Kepler-452
| Kepler-452 | |
 Ett diagram över Kepler-452b systemet. | |
| Observationsdata | |
|---|---|
| Stjärnbild | Svanen |
| Stjärntyp | |
| Spektraltyp | G2V |
Kepler-452 är en GV-stjärna som ligger 1 400 ljusår från jorden i stjärnbilden Svanen.[1] Den har samma temperatur som solen men är 20 procent ljusare och 11 procent större i diameter.[2] Den har åtminstone en exoplanet, Kepler-452b, som upptäcktes den 23 juli 2015. Det skulle ta en mänsklig rymdfarkost cirka 25 miljoner år att ta sig till Keplersystemet.
Referenser
- ^ Witze, Alexandra (23 juli 2023). ”NASA spies Earth-sized exoplanet orbiting Sun-like star”. Nature. http://www.nature.com/news/nasa-spies-earth-sized-exoplanet-orbiting-sun-like-star-1.18048. Läst 26 juli 2015.
- ^ Chou, Felicia; Johnson, Michelle (23 juli 2023). ”NASA’s Kepler Mission Discovers Bigger, Older Cousin to Earth”. NASA. http://www.nasa.gov/press-release/nasa-kepler-mission-discovers-bigger-older-cousin-to-earth. Läst 26 juli 2015.
Media som används på denna webbplats
Kepler-452b System.jpg
This size and scale of the Kepler-452 system compared alongside the Kepler-186 system and the solar system. Kepler-186 is a miniature solar system that would fit entirely inside the orbit of Mercury. The habitable zone of Kepler-186 is very small compared to that of Kepler-452 or the sun because it is a much smaller, cooler star. The size and extent of the habitable zone of Kepler-452 is nearly the same as that of the sun, but is slightly bigger because Kepler-452 is somewhat older, bigger and brighter. The size of the orbit of Kepler-452b is nearly the same as that of the Earth at 1.05 AU. Kepler-452b orbits its star once every 385 days.
This size and scale of the Kepler-452 system compared alongside the Kepler-186 system and the solar system. Kepler-186 is a miniature solar system that would fit entirely inside the orbit of Mercury. The habitable zone of Kepler-186 is very small compared to that of Kepler-452 or the sun because it is a much smaller, cooler star. The size and extent of the habitable zone of Kepler-452 is nearly the same as that of the sun, but is slightly bigger because Kepler-452 is somewhat older, bigger and brighter. The size of the orbit of Kepler-452b is nearly the same as that of the Earth at 1.05 AU. Kepler-452b orbits its star once every 385 days.