All names: 2MASS J04182956+4102075, AP J04182956+4102075, TIC 417892001, Gaia DR2 227936289520503296, LAMOST J041829.56+410207.5, Gaia DR3 227936289520503296
| Parameter | Unit | Guo et al. 2015 | Simbad |
|---|---|---|---|
| Right ascension | 04 18 29.58 (0.02) | ||
| Declination | 41 02 07.39 (0.02) | ||
| Spectral type | DA+M | DA+M | |
| 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] | 4.87 (0.03) | |
| Distance | [pc] | 205.39 (1) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -2.67 (0.03) | |
| Proper motion (declination) | [mas/yr] | -31.111 (0.02) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 12.39 (0.03) | ||
| H magnitude | 11.68 (0.03) | ||
| K magnitude | 11.50 (0.02) | ||
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 14.67 (0.003) | ||
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.