All names: CHSS 2994, PG 2352+181, UCAC4 542-148385, [TFW97] J235517.33+182015.45, LAMOST J235517.34+182015.3, Gaia DR3 2774038154361038976, Gaia DR2 2774038154361038976, UCAC2 38367991, PG2352+180, HIDDEN NAME PG 2352+180, 2MASS J23551733+1820152
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 55 17.24 | 23 55 17.34 (0.03) | ||
| Declination | 18 20 15.55 | 18 20 15.39 (0.02) | ||
| Spectral type | He-sdO | sdO7VIIHe40 | ||
| Effective temperature | [K] | 47080.0 (950) | ||
| log(g) | [cgs] | 5.44 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.13 (0.07) | 1.11 (0.04) | |
| Distance | [pc] | 883.55 (53) | 904.32 (33) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 28.964 (0.1) | 29.009 (0.05) | |
| Proper motion (declination) | [mas/yr] | -1.291 (0.07) | -1.316 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.12 (0.02) | |||
| V magnitude | 13.41 (0.03) | |||
| R magnitude | 13.61 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.97 (0.03) | 13.97 (0.03) | ||
| H magnitude | 14.12 (0.05) | 14.12 (0.05) | ||
| K magnitude | 14.18 (0.07) | 14.18 (0.07) | ||
| u magnitude | 12.73 (0.003) | |||
| g magnitude | ||||
| r magnitude | 13.56 (0.003) | |||
| i magnitude | 13.90 (0.003) | |||
| z magnitude | 14.21 (0.004) | |||
| G magnitude | 13.32 (0.0005) | 13.31 (0.003) | ||
| BP magnitude | 13.11 (0.006) | |||
| RP magnitude | 13.59 (0.001) | |||
| Pan g magnitude | 13.34 | |||
| Pan r magnitude | 13.58 (0.001) | |||
| Pan i magnitude | 13.93 (0.003) | |||
| Pan z magnitude | 14.20 (0.001) | |||
| Pan y magnitude | 14.38 (0.004) | |||
| E(B-V) | 0.043 | |||
* 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.