All names: Gaia DR1 244449025724553984, TYC 2875-1000-1, 2MASS J03402154+4435424, Gaia DR2 244449025724553984, Gaia DR3 244449025724553984, LAMOST J034021.55+443542.3, TIC 65689293
| Parameter | Unit | Stilism | Guo et al. 2015 | Simbad |
|---|---|---|---|---|
| Right ascension | 03 40 21.54 (0.01) | |||
| Declination | 44 35 42.40 (0.01) | |||
| Spectral type | DAZ? | DAZ? | ||
| Effective temperature | [K] | 30274.0 (213) | ||
| log(g) | [cgs] | 7.45 (0.05) | ||
| Mass | [M☉] | 0.42 (0.02) | ||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 2.29 (0.02) | ||
| Distance | [pc] | 437.01 (3) | ||
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.209 (0.02) | ||
| Proper motion (declination) | [mas/yr] | -6.562 (0.02) | ||
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.91 (0.4) | |||
| V magnitude | 11.66 (0.2) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 10.52 (0.02) | |||
| H magnitude | 10.24 (0.02) | |||
| K magnitude | 10.18 (0.02) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 11.78 (0.003) | |||
| BP magnitude | ||||
| RP magnitude | ||||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.166 | |||
* 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.