2QZ J215503.3-311255

All names: EC21521-3127, Gaia DR2 6616134404928953088, TIC 2028185736, Gaia EDR3 6616134404928953088, TIC 471015419, EC 21521-3127, 2QZ J215503.3-311255, Gaia DR3 6616134404928953088

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 21 55 03.39 (0.06) 21 55 03.39 21 55 03.37 (0.06)
Declination -31 12 55.96 (0.05) -31 12 55.19 -31 12 55.39 (0.05)
Spectral type He-sdO sdOHe
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] 0.55 (0.07) 0.55 (0.1) 0.55 (0.07)
Distance [pc] 1816.86 (245) 1829.16 (387) 1816.86 (245)
Composition
Proper motion (right ascension) [mas/yr] 12.827 (0.07) 12.847 (0.2) 12.827 (0.07)
Proper motion (declination) [mas/yr] -35.592 (0.07) -35.566 (0.1) -35.592 (0.07)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.64 (0.003) 16.67 (0.002) 16.64 (0.003)
BP magnitude 16.50 (0.005) 16.43 (0.01)
RP magnitude 16.96 (0.009) 16.95 (0.008)
Pan g magnitude
Pan r magnitude
Pan i magnitude 17.29 (0.006)
Pan z magnitude
Pan y magnitude
E(B-V) 0.018

* 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.