All names: FB 57, Gaia DR2 1021648582279419648, PG0934+553, PG 0934+553, HIP 47296, HIC 47296, GSC 03810-01604, LAMOST J093820.35+550550.0, LAMOST J093820.37+550550.8, TD1 32710, 2MASS J09382033+5505500, Gaia DR3 1021648582279419648, GD 299, TYC 3810-1604-1, PG 0934+554, [TFW97] J093820.33+550550.76, UCAC4 726-046051, GEN# +6.10060299, SBSS 0934+553, UBV M 43058, GALEX J093820.7+550548, GSC 03810-01309, TIC 459789155
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 38 20.34 | 09 38 20.35 (0.03) | ||
| Declination | 55 05 53.22 | 55 05 50.09 (0.03) | ||
| Spectral type | sdOB | sdOHe | ||
| Effective temperature | [K] | 44340.0 (350) | ||
| log(g) | [cgs] | 5.37 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 2.14 (0.06) | 2.22 (0.05) | |
| Distance | [pc] | 467.99 (14) | 451.45 (9) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.167 (0.09) | -0.284 (0.04) | |
| Proper motion (declination) | [mas/yr] | -67.714 (0.08) | -67.736 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.82 (0.003) | |||
| V magnitude | 12.09 (0.003) | |||
| R magnitude | 12.18 (0.002) | |||
| I magnitude | 12.26 (0.002) | |||
| J magnitude | 12.30 (0.02) | 12.30 (0.02) | ||
| H magnitude | 12.15 (0.03) | 12.15 (0.03) | ||
| K magnitude | 12.14 (0.02) | 12.14 (0.02) | ||
| u magnitude | 12.97 (0.004) | |||
| g magnitude | 12.15 (0.001) | 11.87 (0.01) | ||
| r magnitude | 12.44 (0.002) | 12.21 (0.01) | ||
| i magnitude | 12.72 (0.002) | 12.49 (0.01) | ||
| z magnitude | 13.33 (0.005) | |||
| G magnitude | 12.03 (0.0006) | 12.01 (0.003) | ||
| BP magnitude | 11.82 (0.008) | |||
| RP magnitude | 12.23 (0.002) | |||
| Pan g magnitude | 12.74 | |||
| Pan r magnitude | 12.74 | |||
| Pan i magnitude | 12.83 | |||
| Pan z magnitude | 12.94 | |||
| Pan y magnitude | 12.93 (0.007) | |||
| E(B-V) | 0.025 | |||
* Constant surface field
Spectra without link are available upon request
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.