All names: SDSS J152114.11+403047.4, Gaia EDR3 1389148038781678336, GALEX J152114.1+403047, Gaia DR2 1389148038781678336, SDSS J152114.12+403047.5, Gaia DR3 1389148038781678336
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 21 14.09 (0.3) | 15 21 14.09 (0.5) | 15 21 14.14 (0.3) | 15 21 14.12 | ||||
| Declination | 40 30 47.41 (0.4) | 40 30 47.41 (0.6) | 40 30 47.44 (0.4) | 40 30 47.46 | ||||
| Spectral type | DA | DA | DA | |||||
| Effective temperature | [K] | 10662.0 (131) | ||||||
| log(g) | [cgs] | 8.11 (0.1) | ||||||
| Mass | [M☉] | 0.664 (0.08) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 2.47 (0.4) | 2.65 (0.6) | 2.47 (0.4) | ||||
| Distance | [pc] | 405.14 (72) | 377.59 (79) | 405.14 (72) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -35.31122793 (0.4) | -34.977 (0.9) | -35.311 (0.4) | ||||
| Proper motion (declination) | [mas/yr] | -1.844848702 (0.6) | 1.231 (1) | -1.845 (0.6) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 20.69 (0.1) | 20.69 (0.1) | ||||||
| g magnitude | 20.24 (0.04) | 20.24 (0.04) | ||||||
| r magnitude | 20.23 (0.05) | 20.23 (0.05) | ||||||
| i magnitude | 20.81 (0.1) | 20.81 (0.1) | ||||||
| z magnitude | 20.46 (0.2) | 20.46 (0.2) | ||||||
| G magnitude | 20.16 (0.05) | 20.22 | 20.16 (0.006) | |||||
| BP magnitude | 20.13 (0.05) | 20.19 | ||||||
| RP magnitude | 20.22 (0.1) | 20.20 | ||||||
| Pan g magnitude | 20.15 (0.02) | |||||||
| Pan r magnitude | 20.22 (0.02) | |||||||
| Pan i magnitude | 20.44 (0.02) | |||||||
| Pan z magnitude | 20.46 (0.03) | |||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.024 | |||||||
* 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.