All names: Gaia DR3 4430810828036896512, Gaia DR2 4430810828036896512, SDSS J153643.89+072615.8, SDSS J153643.90+072615.86, GALEX J153643.9+072615, Gaia EDR3 4430810828036896512, SDSS J153643.90+072615.8, SDSS J153643.89+072616.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 36 43.90 (0.2) | 15 36 43.89 | 15 36 43.90 (0.3) | 15 36 43.90 | 15 36 43.90 (0.2) | |||||
| Declination | 07 26 15.70 (0.1) | 07 26 16.04 | 07 26 15.71 (0.2) | 07 26 15.70 | 07 26 16.13 (0.1) | |||||
| Spectral type | DA | DA | DA | DA+MS | ||||||
| Effective temperature | [K] | 7206.0 (51) | 8825.0 (313) | |||||||
| log(g) | [cgs] | 8.77 (0.09) | 7.05 (0.1) | |||||||
| Mass | [M☉] | 1.0490000000000002 (0.05) | 0.222 (0.03) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 3.21 (0.2) | 3.04 (0.3) | 3.21 | 3.21 (0.2) | |||||
| Distance | [pc] | 311.95 (22) | 328.49 (33) | 311.95 | 311.94 (22) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.527419498 (0.3) | 2.463265785 (0.5) | 2.527 (0.3) | ||||||
| Proper motion (declination) | [mas/yr] | -26.83659772 (0.2) | -26.37701491 (0.4) | -26.837 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | |||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.02 (0.02) | 19.01 (0.03) | 19.02 (0.02) | |||||||
| g magnitude | 18.82 (0.008) | 18.84 (0.02) | 18.82 (0.008) | |||||||
| r magnitude | 18.92 (0.01) | 18.94 (0.03) | 18.92 (0.01) | |||||||
| i magnitude | 18.99 (0.01) | 19.04 (0.04) | 18.99 (0.01) | |||||||
| z magnitude | 18.83 (0.04) | 18.87 (0.04) | 18.83 (0.04) | |||||||
| G magnitude | 18.85 (0.04) | 18.89 | 18.85 | 18.85 (0.004) | ||||||
| BP magnitude | 18.90 (0.04) | 18.91 | ||||||||
| RP magnitude | 18.49 (0.03) | 18.51 | ||||||||
| Pan g magnitude | 19.19 (0.008) | |||||||||
| Pan r magnitude | 18.90 (0.008) | |||||||||
| Pan i magnitude | 18.77 (0.005) | |||||||||
| Pan z magnitude | 18.73 (0.01) | |||||||||
| Pan y magnitude | 18.75 (0.02) | |||||||||
| E(B-V) | 0.030 | |||||||||
* 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.