All names: Gaia DR3 1859449779504208256, TYC 2687-2519-1, 2MASS J20480756+3029148, TIC 230688001, Gaia DR2 1859449779500336768, WDJ204807.57+302915.20
| Parameter | Unit | Stilism | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|
| Right ascension | 20 48 07.56 (0.4) | 20 48 07.56 | ||
| Declination | 30 29 15.05 (0.4) | 30 29 14.87 | ||
| Spectral type | ||||
| 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] | 5.12 (0.6) | 12.34 (1) | |
| Distance | [pc] | 195.23 (24) | 81.05 (9) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.457 (0.5) | -3.750299609 | |
| Proper motion (declination) | [mas/yr] | -9.588 (0.6) | -20.84207531 | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.36 (0.1) | |||
| V magnitude | 11.85 (0.1) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 11.75 (0.02) | |||
| H magnitude | 11.69 (0.02) | |||
| K magnitude | 11.67 (0.02) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 12.37 (0.007) | 12.15 | ||
| BP magnitude | 12.22 | |||
| RP magnitude | 11.94 | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.009 | |||
* 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.