All names: MCT2357-2221, Gaia DR2 2340182479632226560, MCT 2357-2221, GD 571, Ton S 132, UCAC4 340-205834, TIC 114807149, EC 23573-2221, 2MASS J23595718-2204504, Gaia EDR3 2340182479632226560, Gaia DR3 2340182479632226560, PHL 612, UCAC2 23039674, GALEX J235957.1-220447
| 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.