All names: Gaia DR3 1306828397780993152, TIC 236753134, SDSS J170014.12+271237.3, PG 1658+273, PG1658+273, 2MASS J17001413+2712367, GALEX J170014.1+271237, Gaia DR2 1306828397780993152, UCAC4 587-055135
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 00 14.23 | 17 00 14.12 (0.02) | ||
| Declination | 27 12 37.32 | 27 12 37.30 (0.03) | ||
| Spectral type | He-sdO | sdOC9.5VIIHe39 | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.38 (0.05) | 0.47 (0.04) | |
| Distance | [pc] | 2632.96 (347) | 2146.84 (165) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.154 (0.07) | -5.267 (0.04) | |
| Proper motion (declination) | [mas/yr] | -4.863 (0.08) | -4.948 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.75 (0.09) | |||
| V magnitude | 15.85 (0.2) | |||
| R magnitude | 16.12 (0.1) | |||
| I magnitude | ||||
| J magnitude | 16.66 (0.1) | 16.66 (0.1) | ||
| H magnitude | 16.36 (0.2) | 16.36 (0.2) | ||
| K magnitude | 15.87 | |||
| u magnitude | 15.48 (0.005) | |||
| g magnitude | 15.74 (0.004) | 15.74 (0) | ||
| r magnitude | 16.16 (0.005) | 15.99 (0.2) | ||
| i magnitude | 16.48 (0.005) | |||
| z magnitude | 16.80 (0.01) | |||
| G magnitude | 15.99 (0.001) | 15.97 (0.003) | ||
| BP magnitude | 15.80 (0.007) | |||
| RP magnitude | 16.18 (0.004) | |||
| Pan g magnitude | 15.83 (0.002) | |||
| Pan r magnitude | 16.18 (0.005) | |||
| Pan i magnitude | 16.51 (0.002) | |||
| Pan z magnitude | 16.78 (0.004) | |||
| Pan y magnitude | 16.96 (0.007) | |||
| E(B-V) | 0.029 | |||
* 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.