All names: Gaia DR3 3475928100784618880, EC12174-2632, 2MASS J12200453-2648397, Gaia DR2 3475928100784618880, GALEX J122004.5-264840, TIC 204671405, EC 12174-2632
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 12 20 04.51 | 12 20 04.54 (0.03) | ||
| Declination | -26 48 39.89 | -26 48 39.76 (0.02) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.83 (0.05) | 0.88 (0.03) | |
| Distance | [pc] | 1207.44 (78) | 1139.86 (44) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.997 (0.08) | -0.884 (0.04) | |
| Proper motion (declination) | [mas/yr] | 3.005 (0.07) | 3.152 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.01 | |||
| V magnitude | 15.09 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.03 (0.05) | 15.03 (0.05) | ||
| H magnitude | 14.60 (0.08) | 14.60 (0.08) | ||
| K magnitude | 14.75 (0.1) | 14.75 (0.1) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.08 (0.0006) | 15.06 (0.003) | ||
| BP magnitude | 14.95 (0.006) | |||
| RP magnitude | 15.13 (0.003) | |||
| Pan g magnitude | 14.99 (0.006) | |||
| Pan r magnitude | 15.27 (0.003) | |||
| Pan i magnitude | 15.48 (0.002) | |||
| Pan z magnitude | 15.61 (0.006) | |||
| Pan y magnitude | 15.67 (0.005) | |||
| E(B-V) | 0.046 | |||
* 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.