All names: Gaia DR2 584668056849158528, Gaia DR3 584668056849158528, SDSS J085351.77+070417.4, GALEX J085351.7+070418, SDSSJ085351.78+070417.4, SDSS J085351.77+070417.3, Gaia EDR3 584668056849158528
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 53 51.78 (0.07) | 08 53 51.78 | 08 53 51.78 (0.07) | ||
| Declination | 07 04 17.36 (0.04) | 07 04 17.40 | 07 04 17.36 (0.04) | ||
| Spectral type | He-sdO | sdO | |||
| Effective temperature | [K] | 46604.0 (2000) | |||
| log(g) | [cgs] | 5.93 (0.2) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.37 (0.09) | 0.17 (0.1) | 0.37 (0.09) | |
| Distance | [pc] | 2669.51 (638) | 5858.23 (4437) | 2669.51 (638) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.834 (0.09) | -4.944 (0.2) | -4.834 (0.09) | |
| Proper motion (declination) | [mas/yr] | 0.009 (0.07) | 0.197 (0.1) | 0.009 (0.07) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 17.78 (0.03) | ||||
| H magnitude | 17.85 (0.05) | ||||
| K magnitude | 17.80 (0.1) | ||||
| u magnitude | 16.69 (0.007) | 16.69 (0.007) | |||
| g magnitude | 17.00 (0.005) | 17.00 (0.005) | |||
| r magnitude | 17.39 (0.006) | 17.39 (0.006) | |||
| i magnitude | 17.70 (0.008) | 17.70 (0.008) | |||
| z magnitude | 18.01 (0.02) | 18.01 (0.02) | |||
| G magnitude | 17.21 (0.003) | 17.24 (0.001) | 17.21 (0.003) | ||
| BP magnitude | 17.10 (0.007) | 17.05 (0.008) | |||
| RP magnitude | 17.45 (0.01) | 17.42 (0.008) | |||
| Pan g magnitude | 17.07 (0.004) | ||||
| Pan r magnitude | 17.42 (0.003) | ||||
| Pan i magnitude | 17.74 (0.004) | ||||
| Pan z magnitude | 17.98 (0.01) | ||||
| Pan y magnitude | 18.18 (0.02) | ||||
| E(B-V) | 0.033 | ||||
* 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.