All names: SDSS J152820.77-004827.79, SDSS J152820.77-004827.7, Gaia EDR3 4416934196724553728, SDSS J152820.76-004827.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 15 28 22.55 (0.5) | 15 28 20.77 | 15 28 20.77 | |||
| Declination | -00 47 29.97 (0.4) | -00 48 27.80 | -00 48 27.81 | |||
| Spectral type | DA | DA | ||||
| Effective temperature | [K] | 8709.0 (219) | ||||
| log(g) | [cgs] | 7.70 (0.3) | ||||
| Mass | [M☉] | 0.4639999999999999 (0.1) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 2.47 (0.6) | ||||
| Distance | [pc] | 405.24 (93) | ||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -0.549 (0.6) | ||||
| Proper motion (declination) | [mas/yr] | -18.207 (0.5) | ||||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 22.41 (0.2) | 22.34 (0.2) | 22.34 (0.2) | |||
| g magnitude | 21.62 (0.05) | 21.61 (0.05) | 21.62 (0.05) | |||
| r magnitude | 21.57 (0.07) | 21.54 (0.06) | 21.57 (0.07) | |||
| i magnitude | 21.50 (0.09) | 21.51 (0.08) | 21.50 (0.09) | |||
| z magnitude | 21.03 (0.2) | 20.94 (0.2) | 20.94 (0.2) | |||
| G magnitude | 19.94 (0.006) | |||||
| BP magnitude | 19.97 (0.06) | |||||
| RP magnitude | 19.67 (0.09) | |||||
| Pan g magnitude | 21.54 (0.05) | |||||
| Pan r magnitude | 21.51 (0.05) | |||||
| Pan i magnitude | 21.58 (0.04) | |||||
| Pan z magnitude | 21.36 (0.2) | |||||
| 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.