All names: UCAC2 32538212, PG0953+024, TIC 262712269, Gaia DR2 3834806153469378304, HE 0952+0227, 2MASS J09553459+0212488, PG 0953+024, Gaia DR3 3834806153469378304, SDSS J095534.59+021248.6, SDSS J095534.58+021248.6, UCAC4 462-045537
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 55 34.67 | 09 55 34.59 (0.05) | ||
| Declination | 02 12 49.43 | 02 12 48.69 (0.04) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 46524.0 (1000) | ||
| log(g) | [cgs] | 5.75 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.40 (0.08) | 0.38 (0.05) | |
| Distance | [pc] | 2521.43 (504) | 2605.52 (368) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -16.155 (0.1) | -16.285 (0.06) | |
| Proper motion (declination) | [mas/yr] | -8.474 (0.1) | -8.436 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.79 (0.06) | |||
| V magnitude | 15.00 (0.05) | |||
| R magnitude | 15.49 (0.3) | |||
| I magnitude | ||||
| J magnitude | 15.84 (0.07) | 15.84 (0.07) | ||
| H magnitude | 15.56 (0.1) | 15.56 (0.1) | ||
| K magnitude | 15.30 | 15.90 (0.02) | ||
| u magnitude | 14.28 (0.003) | 14.30 (0.02) | ||
| g magnitude | 14.70 (0.003) | 14.73 (0.02) | ||
| r magnitude | 15.20 (0.004) | 15.19 (0.02) | ||
| i magnitude | 15.58 (0.004) | 15.56 (0.02) | ||
| z magnitude | 15.92 (0.008) | 15.92 (0.02) | ||
| G magnitude | 14.97 (0.001) | 14.95 (0.003) | ||
| BP magnitude | 14.71 (0.01) | |||
| RP magnitude | 15.27 (0.006) | |||
| Pan g magnitude | 14.80 (0.002) | |||
| Pan r magnitude | 15.23 (0.002) | |||
| Pan i magnitude | 15.60 (0.003) | |||
| Pan z magnitude | 15.89 (0.003) | |||
| Pan y magnitude | 16.09 (0.008) | |||
| E(B-V) | 0.027 | |||
* 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.