Find the planet
The Kepler space telescope measured this star's brightness every 30 minutes for 33 days in 2009. Every so often it dims by less than one percent. Lay the markers on the dips to find out how often.
The star's brightness, 33 days
Drag the orange markers
Under every marker, stacked
2.750DAYS BETWEEN MARKERS
Deepest dip
0.00%
HAT-P-7 b
- It orbits its star once every 2.205 days.
- Each pass blocks 0.67% of the star's light, so the planet is about 8.2% as wide as the star.
- The star is about twice as wide as the Sun. That makes the planet roughly 1.6 times as wide as Jupiter. Published measurements range from 1.5 to 1.6.
- You measured all of that from the dip.
Data: NASA Kepler mission, quarter 1, 13 May to 15 June 2009. Star KIC 10666592 (HAT-P-7). From the MAST archive, archive.stsci.edu.