HE 0221-3250

All names: Gaia DR2 4970534594755662208, 2MASS J02235816-3236333, GALEX J022358.1-323632, TIC 146282446, Gaia EDR3 4970534594755662208, Gaia DR3 4970534594755662208, HE0221-3250, HE 0221-3250

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 02 23 58.20 (0.02) 02 23 58.15 02 23 58.18 (0.02)
Declination -32 36 33.87 (0.02) -32 36 32.60 -32 36 33.26 (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] 0.87 (0.03) 0.77 (0.05) 0.87 (0.03)
Distance [pc] 1154.20 (45) 1294.33 (79) 1154.20 (45)
Composition
Proper motion (right ascension) [mas/yr] 19.338 (0.02) 19.295 (0.04) 19.338 (0.02)
Proper motion (declination) [mas/yr] -38.123 (0.03) -37.792 (0.09) -38.123 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.25 (0.06) 15.25 (0.06)
H magnitude 15.38 (0.1) 15.38 (0.1)
K magnitude 15.36 (0.2) 15.36 (0.2)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.66 (0.003) 14.68 (0.0005) 14.66 (0.003)
BP magnitude 14.54 (0.003) 14.47 (0.006)
RP magnitude 14.90 (0.004) 14.89 (0.002)
Pan g magnitude 14.54
Pan r magnitude 14.96
Pan i magnitude 15.24 (0.002)
Pan z magnitude 15.56
Pan y magnitude 15.76
E(B-V) 0.013

* 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.