All names: Ton S 151, UCAC2 18321731, GEN# +6.10160789, Gaia DR2 2316822015070026368, MCT 0016-3216, EC 00169-3216, Gaia EDR3 2316822015070026368, Gaia DR3 2316822015070026368, UBV M 43210, PHL 789, TIC 63696810, MCT0016-3216, GALEX J001924.5-315952, UCAC4 291-000349, 2MASS J00192454-3159527
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 19 24.56 (0.06) | 00 19 24.50 | 00 19 24.55 (0.06) | ||
| Declination | -31 59 52.86 (0.04) | -31 59 52.90 | -31 59 52.78 (0.04) | ||
| Spectral type | sdB | sdBHe1 | |||
| 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] | 0.68 (0.07) | 0.39 (0.1) | 0.68 (0.07) | |
| Distance | [pc] | 1475.80 (142) | 2576.66 (690) | 1475.80 (142) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 8.759 (0.06) | 9.559 (0.1) | 8.759 (0.06) | |
| Proper motion (declination) | [mas/yr] | -5.051 (0.05) | -4.49 (0.1) | -5.051 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.39 | ||||
| V magnitude | 15.72 | ||||
| R magnitude | 15.90 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.69 (0.06) | 15.69 (0.06) | |||
| H magnitude | 15.26 (0.09) | 15.26 (0.09) | |||
| K magnitude | 15.16 (0.1) | 15.16 (0.1) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.61 (0.003) | 15.62 (0.0008) | 15.61 (0.003) | ||
| BP magnitude | 15.50 (0.004) | 15.43 (0.008) | |||
| RP magnitude | 15.75 (0.005) | 15.75 (0.003) | |||
| Pan g magnitude | 15.79 | ||||
| Pan r magnitude | 15.86 (0.002) | ||||
| Pan i magnitude | 16.08 (0.004) | ||||
| Pan z magnitude | 16.14 | ||||
| Pan y magnitude | 16.19 | ||||
| E(B-V) | 0.006 | ||||
* 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.