All names: SDSS J144529.16+284158.31, SDSS J144529.16+284158.3, Gaia DR3 1281642022361192064, Gaia EDR3 1281642022361192064, Gaia DR2 1281642022361192064
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 45 29.15 (0.02) | 14 45 29.16 | 14 45 29.15 (0.02) | 14 45 29.16 (0.02) | ||||
| Declination | 28 41 58.18 (0.02) | 28 41 58.30 | 28 41 58.19 (0.03) | 28 41 58.40 (0.02) | ||||
| Spectral type | sdA | sdA | ||||||
| Effective temperature | [K] | 6777.0 (12) | ||||||
| log(g) | [cgs] | 5.54 (0.03) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.58 (0.03) | 0.58 (0.04) | 0.58 (0.03) | ||||
| Distance | [pc] | 1712.51 (95) | 1722.90 (111) | 1712.62 (95) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -8.951781274 (0.03) | -9.003506045 (0.06) | -8.952 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | -13.54471237 (0.03) | -13.63684583 (0.08) | -13.545 (0.03) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 16.66 (0.007) | 16.66 (0.02) | 16.66 (0.02) | |||||
| g magnitude | 15.79 (0.003) | 15.81 (0.02) | 15.81 (0.02) | |||||
| r magnitude | 15.55 (0.004) | 15.54 (0.02) | 15.54 (0.02) | |||||
| i magnitude | 15.45 (0.005) | 15.47 (0.02) | 15.47 (0.02) | |||||
| z magnitude | 15.44 (0.006) | 15.45 (0.02) | 15.45 (0.02) | |||||
| G magnitude | 15.53 (0.002) | 15.54 | 15.53 (0.003) | |||||
| BP magnitude | 15.78 (0.002) | 15.78 | ||||||
| RP magnitude | 15.11 (0.001) | 15.12 | ||||||
| Pan g magnitude | 15.80 (0.002) | |||||||
| Pan r magnitude | 15.55 (0.002) | |||||||
| Pan i magnitude | 15.46 (0.003) | |||||||
| Pan z magnitude | 15.45 (0.003) | |||||||
| Pan y magnitude | 15.46 (0.005) | |||||||
| 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.