SDSS J165900.75+284714.3
All names: SDSS J165900.75+284714.3, SDSS J165900.75+284714.35, Gaia DR2 1308679524389574272, SDSS J165900.74+284714.3, Gaia EDR3 1308679524389574272, GALEX J165900.7+284713, Gaia DR3 1308679524389574272
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 59 00.74 (0.2) | 16 59 00.74 | 16 59 00.74 (0.3) | 16 59 00.75 (0.2) | ||||||
| Declination | 28 47 14.37 (0.3) | 28 47 14.34 | 28 47 14.37 (0.4) | 28 47 14.41 (0.3) | ||||||
| Spectral type | He-sdO | He-sdO | He-sdO | sdOHe | ||||||
| Effective temperature | [K] | 23655.0 | 28905.0 | 47131.0 (10000) | ||||||
| log(g) | [cgs] | 7.34 | 7.48 | 6.50 (0.5) | ||||||
| Mass | [M☉] | 0.36 | 0.39 | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0186 | 0.0126 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.35 (0.4) | 0.76 (0.5) | 0.35 (0.4) | ||||||
| Distance | [pc] | 2856.85 (2963) | 1316.64 (808) | 2857.14 (2963) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.193100637 (0.3) | -3.442887686 (0.7) | -2.193 (0.3) | ||||||
| Proper motion (declination) | [mas/yr] | -2.503979175 (0.4) | -2.334224661 (0.8) | -2.504 (0.4) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.39 (0.03) | 19.39 (0.03) | 19.39 (0.03) | |||||||
| g magnitude | 19.76 (0.01) | 19.76 (0.01) | 19.76 (0.01) | |||||||
| r magnitude | 20.24 (0.03) | 20.24 (0.03) | 20.24 (0.03) | |||||||
| i magnitude | 20.62 (0.04) | 20.62 (0.04) | 20.62 (0.04) | |||||||
| z magnitude | 21.06 (0.2) | 21.06 (0.2) | 21.06 (0.2) | |||||||
| G magnitude | 20.01 (0.04) | 20.07 | 20.01 (0.005) | |||||||
| BP magnitude | 20.00 (0.04) | 19.79 | ||||||||
| RP magnitude | 20.29 (0.07) | 20.10 | ||||||||
| Pan g magnitude | 19.86 (0.01) | |||||||||
| Pan r magnitude | 20.27 (0.02) | |||||||||
| Pan i magnitude | 20.64 (0.02) | |||||||||
| Pan z magnitude | 20.77 (0.05) | |||||||||
| Pan y magnitude | 19.94 (0.2) | |||||||||
| E(B-V) | 0.027 | |||||||||
* Constant surface field
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