EC 20132-7317

All names: WISE J201852.03-730836.2, WISEA J201852.04-730836.3, RAVE J201852.0-730836, UCAC2 1071763, EC 20132-7317, 2MASS J20185204-7308361, USNO-B1.0 0168-00331494, UCAC3 34-135664, TIC 261427146, Gaia DR2 6373765517765169792, UCAC4 085-062452, DENIS J201852.0-730836, PPMX J201852.0-730836, Gaia DR3 6373765522063060736, EC20132-7317

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 20 18 52.12 20 18 52.05 (0.3)
Declination -73 08 34.19 -73 08 36.05 (0.4)
Spectral type sdB+F2 F2+sd?
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] 3.85 (1) 2.65 (0.5)
Distance [pc] 259.85 (81) 377.29 (66)
Composition
Proper motion (right ascension) [mas/yr] -6.775 (2) -0.647 (0.4)
Proper motion (declination) [mas/yr] -14.853 (2) -16.303 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.50
V magnitude 12.19
R magnitude 12.19 (0.06)
I magnitude 11.62 (0.03)
J magnitude 11.33 (0.02) 11.33 (0.02)
H magnitude 11.10 (0.02) 11.10 (0.02)
K magnitude 11.04 (0.02) 11.04 (0.02)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 12.07 (0.0007) 12.12 (0.004)
BP magnitude 12.24 (0.004)
RP magnitude 11.73 (0.002)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.039

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

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.