Ton 953

All names: PSO J132.2888+34.4966, Gaia DR3 716504796716020352, 2MASS J08490947+3429477, GJ 2073, GEN# +6.10060096, Ton 953, SDSS J084909.45+342947.7, CBS 85, 08491+3429, PM J08491+3429, LAMOST J084909.36+342947.9, TIC 284894657, WD 0846+34, GALEX J084909.4+342948, EGGR 323, J0849+3429, KUV 08460+3441, WD 0846+346, WDJ084909.48+342947.73, Gaia EDR3 716504796716020352, Gaia DR2 716504796716020352, 1SWASP J084909.48+342947.8, SDSS J084909.43+342947.7, WIRED J084909.45+342947.7, GD 96

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Blouin & Xu 2022 Kilic et al. 2020 McCleery et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Stilism Limoges et al. 2015 Gianninas et al. 2011 Tremblay et al. 2011 Farihi et al. 2008 Kilic et al. 2006 Zuckerman et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 49 09.32 (0.03) 08 49 09.43 08 49 09.32 (0.04) 08 49 09.32 (0.04) 08 49 09.32 08 49 09.48 (0.03) 08 49 09.32 08 49 09.45 08 49 10.03 08 49 09.45
Declination 34 29 47.86 (0.02) 34 29 47.74 34 29 47.85 (0.03) 34 29 47.85 (0.03) 34 29 47.86 34 29 47.73 (0.02) 34 29 47.85 34 29 47.71 34 29 44.88 34 29 47.71
Spectral type DA DAZ DA DA DAZ DA DA DA DA DA DAZ DAZ DA DA6.6 DA DA_auto DA7 DA DA
Effective temperature [K] 7502.0 (31) 7445.0 (59) 7548.0 (22) 7452.0 (58) 7502.0 (31) 7400.5 (38) 7415.0 (70) 7437.0 7530.0 (111) 7620.0 (110) 7490.0 (10) 7370.0 7373.0 7373.0 7502.0 (29) 7908.0 (16) 7343.0 (17)
log(g) [cgs] 7.97 (0.007) 7.94 (0.02) 7.98 (0.006) 7.95 (0.02) 7.96 (0.007) 7.93 (0.02) 7.95 (0.02) 7.95 8.08 (0.07) 8.13 (0.06) 8.02 (0.03) 8.00 8.00 7.96 (0.007) 8.47 (0.03) 7.80 (0.03)
Mass [M] 0.574 (0.006) 0.56 (0.01) 0.581 (0.005) 0.566 (0.01) 0.573 (0.006) 0.563 (0.01) 0.562 0.64 (0.04) 0.68 (0.04) 0.6 (0.02) 0.572 (0.006) 0.493 (0.01)
log(Luminosity) [L] -3.37
Cooling age [Gyr] 1.2500 1.2400 1.2210 (0.05) 1.2080 1.3183
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -9.66 (0.09) -9.41 -9.4 -9.409
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 32.43 (0.04) 32.43 (0.04) 32.37 (0.05) 32.37 (0.05) 32.37 (0.05) 32.37 (0.06) 32.37 (0.05) 32.43 32.43 (0.04) 32.37 (0.05)
Distance [pc] 30.84 (0.04) 30.84 (0.04) 30.89 (0.05) 30.89 (0.05) 30.89 (0.05) 30.89 (0.05) 30.89 (0.05) 28.70 (0.9) 28.00 30.84 30.84 (0.04) 30.89 (0.05)
Composition H H H H H H H H H H
Proper motion (right ascension) [mas/yr] -124.5095715 (0.04) -124.5841304 (0.08) -124.51 (0.04) -124.584 -119.6
Proper motion (declination) [mas/yr] 7.796204644 (0.03) 7.724760037 (0.05) 7.796 (0.03) 7.725 8.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.99
V magnitude 15.71 15.72
R magnitude
I magnitude
J magnitude 15.04 (0.005) 15.04 (0.04) 15.07 15.04 (0.04)
H magnitude 14.83 (0.07) 14.83 (0.07) 14.87 14.83 (0.07)
K magnitude 14.90 (0.1) 14.90 (0.1) 14.86 14.90 (0.1)
u magnitude 16.21 (0.006) 16.19 (0.005) 16.21 (0.006) 16.18 (0.005) 16.22 (0.02) 16.22 16.20 (0.02)
g magnitude 15.73 (0.004) 15.73 (0.004) 15.74 (0.004) 15.76 (0.03) 15.75 15.74 (0.03)
r magnitude 15.60 (0.004) 15.62 (0.002) 15.62 (0.003) 15.62 (0.01) 15.61 15.61 (0.01)
i magnitude 15.60 (0.005) 15.61 (0.002) 15.61 (0.004) 15.62 (0.02) 15.61 15.61 (0.02)
z magnitude 15.67 (0.006) 15.69 (0.003) 15.64 (0.006) 15.70 (0.03) 15.69 15.68 (0.03)
G magnitude 15.57 (0.002) 15.59 15.59 15.57 15.57 (0.003) 15.59
BP magnitude 15.73 (0.002) 15.72 15.72
RP magnitude 15.28 (0.002) 15.29 15.29
Pan g magnitude 15.73 (0.004) 15.73 (0.004) 15.73 (0.004) 15.73 (0.004)
Pan r magnitude 15.62 (0.002) 15.62 (0.002) 15.62 (0.002) 15.62 (0.002)
Pan i magnitude 15.61 (0.002) 15.61 (0.002) 15.61 (0.002) 15.61 (0.002)
Pan z magnitude 15.69 (0.004) 15.69 (0.003) 15.69 (0.003) 15.69 (0.003)
Pan y magnitude 15.73 (0.007) 15.73 (0.006) 15.73 (0.006) 15.73 (0.006)
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.