All names: Gaia DR3 6596043926602825344, Gaia DR2 6596043926602825344, Gaia EDR3 6596043926602825344, USNO-A2.0 0525-43930457, HE 2237-3630, WD 2237-365, LEHPM 4977, WISEA J223959.56-361605.3, 2MASS J22395940-3615553, NLTT 54482, LP 984-76, LHS 3841, DENIS J223959.3-361554, LEHPM 4978, TIC 214428008
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 22 39 59.64 (0.04) | 22 39 59.63 (0.05) | 22 39 59.41 (0.04) | 22 39 58.90 | ||
| Declination | -36 16 10.11 (0.04) | -36 16 09.66 (0.05) | -36 15 55.85 (0.04) | -36 15 14.04 | ||
| Spectral type | esdM2.5 | DC+DM | ||||
| Effective temperature | [K] | |||||
| log(g) | [cgs] | |||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 11.79 (0.06) | 11.87 (0.07) | 11.79 (0.06) | ||
| Distance | [pc] | 84.82 (0.4) | 84.24 (0.5) | 84.82 (0.4) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 176.7932718 (0.05) | 176.905 (0.09) | 176.793 (0.05) | ||
| Proper motion (declination) | [mas/yr] | -890.9300004 (0.04) | -890.7 (0.1) | -890.93 (0.04) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | yes | |||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | 14.86 (0.05) | |||||
| J magnitude | 13.82 (0.02) | |||||
| H magnitude | 13.32 (0.03) | |||||
| K magnitude | 13.20 (0.04) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 16.10 (0.008) | 16.12 | 16.10 (0.003) | |||
| BP magnitude | 17.16 (0.008) | 17.19 | ||||
| RP magnitude | 15.08 (0.002) | 15.10 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.002 | |||||
* 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.