All names: GD 571, MCT2357-2221, PHL 612, Ton S 132, Gaia DR3 2340182479632226560, EC 23573-2221, 2MASS J23595718-2204504, Gaia EDR3 2340182479632226560, TIC 114807149, UCAC4 340-205834, UCAC2 23039674, Gaia DR2 2340182479632226560, GALEX J235957.1-220447, MCT 2357-2221
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 59 57.18 (0.04) | 23 59 57.13 | 23 59 57.17 (0.04) | ||
| Declination | -22 04 50.47 (0.04) | -22 04 50.26 | -22 04 50.33 (0.04) | ||
| Spectral type | sdO | sdO6He1 | |||
| 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] | 0.88 (0.06) | 0.79 (0.07) | 0.88 (0.06) | |
| Distance | [pc] | 1140.90 (72) | 1265.50 (109) | 1140.90 (72) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 9.031 (0.05) | 8.97 (0.1) | 9.031 (0.05) | |
| Proper motion (declination) | [mas/yr] | -8.617 (0.05) | -8.642 (0.08) | -8.617 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.73 (0.05) | ||||
| V magnitude | 15.02 (0.04) | ||||
| R magnitude | 15.35 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.77 (0.07) | 15.77 (0.07) | |||
| H magnitude | 15.60 (0.1) | 15.60 (0.1) | |||
| K magnitude | 15.65 (0.2) | 15.65 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.93 (0.003) | 14.95 (0.0006) | 14.93 (0.003) | ||
| BP magnitude | 14.77 (0.003) | 14.72 (0.008) | |||
| RP magnitude | 15.26 (0.004) | 15.26 (0.002) | |||
| Pan g magnitude | 14.76 (0.005) | ||||
| Pan r magnitude | 15.21 (0.004) | ||||
| Pan i magnitude | 15.59 (0.002) | ||||
| Pan z magnitude | 15.90 (0.005) | ||||
| Pan y magnitude | 16.08 (0.005) | ||||
| E(B-V) | 0.011 | ||||
* 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.