EC 21556-5552

All names: Gaia DR3 6412953971900940416, Gaia DR2 6412953971900940416, GALAH 140805003601207, SBC9 3346, TYC 8812-686-1, 2MASS J21590068-5538034, TIC 229805551, Gaia EDR3 6412953971900940416, EC21556-5552, EC 21556-5552

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 21 59 00.69 (0.02) 21 59 00.66 21 59 00.69 (0.02)
Declination -55 38 03.64 (0.02) -55 38 03.73 -55 38 03.71 (0.02)
Spectral type sdB sdB
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] 2.02 (0.03) 1.87 (0.05) 2.02 (0.03)
Distance [pc] 494.68 (8) 535.91 (15) 494.68 (8)
Composition
Proper motion (right ascension) [mas/yr] 2.018 (0.03) 2.119 (0.07) 2.018 (0.03)
Proper motion (declination) [mas/yr] 4.962 (0.03) 5.107 (0.08) 4.962 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.71 (0.2)
V magnitude 12.99 (0.2)
R magnitude
I magnitude
J magnitude 13.72 (0.03) 13.72 (0.03)
H magnitude 13.86 (0.05) 13.86 (0.05)
K magnitude 14.03 (0.06) 14.03 (0.06)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.10 (0.003) 13.12 (0.0006) 13.10 (0.003)
BP magnitude 12.97 (0.003) 12.91 (0.008)
RP magnitude 13.36 (0.004) 13.36 (0.002)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.014

* Constant surface field

Special notes:

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Absorption lines

Photometric filters

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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.