All names: SB 774, WISE J015311.16-390418.5, HE 0151-3919, EC 01510-3919, TIC 115356770, GALEX J015311.1-390419, 2MASS J01531117-3904181, CSI-39-01511, uvby98 620021774, EC01510-3919, WISEA J015311.18-390418.6, UCAC4 255-001835, Gaia DR3 4961253720183453184, Gaia DR2 4961253720183453184, UCAC2 14967770
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 01 53 11.20 | 01 53 11.19 (0.02) | ||
| Declination | -39 04 18.00 | -39 04 18.24 (0.02) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 20841.0 (500) | ||
| log(g) | [cgs] | 4.83 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.59 (0.04) | 0.62 (0.03) | |
| Distance | [pc] | 1699.52 (114) | 1602.56 (71) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.534 (0.04) | -4.596 (0.02) | |
| Proper motion (declination) | [mas/yr] | -44.402 (0.05) | -44.367 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.13 (0.05) | |||
| V magnitude | 14.29 (0.02) | |||
| R magnitude | 14.51 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.85 (0.03) | 14.85 (0.03) | ||
| H magnitude | 14.79 (0.07) | 14.79 (0.07) | ||
| K magnitude | 15.09 (0.1) | 15.09 (0.1) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.29 (0.0004) | 14.27 (0.003) | ||
| BP magnitude | 14.11 (0.004) | |||
| RP magnitude | 14.48 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.009 | |||
* 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.