All names: UCAC4 536-151385, Gaia DR2 2773334982315549824, UCAC3 215-334670, WDS J23553+1709A, Gaia DR3 2773334982315549824, SDSS J235515.47+170830.9, USNO-B1.0 1071-00716415, ** GWP 3371A, GALEX J235515.4+170829
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 23 55 15.44 (0.05) | |
| Declination | 17 08 30.99 (0.04) | |
| Spectral type | DB | |
| 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] | 7.06 (0.07) |
| Distance | [pc] | 141.71 (1) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 55.901 (0.07) |
| Proper motion (declination) | [mas/yr] | 5.156 (0.04) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 16.50 | |
| V magnitude | ||
| R magnitude | 16.40 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 16.09 (0.006) | |
| g magnitude | 16.22 (0.004) | |
| r magnitude | 16.59 (0.005) | |
| i magnitude | 16.90 (0.005) | |
| z magnitude | 17.18 (0.01) | |
| G magnitude | 16.41 (0.003) | |
| BP magnitude | ||
| RP magnitude | ||
| Pan g magnitude | ||
| Pan r magnitude | ||
| Pan i magnitude | ||
| Pan z magnitude | ||
| Pan y magnitude | ||
| E(B-V) | ||
* 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.