All names: JL 197, Gaia DR3 4921390960477978112, WDJ003336.10-550838.95, USNO-B1.0 0348-00004158, GALEX J003336.1-550838, WD 0031-554, HE 0031-5525, Gaia DR2 4921390960477978112, Gaia EDR3 4921390960477978112, TIC 281594636, 2MASS J00333610-5508389, UCAC4 175-000588
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Koester et al. 2009 | Castanheira et al. 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 33 36.13 (0.02) | 00 33 36.13 (0.03) | 00 33 36.13 | 00 33 36.10 (0.02) | 00 33 36.13 | 00 33 36.17 | ||||
| Declination | -55 08 39.60 (0.03) | -55 08 39.58 (0.03) | -55 08 39.60 | -55 08 38.95 (0.03) | -55 08 39.58 | -55 08 33.36 | ||||
| Spectral type | DA | DA | DAV4.3 | |||||||
| Effective temperature | [K] | 11662.0 (28) | 11480.0 | 11610.0 (78) | ||||||
| log(g) | [cgs] | 7.83 (0.01) | 7.65 | 7.90 (0.008) | ||||||
| Mass | [M☉] | 0.55 (0.006) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 14.72 (0.03) | 14.73 (0.04) | 14.72 | 14.72 (0.03) | 14.73 (0.04) | ||||
| Distance | [pc] | 67.92 (0.2) | 67.88 (0.2) | 67.92 | 67.92 (0.2) | 67.88 (0.2) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 15.97925718 (0.03) | 16.02963307 (0.06) | 15.979 (0.03) | 16.02963307 | |||||
| Proper motion (declination) | [mas/yr] | -40.82210196 (0.04) | -40.85412256 (0.07) | -40.822 (0.04) | -40.85412256 | |||||
| Variability | VAR | VAR | ||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.94 | 15.89 (0.06) | ||||||||
| V magnitude | 15.70 | 15.73 (0.02) | ||||||||
| R magnitude | 15.90 (0.3) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 15.83 (0.07) | |||||||||
| H magnitude | 15.70 (0.1) | |||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | 15.72 (0) | 15.94 | ||||||||
| r magnitude | 15.89 (0.06) | |||||||||
| i magnitude | 16.08 (0.01) | |||||||||
| z magnitude | ||||||||||
| G magnitude | 15.77 (0.002) | 15.80 | 15.77 | 15.77 (0.003) | 15.80 | |||||
| BP magnitude | 15.79 (0.002) | 15.79 | 15.79 | |||||||
| RP magnitude | 15.79 (0.003) | 15.80 | 15.80 | |||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.002 | |||||||||
| Period #1 | [s] | 274.9 | ||||||||
| Amplitude #1 | [mma] | 1.5 | ||||||||
| Period #2 | [s] | 276.9 | ||||||||
| Amplitude #2 | [mma] | 4.8 | ||||||||
| Period #3 | [s] | 329.5 | ||||||||
| Amplitude #3 | [mma] | 2.5 | ||||||||
* 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.