All names: SDSS J145634.29+161137.7, WIRED J145634.30+161137.7, Gaia DR2 1187117793700269952, Gaia EDR3 1187117793700269952, GALEX J145634.3+161137, Gaia DR3 1187117793700269952, SDSS J145634.31+161137.8, WD 1454+163, SDSS J145634.26+161137.6, WISE J145634.26+161137.8, WISEA J145634.26+161137.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 56 34.23 (0.08) | 14 56 34.30 | 14 56 34.23 (0.1) | 14 56 34.23 | 14 56 34.33 (0.08) | 14 56 34.25 | 14 56 34.31 | ||||
| Declination | 16 11 37.68 (0.09) | 16 11 37.73 | 16 11 37.69 (0.1) | 16 11 37.68 | 16 11 37.88 (0.09) | 16 11 33.36 | 16 11 37.75 | ||||
| Spectral type | DA | DA+M | DA2.6+>M | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 19377.0 (171) | |||||||||
| log(g) | [cgs] | 7.38 (0.03) | |||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.57 (0.1) | 2.57 (0.2) | 2.57 | 2.57 (0.1) | ||||||
| Distance | [pc] | 388.62 (18) | 388.37 (23) | 388.62 | 388.62 (18) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -92.52284922 (0.1) | -92.88219649 (0.3) | -92.523 (0.1) | |||||||
| Proper motion (declination) | [mas/yr] | -12.66786088 (0.1) | -12.61113156 (0.3) | -12.668 (0.1) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 17.87 (0.01) | 17.87 (0.01) | 17.90 | 17.86 (0.03) | |||||||
| g magnitude | 17.70 (0.006) | 17.70 (0.006) | 17.70 | 17.72 (0.02) | |||||||
| r magnitude | 18.03 (0.007) | 18.03 (0.007) | 18.00 | 18.03 (0.02) | |||||||
| i magnitude | 18.10 (0.009) | 18.10 (0.009) | 18.10 | 18.10 (0.02) | |||||||
| z magnitude | 17.93 (0.02) | 17.93 (0.02) | 17.90 | 17.94 (0.02) | |||||||
| G magnitude | 17.82 (0.01) | 17.83 | 17.82 | 17.82 (0.003) | |||||||
| BP magnitude | 17.81 (0.01) | 17.78 | |||||||||
| RP magnitude | 17.72 (0.01) | 17.70 | |||||||||
| Pan g magnitude | 17.73 (0.004) | ||||||||||
| Pan r magnitude | 18.03 (0.006) | ||||||||||
| Pan i magnitude | 18.13 (0.005) | ||||||||||
| Pan z magnitude | 18.00 (0.01) | ||||||||||
| Pan y magnitude | 17.88 (0.01) | ||||||||||
| 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.