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Have you ever seen one of these? I haven't but it looks amazing
vi-AABJkdi
Posted from msn.com
Science
Astronomy
Posted >1 y ago
Responses: 12
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Good Wednesday morning Lt Col Charlie Brown. I haven't seen one in person that I remember, but did add a video clip awhile back... This Fire Rainbow is also known as a "Circumhorizontal Arc".
Wikipedia describes it as follows: "A circumhorizontal arc is an optical phenomenon that belongs to the family of ice halos formed by the refraction of sun- or moonlight in plate-shaped ice crystals suspended in the atmosphere, typically in cirrus or cirrostratus clouds. In its full form, the arc has the appearance of a large, brightly spectrum-coloured band (red being the topmost colour) running parallel to the horizon, located far below the Sun or Moon. The distance between the arc and the Sun or Moon is twice as far as the common 22-degree halo. Often, when the halo-forming cloud is small or patchy, only fragments of the arc are seen. As with all halos, it can be caused by the Sun as well as (but much more rarely) the Moon."
"The halo is formed by sunlight entering horizontally-oriented, flat, hexagonal ice crystals through a vertical side face and leaving through the near horizontal bottom face (plate thickness does not affect the formation of the halo). In principle, Parry oriented column crystals may also produce the arc, although this is rare. The 90° inclination between the ray entrance and exit faces produce the well-separated spectral colours. The arc has a considerable angular extent and thus, rarely is complete. When only fragments of a cirrus cloud are in the appropriate sky and sun position, they may appear to shine with spectral colours."
Maj William W. 'Bill' Price Maj Marty Hogan COL Mikel J. Burroughs SSG Byron Howard Sr LTC Stephen F. Col Carl Whicker Maj Robert Thornton CWO3 Dennis M. LTC Wayne Brandon Sgt Deborah Cornatzer PO3 Bob McCord CW5 Jack Cardwell TSgt Joe C. SFC Stephen Lucas SMSgt Lawrence McCarter Lt Col John (Jack) Christensen SP5 Mark Kuzinski SPC Douglas Bolton SPC Mark Huddleston
Wikipedia describes it as follows: "A circumhorizontal arc is an optical phenomenon that belongs to the family of ice halos formed by the refraction of sun- or moonlight in plate-shaped ice crystals suspended in the atmosphere, typically in cirrus or cirrostratus clouds. In its full form, the arc has the appearance of a large, brightly spectrum-coloured band (red being the topmost colour) running parallel to the horizon, located far below the Sun or Moon. The distance between the arc and the Sun or Moon is twice as far as the common 22-degree halo. Often, when the halo-forming cloud is small or patchy, only fragments of the arc are seen. As with all halos, it can be caused by the Sun as well as (but much more rarely) the Moon."
"The halo is formed by sunlight entering horizontally-oriented, flat, hexagonal ice crystals through a vertical side face and leaving through the near horizontal bottom face (plate thickness does not affect the formation of the halo). In principle, Parry oriented column crystals may also produce the arc, although this is rare. The 90° inclination between the ray entrance and exit faces produce the well-separated spectral colours. The arc has a considerable angular extent and thus, rarely is complete. When only fragments of a cirrus cloud are in the appropriate sky and sun position, they may appear to shine with spectral colours."
Maj William W. 'Bill' Price Maj Marty Hogan COL Mikel J. Burroughs SSG Byron Howard Sr LTC Stephen F. Col Carl Whicker Maj Robert Thornton CWO3 Dennis M. LTC Wayne Brandon Sgt Deborah Cornatzer PO3 Bob McCord CW5 Jack Cardwell TSgt Joe C. SFC Stephen Lucas SMSgt Lawrence McCarter Lt Col John (Jack) Christensen SP5 Mark Kuzinski SPC Douglas Bolton SPC Mark Huddleston
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SMSgt Lawrence McCarter LT Brad McInnis PO3 Bob McCord CW3 Dick McManus SGT John " Mac " McConnell CWO3 Dennis M. MSgt Stephen Council LTC (Join to see) LTC Stephan PorterLTC Stephen C. LTC Greg Henning SGT Gregory Lawritson Maj William W. 'Bill' Price Maj Bill Smith, Ph.D. SGT Jim Arnold Maj Robert Thornton Lt Col John (Jack) Christensen SFC Francisco Rosario LTC (Join to see) Sgt Deborah Cornatzer
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