All names: SDSS J090318.37+043533.7, GALEX J090318.4+043533, SDSSJ090318.36+043533.7, SDSS J090318.37+043533.72, LAMOST J090318.36+043533.7, Gaia EDR3 580148686102276352, Gaia DR2 580148686102276352, SDSS J090318.36+043533.7, Gaia DR3 580148686102276352
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 03 18.37 (0.08) | 09 03 18.37 | 09 03 18.36 | 09 03 18.37 (0.1) | 09 03 18.37 (0.08) | ||||
| Declination | 04 35 33.76 (0.07) | 04 35 33.74 | 04 35 33.70 | 04 35 33.76 (0.1) | 04 35 33.75 (0.07) | ||||
| Spectral type | sdOB | sdO | sdO | ||||||
| Effective temperature | [K] | 36006.0 (188) | |||||||
| log(g) | [cgs] | 5.52 (0.03) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.35 (0.09) | 0.51 (0.1) | 0.51 (0.1) | 0.35 (0.09) | ||||
| Distance | [pc] | 2863.38 (714) | 1958.48 (478) | 1958.30 (478) | 2863.69 (713) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.193013768 (0.09) | -0.491 (0.2) | -0.491450076 (0.2) | -0.193 (0.09) | ||||
| Proper motion (declination) | [mas/yr] | 0.49095841 (0.08) | 0.787 (0.2) | 0.787357667 (0.2) | 0.491 (0.08) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 17.63 (0.03) | ||||||||
| H magnitude | 17.67 (0.07) | ||||||||
| K magnitude | 17.70 (0.1) | ||||||||
| u magnitude | 16.31 (0.006) | 16.31 (0.006) | 16.31 (0.01) | 16.31 (0.006) | |||||
| g magnitude | 16.58 (0.004) | 16.58 (0.004) | 16.61 (0.02) | 16.58 (0.004) | |||||
| r magnitude | 17.07 (0.005) | 17.07 (0.005) | 17.07 (0.02) | 17.07 (0.005) | |||||
| i magnitude | 17.43 (0.006) | 17.43 (0.006) | 17.43 (0.02) | 17.43 (0.006) | |||||
| z magnitude | 17.77 (0.02) | 17.77 (0.02) | 17.77 (0.02) | 17.77 (0.02) | |||||
| G magnitude | 16.85 (0.004) | 16.89 (0.003) | 16.89 | 16.85 (0.003) | |||||
| BP magnitude | 16.71 (0.004) | 16.68 (0.02) | 16.68 | ||||||
| RP magnitude | 17.13 (0.01) | 17.12 (0.02) | 17.12 | ||||||
| Pan g magnitude | 16.66 (0.003) | 16.66 (0.003) | |||||||
| Pan r magnitude | 17.12 (0.002) | 17.12 (0.002) | |||||||
| Pan i magnitude | 17.48 (0.003) | 17.48 (0.003) | |||||||
| Pan z magnitude | 17.75 (0.007) | 17.75 (0.007) | |||||||
| Pan y magnitude | 17.94 (0.003) | 17.94 (0.003) | |||||||
| E(B-V) | 0.038 | ||||||||
* 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.