All names: SDSS J044744.55-000450.1, Gaia EDR3 3229873238328746112, SDSS J044744.55-000450.2, WDJ044744.57-000450.15, WDJ044744.57-000450.16, Gaia DR2 3229873238328746112, Gaia DR3 3229873238328746112
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 04 47 44.74 (0.4) | 04 47 44.73 | 04 47 44.57 (0.4) | 04 47 44.73 | |||
| Declination | -00 04 50.74 (0.3) | -00 04 50.72 | -00 04 50.16 (0.3) | -00 04 50.72 | |||
| Spectral type | CND | ||||||
| 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] | 10.88 (0.5) | 10.34 (0.8) | 10.88 (0.5) | 10.34 (0.8) | ||
| Distance | [pc] | 91.92 (4) | 96.73 (8) | 91.92 (4) | 96.73 (8) | ||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 157.0827964 (0.6) | 155.4746255 (2) | 157.083 (0.6) | 155.4746255 | ||
| Proper motion (declination) | [mas/yr] | -35.97897508 (0.5) | -36.17110375 (0.9) | -35.979 (0.5) | -36.17110375 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | |||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | 22.51 (0.2) | 22.90 (0.3) | |||||
| g magnitude | 20.97 (0.03) | 25.11 (0.6) | |||||
| r magnitude | 20.08 (0.02) | 20.42 (0.03) | |||||
| i magnitude | 19.70 (0.02) | 19.87 (0.03) | |||||
| z magnitude | 19.58 (0.06) | 19.68 (0.1) | |||||
| G magnitude | 20.10 (0.09) | 20.17 | 20.10 (0.006) | 20.17 | |||
| BP magnitude | 20.72 (0.09) | 20.65 | 20.65 | ||||
| RP magnitude | 19.41 (0.06) | 19.41 | 19.41 | ||||
| Pan g magnitude | 20.77 (0.03) | ||||||
| Pan r magnitude | 20.01 (0.03) | ||||||
| Pan i magnitude | 19.74 (0.02) | ||||||
| Pan z magnitude | 19.60 (0.03) | ||||||
| Pan y magnitude | 19.51 (0.04) | ||||||
| E(B-V) | 0.001 | ||||||
* 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.