All names: SDSS J103424.78+155544.4, SDSS J103424.78+155544.39, Gaia EDR3 3889067769559310848, SDSSJ103424.78+155544.3, SDSS J103424.78+155544.3, Gaia DR2 3889067769559310848, Gaia DR3 3889067769559310848, GALEX J103424.9+155544
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 34 24.78 (0.07) | 10 34 24.79 | 10 34 24.78 | 10 34 24.78 (0.1) | 10 34 24.79 (0.07) | ||||
| Declination | 15 55 44.33 (0.06) | 15 55 44.40 | 15 55 44.30 | 15 55 44.33 (0.09) | 15 55 44.39 (0.06) | ||||
| Spectral type | He-sdO | He-sdO | sdOHe | ||||||
| Effective temperature | [K] | 75676.0 (2613) | |||||||
| log(g) | [cgs] | 5.00 (0.01) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.02 (0.08) | 0.04 (0.1) | 0.04 (0.1) | 0.02 (0.08) | ||||
| Distance | [pc] | 58087.27 (274256) | 23201.86 (68637) | 23213.99 (68700) | 58139.53 (274811) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -2.031946641 (0.08) | -1.967 (0.2) | -1.967168775 (0.2) | -2.032 (0.08) | ||||
| Proper motion (declination) | [mas/yr] | -3.245747962 (0.07) | -3.306 (0.2) | -3.30637101 (0.2) | -3.246 (0.07) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 15.98 (0.006) | 15.98 (0.006) | 15.98 (0.01) | 15.98 (0.006) | |||||
| g magnitude | 16.38 (0.004) | 16.39 (0.004) | 16.38 (0) | 16.39 (0.004) | |||||
| r magnitude | 16.90 (0.005) | 16.90 (0.005) | 16.90 (0.01) | 16.90 (0.005) | |||||
| i magnitude | 17.25 (0.006) | 17.25 (0.006) | 17.25 (0.01) | 17.25 (0.006) | |||||
| z magnitude | 17.58 (0.02) | 17.58 (0.02) | 17.58 (0.02) | 17.58 (0.02) | |||||
| G magnitude | 16.64 (0.005) | 16.67 (0.004) | 16.67 | 16.64 (0.003) | |||||
| BP magnitude | 16.47 (0.005) | 16.42 (0.009) | 16.42 | ||||||
| RP magnitude | 16.95 (0.008) | 16.96 (0.01) | 16.96 | ||||||
| Pan g magnitude | 16.46 (0.005) | 16.46 (0.005) | |||||||
| Pan r magnitude | 16.90 (0.002) | 16.90 (0.002) | |||||||
| Pan i magnitude | 17.26 (0.003) | 17.26 (0.003) | |||||||
| Pan z magnitude | 17.56 (0.007) | 17.55 (0.007) | |||||||
| Pan y magnitude | 17.73 (0.008) | 17.73 (0.008) | |||||||
| 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.