All names: TIC 255859234, UCAC4 596-054030, PG1539+292, GALEX J154124.9+290130, WISE J154124.95+290130.4, Gaia DR2 1224827748294596352, WISEA J154124.94+290130.4, LAMOST J154124.97+290130.1, Gaia DR3 1224827748294596352, SDSS J154124.94+290130.4, 2MASS J15412495+2901304, PG 1539+292, SDSS J154124.95+290130.4, UCAC2 42069986
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 41 24.99 | 15 41 24.95 (0.01) | ||
| Declination | 29 01 30.52 | 29 01 30.47 (0.02) | ||
| Spectral type | sdB+K3 | 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] | 0.70 (0.03) | 0.64 (0.02) | |
| Distance | [pc] | 1435.13 (52) | 1555.21 (56) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -8.89 (0.03) | -8.536 (0.02) | |
| Proper motion (declination) | [mas/yr] | -1.287 (0.05) | -1.296 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.74 (0.1) | |||
| V magnitude | 14.63 (0.1) | |||
| R magnitude | 14.88 (0.2) | |||
| I magnitude | ||||
| J magnitude | 14.19 (0.03) | 14.19 (0.03) | ||
| H magnitude | 13.99 (0.04) | 13.99 (0.04) | ||
| K magnitude | 13.95 (0.07) | 13.95 (0.07) | ||
| u magnitude | 14.59 (0.004) | 14.59 (0.004) | ||
| g magnitude | 14.54 (0.003) | 14.54 (0.003) | ||
| r magnitude | 14.65 (0.004) | 14.65 (0.004) | ||
| i magnitude | 14.72 (0.005) | 14.72 (0.005) | ||
| z magnitude | 14.79 (0.005) | 14.79 (0.005) | ||
| G magnitude | 14.55 (0.0005) | 14.53 (0.003) | ||
| BP magnitude | 14.56 (0.004) | |||
| RP magnitude | 14.40 (0.001) | |||
| Pan g magnitude | 14.59 (0.003) | |||
| Pan r magnitude | 14.66 (0.003) | |||
| Pan i magnitude | 14.72 (0.003) | |||
| Pan z magnitude | 14.81 (0.002) | |||
| Pan y magnitude | 14.85 (0.005) | |||
| E(B-V) | 0.030 | |||
* 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.