Date   
Re: B 3 and 4

Brian Ottum
 

Highly interesting shot!

-----Original Message-----
From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Gregg Ruppel
Sent: Saturday, December 7, 2019 11:43 AM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] B 3 and 4

Hi all:

Barnard 3 and 4 are two dark nebulae on the border between Perseus and Taurus. This is a composite image that includes data from a smaller field around vdB19 and IC 348:

http://www.greggsastronomy.com/IMAGES/B3_4-LRGB.jpg

B3 is the smaller dark nebula while B4 is the larger expanse of dust across the lower part of the field. A little over 21 hours total exposure for the combined images.

Here is the image of vdB19 I posted a few months back:
http://www.greggsastronomy.com/IMAGES/vdB19-LRGB.jpg

--
Clear skies,

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

B 3 and 4

Gregg Ruppel
 

Hi all:

Barnard 3 and 4 are two dark nebulae on the border between Perseus and Taurus.  This is a composite image that includes data from a smaller field around vdB19 and IC 348:

http://www.greggsastronomy.com/IMAGES/B3_4-LRGB.jpg

B3 is the smaller dark nebula while B4 is the larger expanse of dust across the lower part of the field.  A little over 21 hours total exposure for the combined images.

Here is the image of vdB19 I posted a few months back:
http://www.greggsastronomy.com/IMAGES/vdB19-LRGB.jpg

--
Clear skies,

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

Re: NGC 6357 - The Lobster Nebula in narrowband

Madhup Rathi
 

Nice colorful nebula – this is really a lot of data, Bernard.

 

Madhup

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Bernard Miller
Sent: Wednesday, November 27, 2019 11:50 PM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] NGC 6357 - The Lobster Nebula in narrowband

 

Hi,

 

This is an image of NGC 6357, also known as the Lobster Nebula, taken with narrowband filters and processed using the Hubble palette. Although known as the Lobster nebula, the FOV of this image is too small to see the entire nebula. It lies about 8,000 light years away in the constellation Scorpius. This nebula is home to open star cluster Pismis 24, which has some of the most unusually bright and massive stars in the galaxy. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity.

 

Comments and suggestions appreciated.

 

http://www.azstarman.net/CDK/NGC6357_NB.htm

 

Thanks,

 

Bernard

 

Re: Arp 298

Bernard Miller
 

Dan,

 

Nice image with visible tidal streams in the two center galaxies.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Friday, November 29, 2019 4:57 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Arp 298

 

Arp 298 consists of NGC 7469 (UGC 12332, VV 1962 and many others), the odd Seyfert 1 galaxy at the center and IC 5283 (PGC 70350 and others), the distorted spiral with a plume above it. These are located approximately 225 million light-years away in Pegasus.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged October 25th, 26th, 30th and November 16th and 17th, 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/49143999566/sizes/l/


Dan

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

 

Arp 295

Dan Crowson
 

Arp 295 consists of MCG-01-60-021 (PGC 72139, VV 34/a and others) below MCG-01-60-022 (PGC 72155, VV 34b and others). These appear to be located approximately 300 million light-years away in Aquarius.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged October 22nd, 24th, 25th, 26th and 27th, 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/49147252278/sizes/l/

 

Dan

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

 

Re: I am down

Madhup Rathi
 

I am unable to connect as well.

On Nov 30, 2019, at 3:23 AM, Bernard Miller <bgmiller011@...> wrote:



Hi,

 

Is anyone else having trouble connecting?

 

Thanks,

 

Bernard

 

Re: I am down

Dan Crowson
 

Bernard,

 

We’re up. It looks like anything behind that .5 router in the studio is down. That would be the first place for someone to look.


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: Friday, November 29, 2019 8:57 PM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] I am down

 

Hi,

 

Is anyone else having trouble connecting?

 

Thanks,

 

Bernard

 

I am down

Bernard Miller
 

Hi,

 

Is anyone else having trouble connecting?

 

Thanks,

 

Bernard

 

Arp 298

Dan Crowson
 

Arp 298 consists of NGC 7469 (UGC 12332, VV 1962 and many others), the odd Seyfert 1 galaxy at the center and IC 5283 (PGC 70350 and others), the distorted spiral with a plume above it. These are located approximately 225 million light-years away in Pegasus.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged October 25th, 26th, 30th and November 16th and 17th, 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/49143999566/sizes/l/


Dan

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

 

Re: NGC 7769, 7770, 7771

Gregg Ruppel
 

Yes, the three brightest. 7769 is on the right.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Nov 28, 2019, at 4:42 PM, Bernard Miller <bgmiller011@...> wrote:

Gregg,

Nice. Is the third galaxy the one at 3 o'clock from the bottom galaxy?

Bernard


-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Tuesday, November 26, 2019 7:53 PM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] NGC 7769, 7770, 7771

Hi all:

Here is an interesting trio of galaxies within the great square of Pegasus that somehow didn't make it into Arp's catalog: NGC 7769, 7770 and 7771:

http://www.greggsastronomy.com/IMAGES/ngc7769-LRGB.jpg

There are several fainter background galaxies behind the trio.

Cropped, inverted:
http://www.greggsastronomy.com/IMAGES/ngc7769_crop.jpg

Image data here:
http://www.greggsastronomy.com/ngc%207769.html

--
Clear skies,

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






Re: NGC 7769, 7770, 7771

Bernard Miller
 

Gregg,

Nice. Is the third galaxy the one at 3 o'clock from the bottom galaxy?

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Tuesday, November 26, 2019 7:53 PM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] NGC 7769, 7770, 7771

Hi all:

Here is an interesting trio of galaxies within the great square of Pegasus that somehow didn't make it into Arp's catalog: NGC 7769, 7770 and 7771:

http://www.greggsastronomy.com/IMAGES/ngc7769-LRGB.jpg

There are several fainter background galaxies behind the trio.

Cropped, inverted:
http://www.greggsastronomy.com/IMAGES/ngc7769_crop.jpg

Image data here:
http://www.greggsastronomy.com/ngc%207769.html

--
Clear skies,

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

Re: NGC 797 + 801

Bernard Miller
 

Dan,

 

Nice detail in the galaxies.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Thursday, November 28, 2019 3:33 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] NGC 797 + 801

 

NGC 797 (UGC 1541, PGC 7832, VV 428, MCG+06-05-078 and others) is a face-on spiral interacting with MCG+06-05-078b (NGC 797b, VV 428b and others).

 

NGC 801 (UGC 1550, PGC 7847 and others) is an AGN galaxy located above NGC 797.

 

Information on both of these is parse and all over the place. Estimates put these between 160 and 260 million light-years away in Andromeda.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged November 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/49139329117/sizes/l/

 

Dan

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

 

Re: NGC 797 + 801

Gregg Ruppel
 

Very nice.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Nov 28, 2019, at 3:33 PM, Dan Crowson <dcrowson@...> wrote:



NGC 797 (UGC 1541, PGC 7832, VV 428, MCG+06-05-078 and others) is a face-on spiral interacting with MCG+06-05-078b (NGC 797b, VV 428b and others).

 

NGC 801 (UGC 1550, PGC 7847 and others) is an AGN galaxy located above NGC 797.

 

Information on both of these is parse and all over the place. Estimates put these between 160 and 260 million light-years away in Andromeda.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged November 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/49139329117/sizes/l/

 

Dan

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

 

Berkeley 17

Dan Crowson
 

Berkeley 17 is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class III 1 r open cluster located approximately 8,800 light-years away in Auriga. Be 17 could be the oldest open cluster. More information can be found here - https://iopscience.iop.org/article/10.3847/1538-4357/aa89e2/pdf.

 

Luminance – 24x300s – binned 1x1 – 120 minutes

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

 

182 minutes total exposure – 3 hours 2 minutes

 

Imaged October 23rd and November 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/49139220796/sizes/l/

 

Dan

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

 

NGC 797 + 801

Dan Crowson
 

NGC 797 (UGC 1541, PGC 7832, VV 428, MCG+06-05-078 and others) is a face-on spiral interacting with MCG+06-05-078b (NGC 797b, VV 428b and others).

 

NGC 801 (UGC 1550, PGC 7847 and others) is an AGN galaxy located above NGC 797.

 

Information on both of these is parse and all over the place. Estimates put these between 160 and 260 million light-years away in Andromeda.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged November 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/49139329117/sizes/l/

 

Dan

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

 

Re: NGC 6357 - The Lobster Nebula in narrowband

Gregg Ruppel
 

Bernard

Nicely processed...this target appears to be one where there is enough SII to make a difference using the Hubble palette.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Nov 27, 2019, at 9:50 PM, Bernard Miller <bgmiller011@...> wrote:



Hi,

 

This is an image of NGC 6357, also known as the Lobster Nebula, taken with narrowband filters and processed using the Hubble palette. Although known as the Lobster nebula, the FOV of this image is too small to see the entire nebula. It lies about 8,000 light years away in the constellation Scorpius. This nebula is home to open star cluster Pismis 24, which has some of the most unusually bright and massive stars in the galaxy. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity.

 

Comments and suggestions appreciated.

 

http://www.azstarman.net/CDK/NGC6357_NB.htm

 

Thanks,

 

Bernard

 

NGC 6357 - The Lobster Nebula in narrowband

Bernard Miller
 

Hi,

 

This is an image of NGC 6357, also known as the Lobster Nebula, taken with narrowband filters and processed using the Hubble palette. Although known as the Lobster nebula, the FOV of this image is too small to see the entire nebula. It lies about 8,000 light years away in the constellation Scorpius. This nebula is home to open star cluster Pismis 24, which has some of the most unusually bright and massive stars in the galaxy. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity.

 

Comments and suggestions appreciated.

 

http://www.azstarman.net/CDK/NGC6357_NB.htm

 

Thanks,

 

Bernard

 

NGC 7769, 7770, 7771

Gregg Ruppel
 

Hi all:

Here is an interesting trio of galaxies within the great square of Pegasus that somehow didn't make it into Arp's catalog: NGC 7769, 7770 and 7771:

http://www.greggsastronomy.com/IMAGES/ngc7769-LRGB.jpg

There are several fainter background galaxies behind the trio.

Cropped, inverted:
http://www.greggsastronomy.com/IMAGES/ngc7769_crop.jpg

Image data here:
http://www.greggsastronomy.com/ngc%207769.html

--
Clear skies,

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

Re: NGC 55

Madhup Rathi
 

Beautiful…..

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Gregg Ruppel
Sent: Thursday, November 21, 2019 9:34 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] NGC 55

 

Bernard
I like the processing on this one, especially the added Ha.  There are a LOT of background galaxies when viewing the full size image.  Thanks for sharing.

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

On 11/21/2019 7:21 PM, Bernard Miller wrote:

Hi,

This is an image of NGC55. Wikipedia says this is called the Whale Galaxy, but I am pretty sure that is more commonly used to refer to NGC 4631. Perhaps the Southern Whale galaxy. It is a barred spiral galaxy about 7 million light years away in the constellation Sculptor. It is one of the closest galaxies in the local group, which is the group of galaxies that we reside in.

Comments and suggestions are welcomed.

http://www.azstarman.net/CDK/NGC55.htm

Thanks,

Bernard

 

 

Re: Comet I2 Borisov

Madhup Rathi
 

Nice.....

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Gregg Ruppel
Sent: Saturday, November 23, 2019 12:46 PM
To: EurekaObsClub@groups.io; main@STLAstronomy.groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Comet I2 Borisov

Hi all:

The "interstellar" comet I2 Borisov has brightened a bit and now has a defined tail:

http://www.greggsastronomy.com/IMAGES/I2-Borisov_LRGB_112319.jpg

LRGB, 40 minutes total exposure

--
Clear skies,

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