All names: SDSS J165957.66+285053.9, Gaia DR2 1308678016856993920, LAMOST J165957.67+285053.9, UCAC4 595-056068, SDSSJ165957.67+285054.0, Gaia EDR3 1308678016856993920, Gaia DR3 1308678016856993920, GALEX J165957.7+285055, 2MASS J16595766+2850538
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 59 57.67 (0.02) | 16 59 57.67 | 16 59 57.67 (0.02) | ||
| Declination | 28 50 53.99 (0.02) | 28 50 54.00 | 28 50 54.00 (0.02) | ||
| Spectral type | sdOB | sdO | |||
| Effective temperature | [K] | 39473.0 (2000) | |||
| log(g) | [cgs] | 5.46 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.89 (0.03) | 0.83 (0.04) | 0.89 (0.03) | |
| Distance | [pc] | 1123.97 (36) | 1200.77 (57) | 1123.97 (36) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.27 (0.03) | 4.172 (0.06) | 4.27 (0.03) | |
| Proper motion (declination) | [mas/yr] | -0.538 (0.03) | -0.505 (0.08) | -0.538 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.12 (0.02) | ||||
| V magnitude | 14.39 (0.08) | ||||
| R magnitude | 14.75 (0.09) | ||||
| I magnitude | |||||
| J magnitude | 14.99 (0.04) | 14.99 (0.04) | |||
| H magnitude | 15.24 (0.08) | 15.24 (0.08) | |||
| K magnitude | 15.16 (0.2) | 15.16 (0.2) | |||
| u magnitude | 13.82 (0.004) | 13.82 (0.004) | |||
| g magnitude | 14.14 (0.08) | ||||
| r magnitude | 14.62 (0.004) | 14.62 (0.004) | |||
| i magnitude | 15.01 (0.01) | ||||
| z magnitude | 15.28 (0.006) | 15.28 (0.006) | |||
| G magnitude | 14.37 (0.003) | 14.39 (0.0006) | 14.37 (0.003) | ||
| BP magnitude | 14.22 (0.003) | 14.16 (0.008) | |||
| RP magnitude | 14.66 (0.004) | 14.65 (0.002) | |||
| Pan g magnitude | 14.20 (0.003) | ||||
| Pan r magnitude | 14.64 (0.005) | ||||
| Pan i magnitude | 14.99 (0.003) | ||||
| Pan z magnitude | 15.27 (0.002) | ||||
| Pan y magnitude | 15.46 (0.004) | ||||
| E(B-V) | 0.027 | ||||
* 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.