Date   
Re: c2017 T2 PanSTARRS

Bernard Miller
 

Gregg,

Nice catch. We are going to have to start calling you Messier Man as our resident comet hunter.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Sunday, November 17, 2019 9:33 AM
To: EurekaObsClub@groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; main@STLAstronomy.groups.io; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] c2017 T2 PanSTARRS

Hi all:

Comet T2 PanSTARRS continues to shine around magnitude 11 in Auriga:

http://www.greggsastronomy.com/IMAGES/C2017-T2-PanSTARRS-LRGB_111619.jpg

The tail appears smaller than in my earlier image, likely due to the low altitude (imaged before moonrise).

LRGB, 40 minutes total exposure

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site http://www.greggsastronomy.com/

Re: Sh2-223 and visitor

Bernard Miller
 

Nice Gregg. Its shape reminded me a little of the Crescent Nebula.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Wednesday, November 20, 2019 6:38 PM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Sh2-223 and visitor

Hi all

Sh2-223 is a large but faint emission nebula in Auriga; when I started imaging it I noticed that comet c2017 T2 PanSTARRS was going to pass in front of it on November 18 and 19.

http://www.greggsastronomy.com/IMAGES/Sh2-223-HaLRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-223.html

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site http://www.greggsastronomy.com/

Re: [ASEMDigitalSIG] Sh2-223 and visitor

Gregg Ruppel
 

Well, mine has selective processing too...I have been using the technique for blending Ha described by Tony Hallas in the link you sent earlier.

Clear skies,

Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/

On 11/20/2019 6:45 PM, Dan Crowson wrote:
Gregg,

This is fantastic. This is the deepest Sh2-223 I've found. I went back and looked at mine and it doesn't have any of the stuff 'inside'. You have more than Dean's and I tend to think his have a lot of selective processing.

Dan

-----Original Message-----
From: ASEMDigitalSIG@groups.io [mailto:ASEMDigitalSIG@groups.io] On Behalf Of Gregg Ruppel
Sent: Wednesday, November 20, 2019 7:38 PM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [ASEMDigitalSIG] Sh2-223 and visitor

Hi all

Sh2-223 is a large but faint emission nebula in Auriga; when I started imaging it I noticed that comet c2017 T2 PanSTARRS was going to pass in front of it on November 18 and 19.

http://www.greggsastronomy.com/IMAGES/Sh2-223-HaLRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-223.html

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site http://www.greggsastronomy.com/







Re: [ASEMDigitalSIG] Sh2-223 and visitor

Dan Crowson
 

Gregg,

This is fantastic. This is the deepest Sh2-223 I've found. I went back and looked at mine and it doesn't have any of the stuff 'inside'. You have more than Dean's and I tend to think his have a lot of selective processing.

Dan

-----Original Message-----
From: ASEMDigitalSIG@groups.io [mailto:ASEMDigitalSIG@groups.io] On Behalf Of Gregg Ruppel
Sent: Wednesday, November 20, 2019 7:38 PM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [ASEMDigitalSIG] Sh2-223 and visitor

Hi all

Sh2-223 is a large but faint emission nebula in Auriga; when I started imaging it I noticed that comet c2017 T2 PanSTARRS was going to pass in front of it on November 18 and 19.

http://www.greggsastronomy.com/IMAGES/Sh2-223-HaLRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-223.html

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site http://www.greggsastronomy.com/

Sh2-223 and visitor

Gregg Ruppel
 

Hi all

Sh2-223 is a large but faint emission nebula in Auriga; when I started imaging it I noticed that comet c2017 T2 PanSTARRS was going to pass in front of it on November 18 and 19.

http://www.greggsastronomy.com/IMAGES/Sh2-223-HaLRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-223.html

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/

c2017 T2 PanSTARRS

Gregg Ruppel
 

Hi all:

Comet T2 PanSTARRS continues to shine around magnitude 11 in Auriga:

http://www.greggsastronomy.com/IMAGES/C2017-T2-PanSTARRS-LRGB_111619.jpg

The tail appears smaller than in my earlier image, likely due to the low altitude (imaged before moonrise).

LRGB, 40 minutes total exposure

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/

Sharpless 298

Dan Crowson
 

Sh2-298 (NGC 2359, IC 468, Gum 4, LBN 1041, Thor’s Helmet) is an emission nebula located approximately 15,000 light-years away in Canis Major. The nebula is created by the center Wolf-Rayet star HD 56925.

 

Ha – 24x1800s – 720 minutes – binned 1x1

OIII – 25x1800s – 750 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

1590 minutes total exposure – 26 hours 30 minutes

 

Imaged over 13 nights from December, 2016 through January, 2018 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

Ha-OIII-OIII-RGB - https://www.flickr.com/photos/dcrowson/49051414501/sizes/l/

 

See my previous LRGB version here - https://www.flickr.com/photos/dcrowson/33233590106/sizes/l

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Re: Sharpless 201

Gregg Ruppel
 

Great shot...I’m adding this one to my target list.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Nov 10, 2019, at 9:12 PM, Dan Crowson <dcrowson@...> wrote:



Sharpless 201 (IC 1871, LBN 675 and others) is an emission nebula located approximately 10,000 light-years away in Cassiopeia. This nebula is often overlooked or imaged along with the more popular Soul Nebula (IC 1848). This one is on the opposite side of my previously posted Sh2-189 (https://www.flickr.com/photos/dcrowson/48201263231).

 

Luminance – 28x600s – 280 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

400 minutes total exposure – 6 hours 40 minutes

 

Imaged in November and December, 2018 and September and November, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49046958761/sizes/l/

 

I originally posted a HaRGB version that can be found here - https://www.flickr.com/photos/dcrowson/48207081791. I’ve been finding that I can get a better image using luminance when under very dark skies.

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Sharpless 201

Dan Crowson
 

Sharpless 201 (IC 1871, LBN 675 and others) is an emission nebula located approximately 10,000 light-years away in Cassiopeia. This nebula is often overlooked or imaged along with the more popular Soul Nebula (IC 1848). This one is on the opposite side of my previously posted Sh2-189 (https://www.flickr.com/photos/dcrowson/48201263231).

 

Luminance – 28x600s – 280 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

400 minutes total exposure – 6 hours 40 minutes

 

Imaged in November and December, 2018 and September and November, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49046958761/sizes/l/

 

I originally posted a HaRGB version that can be found here - https://www.flickr.com/photos/dcrowson/48207081791. I’ve been finding that I can get a better image using luminance when under very dark skies.

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Re: Abell 80

Gregg Ruppel
 

Cool.  Almost looks like it’s hiding behind the field stars.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Nov 9, 2019, at 10:41 AM, Dan Crowson <dcrowson@...> wrote:



Abell 80 (PK 102-05 1 and others) is a planetary nebula located approximately 5,700 light-years away in Lacerta.

 

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

360 minutes total exposure – 6 hours

 

Imaged September 29th and October 5th, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49038839151/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Abell 80

Dan Crowson
 

Abell 80 (PK 102-05 1 and others) is a planetary nebula located approximately 5,700 light-years away in Lacerta.

 

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

360 minutes total exposure – 6 hours

 

Imaged September 29th and October 5th, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49038839151/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Berkeley 12

Dan Crowson
 

Berkeley 12 is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class II 3 p open cluster located approximately 10,300 light-years away in Perseus.

 

Luminance – 24x300s – binned 1x1 – 120 minutes

RGB – 8x180s – 24 minutes each – binned 2x2

 

182 minutes total exposure – 3 hours 2 minutes

 

Imaged October 22nd, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49025949058/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Re: Sh2-209 and NGC 1528

Bernard Miller
 

Nice Gregg. I love the blue open cluster.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Tuesday, November 5, 2019 3:49 PM
To: EurekaObsClub@groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; main@STLAstronomy.groups.io; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Sh2-209 and NGC 1528

 

Hi all:

Sh2-209 is a very faint emission nebula in Perseus; there aren't many images of it.  It is shown in an image from the WISE infrared telescope.  NGC 1528 is a beautiful open cluster about 50 arcminutes to its east:

http://www.greggsastronomy.com/IMAGES/sh2-209_NGC1528-LRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-209_NGC1528.html

-- 
Clear skies,
 
Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/


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Re: IC 239

Bernard Miller
 

Nice work Dan. It sure would help if they could move that star 😊

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Monday, November 4, 2019 4:31 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] IC 239

 

IC 239 (UGC 2080, PGC 9899 and others) is a grand spiral approximately 51 million light-years away in Andromeda.

 

PGC 2802360 is the faint dwarf elliptical to the left (east) of IC 239. It is considered part of the NGC 1023 group.

 

Luminance – 26x600s – 240 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged November 1st and 3rd, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49015218872/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 


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Sh2-209 and NGC 1528

Gregg Ruppel
 

Hi all:

Sh2-209 is a very faint emission nebula in Perseus; there aren't many images of it.  It is shown in an image from the WISE infrared telescope.  NGC 1528 is a beautiful open cluster about 50 arcminutes to its east:

http://www.greggsastronomy.com/IMAGES/sh2-209_NGC1528-LRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-209_NGC1528.html
-- 
Clear skies,

Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/

IC 239

Dan Crowson
 

IC 239 (UGC 2080, PGC 9899 and others) is a grand spiral approximately 51 million light-years away in Andromeda.

 

PGC 2802360 is the faint dwarf elliptical to the left (east) of IC 239. It is considered part of the NGC 1023 group.

 

Luminance – 26x600s – 240 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged November 1st and 3rd, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49015218872/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

NGC 2467 - The Skull and Crossbones Nebula

Bernard Miller
 

Hi,

 

This is an image of NGC 2467, also known as the Skull and Crossbones Nebula. It is a star forming region about 17,000 light years away in the constellation Puppis. This region does not represent a single star cluster, but rather many separate clusters along the same line of site, each with different distance and radial velocity.

 

Comments and suggestions appreciated.

 

http://www.azstarman.net/CDK/NGC2467.htm

 

Thanks,

 

Bernard

 


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Re: Berkeley 94

Bernard Miller
 

I will be there Mark.



On Nov 2, 2019, at 5:12 PM, Mark Hanson <markh@...> wrote:

Dam,

That’s very nice!

I’d anyone going to AIC? I will be working at PlaneWave booth. We should get together .

Mark


On Nov 2, 2019, at 2:09 PM, Dan Crowson <dcrowson@...> wrote:



Berkeley 94 is a Trumpler class  I 1 p open cluster located approximately 12,700 light-years away in Cepheus. An extensive study of Be 94 and Be 96 can be found here - https://academic.oup.com/mnras/article-pdf/435/1/429/13761858/stt1311.pdf.

 

Luminance – 24x300s – binned 1x1 – 120 minutes

RGB – 8x180s – 24 minutes each – binned 2x2

 

182 minutes total exposure – 3 hours 2 minutes

 

Imaged October 31st and November 1st, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49001704243/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

Re: M33

William McLaughlin
 

Not I. I think the last time I went was 04? when I gave a talk - long time ago. I always get a cold if I go to large gatherings and/or travel on the airlines in the winter so try to only do those things in the summer or early fall - so sadly AIC is history for me. 

Re: M33

Mark Hanson
 

Very nice!

How many of you are going to AIC?
I’ll be working at the Planewave booth. We should get together.

Mark

On Nov 2, 2019, at 12:25 PM, Gregg Ruppel <ruppel0709@...> wrote:

Hi all:

M33 is a popular target, and I tend to revisit it every few years:

http://www.greggsastronomy.com/IMAGES/m33_HaLRGB_2019.jpg

HaLRGB, a little over 28 hours total exposure

--
Clear skies,

Gregg
Visit my astronomy & astrophotography site
http://www.greggsastronomy.com/