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Good Red Friday morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Chamaeleon II Dark Cloud." The constellation Chamaeleon lies near the South Celestial Pole and is sometimes called the Frying Pan by Australians (G'day Cynthia Croft). The Chamaeleon Complex is a star forming region that includes the Chamaeleon II dark cloud. See the reddish glow near the image center? It indicates one or more Herbig-Haro objects, narrow jets of partially ionized gas ejected by newly formed stars and colliding with nearby clouds of gas and dust at speeds of several hundred kilometers per second.
Astronomy Picture of the Day
Posted from apod.nasa.gov
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Good "Red" Friday Maj William W. 'Bill' Price! There isn't much to say about a dark cloud in space, but perhaps it is not common and therefore becomes an interesting cosmic phenomenon... I could not find a video to further delineate this Constellation, but I did find some interesting facts in Wikipedia...
Background information:
"Chamaeleon was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman. It first appeared on a 35-cm diameter celestial globe published in 1597 (or 1598) in Amsterdam by Plancius and Jodocus Hondius. Johann Bayer was the first uranographer to put Chamaeleon in a celestial atlas. It was one of many constellations created by European explorers in the 15th and 16th centuries out of unfamiliar Southern Hemisphere stars.
Deep-sky objects
In 1999, a nearby open cluster was discovered centered on the star η Chamaeleontis. The cluster, known as either the Eta Chamaeleontis cluster or Mamajek 1, is 8 million years old, and lies 316 light years from Earth.
The constellation contains a number of molecular clouds (the Chamaeleon dark clouds) that are forming low-mass T Tauri stars. The cloud complex lies some 400 to 600 light years from Earth, and contains tens of thousands of solar masses of gas and dust. The most prominent cluster of T Tauri stars and young B-type stars are in the Chamaeleon I cloud, and are associated with the reflection nebula IC 2631.
Chamaeleon contains one planetary nebula, NGC 3195, which is fairly faint. It appears in a telescope at about the same apparent size as Jupiter." Wikipedia
Maj Marty Hogan COL Mikel J. Burroughs Lt Col Charlie Brown 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 MSgt Robert "Rock" Aldi SrA Marianne Santangelo Sgt Albert Castro
Background information:
"Chamaeleon was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman. It first appeared on a 35-cm diameter celestial globe published in 1597 (or 1598) in Amsterdam by Plancius and Jodocus Hondius. Johann Bayer was the first uranographer to put Chamaeleon in a celestial atlas. It was one of many constellations created by European explorers in the 15th and 16th centuries out of unfamiliar Southern Hemisphere stars.
Deep-sky objects
In 1999, a nearby open cluster was discovered centered on the star η Chamaeleontis. The cluster, known as either the Eta Chamaeleontis cluster or Mamajek 1, is 8 million years old, and lies 316 light years from Earth.
The constellation contains a number of molecular clouds (the Chamaeleon dark clouds) that are forming low-mass T Tauri stars. The cloud complex lies some 400 to 600 light years from Earth, and contains tens of thousands of solar masses of gas and dust. The most prominent cluster of T Tauri stars and young B-type stars are in the Chamaeleon I cloud, and are associated with the reflection nebula IC 2631.
Chamaeleon contains one planetary nebula, NGC 3195, which is fairly faint. It appears in a telescope at about the same apparent size as Jupiter." Wikipedia
Maj Marty Hogan COL Mikel J. Burroughs Lt Col Charlie Brown 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 MSgt Robert "Rock" Aldi SrA Marianne Santangelo Sgt Albert Castro
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