LB 1766

All names: LB 1766, TYC 8510-1579-1, Gaia DR2 4782839331302068224, TIC 220459208, Gaia EDR3 4782839331302068224, Gaia DR3 4782839331302068224, GALEX J045918.8-535251, uvby98 600001766, 2MASS J04591878-5352547, EC04582-5357, GEN# +6.00001766, EC 04582-5357

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 04 59 18.81 (0.03) 04 59 18.79 04 59 18.78 (0.03)
Declination -53 52 54.04 (0.04) -53 52 55.27 -53 52 54.59 (0.04)
Spectral type sd sdBHe
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] 2.43 (0.04) 2.51 (0.03) 2.43 (0.04)
Distance [pc] 412.18 (6) 398.31 (5) 412.18 (6)
Composition
Proper motion (right ascension) [mas/yr] 13.459 (0.04) 13.114 (0.06) 13.459 (0.04)
Proper motion (declination) [mas/yr] 34.959 (0.06) 34.707 (0.09) 34.959 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.25 (0.1)
V magnitude 12.91 (0.2)
R magnitude
I magnitude
J magnitude 13.06 (0.03) 13.06 (0.03)
H magnitude 13.18 (0.03) 13.18 (0.03)
K magnitude 13.25 (0.04) 13.25 (0.04)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 12.28 (0.003) 12.30 (0.0005) 12.28 (0.003)
BP magnitude 12.12 (0.003) 12.05 (0.008)
RP magnitude 12.60 (0.004) 12.60 (0.002)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.011

* 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.