GD 108

All names: GD 108, PG0958-073, TIC 33321190, GSC 05476-00372, Gaia DR2 3772994667772794112, UBV M 43047, [TFW97] J100047.27-073330.77, PG 0958-073, GALEX J100047.1-073330, 2MASS J10004725-0733310, GEN# +6.10060108, Gaia EDR3 3772994667772794112, SBC9 3327, Gaia DR3 3772994667772794112

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 10 00 47.20 (0.03) 10 00 47.36 10 00 47.25 (0.03)
Declination -07 33 30.81 (0.03) -07 33 30.50 -07 33 30.77 (0.03)
Spectral type sdB+WD sdB
Effective temperature [K] 26100.0 (500)
log(g) [cgs] 5.58 (0.05)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.90 (0.03) 1.91 (0.06) 1.90 (0.03)
Distance [pc] 527.18 (9) 523.40 (16) 527.18 (9)
Composition
Proper motion (right ascension) [mas/yr] -42.395 (0.04) -42.368 (0.09) -42.395 (0.04)
Proper motion (declination) [mas/yr] -2.079 (0.03) -1.876 (0.09) -2.079 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.35 (0.003)
V magnitude 13.56 (0.003)
R magnitude 13.66 (0.003)
I magnitude 13.78 (0.0007)
J magnitude 14.10 (0.03) 14.10 (0.03)
H magnitude 14.14 (0.04) 14.14 (0.04)
K magnitude 14.26 (0.09) 14.26 (0.09)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.53 (0.003) 13.55 (0.0006) 13.53 (0.003)
BP magnitude 13.42 (0.003) 13.37 (0.009)
RP magnitude 13.76 (0.004) 13.76 (0.001)
Pan g magnitude 13.40
Pan r magnitude 13.75 (0.001)
Pan i magnitude 14.11 (0.006)
Pan z magnitude 14.37 (0.003)
Pan y magnitude 14.51 (0.006)
E(B-V) 0.033

* 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.