All names: SDSS J220429.12-084850.5, Gaia DR3 2619130087131374080, SDSS J220429.11-084850.5, Gaia EDR3 2619130087131374080, WD 2201-090, Gaia DR2 2619130087131374080, SDSS J220429.13-084850.8, GALEX J220429.1-084850
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 04 29.19 (0.3) | 22 04 29.13 | 22 04 29.19 (0.7) | 22 04 29.19 | 22 04 29.11 (0.3) | 22 04 29.12 | 22 04 28.90 | 22 04 29.12 | ||||
| Declination | -08 48 51.41 (0.2) | -08 48 50.81 | -08 48 51.38 (0.4) | -08 48 51.41 | -08 48 50.48 (0.2) | -08 48 50.52 | -08 48 43.20 | -08 48 50.53 | ||||
| Spectral type | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 8584.0 (359) | 8911.0 (58) | 8776.0 (69) | ||||||||
| log(g) | [cgs] | 7.91 (0.1) | 8.35 (0.1) | 8.12 (0.1) | ||||||||
| Mass | [M☉] | 0.546 (0.08) | 0.666 (0.08) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 5.89 (0.3) | 5.70 (0.7) | 5.89 | 5.89 (0.3) | |||||||
| Distance | [pc] | 169.64 (8) | 175.40 (22) | 169.64 | 169.64 (8) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 73.25804443 (0.3) | 73.69098004 (0.7) | 73.258 (0.3) | 70.1 | |||||||
| Proper motion (declination) | [mas/yr] | -58.60519434 (0.3) | -59.0768612 (0.7) | -58.605 (0.3) | -57.2 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.25 (0.03) | 19.25 (0.03) | 19.27 (0.03) | 19.26 | 19.26 (0.03) | |||||||
| g magnitude | 18.78 (0.009) | 18.78 (0.009) | 18.79 (0.02) | 18.78 | 18.78 (0.02) | |||||||
| r magnitude | 18.76 (0.01) | 18.76 (0.01) | 18.79 (0.01) | 18.79 | 18.77 (0.01) | |||||||
| i magnitude | 18.86 (0.01) | 18.86 (0.01) | 18.86 (0.02) | 18.86 | 18.85 (0.02) | |||||||
| z magnitude | 18.91 (0.04) | 18.91 (0.04) | 18.93 (0.04) | 18.93 | 18.90 (0.04) | |||||||
| G magnitude | 18.73 (0.02) | 18.75 | 18.73 | 18.73 (0.004) | ||||||||
| BP magnitude | 18.85 (0.02) | 18.75 | ||||||||||
| RP magnitude | 18.53 (0.04) | 18.54 | ||||||||||
| Pan g magnitude | 18.78 (0.008) | |||||||||||
| Pan r magnitude | 18.78 (0.006) | |||||||||||
| Pan i magnitude | 18.88 (0.006) | |||||||||||
| Pan z magnitude | 18.98 (0.03) | |||||||||||
| Pan y magnitude | 19.04 (0.04) | |||||||||||
| E(B-V) | 0.023 | |||||||||||
* 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.