Ton 180

All names: UCAC4 589-050892, Gaia DR2 1450983271353426048, TIC 28171371, GALEX J140117.2+273842, PG1359+279, Gaia DR3 1450983271353426048, SDSS J140117.21+273841.7, SDSS J140117.21+273841.79, 2MASS J14011720+2738419, SDSS J140117.20+273841.7, Ton 180, PG 1359+279, Gaia EDR3 1450983271353426048, LAMOST J140117.20+273841.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Geier 2020 Gaia DR2 Stilism Kepler et al. 2016 Simbad
Right ascension 14 01 17.21 (0.03) 14 01 17.21 14 01 17.21 14 01 17.21 (0.03) 14 01 17.21 (0.03)
Declination 27 38 41.72 (0.02) 27 38 41.79 27 38 42.33 27 38 41.73 (0.03) 27 38 41.86 (0.02)
Spectral type sdB+MS sdB sdOB+F2V
Effective temperature [K] 28842.0 (202)
log(g) [cgs] 5.03 (0.04)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.28 (0.04) 0.24 (0.05) 0.24 (0.05) 0.28 (0.04)
Distance [pc] 3576.46 (534) 4192.87 (814) 4192.87 (814) 3576.54 (533)
Composition
Proper motion (right ascension) [mas/yr] -1.810781022 (0.04) -1.937 (0.07) -1.937 (0.07) -1.811 (0.04)
Proper motion (declination) [mas/yr] -8.363436571 (0.03) -8.324 (0.07) -8.324 (0.07) -8.363 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.15 (0.06)
V magnitude 16.20 (0.01)
R magnitude 16.15 (0.09)
I magnitude
J magnitude 15.56 (0.06) 15.56 (0.06)
H magnitude 15.35 (0.1) 15.35 (0.1)
K magnitude 15.03
u magnitude 16.26 (0.006) 16.26 (0.006) 16.28 (0.02) 16.26 (0.006)
g magnitude 16.00 (0.003) 16.01 (0.003) 16.04 (0.01) 16.01 (0.003)
r magnitude 16.10 (0.004) 16.11 (0.004) 16.11 (0.02) 16.11 (0.004)
i magnitude 16.17 (0.004) 16.18 (0.004) 16.18 (0.01) 16.18 (0.004)
z magnitude 16.23 (0.008) 16.24 (0.008) 16.24 (0.02) 16.24 (0.008)
G magnitude 15.99 (0.002) 16.01 (0.0008) 16.01 15.99 (0.003)
BP magnitude 16.06 (0.002) 16.03 (0.006) 16.03
RP magnitude 15.83 (0.002) 15.83 (0.003) 15.83
Pan g magnitude 16.03 (0.004) 16.03 (0.004)
Pan r magnitude 16.09 (0.004) 16.09 (0.004)
Pan i magnitude 16.17 (0.002) 16.16 (0.002)
Pan z magnitude 16.24 (0.002) 16.24 (0.002)
Pan y magnitude 16.28 (0.006) 16.29 (0.006)
E(B-V) 0.019

* 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.