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Cristiano

I'm an astronomy enthusiast.
Here's my lean and mean site: http://cristianopi.altervista.org/as/

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Top posts (30) All Questions Answers | Votes Newest

7 ISS - Tiangong 2 minimum safe distance Dec 31 '17
7 How often has (or how common is it for) the ISS's orbit been propulsive lowered intentionally? Dec 28 '18
5 How much of a drag is it, orbiting the Earth in a space suit? Feb 13
5 Why are Tiangong-1's Apogee and Perigee Graphs Wobbly? Jan 16
5 What are the causes of these episodes of faster than average altitude loss by the ISS? Nov 18 '18
5 No reboosts for the ISS Nov 17 '18
5 Tiangong-1 reentry Jul 18 '17
4 Did Tiangong-1 turn the engines on? Feb 1 '18
4 PSLV-C39/IRNSS-1H TLE accuracy Dec 15 '17
4 When (roughly) will North Korea's Kwangmyongsong-4 satellite re-enter? Jan 11
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