All names: Gaia DR2 5078976609103251456, V* IQ Eri, RBS 372, WISEA J025538.07-224702.7, 1RXS J025538.2-224655, WISE J025538.06-224702.7, Gaia DR3 5078976609103251456, AAVSO 0251-23
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 02 55 38.09 | 02 55 38.04 (0.04) | |
| Declination | -22 47 03.05 | -22 47 02.92 (0.06) | |
| Spectral type | DQ | DQ | |
| 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] | 4.92 | 4.92 (0.09) |
| Distance | [pc] | 203.18 | 203.17 (4) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 43.857 (0.05) | |
| Proper motion (declination) | [mas/yr] | -7.712 (0.07) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | 17.60 | ||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 17.16 | 17.16 (0.008) | |
| 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.