Ton 10

All names: Gaia EDR3 691116660913783936, WD 0840+262, UBV M 43096, FB 51, Ton 10, WDJ084359.37+260256.59, Gaia DR2 691116660913783936, Gaia DR3 691116660913783936, TIC 117278328, TON 10, GSC 01945-01976, PG 0840+262, GEN# +6.10070010, 2MASS J08435938+2602566, EGGR 291, GALEX J084359.2+260257, SDSS J084359.33+260256.4

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD HE Gaia DR2 Stilism Koester et al. 2014 Bergeron et al. 2011 Wegner et al. 1987 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 43 59.23 (0.03) 08 43 59.24 (0.05) 08 43 59.23 08 43 59.37 (0.03) 08 43 59.24 08 43 57.62
Declination 26 02 55.78 (0.02) 26 02 55.80 (0.03) 26 02 55.78 26 02 56.59 (0.02) 26 02 55.80 26 03 13.68
Spectral type DBA DBA DBA DB DB3 DB3
Effective temperature [K] 18060.0 (354) 17643.0 17770.0 17770.0 (421) 16000.0 18157.0 (223)
log(g) [cgs] 8.18 (0.02) 8.15 8.30 8.30 (0.07) 8.19 (0.01)
Mass [M] 0.706 (0.01) 0.684 0.78 (0.04) 0.707 (0.01)
log(Luminosity) [L] -2.01
Cooling age [Gyr] 0.1559 0.1995
log(H/He) -4.0 -3.98 (0.05) -4.5
log(C/He) <-8.3 <-7
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He) <-9.0
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 18.39 (0.04) 18.35 (0.07) 18.39 18.39 (0.04) 18.35 (0.07)
Distance [pc] 54.38 (0.1) 54.49 (0.2) 49.00 54.38 54.38 (0.1) 54.49 (0.2)
Composition He He He
Proper motion (right ascension) [mas/yr] -114.0448616 (0.04) -114.0811304 (0.1) -114.045 (0.04) -114.0811304
Proper motion (declination) [mas/yr] -50.86154523 (0.03) -50.77539351 (0.06) -50.862 (0.03) -50.77539351
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.68
V magnitude 14.78 14.78
R magnitude
I magnitude
J magnitude 15.28 (0.004)
H magnitude 15.34 (0.08)
K magnitude 15.39 (0.02)
u magnitude 14.48 (0.004) 14.50 (0.003)
g magnitude 14.60 (0.003) 14.62 (0.003)
r magnitude 14.95 (0.003) 14.95 (0.003)
i magnitude 15.22 (0.004) 15.22 (0.003)
z magnitude 15.52 (0.006) 15.51 (0.006)
G magnitude 14.78 (0.001) 14.80 14.78 14.78 (0.003) 14.80
BP magnitude 14.70 (0.001) 14.66 14.66
RP magnitude 14.92 (0.001) 14.93 14.93
Pan g magnitude 14.67 (0.004)
Pan r magnitude 14.97 (0.002)
Pan i magnitude 15.26 (0.001)
Pan z magnitude 15.50 (0.003)
Pan y magnitude 15.67 (0.007)
E(B-V) 0.001

* 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.