Debris finder, PolCor-2
An instrument to detect debris around young stars

Content:

1. Introduction
2. Exoplanets
3. Stars dust disc
4. Albanova, research center in Stockholm
5. The instrument, PolCor-2
6. The mechanical box's surfaces
7. Coronagraph
8. Mirror set one
9. Filters
10. Lyot Stop
11. Servo motors
12. Polarizer
13. Parabolic and flat mirror set two
14. Lucky Imaging
15. The camera
16. The computer
17. Test of the instrument that has been done
18. Conclusion
19. End of demonstration
20. Follow up with links of information about coronagraphs

2: Exoplanets

First some background:

Technology development is progressing, you have probably read about it since 1992 when the first exoplanet was detected, today (2017) we have detected over 3500 planets around other stars than our Sun.

One technology is based on studying the Doppler shift arising from the star as the planet "pull" on it by gravity when they go into orbit. Most of the "new" Exoplanets has been discovered by the Satellite Kepler by monitoring the brightnees of stars and how it changes when a Exoplanet passing over the stars disc.

• https://en.wikipedia.org/ wiki/Exoplanet (Exoplanet, Wiki)
• https://en.wikipedia.org/ wiki/ Kepler_(spacecraft) (Kepler, Wiki)

There are other things than studying the planets indirectly that is of interest. A very interesting area to research and study is the surrounding of the stars, including how our Sun's planetary system formed and evolved.