All names: UCAC2 14319979, 2MASS J21580196-4128497, Gaia EDR3 6571723863269606528, GALEX J215802.0-412848, TIC 2027508790, Gaia DR3 6571723863269606528, BPS CS 22881-0007, TIC 197687846, HE 2154-4143, Gaia DR2 6571723863269606528, HE2154-4143, UCAC4 243-191620
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 58 02.01 (0.03) | 21 58 01.97 | 21 58 02.00 (0.03) | ||
| Declination | -41 28 50.03 (0.02) | -41 28 49.69 | -41 28 49.89 (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] | 0.81 (0.04) | 0.83 (0.06) | 0.81 (0.04) | |
| Distance | [pc] | 1232.29 (58) | 1203.51 (84) | 1232.29 (58) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.701 (0.03) | 4.634 (0.07) | 4.701 (0.03) | |
| Proper motion (declination) | [mas/yr] | -9.048 (0.03) | -8.958 (0.08) | -9.048 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.95 (0.01) | ||||
| V magnitude | 15.15 (0.02) | ||||
| R magnitude | 15.53 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 15.54 (0.06) | 15.54 (0.06) | |||
| H magnitude | 15.32 (0.1) | 15.32 (0.1) | |||
| K magnitude | 15.43 (0.2) | 15.43 (0.2) | |||
| u magnitude | |||||
| g magnitude | 14.93 (0.01) | ||||
| r magnitude | 15.38 (0.05) | ||||
| i magnitude | 15.52 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 15.15 (0.003) | 15.17 (0.0008) | 15.15 (0.003) | ||
| BP magnitude | 15.00 (0.003) | 14.95 (0.008) | |||
| RP magnitude | 15.39 (0.005) | 15.38 (0.006) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.013 | ||||
* 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.