LAMOST J034208.81+090220.7

All names: LAMOSTJ034208.81+090220.7, TIC 416806015, Gaia DR2 11963171843658240, Gaia DR3 11963171843658240, SDSS J034208.81+090220.7, GALEX J034208.8+090220, LAMOST J034208.81+090220.7, 2MASS J03420880+0902209

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 03 42 08.81 03 42 08.81 (0.04)
Declination 09 02 20.70 09 02 20.82 (0.03)
Spectral type sdOB sdO
Effective temperature [K] 40420.0 (2450)
log(g) [cgs] 5.28 (0.2)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.37 (0.09) 0.38 (0.05)
Distance [pc] 2724.05 (654) 2601.46 (319)
Composition
Proper motion (right ascension) [mas/yr] 1.561 (0.2) 1.585 (0.05)
Proper motion (declination) [mas/yr] -3.081 (0.1) -3.109 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 15.91
R magnitude
I magnitude
J magnitude 15.82 (0.08)
H magnitude 16.09 (0.2)
K magnitude
u magnitude 15.81 (0.006) 15.81
g magnitude 15.87 (0.004) 15.88
r magnitude 16.05 (0.005) 16.06
i magnitude 16.24 (0.005) 16.24
z magnitude 16.42 (0.009)
G magnitude 15.95 (0.0006) 15.94 (0.003)
BP magnitude 15.87 (0.004)
RP magnitude 15.93 (0.003)
Pan g magnitude 15.91 (0.003)
Pan r magnitude 16.08 (0.002)
Pan i magnitude 16.27 (0.004)
Pan z magnitude 16.43 (0.002)
Pan y magnitude 16.53 (0.005)
E(B-V) 0.225

* 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.