Posted on Feb 12, 2020
APOD: 2020 February 12 - Star Trails of the North and South
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Good morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Star Trails of the North and South." This image is a composite of 325 exposures taken 30 seconds apart, and starting just before sunset earlier this month (Feb 2020). Looking west, the bright streak behind the lone tree is the planet Venus setting. North is to the right (notice the star arcs?), and south is to the left. The light source at the top center of the image is the Moon. The different use of both sunlight and moonlight to capture the snowy field, the tree, and the stars is (to me) mesmerizing.
APOD: 2020 February 12 - Star Trails of the North and South
Posted from apod.nasa.gov
NASA
Space
Science
Photography
Astronomy
Posted 5 y ago
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Good morning Maj William W. 'Bill' Price
LTC Stephen F. SP5 Mark Kuzinski COL Mikel J. Burroughs SMSgt Lawrence McCarter Maj William W. 'Bill' Price SPC Margaret HigginsMaj Bill Smith, Ph.D. SGT Steve McFarlandLTC (Join to see) PO3 Craig Phillips Lt Col Charlie Brown SSG Michael Noll PO1 H Gene Lawrence TSgt Joe C. Lt Col John (Jack) Christensen Sgt (Join to see)SFC Joe S. Davis Jr., MSM, DSL SSG Donald H "Don" Bates Cpl (Join to see) PVT Mark Zehner
LTC Stephen F. SP5 Mark Kuzinski COL Mikel J. Burroughs SMSgt Lawrence McCarter Maj William W. 'Bill' Price SPC Margaret HigginsMaj Bill Smith, Ph.D. SGT Steve McFarlandLTC (Join to see) PO3 Craig Phillips Lt Col Charlie Brown SSG Michael Noll PO1 H Gene Lawrence TSgt Joe C. Lt Col John (Jack) Christensen Sgt (Join to see)SFC Joe S. Davis Jr., MSM, DSL SSG Donald H "Don" Bates Cpl (Join to see) PVT Mark Zehner
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Antoine Dufour - Star Trails Part I (Polaris) & Part II (Sigma Octantis)
'Back & Forth' available in high resolution studio masters, CDs, LPs, Mp3s, & Guitar Tab format at http://www.candyrat.com/artists/antoinedufour/ Also availa...
Thank you, my friend Maj William W. 'Bill' Price for posting the NASA Astronomy composite Picture of the Day (AcPOD) for Wednesday, February 12, 2002 entitled "Star Trails of the North and South."
Image: Star Trails of the North and South - Image Credit & Copyright - Saeid Parchini
"Explanation: What divides the north from the south? It all has to do with the spin of the Earth. On Earth's surface, the equator is the dividing line, but on Earth's sky, the dividing line is the Celestial Equator -- the equator's projection onto the sky. You likely can't see the Earth's equator around you, but anyone with a clear night sky can find the Celestial Equator by watching stars move. Just locate the dividing line between stars that arc north and stars that arc south. Were you on Earth's equator, the Celestial Equator would go straight up and down. In general, the angle between the Celestial Equator and the vertical is your latitude. The featured image combines 325 photos taken every 30 seconds over 162 minutes. Taken soon after sunset earlier this month, moonlight illuminates a snowy and desolate scene in northwest Iran. The bright streak behind the lone tree is the planet Venus setting."
Thank you, my friend Maj Marty Hogan for mentioning me
Antoine Dufour - Star Trails Part I (Polaris) & Part II (Sigma Octantis)
https://www.youtube.com/watch?v=vUEaxElS2Ps
FYI Cynthia Croft Col Carl Whicker Maj Robert Thornton Maj Bill Smith, Ph.D. Maj Kim Patterson SSG Michael Noll PO1 H Gene Lawrence SPC Margaret Higgins Sgt Kelli Mays SPC Chris Bayner-Cwik SP5 Jeannie Carle Lt Col John (Jack) Christensen Lt Col Charlie Brown SP5 Geoffrey Vannerson PO1 William "Chip" Nagel SMSgt Lawrence McCarter COL Mikel J. Burroughs SGT Steve McFarland
Image: Star Trails of the North and South - Image Credit & Copyright - Saeid Parchini
"Explanation: What divides the north from the south? It all has to do with the spin of the Earth. On Earth's surface, the equator is the dividing line, but on Earth's sky, the dividing line is the Celestial Equator -- the equator's projection onto the sky. You likely can't see the Earth's equator around you, but anyone with a clear night sky can find the Celestial Equator by watching stars move. Just locate the dividing line between stars that arc north and stars that arc south. Were you on Earth's equator, the Celestial Equator would go straight up and down. In general, the angle between the Celestial Equator and the vertical is your latitude. The featured image combines 325 photos taken every 30 seconds over 162 minutes. Taken soon after sunset earlier this month, moonlight illuminates a snowy and desolate scene in northwest Iran. The bright streak behind the lone tree is the planet Venus setting."
Thank you, my friend Maj Marty Hogan for mentioning me
Antoine Dufour - Star Trails Part I (Polaris) & Part II (Sigma Octantis)
https://www.youtube.com/watch?v=vUEaxElS2Ps
FYI Cynthia Croft Col Carl Whicker Maj Robert Thornton Maj Bill Smith, Ph.D. Maj Kim Patterson SSG Michael Noll PO1 H Gene Lawrence SPC Margaret Higgins Sgt Kelli Mays SPC Chris Bayner-Cwik SP5 Jeannie Carle Lt Col John (Jack) Christensen Lt Col Charlie Brown SP5 Geoffrey Vannerson PO1 William "Chip" Nagel SMSgt Lawrence McCarter COL Mikel J. Burroughs SGT Steve McFarland
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