ASTRO: NGC 6632 Another Arp skipped

NGC 6632 is a rather peculiar galaxy in Hercules about 210 million light
years distant per its redshift measurement. It is classed as SA(rs)bc
at NED, simply as Sb by the NGC project and several other sources. I
consider it an Arp-like galaxy due to the odd southern arm that appears
rather disrupted by some tidal effect. It looks severely warped as
well. Though this might be an illusion. The source of this is hard to
determine however. To its southwest is the very weird galaxy 2MASX
J18245534+2730302. It has a rather odd blue core at its north end and a
rather red plume going south from it so looks quite comet-like. It is
best seen in the enlarged, cropped image. No other galaxy but for NGC
6632 in the image has a redshift measurement that I found at NED. So we
can't tell if 2MASX J18245534+2730302 is at the same distance as NGC
6632 or not. If it is, it's odd distortion would make it a likely
candidate for what tore up NGC 6632's southern arm.

Another oddity is the color of the galaxy. Overall it is rather red.
Very few hot blue stars are seen in it. Usually a tidally disrupted
galaxy has a lot of star formation going on and thus has some really
blue stars. That doesn't seem to be the case here. At first I thought
something went wrong with my color balance but any attempt to change the
color of the galaxy to classic spiral colors resulted in the star colors
getting well out of whack. Most amateur color images show more normal
coloration though a professional image and one amateur one comes up with
colors much like mine. I do need to revisit this one just to be sure
something didn't screw up the color.

With no redshift data I didn't prepare an annotated image.

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Rick,

a nice spiral.
Perhaps you should start your own catalogue of strange objects :-)

Stefan

"Rick Johnson" schrieb im Newsbeitrag
.com...
NGC 6632 is a rather peculiar galaxy in Hercules about 210 million light
years distant per its redshift measurement. It is classed as SA(rs)bc
at NED, simply as Sb by the NGC project and several other sources. I
consider it an Arp-like galaxy due to the odd southern arm that appears
rather disrupted by some tidal effect. It looks severely warped as
well. Though this might be an illusion. The source of this is hard to
determine however. To its southwest is the very weird galaxy 2MASX
J18245534+2730302. It has a rather odd blue core at its north end and a
rather red plume going south from it so looks quite comet-like. It is
best seen in the enlarged, cropped image. No other galaxy but for NGC
6632 in the image has a redshift measurement that I found at NED. So we
can't tell if 2MASX J18245534+2730302 is at the same distance as NGC
6632 or not. If it is, it's odd distortion would make it a likely
candidate for what tore up NGC 6632's southern arm.

Another oddity is the color of the galaxy. Overall it is rather red.
Very few hot blue stars are seen in it. Usually a tidally disrupted
galaxy has a lot of star formation going on and thus has some really
blue stars. That doesn't seem to be the case here. At first I thought
something went wrong with my color balance but any attempt to change the
color of the galaxy to classic spiral colors resulted in the star colors
getting well out of whack. Most amateur color images show more normal
coloration though a professional image and one amateur one comes up with
colors much like mine. I do need to revisit this one just to be sure
something didn't screw up the color.

With no redshift data I didn't prepare an annotated image.

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".