930

All names: UBV M 43179, Gaia DR2 662848247026938240, Ton 930, Gaia DR3 662848247026938240, 2MASS J08353557+1944126, GEN# +6.10070930, TIC 195188000, Ton930, LAMOST J083535.57+194412.4

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 08 35 35.58 08 35 35.58 (0.04)
Declination 19 44 12.50 19 44 12.54 (0.03)
Spectral type sdB sdB
Effective temperature [K] 28986.0 (118)
log(g) [cgs] 5.67 (0.03)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.34 (0.1) 1.53 (0.05)
Distance [pc] 745.21 (56) 652.19 (23)
Composition
Proper motion (right ascension) [mas/yr] 10.465 (0.1) 10.781 (0.05)
Proper motion (declination) [mas/yr] -28.752 (0.08) -28.693 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.91
V magnitude 13.14
R magnitude
I magnitude
J magnitude 13.67 (0.03) 13.67 (0.03)
H magnitude 13.84 (0.03) 13.84 (0.03)
K magnitude 13.82 (0.04) 13.82 (0.04)
u magnitude 13.18 (0.005)
g magnitude 12.95 (0.001)
r magnitude 13.45 (0.002)
i magnitude 13.82 (0.001)
z magnitude 14.16 (0.008)
G magnitude 13.10 (0.0009) 13.08 (0.003)
BP magnitude 12.90 (0.006)
RP magnitude 13.33 (0.002)
Pan g magnitude 12.89
Pan r magnitude 13.34
Pan i magnitude 13.67 (0.002)
Pan z magnitude 13.95 (0.002)
Pan y magnitude 14.12 (0.003)
E(B-V) 0.030

* 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.