All names: Gaia DR3 1275699333816180992, GALEX J150616.2+291639, WISEA J150616.31+291639.5, GEN# +6.10070787, PG1504+295, USNO-B1.0 1192-00228963, Ton 787, UBV M 43171, WISE J150616.31+291639.7, PG 1504+295, SDSS J150616.30+291639.6, LAMOST J150616.30+291639.5, Gaia DR2 1275699333816180992
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 06 16.32 | 15 06 16.31 (0.02) | ||
| Declination | 29 16 40.14 | 29 16 39.72 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 23338.0 (318) | ||
| log(g) | [cgs] | 4.96 (0.01) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.18 (0.07) | 0.14 (0.05) | |
| Distance | [pc] | 5602.24 (2093) | 7117.44 (2599) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.486 (0.07) | -4.533 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.767 (0.1) | -5.606 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.10 | |||
| V magnitude | 16.36 | |||
| R magnitude | 16.50 | |||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 16.26 (0.006) | 16.26 (0.02) | ||
| g magnitude | 16.10 (0.004) | 16.12 (0.02) | ||
| r magnitude | 16.53 (0.005) | 16.53 (0.01) | ||
| i magnitude | 16.83 (0.006) | 16.82 (0.02) | ||
| z magnitude | 17.08 (0.01) | 17.08 (0.02) | ||
| G magnitude | 16.36 (0.0006) | 16.34 (0.003) | ||
| BP magnitude | 16.19 (0.004) | |||
| RP magnitude | 16.50 (0.002) | |||
| Pan g magnitude | 16.18 (0.003) | |||
| Pan r magnitude | 16.54 (0.003) | |||
| Pan i magnitude | 16.84 (0.002) | |||
| Pan z magnitude | 17.08 (0.005) | |||
| Pan y magnitude | 17.20 (0.01) | |||
| E(B-V) | 0.031 | |||
* 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.