All names: Gaia DR3 1198927755470384128, [TFW97] J160954.93+171457.07, LAMOSTJ160954.92+171457.1, TIC 157152066, PG 1607+174, 2MASS J16095493+1714572, TYC 1508-334-1, Gaia DR2 1198927755470384128, LAMOST J160954.92+171457.1
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 09 54.93 | 16 09 54.93 (0.04) | ||
| Declination | 17 14 57.18 | 17 14 57.17 (0.03) | ||
| Spectral type | He-sdB | sdB2VIIHe18 | ||
| Effective temperature | [K] | 30372.0 (222) | ||
| log(g) | [cgs] | 5.08 (0.03) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.77 (0.06) | 1.58 (0.05) | |
| Distance | [pc] | 565.96 (19) | 632.59 (20) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.946 (0.08) | -4.936 (0.04) | |
| Proper motion (declination) | [mas/yr] | -11.76 (0.07) | -11.744 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.80 (0.1) | |||
| V magnitude | 11.64 (0.1) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 12.77 (0.02) | 12.77 (0.02) | ||
| H magnitude | 12.91 (0.02) | 12.91 (0.02) | ||
| K magnitude | 12.98 (0.03) | 12.98 (0.03) | ||
| u magnitude | 14.20 (0.01) | |||
| g magnitude | 12.08 (0.001) | |||
| r magnitude | 12.55 (0.001) | |||
| i magnitude | 12.89 (0.001) | |||
| z magnitude | 13.59 (0.006) | |||
| G magnitude | 12.22 (0.0005) | 12.20 (0.003) | ||
| BP magnitude | 12.03 (0.008) | |||
| RP magnitude | 12.45 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | 12.72 (0.001) | |||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | 13.22 (0.002) | |||
| E(B-V) | 0.045 | |||
* 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.