All names: TIC 4390067, Gaia DR3 882087811884800896, LAMOST J074613.15+333308.8, FBS B 484, 2MASS J07461317+3333073, FBS 0742+337, SDSS J074613.16+333307.6, SDSS J074613.17+333307.6, LAMOST J074613.16+333307.5, GALEX J074613.2+333309, Gaia EDR3 882087811884800896, SDSSJ074613.16+333307.6, Gaia DR2 882087811884800896, SDSS J074613.16+333307.5, SDSS J074613.16+333307.7, SDSS J074613.17+333307.67
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 46 13.16 (0.04) | 07 46 13.16 | 07 46 13.16 | 07 46 13.16 (0.06) | 07 46 13.17 (0.04) | 07 46 13.17 | ||||
| Declination | 33 33 07.65 (0.03) | 33 33 07.58 | 33 33 07.60 | 33 33 07.65 (0.05) | 33 33 07.67 (0.03) | 33 33 07.71 | ||||
| Spectral type | He-sdO | He-sdO | sdOHe | SDO | ||||||
| Effective temperature | [K] | 47270.0 (2530) | 49509.0 (292) | 100000.0 (1389) | ||||||
| log(g) | [cgs] | 5.77 (0.2) | 7.00 (0.05) | 5.64 (0.05) | ||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.34 (0.05) | 0.34 (0.09) | 0.34 (0.09) | 0.34 (0.05) | |||||
| Distance | [pc] | 2965.51 (441) | 2900.23 (776) | 2900.23 (776) | 2965.60 (441) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -3.976984017 (0.05) | -4.012 (0.1) | -4.012 (0.1) | -3.977 (0.05) | 0.9 | ||||
| Proper motion (declination) | [mas/yr] | -1.372236728 (0.03) | -1.348 (0.08) | -1.348 (0.08) | -1.372 (0.03) | 1.5 | ||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | 15.94 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.37 (0.1) | 16.37 (0.1) | ||||||||
| H magnitude | 16.63 (0.3) | 16.63 (0.3) | ||||||||
| K magnitude | 16.07 (0.3) | 16.07 (0.3) | ||||||||
| u magnitude | 15.20 (0.004) | 15.20 (0.004) | 15.19 (0.02) | 15.20 (0.004) | 15.19 (0.01) | |||||
| g magnitude | 15.60 (0.004) | 15.60 (0.004) | 15.62 (0.02) | 15.60 (0.004) | 15.62 (0.01) | |||||
| r magnitude | 16.08 (0.004) | 16.08 (0.004) | 16.09 (0.01) | 16.08 (0.004) | 16.11 (0.02) | |||||
| i magnitude | 16.44 (0.005) | 16.44 (0.005) | 16.46 (0.02) | 16.44 (0.005) | 16.42 (0.01) | |||||
| z magnitude | 16.73 (0.008) | 16.73 (0.008) | 16.73 (0.02) | 16.73 (0.008) | 16.76 (0.02) | |||||
| G magnitude | 15.84 (0.003) | 15.85 (0.0009) | 15.85 | 15.84 (0.003) | ||||||
| BP magnitude | 15.69 (0.003) | 15.62 (0.009) | 15.62 | |||||||
| RP magnitude | 16.12 (0.004) | 16.12 (0.003) | 16.12 | |||||||
| Pan g magnitude | 15.66 (0.003) | 15.66 (0.003) | ||||||||
| Pan r magnitude | 16.09 (0.003) | 16.09 (0.003) | ||||||||
| Pan i magnitude | 16.46 (0.002) | 16.46 (0.002) | ||||||||
| Pan z magnitude | 16.72 (0.004) | 16.72 (0.004) | ||||||||
| Pan y magnitude | 16.92 (0.01) | 16.91 (0.01) | ||||||||
| E(B-V) | 0.040 | |||||||||
* 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.