All names: TIC 77260596, WD 0240+341, USNO-B1.0 1243-00037856, 2MASS J02435856+3420094, KUV 02409+3407, Gaia EDR3 139988652217693568, UCAC2 43739529, Gaia DR2 139988652217693568, UCAC4 622-008017, Gaia DR3 139988652217693568
| Parameter | Unit | Gaia EDR3 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|
| Right ascension | 02 43 58.56 (0.3) | 02 43 58.56 (0.3) | 02 43 58.34 | |
| Declination | 34 20 09.34 (0.3) | 34 20 09.34 (0.3) | 34 20 04.56 | |
| Spectral type | dF | DA | ||
| 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] | -2.45 (0.4) | ||
| Distance | [pc] | |||
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.429773626 (0.4) | 0.43 (0.4) | |
| Proper motion (declination) | [mas/yr] | -0.434881714 (0.4) | -0.435 (0.4) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 17.50 | |||
| V magnitude | ||||
| R magnitude | 16.18 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.00 (0.04) | |||
| H magnitude | 14.72 (0.07) | |||
| K magnitude | 14.77 (0.09) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.20 (0.004) | 16.20 (0.007) | ||
| BP magnitude | 16.37 (0.004) | |||
| RP magnitude | 15.61 (0.004) | |||
| 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.