NGC 6670 Merging pair of edge on spiral galaxies

NGC 6670 is a pair of of interacting edge on galaxies. Though catalogs consider it a triple or even quadruple galaxy it is seen in a Hubble Space Telescope image to be just a pair of galaxies being torn apart and reassembled due to their interaction. You can read more about it at http://hubblesite.org/newscenter/arc...8/16/image/ad/ and see the Hubble image of this train wreck. (This link suddenly went bad. Just the image can be seen at http://imgsrc.hubblesite.org/hu/db/i...d-full_jpg.jpg ) Both galaxies are strong in HII emission though the eastern one is considered stronger in this respect. Oddly it is the western one that is reddest in my image. Apparently that comes from red stars rather than HII activity. NED classifies only the eastern member as a spiral. Though notes consider the small blue cloud at the far eastern end of the mess as being a blue compact however the HST image shows this to be in error. I never did figure out what those saying it is 4 galaxies are seeing as the fourth object. Only candidate is CGCG 301-032 to the southeast at the same redshift but it is seems too far way to be the fourth member.

NGC 6670 is located in Draco at a distance of nearly 400 million light-years by redshift. It is in a part of the sky not covered by many surveys including the Sloan Digital Sky Survey so little information is available. What few are listed as galaxies at NED, with or without redshift data are listed in my annotated image. Many stars and galaxies are listed at NED simply as UvS for being an Ultraviolet Source. None with redshift data and all listed by approximate coordinates. These have a fairly large error circle making identification difficult in some areas. With many hundred listed I only identified a handful of the brighter ones, all with the GALEXASC prefix.

14" LX200R @ f/10, L=6x10' RGB=2x10', STL-11000XM, Paramount ME

Rick

Rick,

colour is outstanding in this image, didn't think it was possible to show
the different parts of these tiny galaxies so clearly.

Stefan


"WA0CKY" schrieb im Newsbeitrag ...


NGC 6670 is a pair of of interacting edge on galaxies. Though catalogs
consider it a triple or even quadruple galaxy it is seen in a Hubble
Space Telescope image to be just a pair of galaxies being torn apart and
reassembled due to their interaction. You can read more about it at
http://hubblesite.org/newscenter/arc...8/16/image/ad/ and
see the Hubble image of this train wreck. (This link suddenly went bad.
Just the image can be seen at
http://imgsrc.hubblesite.org/hu/db/i...d-full_jpg.jpg )
Both galaxies are strong in HII emission though the eastern one is
considered stronger in this respect. Oddly it is the western one that
is reddest in my image. Apparently that comes from red stars rather
than HII activity. NED classifies only the eastern member as a spiral.
Though notes consider the small blue cloud at the far eastern end of the
mess as being a blue compact however the HST image shows this to be in
error. I never did figure out what those saying it is 4 galaxies are
seeing as the fourth object. Only candidate is CGCG 301-032 to the
southeast at the same redshift but it is seems too far way to be the
fourth member.

NGC 6670 is located in Draco at a distance of nearly 400 million
light-years by redshift. It is in a part of the sky not covered by many
surveys including the Sloan Digital Sky Survey so little information is
available. What few are listed as galaxies at NED, with or without
redshift data are listed in my annotated image. Many stars and galaxies
are listed at NED simply as UvS for being an Ultraviolet Source. None
with redshift data and all listed by approximate coordinates. These
have a fairly large error circle making identification difficult in some
areas. With many hundred listed I only identified a handful of the
brighter ones, all with the GALEXASC prefix.

14" LX200R @ f/10, L=6x10' RGB=2x10', STL-11000XM, Paramount ME

Rick


--
WA0CKY