Date   

Arp 162

Dan Crowson
 

Arp 162 (NGC 3414, UGC 5959 and others), near the bottom center, is a S0pec lenticular galaxy located approximately 81.5 million light-years away in Leo Minor. Arp has this on in his ‘diffuse counter-tails’ class.

 

NGC 3418 (UGC 5963, PGC 32549 and others), above and to the left (east) of Arp 162, is a barred spiral with large, faint arms located approximately 67 million light-years away.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged over five nights in May, 2020 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/51104336635/sizes/l/

 

Dan

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

 


Re: M95

Gregg Ruppel
 

Excelllent!  The Ha really makes this one stand out.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Apr 5, 2021, at 8:37 AM, Bernard Miller <bgmiller011@...> wrote:



Hi,

This is an image of M95. It is a barred spiral galaxy about 33 million light years away in the constellation Leo. It has an inner ring surrounding the central bar which is an active star forming region. You can see this in the subtle magenta hues caused by the addition of Ha data.

Comments and suggestions welcomed.

http://www.azstarman.net/CDK/M95.htm

Thanks,

Bernard

 

 

http://www.azstarman.net

 

 

 




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Re: NGC 2903

Gregg Ruppel
 

Very nice....impressive done unguided.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Apr 5, 2021, at 1:03 PM, MJ Post <bldrpost@...> wrote:


Folks - Here's my recent attempt at imaging a nearly face-on spiral that's in our neighborhood but not considered to be part of our "local group."  Apparently it is a free-floater, not gravitationally bound to anything discernable.
 
This was by far my longest time on any target - 3.3 hours of 300-sec unguided subs on a one-shot-color camera, the ASI 6200MC - using my CDK14 scope at DSNM.  I'm finding out that with an f/7.2 scope, longer total exposure times do seem to pay off.  I think I'll go for 600-sec subs in the future to reduce the shear bulk of processing.
 
I apologize for not saturating colors as much as others do.  To me, this level of colorization seems within the bounds of being "natural."
 
M.J. Post
<N2903_PS1.jpg>


Re: NGC 2903

Dan Crowson
 

MJ,

 

Looks really good to me including the saturation.

 

Dan

 

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of MJ Post
Sent: Monday, April 05, 2021 3:03 PM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] NGC 2903

 

Folks - Here's my recent attempt at imaging a nearly face-on spiral that's in our neighborhood but not considered to be part of our "local group."  Apparently it is a free-floater, not gravitationally bound to anything discernable.

 

This was by far my longest time on any target - 3.3 hours of 300-sec unguided subs on a one-shot-color camera, the ASI 6200MC - using my CDK14 scope at DSNM.  I'm finding out that with an f/7.2 scope, longer total exposure times do seem to pay off.  I think I'll go for 600-sec subs in the future to reduce the shear bulk of processing.

 

I apologize for not saturating colors as much as others do.  To me, this level of colorization seems within the bounds of being "natural."

 

M.J. Post


NGC 2903

MJ Post
 

Folks - Here's my recent attempt at imaging a nearly face-on spiral that's in our neighborhood but not considered to be part of our "local group."  Apparently it is a free-floater, not gravitationally bound to anything discernable.
 
This was by far my longest time on any target - 3.3 hours of 300-sec unguided subs on a one-shot-color camera, the ASI 6200MC - using my CDK14 scope at DSNM.  I'm finding out that with an f/7.2 scope, longer total exposure times do seem to pay off.  I think I'll go for 600-sec subs in the future to reduce the shear bulk of processing.
 
I apologize for not saturating colors as much as others do.  To me, this level of colorization seems within the bounds of being "natural."
 
M.J. Post


Re: M95

Dan Crowson
 

Bernard,

 

Really nice.

 

I noticed you used binned Ha. How is that working out? I tend to use the Ha at 1x1 for my HaRGB images, but it might be something worthwhile for some of my galaxies that I could go back and integrate it into the LRGB.


Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Bernard Miller
Sent: Monday, April 05, 2021 10:37 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] M95

 

Hi,

This is an image of M95. It is a barred spiral galaxy about 33 million light years away in the constellation Leo. It has an inner ring surrounding the central bar which is an active star forming region. You can see this in the subtle magenta hues caused by the addition of Ha data.

Comments and suggestions welcomed.

http://www.azstarman.net/CDK/M95.htm

Thanks,

Bernard

 

 

http://www.azstarman.net

 

 

 

 


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M95

Bernard Miller
 

Hi,

This is an image of M95. It is a barred spiral galaxy about 33 million light years away in the constellation Leo. It has an inner ring surrounding the central bar which is an active star forming region. You can see this in the subtle magenta hues caused by the addition of Ha data.

Comments and suggestions welcomed.

http://www.azstarman.net/CDK/M95.htm

Thanks,

Bernard

 

 

http://www.azstarman.net

 

 

 




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Re: Two Arps

MJ Post
 

Great work once again, Gregg! I particularly enjoy the wispy tidal arms you captured coming off NGC 3981.

MJ

On 04/03/2021 12:46 PM Gregg Ruppel <ruppel0709@gmail.com> wrote:


Hi all:

NGC 3981 (Arp 289, "double galaxy with wind effects") is the disrupted
spiral in the lower right quadrant; there is some dispute as to whether
it is a double galaxy:

http://www.greggsastronomy.com/IMAGES/ngc3981-LRGB.jpg

NGC 4027 (Apr 22, "one-armed spiral with companion") is in the upper
left quadrant; the companion is 4027a just to the south.  The bright
blue star is SAO 157042, magnitude 5.3.

NGC 3981 1.3X crop:
http://www.greggsastronomy.com/IMAGES/ngc3981-LRGBcrop.jpg

NGC 4027  1.3X crop:
http://www.greggsastronomy.com/IMAGES/ncg4027-LRGBcrop.jpg

LRGB,  11.6 hours total exposure from Dark Sky New Mexico.

--
Clear skies,

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




Two Arps

Gregg Ruppel
 

Hi all:

NGC 3981 (Arp 289, "double galaxy with wind effects") is the disrupted spiral in the lower right quadrant; there is some dispute as to whether it is a double galaxy:

http://www.greggsastronomy.com/IMAGES/ngc3981-LRGB.jpg

NGC 4027 (Apr 22, "one-armed spiral with companion") is in the upper left quadrant; the companion is 4027a just to the south.  The bright blue star is SAO 157042, magnitude 5.3.

NGC 3981 1.3X crop:
http://www.greggsastronomy.com/IMAGES/ngc3981-LRGBcrop.jpg

NGC 4027  1.3X crop:
http://www.greggsastronomy.com/IMAGES/ncg4027-LRGBcrop.jpg

LRGB,  11.6 hours total exposure from Dark Sky New Mexico.

--
Clear skies,

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


Re: Comet c2020 R4 ATLAS

Gregg Ruppel
 

Hi Bernard
Same as for DSOs...10” ASA astrograph, f/3.75. For these small comets I typically use a subframe of the middle 50% of the full frame chip (STL 11000M).

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Mar 30, 2021, at 10:59 AM, Bernard Miller <bgmiller011@cox.net> wrote:

Gregg,

Beautiful as always. What setup do you use for your comet pictures?

Bernard


-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Sunday, March 28, 2021 2:14 PM
To: undisclosed-recipients:
Subject: [DarkSkyNewMexico] Comet c2020 R4 ATLAS

Hi all:

C2020 R4 ATLAS is a morning comet low in the east in Aquila, shining at about magnitude 9. It may get a little brighter within the next few weeks as it approaches withing 0.46 au:

http://www.greggsastronomy.com/IMAGES/c2020-R4--ATLAS_032821.jpg

Cropped, inverted, green filter:
http://www.greggsastronomy.com/IMAGES/c2020-R4--ATLAS_032821crop_inv.jpg

LRGB, 56 minutes total exposure from Dark Sky New Mexico.

--
Clear skies,

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







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Re: Comet c2020 R4 ATLAS

Bernard Miller
 

Gregg,

Beautiful as always. What setup do you use for your comet pictures?

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Sunday, March 28, 2021 2:14 PM
To: undisclosed-recipients:
Subject: [DarkSkyNewMexico] Comet c2020 R4 ATLAS

Hi all:

C2020 R4 ATLAS is a morning comet low in the east in Aquila, shining at about magnitude 9. It may get a little brighter within the next few weeks as it approaches withing 0.46 au:

http://www.greggsastronomy.com/IMAGES/c2020-R4--ATLAS_032821.jpg

Cropped, inverted, green filter:
http://www.greggsastronomy.com/IMAGES/c2020-R4--ATLAS_032821crop_inv.jpg

LRGB, 56 minutes total exposure from Dark Sky New Mexico.

--
Clear skies,

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







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Re: Antennae Redux

Howard Anderson
 

Hi Bernard,

Great work!

Congratulations on APOD!

Thanks!

Howard

On 3/27/2021 15:47, Bernard Miller wrote:
Gregg,

I am glad I got my version in before yours or today's APOD might have been yours. Great job.

Bernard


-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Saturday, March 27, 2021 9:11 AM
To: undisclosed-recipients:
Subject: [DarkSkyNewMexico] Antennae Redux

Hi all:
The recent spate of clouds and the waxing moon prompted me to go back and reprocess some data from 5 years ago. NGC 4038 and 4039, also Arp
244 or the "Antennae Galaxies" deserved a second look since some new software and processing techniques have become available since the original data was collected:

http://www.greggsastronomy.com/IMAGES/ngc4038_4039-LRGB_2021.jpg

LRGB, 10.7 hours total exposure.

--
Clear skies,

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







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Comet c2020 R4 ATLAS

Gregg Ruppel
 

Hi all:

C2020 R4 ATLAS is a morning comet low in the east in Aquila, shining at about magnitude 9.  It may get a little brighter within the next few weeks as it approaches withing 0.46 au:

http://www.greggsastronomy.com/IMAGES/c2020-R4--ATLAS_032821.jpg

Cropped, inverted, green filter:
http://www.greggsastronomy.com/IMAGES/c2020-R4--ATLAS_032821crop_inv.jpg

LRGB, 56 minutes total exposure from Dark Sky New Mexico.

--
Clear skies,

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


Re: Sharpless 274

William McLaughlin
 

Not the Orion, we finally decided not to buy that because the reports I have seen show the quality to be unpredictable and too often not great. We plan to go with a 10 inch AGO iDK....
--
******************
My images can be found at:

and


Re: Antennae Redux

Bernard Miller
 

Great minds think alike :-)

On Mar 27, 2021, at 4:20 PM, Gregg Ruppel <ruppel0709@gmail.com> wrote:

Kind of odd that I posted my rehashed image the same day you scored an APOD!

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Mar 27, 2021, at 3:47 PM, Bernard Miller <bgmiller011@cox.net> wrote:

Gregg,

I am glad I got my version in before yours or today's APOD might have been yours. Great job.

Bernard


-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Saturday, March 27, 2021 9:11 AM
To: undisclosed-recipients:
Subject: [DarkSkyNewMexico] Antennae Redux

Hi all:
The recent spate of clouds and the waxing moon prompted me to go back and reprocess some data from 5 years ago. NGC 4038 and 4039, also Arp
244 or the "Antennae Galaxies" deserved a second look since some new software and processing techniques have become available since the original data was collected:

http://www.greggsastronomy.com/IMAGES/ngc4038_4039-LRGB_2021.jpg

LRGB, 10.7 hours total exposure.

--
Clear skies,

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







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Re: Antennae Redux

MJ Post
 

Gregg and Bernard - Beautiful renditions of a spectacular object. Congratulations to both of you!

MJ

On 03/27/2021 5:20 PM Gregg Ruppel <ruppel0709@gmail.com> wrote:


Kind of odd that I posted my rehashed image the same day you scored an APOD!

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Mar 27, 2021, at 3:47 PM, Bernard Miller <bgmiller011@cox.net> wrote:

Gregg,

I am glad I got my version in before yours or today's APOD might have been yours. Great job.

Bernard


-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Saturday, March 27, 2021 9:11 AM
To: undisclosed-recipients:
Subject: [DarkSkyNewMexico] Antennae Redux

Hi all:
The recent spate of clouds and the waxing moon prompted me to go back and reprocess some data from 5 years ago. NGC 4038 and 4039, also Arp
244 or the "Antennae Galaxies" deserved a second look since some new software and processing techniques have become available since the original data was collected:

http://www.greggsastronomy.com/IMAGES/ngc4038_4039-LRGB_2021.jpg

LRGB, 10.7 hours total exposure.

--
Clear skies,

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







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Re: FW: Small Magellanic Cloud

MJ Post
 

Very impressive Dan.  Well deserved for continued outstanding efforts.
 
MJ

On 03/27/2021 4:58 PM Bernard Miller <bgmiller011@...> wrote:
 
 

Dan,

 

Way to go. I have only gotten one of my pictures to be used someplace other than the Reader’s Gallery.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Saturday, March 27, 2021 10:57 AM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] FW: Small Magellanic Cloud

 

This is a first for me – three images in a single issue. This image along with two others can be found in the April, 2021 issue of Astronomy Now magazine (https://astronomynow.com/).  

 

NGC 4564 + 4567 – Page 76 - https://www.flickr.com/photos/dcrowson/49975097066/sizes/l/

NGC 5634 – Page 77 - https://www.flickr.com/photos/dcrowson/35709894936/sizes/l/

SMC – Page 111 - https://www.flickr.com/photos/dcrowson/50898792258/sizes/l/

 

Dan

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

 

From: Dan Crowson [mailto:dcrowson@...]
Sent: Monday, February 01, 2021 5:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: Small Magellanic Cloud

 

The Small Magellanic Cloud (SMC, NGC 292, PGC 3085 and others) is a dwarf irregular galaxy located approximately 195,694 (0.06 Mpc) light-years away in Tucana and Hydrus.

 

NGC 104 (47 Tucanae, Melotte 1, Faust 10 and others), to the right of the SMC, is a Shapley-Sawyer class III (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 15,297 light-years away in Tucana.

 

NGC 362 (Melotte 4, Faust 127 and others), above the SMC, is also a class III globular cluster located approximately 29,354 light-years away in Tucana.

 

Luminance – 13x300s – 65 minutes – binned 1x1

RGB – 6x300s – 30 minutes each – binned 1x1

 

155 minutes total exposure – 2 hours 35 minutes

 

Imaged on December 15th and 18th, 2020 and January 8th, 2021 at the El Sauce Observatory – Telescope.Live (Rio Hurtado, Chile) with a FLI ML16200 using a Nikon lens f/2 200mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/50898792258/sizes/l/

LRGB annotated - https://www.flickr.com/photos/dcrowson/50899620377/sizes/l/

 

Dan

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

 

 




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Re: Antennae Redux

Gregg Ruppel
 

Kind of odd that I posted my rehashed image the same day you scored an APOD!

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Mar 27, 2021, at 3:47 PM, Bernard Miller <bgmiller011@cox.net> wrote:

Gregg,

I am glad I got my version in before yours or today's APOD might have been yours. Great job.

Bernard


-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Saturday, March 27, 2021 9:11 AM
To: undisclosed-recipients:
Subject: [DarkSkyNewMexico] Antennae Redux

Hi all:
The recent spate of clouds and the waxing moon prompted me to go back and reprocess some data from 5 years ago. NGC 4038 and 4039, also Arp
244 or the "Antennae Galaxies" deserved a second look since some new software and processing techniques have become available since the original data was collected:

http://www.greggsastronomy.com/IMAGES/ngc4038_4039-LRGB_2021.jpg

LRGB, 10.7 hours total exposure.

--
Clear skies,

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







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Re: FW: Small Magellanic Cloud

Bernard Miller
 

Dan,

 

Way to go. I have only gotten one of my pictures to be used someplace other than the Reader’s Gallery.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Saturday, March 27, 2021 10:57 AM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] FW: Small Magellanic Cloud

 

This is a first for me – three images in a single issue. This image along with two others can be found in the April, 2021 issue of Astronomy Now magazine (https://astronomynow.com/).  

 

NGC 4564 + 4567 – Page 76 - https://www.flickr.com/photos/dcrowson/49975097066/sizes/l/

NGC 5634 – Page 77 - https://www.flickr.com/photos/dcrowson/35709894936/sizes/l/

SMC – Page 111 - https://www.flickr.com/photos/dcrowson/50898792258/sizes/l/

 

Dan

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

 

From: Dan Crowson [mailto:dcrowson@...]
Sent: Monday, February 01, 2021 5:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: Small Magellanic Cloud

 

The Small Magellanic Cloud (SMC, NGC 292, PGC 3085 and others) is a dwarf irregular galaxy located approximately 195,694 (0.06 Mpc) light-years away in Tucana and Hydrus.

 

NGC 104 (47 Tucanae, Melotte 1, Faust 10 and others), to the right of the SMC, is a Shapley-Sawyer class III (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 15,297 light-years away in Tucana.

 

NGC 362 (Melotte 4, Faust 127 and others), above the SMC, is also a class III globular cluster located approximately 29,354 light-years away in Tucana.

 

Luminance – 13x300s – 65 minutes – binned 1x1

RGB – 6x300s – 30 minutes each – binned 1x1

 

155 minutes total exposure – 2 hours 35 minutes

 

Imaged on December 15th and 18th, 2020 and January 8th, 2021 at the El Sauce Observatory – Telescope.Live (Rio Hurtado, Chile) with a FLI ML16200 using a Nikon lens f/2 200mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/50898792258/sizes/l/

LRGB annotated - https://www.flickr.com/photos/dcrowson/50899620377/sizes/l/

 

Dan

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

 




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Re: Sharpless 274

Bernard Miller
 

Dan,

 

Excellent result. It compares very favorably to yesterday’s APOD.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Friday, March 26, 2021 8:11 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Sharpless 274

 

Sharpless 274 (Abell 21, LBN 1051 and the Medusa nebula) is a planetary nebula located approximately 1050 light-years away in Gemini.

 

Ha – 30x1800s – 900 minutes – binned 1x1

OIII – 24x1800s – 720 minutes – binned 1x1

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

 

1720 minutes total exposure – 29 hours

 

Imaged over 14 nights from February, 2016 through February, 2020 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.

 

HOO-RGB - https://www.flickr.com/photos/dcrowson/51075069997/sizes/l/

 

My previous LRGB image can be found here - https://www.flickr.com/photos/dcrowson/33534546662/sizes/l

 

Dan

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

 




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