Feige 108

All names: NSV 26050, UBV M 43293, GEN# +6.10160433, PHL 433, PG 2313-021, Gaia DR2 2638589797971367936, TIC 301130845, FB 184, PG2313-021, FBS 2313-021, FS 32, GEN# +6.20001108, UCAC2 31258980, Gaia DR3 2638589797971367936, Feige 108, UBV 19897, 2MASS J23161241-0150350, Gaia EDR3 2638589797971367936, EGGR 157, GSC 05243-00817, uvby98 610160433, CSI-02-23136, GCRV 73935, JP11 5245

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 23 16 12.41 (0.06) 23 16 12.40 23 16 12.41 (0.06)
Declination -01 50 35.35 (0.04) -01 50 34.50 -01 50 35.10 (0.04)
Spectral type sdB sdB
Effective temperature [K] 34500.0 (1000)
log(g) [cgs] 6.01 (0.1)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.52 (0.06) 2.49 (0.1) 2.52 (0.06)
Distance [pc] 396.98 (9) 401.64 (16) 396.98 (9)
Composition
Proper motion (right ascension) [mas/yr] 0.031 (0.07) -0.157 (0.1) 0.031 (0.07)
Proper motion (declination) [mas/yr] -15.371 (0.05) -15.489 (0.1) -15.371 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.74 (0.0007)
V magnitude 12.97 (0.0007)
R magnitude 13.08 (0.0006)
I magnitude 13.22 (0.002)
J magnitude 13.53 (0.02) 13.53 (0.02)
H magnitude 13.70 (0.03) 13.70 (0.03)
K magnitude 13.78 (0.06) 13.78 (0.06)
u magnitude 13.00 (0.004)
g magnitude 12.85 (0.002)
r magnitude 13.24 (0.002)
i magnitude 13.76 (0.005)
z magnitude 14.74 (0.009)
G magnitude 12.98 (0.003) 13.00 (0.002) 12.98 (0.003)
BP magnitude 12.85 (0.005) 12.80 (0.01)
RP magnitude 13.23 (0.006) 13.24 (0.006)
Pan g magnitude 12.63
Pan r magnitude 13.12
Pan i magnitude 13.49
Pan z magnitude 13.80 (0.002)
Pan y magnitude 13.99 (0.003)
E(B-V) 0.042

* 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.