CHSS 1637

All names: Gaia EDR3 2534754359385331968, TIC 248349293, 2MASS J01090173-0011128, Gaia DR2 2534754359385331968, CHSS 1637, SDSS J010901.74-001112.7, SDSS J010901.73-001112.7, EPIC 220195136, Gaia DR3 2534754359385331968

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Stilism Simbad Eisenstein et al. 2006
Right ascension 01 09 01.75 (0.03) 01 09 01.75 01 09 01.75 (0.05) 01 09 01.74 (0.03) 01 09 01.74
Declination -00 11 12.86 (0.02) -00 11 12.79 -00 11 12.86 (0.03) -00 11 12.78 (0.02) -00 11 12.72
Spectral type sdA SD_auto
Effective temperature [K] 12293.0 (6)
log(g) [cgs] 5.00 (0.002)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.17 (0.04) 0.15 (0.06) 0.17 (0.04)
Distance [pc] 5723.70 (1283) 6729.48 (2518) 5724.10 (1284)
Composition
Proper motion (right ascension) [mas/yr] 12.29933971 (0.05) 12.244 (0.1) 12.299 (0.05) 2.0
Proper motion (declination) [mas/yr] -5.30278601 (0.03) -5.316 (0.06) -5.303 (0.03) -1.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.44 (0.04)
H magnitude 15.39 (0.1)
K magnitude 15.40 (0.2)
u magnitude 16.26 (0.006) 16.30 (0.006) 16.29 (0.03)
g magnitude 15.28 (0.004) 15.28 (0.004) 15.27 (0.03)
r magnitude 15.52 (0.005) 15.51 (0.004) 15.52 (0.01)
i magnitude 15.73 (0.005) 15.72 (0.005) 15.73 (0.02)
z magnitude 15.89 (0.007) 15.90 (0.007) 15.91 (0.02)
G magnitude 15.41 (0.001) 15.43 15.41 (0.003)
BP magnitude 15.41 (0.001) 15.41
RP magnitude 15.41 (0.003) 15.41
Pan g magnitude 15.30 (0.003)
Pan r magnitude 15.55 (0.002)
Pan i magnitude 15.75 (0.003)
Pan z magnitude 15.91 (0.003)
Pan y magnitude 15.94 (0.01)
E(B-V) 0.026

* 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.