All names: Gaia DR2 2779906694594683264, PHL 810, UCAC4 520-000869, SDSSJ002852.25+135446.5, SDSS J002852.25+135446.6, 2MASS J00285223+1354465, GALEX J002852.2+135446, Gaia EDR3 2779906694594683264, SDSS J002852.26+135446.6, PG 0026+136, TIC 336766344, Gaia DR3 2779906694594683264
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 28 52.26 (0.05) | 00 28 52.26 | 00 28 52.25 | 00 28 52.26 (0.06) | 00 28 52.26 (0.05) | 00 28 52.26 | |||
| Declination | 13 54 46.52 (0.03) | 13 54 46.66 | 13 54 46.50 | 13 54 46.52 (0.05) | 13 54 46.59 (0.03) | 13 54 46.64 | |||
| Spectral type | sdOB | sdO | SDO | ||||||
| Effective temperature | [K] | 38830.0 (1000) | 36052.0 (181) | ||||||
| log(g) | [cgs] | 5.38 (0.1) | 5.37 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.37 (0.05) | 0.21 (0.08) | 0.21 (0.08) | 0.37 (0.05) | ||||
| Distance | [pc] | 2709.98 (397) | 4730.37 (1810) | 4730.37 (1810) | 2710.03 (397) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.910829086 (0.06) | -0.724 (0.2) | -0.724 (0.2) | -0.911 (0.06) | 5.0 | |||
| Proper motion (declination) | [mas/yr] | -4.747549921 (0.05) | -4.816 (0.08) | -4.816 (0.08) | -4.748 (0.05) | -0.1 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.84 (0.03) | ||||||||
| V magnitude | 16.00 (0.02) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.34 (0.1) | 16.34 (0.1) | |||||||
| H magnitude | 16.13 | ||||||||
| K magnitude | 15.59 | ||||||||
| u magnitude | 15.43 (0.004) | 15.43 (0.004) | 15.43 (0.004) | 15.45 (0.02) | |||||
| g magnitude | 15.70 (0.004) | 15.70 (0.004) | 15.70 (0.004) | 15.79 (0.03) | |||||
| r magnitude | 16.16 (0.004) | 16.16 (0.004) | 16.16 (0.004) | 16.18 (0.01) | |||||
| i magnitude | 16.49 (0.005) | 16.49 (0.005) | 16.49 (0.005) | 16.47 (0.02) | |||||
| z magnitude | 16.75 (0.01) | 16.75 (0.01) | 16.75 (0.01) | 16.76 (0.02) | |||||
| G magnitude | 15.94 (0.002) | 15.97 (0.001) | 15.97 | 15.94 (0.003) | |||||
| BP magnitude | 15.82 (0.002) | 15.77 (0.006) | 15.77 | ||||||
| RP magnitude | 16.18 (0.004) | 16.18 (0.004) | 16.18 | ||||||
| Pan g magnitude | 15.81 (0.005) | 15.81 (0.005) | |||||||
| Pan r magnitude | 16.17 (0.005) | 16.17 (0.005) | |||||||
| Pan i magnitude | 16.51 (0.004) | 16.51 (0.004) | |||||||
| Pan z magnitude | 16.76 (0.007) | 16.76 (0.007) | |||||||
| Pan y magnitude | 16.95 (0.01) | 16.95 (0.01) | |||||||
| E(B-V) | 0.044 | ||||||||
* 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.