EC 20217-5704

All names: 2MASS J20254174-5654502, Gaia DR3 6468929937072637312, TIC 219974863, Gaia EDR3 6468929318596371840, Gaia DR2 6468929937072637312, EC20217-5704, TYC 8785-1877-1, EC 20217-5704, GALAH 170801004001314

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 20 25 54.47 (0.7) 20 25 41.80 20 25 41.73 (0.06)
Declination -56 54 03.50 (0.6) -56 54 49.72 -56 54 50.21 (0.05)
Spectral type sdOB sdOB
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.26 (0.9) 2.10 (0.1) 1.99 (0.08)
Distance [pc] 791.83 (537) 476.44 (27) 503.32 (21)
Composition
Proper motion (right ascension) [mas/yr] -5.118 (1) 11.79 (0.2) 11.898 (0.07)
Proper motion (declination) [mas/yr] -10.789 (0.8) -0.39 (0.1) -0.881 (0.07)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.17 (0.1)
V magnitude 12.73 (0.2)
R magnitude
I magnitude
J magnitude 12.54 (0.03) 12.54 (0.03)
H magnitude 12.27 (0.03) 12.27 (0.03)
K magnitude 12.21 (0.03) 12.21 (0.03)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 20.52 (0.009) 12.45 (0.0007) 12.43 (0.003)
BP magnitude 20.67 (0.1) 12.26 (0.01)
RP magnitude 19.82 (0.1) 12.61 (0.004)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.027

* 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.