TITLE

Observing and Imaging Virtually Unknown Supernova Remnants-Part VIII

AUTHOR(S)
Gates, Bill
PUB. DATE
September 2010
SOURCE
Amateur Astronomy Magazine;Fall2010, Issue 67, p14
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
The article describes the optical images of several supernova remnants that are invisible without enhancement on the Palomar Observatory Sky Survey. The western section of the optical component of HB 21 in Cygnus shows strong sulfur emission. The remnant G 69.7+1.0 in Cygnus shows an incomplete arc of shell around the bright star HD190430. The G 69.4+2.4 in Cygnus is only about seven feet long but very strong in OIII emission.
ACCESSION #
64369719

 

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