PG 1104+022

All names: SDSS J110640.22+015451.4, PG 1104+022, 2MASS J11064021+0154513, Gaia DR2 3811454553720276224, TIC 301539111, Gaia DR3 3811454553720276224, LAMOST J110640.22+015451.3, PG1104+022, UCAC4 460-048487, [DWS97] Leo 1, SDSS J110640.22+015451.3, Gaia EDR3 3811454347561142912, WISE J110640.24+015451.2

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 11 06 35.99 (0.5) 11 06 40.22 11 06 40.22 (0.03)
Declination 01 53 09.84 (0.6) 01 54 51.31 01 54 51.32 (0.04)
Spectral type sdB sdB/sdO
Effective temperature [K] 25669.0 (370)
log(g) [cgs] 5.55 (0.04)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.25 (0.8) 0.76 (0.08) 0.71 (0.05)
Distance [pc] 235.52 (43) 1318.74 (139) 1407.66 (94)
Composition
Proper motion (right ascension) [mas/yr] -46.825 (0.6) -1.682 (0.1) -1.334 (0.04)
Proper motion (declination) [mas/yr] -19.469 (0.6) -2.274 (0.1) -2.287 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.59 (0.07)
V magnitude 14.77 (0.04)
R magnitude 15.09 (0.03)
I magnitude
J magnitude 15.16 (0.04) 15.16 (0.04)
H magnitude 15.29 (0.1) 15.29 (0.1)
K magnitude 14.88 15.42 (0.02)
u magnitude 14.39 (0.003)
g magnitude 14.43 (0.003)
r magnitude 14.91 (0.004)
i magnitude 15.25 (0.004)
z magnitude 15.56 (0.006)
G magnitude 19.95 (0.007) 14.72 (0.001) 14.70 (0.003)
BP magnitude 19.92 (0.06) 14.53 (0.009)
RP magnitude 19.54 (0.1) 14.92 (0.004)
Pan g magnitude 14.52 (0.009)
Pan r magnitude 14.92 (0.002)
Pan i magnitude 15.28 (0.003)
Pan z magnitude 15.53 (0.003)
Pan y magnitude 15.69 (0.006)
E(B-V) 0.026

* 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.