All names: GSC 08843-00281, Gaia DR1 4900109736826918016, 2MASS J00204109-6447380, TYC 8843-281-1, CPD-65 14, Gaia DR3 4900109741122939648, TIC 369965957, Gaia DR2 4900109741122939648, RAVE J002041.1-644738, EC00179-6503, PPM 775102
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 20 41.09 | 00 20 41.08 (0.009) | ||
| Declination | -64 47 38.37 | -64 47 37.92 (0.009) | ||
| Spectral type | sdO | sdO | ||
| 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] | 1.64 (0.02) | 1.63 (0.01) | |
| Distance | [pc] | 611.36 (9) | 612.33 (4) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.044 (0.04) | -2.927 (0.01) | |
| Proper motion (declination) | [mas/yr] | 8.436 (0.04) | 8.444 (0.01) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.43 (0.07) | |||
| V magnitude | 10.31 (0.01) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 8.48 (0.03) | 8.48 (0.03) | ||
| H magnitude | 7.92 (0.04) | 7.92 (0.04) | ||
| K magnitude | 7.80 (0.05) | 7.80 (0.05) | ||
| u magnitude | ||||
| g magnitude | 11.11 (0.01) | |||
| r magnitude | 10.11 (0.05) | |||
| i magnitude | 9.68 (0.03) | |||
| z magnitude | ||||
| G magnitude | 10.03 (0.0003) | 10.04 (0.003) | ||
| BP magnitude | 10.58 (0.001) | |||
| RP magnitude | 9.37 (0.001) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.012 | |||
* 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.