All names: TIC 241009652, HE 2150-0238, HE2150-0238, 2MASS J21523551-0224294, USNO-B1.0 0875-00785115, SDSS J215235.51-022429.5, GALEX J215235.4-022428, Gaia EDR3 2673674217581020672, Gaia DR2 2673674217581020672, Gaia DR3 2673674217581020672
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 52 35.52 (0.06) | 21 52 35.80 | 21 52 35.51 (0.06) | ||
| Declination | -02 24 29.60 (0.05) | -02 24 31.60 | -02 24 29.52 (0.05) | ||
| Spectral type | sdB+MS | sdB | |||
| Effective temperature | [K] | 29846.0 (500) | |||
| log(g) | [cgs] | 5.90 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.85 (0.06) | 0.90 (0.1) | 0.85 (0.06) | |
| Distance | [pc] | 1175.64 (89) | 1115.20 (122) | 1175.64 (89) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.838 (0.06) | 5.031 (0.2) | 4.838 (0.06) | |
| Proper motion (declination) | [mas/yr] | -4.54 (0.06) | -4.64 (0.2) | -4.54 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.80 | ||||
| V magnitude | |||||
| R magnitude | 16.20 | ||||
| I magnitude | |||||
| J magnitude | 16.47 (0.1) | 16.47 (0.1) | |||
| H magnitude | 16.19 | ||||
| K magnitude | 15.67 | ||||
| u magnitude | 15.74 (0.005) | ||||
| g magnitude | 15.86 (0.003) | ||||
| r magnitude | 16.25 (0.004) | ||||
| i magnitude | 16.56 (0.004) | ||||
| z magnitude | 16.83 (0.01) | ||||
| G magnitude | 16.08 (0.003) | 16.11 (0.002) | 16.08 (0.003) | ||
| BP magnitude | 15.98 (0.006) | 15.93 (0.004) | |||
| RP magnitude | 16.28 (0.008) | 16.25 (0.02) | |||
| Pan g magnitude | 15.93 (0.004) | ||||
| Pan r magnitude | 16.30 (0.006) | ||||
| Pan i magnitude | 16.60 (0.003) | ||||
| Pan z magnitude | 16.84 (0.005) | ||||
| Pan y magnitude | 17.00 (0.005) | ||||
| E(B-V) | 0.074 | ||||
* 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.