All names: TIC 156639958, HE 1247-1130, Gaia EDR3 3529574716212596736, PG 1247-115, 2MASS J12495416-1146595, GALEX J124954.2-114658, USNO-B1.0 0782-00278751, Gaia DR3 3529574716212596736, WD 1247-115, Gaia DR2 3529574716212596736
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 49 54.16 (0.04) | 12 49 54.16 (0.07) | 12 49 54.16 | 12 49 54.17 (0.04) | 12 49 53.66 | |||
| Declination | -11 47 00.00 (0.03) | -11 46 59.98 (0.04) | -11 47 00.00 | -11 46 59.32 (0.03) | -11 46 55.92 | |||
| Spectral type | DA | DA | DA1.8 | |||||
| Effective temperature | [K] | 28110.0 (62) | 27913.0 (384) | |||||
| log(g) | [cgs] | 7.84 (0.01) | 8.01 (0.01) | |||||
| Mass | [M☉] | 0.646 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 9.19 (0.05) | 9.22 (0.08) | 9.19 | 9.19 (0.05) | |||
| Distance | [pc] | 108.83 (0.6) | 108.47 (0.9) | 108.83 | 108.84 (0.6) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -11.31188411 (0.06) | -11.3807778 (0.2) | -11.312 (0.06) | ||||
| Proper motion (declination) | [mas/yr] | -42.30293049 (0.04) | -42.30389838 (0.08) | -42.303 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 14.74 | 15.21 | ||||||
| V magnitude | ||||||||
| R magnitude | 15.30 | |||||||
| I magnitude | ||||||||
| J magnitude | 16.06 (0.08) | |||||||
| H magnitude | 15.91 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.32 (0.002) | 15.34 | 15.32 | 15.32 (0.003) | ||||
| BP magnitude | 15.20 (0.002) | 15.16 | ||||||
| RP magnitude | 15.58 (0.002) | 15.57 | ||||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.007 | |||||||
* 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.