All names: Gaia DR3 1321728945001053952, Gaia DR2 1321728945000558080, SDSS J155728.58+321252.5
| Parameter | Unit | SDSS DR12 | Gaia DR2 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|
| Right ascension | 15 57 28.58 | 15 57 28.58 (2) | 15 57 28.58 (1) | 15 57 28.58 | |
| Declination | 32 12 52.61 | 32 12 52.62 (2) | 32 12 52.63 (2) | 32 12 52.56 | |
| Spectral type | sd | SD_auto | |||
| Effective temperature | [K] | 95818.0 (4736) | |||
| log(g) | [cgs] | 5.01 (0.02) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | ||||
| Distance | [pc] | ||||
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | ||||
| Proper motion (declination) | [mas/yr] | ||||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 19.80 (0.1) | 19.53 (0.07) | 21.15 (3) | ||
| g magnitude | 18.07 (0.01) | 17.95 (0.009) | 19.65 (2) | ||
| r magnitude | 17.28 (0.008) | 17.51 (0.01) | 18.88 (2) | ||
| i magnitude | 16.88 (0.008) | 16.98 (0.007) | 18.42 (1) | ||
| z magnitude | 16.57 (0.02) | 16.45 (0.01) | 18.01 (0.6) | ||
| G magnitude | 19.57 | 20.59 (0.01) | |||
| 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.