For this labor day weekend when some might be having lobster, I imaged SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night. Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of about 3 hours of imaging. Enjoy Mario

Very cool! On Fri, Aug 30, 2024, 9:19 PM Mario Motta <drmariomotta@gmail.com> wrote: > For this labor day weekend when some might be having lobster, I imaged > SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night. > Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of > about 3 hours of imaging. > Enjoy > Mario > > astro@lists.gaac.us > https://gaac.us > http://www.facebook.com/GAACpage

          Well worth your time spent, very nice! Sent from Yahoo Mail on Android On Fri, Aug 30, 2024 at 9:20 PM, Mario Motta<drmariomotta@gmail.com> wrote: For this labor day weekend when some might be having lobster, I imaged SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night.Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of about 3 hours of imaging.EnjoyMario astro@lists.gaac.us https://gaac.us http://www.facebook.com/GAACpage

On Friday, August 30, 2024 at 09:20:24 PM EDT, Mario Motta <drmariomotta@gmail.com> wrote:   

Really sharp and colorful, Mario,Phil On Friday, August 30, 2024 at 09:20:24 PM EDT, Mario Motta <drmariomotta@gmail.com> wrote: For this labor day weekend when some might be having lobster, I imaged SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night.Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of about 3 hours of imaging.EnjoyMario astro@lists.gaac.us https://gaac.us http://www.facebook.com/GAACpage

Some intriguing bluish [OIII] where I would not expect it. Curious ... Bill <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Fri, Aug 30, 2024 at 9:20 PM Mario Motta <drmariomotta@gmail.com> wrote: > For this labor day weekend when some might be having lobster, I imaged > SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night. > Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of > about 3 hours of imaging. > Enjoy > Mario > > astro@lists.gaac.us > https://gaac.us > http://www.facebook.com/GAACpage -- William H. Waller, Ph.D. Astronomer, Educator, Writer, Editor IAU/OAE National Astronomy Education Coordinator 243 Granite Street Rockport, MA 01966 (978) 546-2096 U.S. Astronomy Education Clearinghouse <https://williamhwaller.wixsite.com/my-site> (1) Earth & Space Reports - YouTube <https://www.youtube.com/channel/UCKrjxN5fU9jGuOfooHc-dMg> <http://galacticinquirer.net> <http://sites.google.com/site/sciencegazette> <http://cosmos.phy.tufts.edu/cosmicfrontier> <https://www.wallerarts.net> <https://a.co/d/9p6e4KU> <https://www.cambridgescholars.com/product/978-1-0364-0353-9> <https://a.co/d/0Jmtb3i>

Something was either hotly irradiating or shock-heating that lower left region. I don't see any wicked-hot star(s), so I'm guessing there was some shock heating, perhaps from a supernova explosion. Bill <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sat, Aug 31, 2024 at 11:42 AM Mario Motta <drmariomotta@gmail.com> wrote: > Bill, the lower part of the claw had O3, upper minimal, ? Supernova > remnant in that area? > Mario > > On Aug 31, 2024, at 10:48 AM, William Waller <williamhwaller@gmail.com> > wrote: > >  > Some intriguing bluish [OIII] where I would not expect it. > Curious ... > > Bill > > > <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > Virus-free.www.avg.com > <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > <#m_6596989771858524674_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Fri, Aug 30, 2024 at 9:20 PM Mario Motta <drmariomotta@gmail.com> > wrote: > >> For this labor day weekend when some might be having lobster, I imaged >> SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night. >> Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of >> about 3 hours of imaging. >> Enjoy >> Mario >> >> astro@lists.gaac.us >> https://gaac.us >> http://www.facebook.com/GAACpage > > > > -- > William H. Waller, Ph.D. > Astronomer, Educator, Writer, Editor > IAU/OAE National Astronomy Education Coordinator > 243 Granite Street > Rockport, MA 01966 > (978) 546-2096 > > U.S. Astronomy Education Clearinghouse > <https://williamhwaller.wixsite.com/my-site> > (1) Earth & Space Reports - YouTube > <https://www.youtube.com/channel/UCKrjxN5fU9jGuOfooHc-dMg> > <http://galacticinquirer.net> > <http://sites.google.com/site/sciencegazette> > <http://cosmos.phy.tufts.edu/cosmicfrontier> > <https://www.wallerarts.net> > > <https://a.co/d/9p6e4KU> > <https://www.cambridgescholars.com/product/978-1-0364-0353-9> > <https://a.co/d/0Jmtb3i> > > > -- William H. Waller, Ph.D. Astronomer, Educator, Writer, Editor IAU/OAE National Astronomy Education Coordinator 243 Granite Street Rockport, MA 01966 (978) 546-2096 U.S. Astronomy Education Clearinghouse <https://williamhwaller.wixsite.com/my-site> (1) Earth & Space Reports - YouTube <https://www.youtube.com/channel/UCKrjxN5fU9jGuOfooHc-dMg> <http://galacticinquirer.net> <http://sites.google.com/site/sciencegazette> <http://cosmos.phy.tufts.edu/cosmicfrontier> <https://www.wallerarts.net> <https://a.co/d/9p6e4KU> <https://www.cambridgescholars.com/product/978-1-0364-0353-9> <https://a.co/d/0Jmtb3i>

Hi Mario Beautiful image with amazing detail Barry > On 08/30/2024 9:19 PM EDT Mario Motta <drmariomotta@gmail.com> wrote: > > > For this labor day weekend when some might be having lobster, I imaged SH2-157, known as the "lobster claw Nebula" in Cassiopeia last night. > Taken with Ha, S2, and O3 filters, processed in Pixinsight, a total of about 3 hours of imaging. > Enjoy > Mario > astro@lists.gaac.us > https://gaac.us > http://www.facebook.com/GAACpage >