All names: TIC 117772810, Gaia DR3 3171373722173234048, WISEA J043847.17-162718.5, Gaia DR2 3171373722173234048, Gaia EDR3 3171373722173234048, HE 0436-1633, UCAC4 368-005865, USNO-B1.0 0735-00046248, WDJ043847.19-162717.39, 2MASS J04384720-1627172, EC 04365-1633, WD 0436-165, WISE J043847.17-162718.3, GALEX J043847.2-162717
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 38 47.17 (0.03) | 04 38 47.17 (0.04) | 04 38 47.17 | 04 38 47.19 (0.03) | 04 38 47.17 | 04 38 47.21 | ||||
| Declination | -16 27 19.23 (0.03) | -16 27 19.17 (0.03) | -16 27 19.23 | -16 27 17.38 (0.03) | -16 27 19.17 | -16 27 19.44 | ||||
| Spectral type | DA | DA | DA | |||||||
| Effective temperature | [K] | 14092.0 (67) | 13604.0 (136) | |||||||
| log(g) | [cgs] | 7.96 (0.006) | 8.07 (0.009) | |||||||
| Mass | [M☉] | 0.648 (0.008) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 11.97 (0.04) | 11.97 (0.06) | 11.97 | 11.97 (0.04) | 11.97 (0.06) | ||||
| Distance | [pc] | 83.55 (0.3) | 83.56 (0.4) | 83.55 | 83.55 (0.3) | 83.56 (0.4) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.89002169 (0.03) | -18.75236788 (0.08) | -18.89 (0.03) | -18.75236788 | |||||
| Proper motion (declination) | [mas/yr] | -115.1786718 (0.03) | -115.0575089 (0.07) | -115.179 (0.03) | -115.0575089 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 16.22 | 16.21 | ||||||||
| V magnitude | 16.03 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.35 (0.09) | |||||||||
| H magnitude | 16.32 (0.2) | |||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.21 (0.002) | 16.23 | 16.21 | 16.21 (0.003) | 16.23 | |||||
| BP magnitude | 16.19 (0.002) | 16.18 | 16.18 | |||||||
| RP magnitude | 16.26 (0.004) | 16.26 | 16.26 | |||||||
| Pan g magnitude | 16.11 (0.005) | |||||||||
| Pan r magnitude | 16.33 (0.003) | |||||||||
| Pan i magnitude | 16.58 (0.005) | |||||||||
| Pan z magnitude | 16.80 (0.004) | |||||||||
| Pan y magnitude | 16.94 (0.007) | |||||||||
| E(B-V) | 0.001 | |||||||||
* 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.