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Good Sunday morning RP. Today's Astronomy Picture of the Day (APOD) is titled "A Circumhorizontal Arc Over Ohio." A member of the family of halos, caused by the refraction of sunlight by ice crystals in the atmosphere, a circumhorizon arc lies parallel to the horizon. For the arc to be visible, the Sun must be at least 58 degrees high in a sky where cirrus clouds are present. Ice-crystals that compose the cirrus cloud must also be aligned horizontally to properly refract sunlight in a collectively similar manner. As a result, visible circumhorizontal arcs are relatively rare.
Astronomy Picture of the Day
Posted from apod.nasa.gov
NASA
Space
Science
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Edited >1 y ago
Posted >1 y ago
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Maj William W. 'Bill' Price good day my friend, thank you for the Astronomy Picture of the Day so delightful. Have a great day.
Maj Marty Hogan SGT (Join to see) SPC Margaret Higgins SGT David A. 'Cowboy' Groth CW5 Jack CardwellCOL Mikel J. Burroughs CPL Dave Hoover SSG William Jones Lt Col Charlie Brown PO1 H Gene Lawrence Lt Col John (Jack) Christensen SCPO Morris Ramsey TSgt Joe C. PVT Mark Zehner LTC (Join to see) PO1 Tony Holland PO1 William "Chip" Nagel Sgt (Join to see) LTC Stephen F.
Maj Marty Hogan SGT (Join to see) SPC Margaret Higgins SGT David A. 'Cowboy' Groth CW5 Jack CardwellCOL Mikel J. Burroughs CPL Dave Hoover SSG William Jones Lt Col Charlie Brown PO1 H Gene Lawrence Lt Col John (Jack) Christensen SCPO Morris Ramsey TSgt Joe C. PVT Mark Zehner LTC (Join to see) PO1 Tony Holland PO1 William "Chip" Nagel Sgt (Join to see) LTC Stephen F.
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Thank you, my friend Maj William W. 'Bill' Price for posting the NASA picture of the day fro May 19, 2019 entitled "A Circumhorizontal Arc Over Ohio."
A horizontal rainbow image - perhaps there is a pot of gold at the center :-)
Image: A Circumhorizontal Arc Over Ohio - Image Credit & Copyright- Todd Sladoje
"Explanation: Why would clouds appear to be different colors? The reason here is that ice crystals in distant cirrus clouds are acting like little floating prisms. Sometimes known as a fire rainbow for its flame-like appearance, a circumhorizon arc lies parallel to the horizon. For a circumhorizontal arc to be visible, the Sun must be at least 58 degrees high in a sky where cirrus clouds are present. Furthermore, the numerous, flat, hexagonal ice-crystals that compose the cirrus cloud must be aligned horizontally to properly refract sunlight in a collectively similar manner. Therefore, circumhorizontal arcs are quite unusual to see. This circumhorizon display was photographed through a polarized lens above Dublin, Ohio in 2009."
Thank you, my friends SFC Joe S. Davis Jr., MSM, DSL and TSgt Joe C. for mentioning me.
FYI COL Mikel J. Burroughs LTC Orlando Illi Maj Bill Smith, Ph.D. Maj William W. 'Bill' Price CPT Jack Durish Capt Tom Brown CMSgt (Join to see) MSG Andrew White SFC William Farrell SGT (Join to see) Sgt Albert Castro SSgt Boyd Herrst SGT Charles H. Hawes SSG Martin Byrne PO1 William "Chip" Nagel CPT Gabe SnellLTC Greg Henning
A horizontal rainbow image - perhaps there is a pot of gold at the center :-)
Image: A Circumhorizontal Arc Over Ohio - Image Credit & Copyright- Todd Sladoje
"Explanation: Why would clouds appear to be different colors? The reason here is that ice crystals in distant cirrus clouds are acting like little floating prisms. Sometimes known as a fire rainbow for its flame-like appearance, a circumhorizon arc lies parallel to the horizon. For a circumhorizontal arc to be visible, the Sun must be at least 58 degrees high in a sky where cirrus clouds are present. Furthermore, the numerous, flat, hexagonal ice-crystals that compose the cirrus cloud must be aligned horizontally to properly refract sunlight in a collectively similar manner. Therefore, circumhorizontal arcs are quite unusual to see. This circumhorizon display was photographed through a polarized lens above Dublin, Ohio in 2009."
Thank you, my friends SFC Joe S. Davis Jr., MSM, DSL and TSgt Joe C. for mentioning me.
FYI COL Mikel J. Burroughs LTC Orlando Illi Maj Bill Smith, Ph.D. Maj William W. 'Bill' Price CPT Jack Durish Capt Tom Brown CMSgt (Join to see) MSG Andrew White SFC William Farrell SGT (Join to see) Sgt Albert Castro SSgt Boyd Herrst SGT Charles H. Hawes SSG Martin Byrne PO1 William "Chip" Nagel CPT Gabe SnellLTC Greg Henning
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LTC Wayne Brandon
That is quite a sight - something I've not seen before.
I did have the distinct privilege of driving through a rainbow on I 80 in Southern Illinois many years ago. Something I will never forget.
Thanks for posting this one and enjoy your evening.
I did have the distinct privilege of driving through a rainbow on I 80 in Southern Illinois many years ago. Something I will never forget.
Thanks for posting this one and enjoy your evening.
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SMSgt Lawrence McCarter
I've seen a few rainbows but never one that went horizontal like that, getting a photo of it I'm sure is quite rare. Thanks for the photo and the information explaining jusy how that happened.
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Wow, this is a really neat photo from Ohio Maj William W. 'Bill' Price!
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COL Mikel J. Burroughs Maj Marty Hogan LTC Stephen F. CW5 Jack Cardwell TSgt David L. Cpl (Join to see) Maj William W. 'Bill' Price CPL Dave Hoover SPC Douglas Bolton LTC Greg Henning Maj Bill Smith, Ph.D. Alan K. Lt Col Charlie Brown PO2 Kevin Parker SP5 Mark Kuzinski PO1 John Johnson Sgt (Join to see) PVT Mark Zehner Col Carl Whicker SFC Joe S. Davis Jr., MSM, DSL
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COL Mikel J. Burroughs Maj Marty Hogan LTC Stephen F. CW5 Jack Cardwell TSgt David L. Cpl (Join to see) Maj William W. 'Bill' Price CPL Dave Hoover SPC Douglas Bolton LTC Greg Henning Maj Bill Smith, Ph.D. Alan K. Lt Col Charlie Brown PO2 Kevin Parker SP5 Mark Kuzinski PO1 John Johnson Sgt (Join to see) PVT Mark Zehner Col Carl Whicker SFC Joe S. Davis Jr., MSM, DSL
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