UCAC4 201-192422

All names: Gaia DR2 6466786576593357440, EC 21281-5010, GALEX J213132.7-495707, Gaia DR3 6466786576593357440, UCAC4 201-192422, TIC 139723188, EC21281-5010, Gaia EDR3 6466786576593357440, 2MASS J21313267-4957091

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 21 31 32.68 (0.03) 21 31 32.71 21 31 32.68 (0.03)
Declination -49 57 09.12 (0.03) -49 57 09.04 -49 57 09.04 (0.03)
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] 0.72 (0.04) 0.66 (0.07) 0.72 (0.04)
Distance [pc] 1394.51 (81) 1518.37 (151) 1394.51 (81)
Composition
Proper motion (right ascension) [mas/yr] -2.042 (0.04) -2.193 (0.1) -2.042 (0.04)
Proper motion (declination) [mas/yr] -5.152 (0.03) -5.228 (0.09) -5.152 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.08 (0.06)
V magnitude 15.31 (0.01)
R magnitude 15.75 (0.06)
I magnitude
J magnitude 15.86 (0.09) 15.86 (0.09)
H magnitude 16.55
K magnitude 16.69
u magnitude
g magnitude 15.03 (0.01)
r magnitude 15.49 (0.02)
i magnitude
z magnitude
G magnitude 15.25 (0.003) 15.27 (0.001) 15.25 (0.003)
BP magnitude 15.10 (0.004) 15.03 (0.01)
RP magnitude 15.56 (0.005) 15.55 (0.004)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.015

* Constant surface field

Special notes:

Spectra

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Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit




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.