LS 1274

All names: Gaia DR2 5306775455393745024, TYC 8591-689-1, 2MASS J09185601-5704254, Gaia DR3 5306775455393745024, TIC 386653873, CSI-56-09175, LSS1274, ALS 1274, LS 1274, uvby98 610001274, UCAC4 165-027840

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 09 18 56.05 09 18 56.01 (0.03)
Declination -57 04 25.73 -57 04 25.42 (0.03)
Spectral type He-sdO sdO8VIHe39
Effective temperature [K] 44500.0 (1000)
log(g) [cgs] 5.55 (0.1)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.46 (0.04) 1.47 (0.03)
Distance [pc] 684.09 (19) 682.08 (15)
Composition
Proper motion (right ascension) [mas/yr] -0.846 (0.08) -0.788 (0.04)
Proper motion (declination) [mas/yr] -6.461 (0.07) -6.4 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.46 (0.2)
V magnitude 12.38 (0.2)
R magnitude 13.10 (0.1)
I magnitude
J magnitude 13.34 (0.02) 13.34 (0.02)
H magnitude 13.52 (0.04) 13.52 (0.04)
K magnitude 13.52 (0.04) 13.52 (0.04)
u magnitude
g magnitude 12.73 (0.01)
r magnitude 13.11 (0.01)
i magnitude
z magnitude
G magnitude 12.86 (0.0006) 12.84 (0.003)
BP magnitude 12.67 (0.006)
RP magnitude 13.05 (0.001)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.102

* 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.