Skynet 7-14-18 Parallax Distances Explained! & Tour of Constellation Libra 9PM CT |

SKYNET!!!! 9PM CT – 10:30PM CT

Saturday’s Topic: “Parallax Distances Explained!” and “Tour of the Constellation Libra”

Net Controls: Mike KG5P & Tom KE5ICX
Afterglow Movie 10:30PM:
“Ice Planet” (2001)
2-Meter Repeater W5FC: 146.880MHz, PL 110.9, –
Echolink: W5FC-R, node 37247.

Youtube.com Search “DARC Skynet”
Facebook.com Search “DARC Skynet”
Twitch.tv Search “KE5ICX”

Direct Video Link: https://www.youtube.com/channel/UCishlh8WmW7OXy9Q6sxsaag

Yahoo Groups: http://groups.yahoo.com/group/skynet
Facebook: http://www.facebook.com/groups/306498286059167/
Saturday’s DARC SkyNet is at 9PM CT.

Discussion topic of the evening.

Astronomical Parallax – Mike KG5P

1. What is parallax in general?
2. How is it used to determine distances to astronomical objects.
3. Provide some back-of-the envelope calculations of examples.
4. Describe its limitations.
6. Describe other methods of determining astronomical distances.

Photo #1 Parallax Displacement from Earth’s Relative Location
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37135327_2559279924098175_2456214156458590208_n.jpg?_nc_cat=0&oh=f4dd5d5cba00f96395c1614d577415ba&oe=5BD99CA1

Photo #2 Stellar Parallax Motion from Annual Parallax
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37200794_2559279784098189_8690419938914992128_n.jpg?_nc_cat=0&oh=41ac807f1a1f10f089200e9723b68c1c&oe=5BDC9469

Photo #3 Stellar Parallax Schematic
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37107227_2559279710764863_6119992083680854016_n.jpg?_nc_cat=0&oh=88cd7ca59b4a08851bea1b2904300a62&oe=5BA1891B

Photo #4 Proxima Centauri Parallax
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37133153_2559279847431516_865723067362443264_n.jpg?_nc_cat=0&oh=0c117c537fd3d102dc7aff0e5558e8e2&oe=5BC95FE0

Photo #5 Mathematical Discussion 1
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37189661_2559279797431521_6186284014836383744_n.jpg?_nc_cat=0&oh=fedb5948804aaceba5ed0a007a5dc4de&oe=5B9E9A5D

Photo #6 Parallax Trigonometric Formula
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37107928_2559279697431531_6765717382724845568_n.jpg?_nc_cat=0&oh=b69aef3bd8b595a779582e9cdbe2e63b&oe=5BE04830

Photo #7 Mathematical Discussion 2
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37188694_2559279720764862_4024863326809882624_n.jpg?_nc_cat=0&oh=0844bdb3ad51db38606e6d1d1d699a52&oe=5BE9900E

Photo #8 Hubble Parallax
https://scontent-dfw5-2.xx.fbcdn.net/v/t1.0-9/37204395_2559279907431510_5633671055559098368_n.jpg?_nc_cat=0&oh=cf9484ce57d87ee6b8dac920f52d5587&oe=5BDB655E

What can you see in the sky over the next couple of weeks?

West, One Hour After Sunset

http://en.es-static.us/upl/2018/07/2018-july-14-15-16-moon-mercury-venus.jpg

A featured constellation or object(s) or topic.