Telescope Reading Review

1. Telescope Reading Review

2. In a Lonely Cosmos • 1) 95 million pixel & 55 inch • 2) Giant planets close to the star will make the star wobble • Giants have a lot of mass which makes the star wobble • Close to the star means short revolution time

5. In a Lonely Cosmos • 3) Kepler will look at one spot, look at 100,000 stars for a long period of time and look for a planet eclipsing the star (transiting). One picture per half hour for three years. • 4) Massive planets should be gas giants and found far from the sun. • 5) One small area for a long period of time.

6. In a Lonely Cosmos • What conditions are needed for a planet to be detected by Kepler? • Would the Earth be detectable by Kepler?

7. Green Bank Telescope • 2) Big and steerable • 4) Needs to be very big because • Radio is long wavelength, therefore poor resolution • Radio is very veryveryvery weak

8. Nov 16, 1988 Nov 15, 1988

11. GBT • 5) Offset arm to reduce interference

12. GBT • 6) Active Optics • Adjust for sag

13. GBT • Radio Interference • Transmitting radio • Electric motors and generators

14. Spectra Lab

15. Bohr Model

18. Mercury Telescope

20. Liquid Mirror Telescope • Horizontal, constant spin rate, no vibrations • No atmosphere, low gravity • Low mass therefore can be sent to the moon 7. Can not steer it, like Arecibo

21. Describe the best telescope