All names: Gaia DR3 5175564475059135104, TIC 1124942, Gaia EDR3 5175564475059135104, GALEX J022759.6-093604, SDSS J022759.67-093604.4, WD 0225-098, Gaia DR2 5175564475059135104, 2MASS J02275966-0936044, SDSS J022759.67-093604.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 27 59.70 (0.2) | 02 27 59.67 | 02 27 59.70 (0.2) | 02 27 59.67 | 02 27 59.67 (0.2) | 02 27 58.92 | 02 27 59.67 | |||
| Declination | -09 36 04.37 (0.1) | -09 36 04.46 | -09 36 04.37 (0.2) | -09 36 04.39 | -09 36 04.51 (0.1) | -09 36 00.36 | -09 36 04.49 | |||
| Spectral type | DA+M | DA+M | DA3.5 M | DA+M | ||||||
| Effective temperature | [K] | 13904.0 (2228) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.24 (0.5) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.76 (0.3) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.22 (0.2) | 2.11 (0.2) | 2.22 (0.2) | ||||||
| Distance | [pc] | 449.90 (38) | 474.15 (55) | 449.90 (38) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 26.29253293 (0.2) | 26.74227518 (0.4) | 26.293 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 9.151595695 (0.2) | 9.041694079 (0.4) | 9.152 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.18 (0.09) | |||||||||
| H magnitude | 15.44 (0.1) | |||||||||
| K magnitude | 15.40 (0.2) | |||||||||
| u magnitude | 20.47 (0.06) | 20.49 | 20.47 (0.07) | 20.48 | 20.47 (0.06) | |||||
| g magnitude | 19.67 (0.01) | 19.68 | 19.67 (0.02) | 19.67 | 19.68 (0.04) | |||||
| r magnitude | 18.99 (0.01) | 19.00 | 18.98 (0.01) | 18.99 | 19.00 (0.02) | |||||
| i magnitude | 18.00 (0.008) | 18.01 | 18.00 (0.009) | 18.01 | 18.01 (0.02) | |||||
| z magnitude | 17.42 (0.02) | 17.41 | 17.41 (0.02) | 17.41 | 17.41 (0.02) | |||||
| G magnitude | 18.60 (0.07) | 18.62 | 18.60 (0.004) | |||||||
| BP magnitude | 19.64 (0.07) | 19.59 | ||||||||
| RP magnitude | 17.61 (0.02) | 17.59 | ||||||||
| Pan g magnitude | 19.60 (0.01) | |||||||||
| Pan r magnitude | 18.99 (0.008) | |||||||||
| Pan i magnitude | 18.03 (0.004) | |||||||||
| Pan z magnitude | 17.53 (0.005) | |||||||||
| Pan y magnitude | 17.27 (0.007) | |||||||||
| E(B-V) | 0.025 | |||||||||
* 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.