All names: UCAC4 671-058919, Gaia DR2 1393813545792191360, 2MASS J15100037+4408040, CBS 230, WISE J151000.36+440803.6, FBS B 346, SDSS J151000.36+440803.9, FBS 1508+443, GALEX J151000.4+440804, PG 1508+443, PG1508+443, UCAC2 46956892, Gaia EDR3 1393813713295834752, TIC 233641322, Gaia DR3 1393813545792191360, WISEA J151000.35+440803.6
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 09 58.77 (0.5) | 15 10 00.45 | 15 10 00.37 (0.03) | ||
| Declination | 44 09 23.96 (0.5) | 44 08 04.57 | 44 08 03.94 (0.03) | ||
| Spectral type | sdOB | sdOB | |||
| 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] | 1.57 (0.6) | 0.57 (0.04) | 0.47 (0.03) | |
| Distance | [pc] | 635.28 (231) | 1740.64 (121) | 2144.08 (157) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -10.474 (0.6) | -18.199 (0.06) | -17.954 (0.03) | |
| Proper motion (declination) | [mas/yr] | -17.261 (0.9) | -14.363 (0.09) | -14.37 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.74 (0.01) | ||||
| V magnitude | 14.99 (0.02) | ||||
| R magnitude | 15.45 (0.09) | ||||
| I magnitude | |||||
| J magnitude | 15.68 (0.08) | 15.68 (0.08) | |||
| H magnitude | 15.83 (0.2) | 15.83 (0.2) | |||
| K magnitude | 15.20 | ||||
| u magnitude | 14.28 (0.004) | 14.28 (0.004) | |||
| g magnitude | 14.67 (0.003) | 14.67 (0.003) | |||
| r magnitude | 15.19 (0.004) | 15.19 (0.004) | |||
| i magnitude | 15.56 (0.004) | 15.56 (0.004) | |||
| z magnitude | 15.88 (0.007) | 15.88 (0.007) | |||
| G magnitude | 20.48 (0.007) | 14.96 (0.0006) | 14.94 (0.003) | ||
| BP magnitude | 20.44 (0.07) | 14.69 (0.01) | |||
| RP magnitude | 20.43 (0.1) | 15.25 (0.003) | |||
| Pan g magnitude | 14.77 (0.002) | ||||
| Pan r magnitude | 15.22 (0.005) | ||||
| Pan i magnitude | 15.59 (0.003) | ||||
| Pan z magnitude | 15.88 (0.005) | ||||
| Pan y magnitude | 16.08 (0.006) | ||||
| E(B-V) | 0.022 | ||||
* 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.