All names: SDSS J082547.51+174818.3, Gaia DR2 662152977721471488, Gaia EDR3 662152977721471488, GALEX J082547.5+174819, Gaia DR3 662152977721471488, SDSS J082547.52+174818.3
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 08 25 47.49 (0.2) | 08 25 47.49 | 08 25 47.53 (0.2) | |||
| Declination | 17 48 18.26 (0.1) | 17 48 18.26 | 17 48 18.42 (0.1) | |||
| Spectral type | DC | DC | DC: | |||
| Effective temperature | [K] | 19597.0 (3616) | ||||
| log(g) | [cgs] | 9.05 (0.2) | ||||
| Mass | [M☉] | 1.212 (0.07) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 4.96 (0.2) | 4.96 | 4.96 (0.2) | ||
| Distance | [pc] | 201.76 (10) | 201.76 | 201.76 (10) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -29.241 (0.3) | -29.241 (0.3) | |||
| Proper motion (declination) | [mas/yr] | -10.428 (0.2) | -10.428 (0.2) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 18.83 (0.02) | |||||
| g magnitude | 18.95 (0.009) | |||||
| r magnitude | 19.26 (0.01) | |||||
| i magnitude | 19.61 (0.02) | |||||
| z magnitude | 19.80 (0.09) | |||||
| G magnitude | 19.12 (0.004) | 19.12 | 19.12 (0.004) | |||
| BP magnitude | 19.02 (0.02) | |||||
| RP magnitude | 19.35 (0.05) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.010 | |||||
* 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.