All names: Gaia DR2 394991241522199040, Gaia DR3 394991241522199040, UCAC4 707-002474, LAMOSTJ001655.34+511349.7, ATO J004.2305+51.2304, 2MASS J00165536+5113497, LAMOST J001655.33+511349.7
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 16 55.33 | 00 16 55.34 (0.03) | ||
| Declination | 51 13 49.75 | 51 13 49.76 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 32770.0 (460) | ||
| log(g) | [cgs] | 5.48 (0.07) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.49 (0.08) | 0.47 (0.05) | |
| Distance | [pc] | 2031.69 (342) | 2135.84 (212) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -6.654 (0.1) | -6.618 (0.04) | |
| Proper motion (declination) | [mas/yr] | -0.461 (0.08) | -0.653 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.43 (0.1) | 16.43 (0.1) | ||
| H magnitude | 16.58 | |||
| K magnitude | 17.24 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.36 (0.004) | 16.33 (0.004) | ||
| BP magnitude | 16.22 (0.01) | |||
| RP magnitude | 16.44 (0.02) | |||
| Pan g magnitude | 16.18 (0.02) | |||
| Pan r magnitude | 16.49 (0.02) | |||
| Pan i magnitude | 16.87 (0.006) | |||
| Pan z magnitude | 16.95 (0.01) | |||
| Pan y magnitude | 17.18 (0.02) | |||
| E(B-V) | 0.139 | |||
* 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.