Ton 949

All names: UCAC2 44305820, LSPM J0846+3538, KUV 08436+3550, 2MASS J08464443+3538337, 1SWASP J084644.40+353833.7, Gaia DR2 717393648787722624, WD 0843+358, GALEX J084644.3+353833, WDJ084644.41+353833.56, Ton 949, USNO-B1.0 1256-00166538, WD 0843+36, PM J08467+3538, J0846+3538, GEN# +6.10060095, CNS5 2165, Gaia EDR3 717393648787722624, TIC 165892318, GD 95, NLTT 20211, Gaia DR3 717393648787722624, 08467+3538, CBS 84

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Coutu et al. 2019 Gaia DR2 Stilism Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Sion et al. 1990 Liebert et al. 1987 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 46 44.21 (0.02) 08 46 44.21 (0.03) 08 46 44.41 08 46 44.21 (0.03) 08 46 44.40 08 46 44.21 08 46 44.41 (0.02) 08 46 44.21 08 46 44.86
Declination 35 38 32.49 (0.01) 35 38 32.53 (0.02) 35 38 33.56 35 38 32.53 (0.02) 35 38 31.20 35 38 32.49 35 38 33.56 (0.01) 35 38 32.53 35 38 46.68
Spectral type DZA DZA DZA DZ DZ DZ6 DZA DZ DZ DZ DZ
Effective temperature [K] 9146.0 (87) 8563.0 (20) 9198.2 (30) 8791.0 (204) 8580.0 (126) 9041.0 9041.0 (419) 8200.0 8200.0 8425.0 (30)
log(g) [cgs] 8.27 (0.02) 8.07 (0.003) 8.15 (0.009) 8.16 8.00 (0) (0) 7.99 (0.005)
Mass [M] 0.751 (0.01) 0.623 (0.003) 0.6773 0.58 (0.1) 0.58 (0) 0.57 (0.004)
log(Luminosity) [L] -3.11 -3.02
Cooling age [Gyr] 1.0900 1.1000 0.8600
log(H/He) -4.0 <-5.2721 -4.6 -3.0
log(C/He) -6.0
log(Ca/He) -8.69 -8.6909 (0.1) -8.56 -9.2
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He) -6
log(Al/He)
log(Si/He)
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) -8.3
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 40.72 (0.03) 40.72 (0.03) 40.68 (0.05) 40.68 (0.05) 40.68 40.68 (0.05) 40.72 40.72 (0.03) 40.68 (0.05)
Distance [pc] 24.56 (0.02) 24.56 (0.02) 24.58 (0.03) 24.58 (0.03) 24.58 (0.03) 24.58 (0.03) 25.50 (0.5) 23.10 27.00 (2) 24.56 24.56 (0.02) 24.58 (0.03)
Composition He He He He He
Proper motion (right ascension) [mas/yr] -156.6462242 (0.03) -156.6077264 (0.07) -156.646 (0.03) -156.6077264
Proper motion (declination) [mas/yr] -66.79048971 (0.02) -66.69456611 (0.05) -66.79 (0.02) -66.69456611
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.03
V magnitude
R magnitude 14.40
I magnitude
J magnitude 14.66 (0.004) 14.68 14.68 (0.04)
H magnitude 14.63 (0.07) 14.63 14.63 (0.07)
K magnitude 14.59 (0.09) 14.59 14.59 (0.09)
u magnitude 15.06 (0.004) 15.06 (0.004)
g magnitude 14.75 14.73 (0.003)
r magnitude 14.80 14.80 (0.003)
i magnitude 14.93 14.93 (0.003)
z magnitude 15.14 15.12 (0.005)
G magnitude 14.74 (0.001) 14.76 14.76 14.74 14.74 (0.003) 14.76
BP magnitude 14.81 (0.001) 14.80 14.80
RP magnitude 14.64 (0.001) 14.64 14.64
Pan g magnitude 14.77 (0.003) 14.77 (0.004)
Pan r magnitude 14.83 (0.002) 14.83 (0.002)
Pan i magnitude 14.95 (0.002) 14.95 (0.002)
Pan z magnitude 15.13 (0.003) 15.13 (0.003)
Pan y magnitude 15.23 (0.007) 15.23 (0.007)
E(B-V) 0.000

* 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.