SDSS J090902.40+161207.5
All names: SDSS J090902.40+161207.4, Gaia DR3 607933448015436416, Gaia DR2 607933448015436416, SDSSJ090902.40+161207.4, SDSS J090902.40+161207.5, GALEX J090902.4+161207, SDSS J090902.40+161207.49, Gaia EDR3 607933448015436416
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 09 02.41 (0.1) | 09 09 02.40 | 09 09 02.40 | 09 09 02.41 (0.2) | 09 09 02.41 (0.1) | |||||
| Declination | 16 12 07.52 (0.1) | 16 12 07.56 | 16 12 07.40 | 16 12 07.52 (0.2) | 16 12 07.59 (0.1) | |||||
| Spectral type | He-sdO | He-sdO | He-sdO | sdOHe | ||||||
| Effective temperature | [K] | 27340.0 | 100000.0 (1587) | |||||||
| log(g) | [cgs] | 5.71 | 5.58 (0.08) | |||||||
| Mass | [M☉] | 0.12 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.18 (0.2) | 0.40 (0.2) | 0.40 (0.2) | 0.18 (0.2) | |||||
| Distance | [pc] | 5575.40 (5201) | 2520.16 (1566) | 2520.11 (1566) | 5574.14 (5198) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 0.770596079 (0.2) | 0.734 (0.4) | 0.734249927 (0.4) | 0.771 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -4.245748358 (0.2) | -4.097 (0.4) | -4.096522369 (0.4) | -4.246 (0.2) | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 17.53 (0.01) | 17.53 (0.01) | 17.52 (0.01) | 17.53 (0.01) | ||||||
| g magnitude | 18.01 (0.006) | 18.01 (0.006) | 18.02 (0.02) | 18.01 (0.006) | ||||||
| r magnitude | 18.52 (0.008) | 18.52 (0.008) | 18.53 (0.02) | 18.52 (0.008) | ||||||
| i magnitude | 18.89 (0.01) | 18.89 (0.01) | 18.90 (0.02) | 18.89 (0.01) | ||||||
| z magnitude | 19.18 (0.04) | 19.18 (0.04) | 19.18 (0.04) | 19.18 (0.04) | ||||||
| G magnitude | 18.27 (0.01) | 18.31 (0.003) | 18.31 | 18.27 (0.003) | ||||||
| BP magnitude | 18.12 (0.01) | 18.07 (0.02) | 18.07 | |||||||
| RP magnitude | 18.57 (0.03) | 18.57 (0.03) | 18.57 | |||||||
| Pan g magnitude | 18.09 (0.004) | 18.09 (0.004) | ||||||||
| Pan r magnitude | 18.53 (0.004) | 18.53 (0.004) | ||||||||
| Pan i magnitude | 18.93 (0.01) | 18.93 (0.01) | ||||||||
| Pan z magnitude | 19.19 (0.009) | 19.19 (0.009) | ||||||||
| Pan y magnitude | 19.32 (0.03) | 19.32 (0.03) | ||||||||
| E(B-V) | 0.027 | |||||||||
* Constant surface field
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