All names: 2MASS J03001783-2146305, HE0258-2158, HE 0258-2158, Gaia DR2 5079504821360594944, TIC 71345281, Gaia DR3 5079504821360594944
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 03 00 17.80 | 03 00 17.82 (0.03) | ||
| Declination | -21 46 31.19 | -21 46 30.68 (0.03) | ||
| 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] | 0.61 (0.05) | 0.62 (0.04) | |
| Distance | [pc] | 1646.36 (133) | 1625.49 (98) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 5.052 (0.09) | 5.165 (0.04) | |
| Proper motion (declination) | [mas/yr] | -1.537 (0.09) | -1.266 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | 14.65 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.18 (0.05) | 15.18 (0.05) | ||
| H magnitude | 15.31 (0.1) | 15.31 (0.1) | ||
| K magnitude | 15.18 (0.2) | 15.18 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.63 (0.0005) | 14.61 (0.003) | ||
| BP magnitude | 14.45 (0.007) | |||
| RP magnitude | 14.82 (0.006) | |||
| Pan g magnitude | 14.50 (0.003) | |||
| Pan r magnitude | 14.85 (0.002) | |||
| Pan i magnitude | 15.19 (0.003) | |||
| Pan z magnitude | 15.44 (0.003) | |||
| Pan y magnitude | 15.59 (0.007) | |||
| E(B-V) | 0.015 | |||
* 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.