All names: UCAC2 30553465, SDSS J162836.15-033238.2, PG1625-034, TIC 72225269, GALEX J162836.1-033237, Gaia DR3 4357576103723153792, 2MASS J16283615-0332382, PG 1625-034, BPS CS 22872-0105, UCAC4 433-066401, Gaia DR2 4357576103723153792
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 28 36.19 | 16 28 36.17 (0.04) | ||
| Declination | -03 32 37.96 | -03 32 38.20 (0.02) | ||
| Spectral type | He-sdO | sdO8VIIHe39 | ||
| 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] | 0.53 (0.08) | 0.57 (0.04) | |
| Distance | [pc] | 1899.70 (301) | 1768.03 (132) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.404 (0.2) | -5.364 (0.05) | |
| Proper motion (declination) | [mas/yr] | -0.027 (0.08) | 0.091 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.48 | |||
| V magnitude | 15.61 | |||
| R magnitude | 15.61 (0.3) | |||
| I magnitude | ||||
| J magnitude | 15.76 (0.07) | 15.76 (0.07) | ||
| H magnitude | 15.88 (0.2) | 15.88 (0.2) | ||
| K magnitude | 15.79 (0.3) | 15.79 (0.3) | ||
| u magnitude | 15.18 (0.004) | |||
| g magnitude | 15.36 (0.003) | |||
| r magnitude | 15.64 (0.004) | |||
| i magnitude | 15.88 (0.004) | |||
| z magnitude | 16.08 (0.007) | |||
| G magnitude | 15.51 (0.0006) | 15.49 (0.003) | ||
| BP magnitude | 15.36 (0.009) | |||
| RP magnitude | 15.57 (0.003) | |||
| Pan g magnitude | 15.43 (0.005) | |||
| Pan r magnitude | 15.67 (0.003) | |||
| Pan i magnitude | 15.92 (0.001) | |||
| Pan z magnitude | 16.11 (0.004) | |||
| Pan y magnitude | 16.25 (0.005) | |||
| E(B-V) | 0.180 | |||
* 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.