From Afropedia.world
 A diagram of the Kepler-22b System, compared to our Inner Solar System. | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 16m 52.1904s[2] |
| Declination | +47° 53′ 03.948″[2] |
| Apparent magnitude (V) | 11.664[3] |
| Characteristics | |
| Spectral type | G5V[4] |
| Astrometry | |
| Proper motion (μ) | RA: Error in {{val}}: first argument is not a valid number or requires too much precision to display.[2] mas/yr Dec.: Error in {{val}}: first argument is not a valid number or requires too much precision to display.[2] mas/yr |
| Parallax (π) | 5.1088 ± 0.0242[2] mas |
| Distance | Template:ErrorBar2 ly (Template:ErrorBar2 pc) |
| Absolute magnitude (MV) | ~5.27 |
| Absolute bolometric magnitude (Mbol) | ~4.98 |
| Details | |
| Mass | 0.970 ± 0.060[3] M☉ |
| Radius | 0.979 ± 0.020[3] R☉ |
| Luminosity | 0.79 ± 0.04[3] L☉ |
| Luminosity (bolometric) | 0.8 L☉ |
| Luminosity (visual, LV) | ~0.67 L☉ |
| Temperature | 5518 ± 44[3] K |
| Metallicity [Fe/H] | –0.29 ± 0.06[3] dex |
| Rotational velocity (v sin i) | 0.6 ± 1.0[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-22 is a sun-like star in the northern constellation of Cygnus, the swan, that is orbited by a planet found to be unequivocally within the star's habitable zone. It is located at the celestial coordinates: Right Ascension 19h 16m 52.2s, Declination +47° 53′ 4.2″.[6] With an apparent visual magnitude of 11.7,[3] this star is too faint to be seen with the naked eye. It can be viewed with a telescope having an aperture of at least 4 in (10 cm).[7] The estimated distance to Kepler-22 is 638 light-years (196 parsecs).[2]
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedIAU_const - ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Cite error: Invalid
<ref>tag; no text was provided for refs namedGaia DR2 - ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Cite error: Invalid
<ref>tag; no text was provided for refs namednasa_ames - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedepe - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSIMBAD - ↑ "Kepler Discoveries". 2011-12-05.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedsherrod_koed2003
