Date   

Re: Astronomy Mag - Feb 2020 - Bernard's NGC5128

Howard Anderson
 

Hi,

Last night was a reasonably good imaging night.  I re-shot
the Medusa Nebula.  Results much better than my 2013 shot...

New image:  https://www.astroshow.com/Nebulae/SH2-274.html

First shot I've taken since 28 October when weather and
electricity went weird...  :-)

Thanks,

Howard


Astronomy Mag - Feb 2020 - Bernard's NGC5128

Howard Anderson
 

Hi Bernard,

Congratulations on your NGC5128 image in Feb 2020 issue
of Astronomy magazine, page 70.  Great detail in that shot.
Wish they would have printed a larger image but it is really nice!
They printed it big enough to tell that the original has superb
detail as usual for shots you've taken...

Looks like clouds have briefly departed and humidity is reasonable
so tonight I set up the first shot I've tried to do in months... Now,
it would be nicer if the moon wasn't a factor tonight but other conditions
are way better than they have been for months....  :-)

Thanks,

Howard


vdB 42

Gregg Ruppel
 

Hi all and Happy New Year:

My first image of 2020 is a small reflection nebula, vdB42, which lives just west of its big brother M42:

http://www.greggsastronomy.com/IMAGES/vdb42-LRGB.jpg

Cropped:
http://www.greggsastronomy.com/IMAGES/vdB42-LRGBcrop.jpg

LRGB, 13.7 hours total exposure from Animas, NM

--
Clear skies,

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


Arp 287

Dan Crowson
 

Arp 287 consists of NGC 2735 (UGC 4744, PGC 25399, VV 40a and others) the spiral at the center interacting with NGC 2735A (MCG+04-22-003, PGC 25402, VV 40b and others) just to the left (east) of center. Part of Arp’s Double Galaxies – Wind Effects, these are located approximately 178 million (http://simbad.u-strasbg.fr/simbad/sim-ref?bibcode=2016AJ....152...50T) light-years away in Cancer.

 

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 12x300s – 60 minutes each – binned 2x2

 

420 minutes total exposure – 7 hours

 

Imaged March 5th, 2018, December 31st, 2019 and January 4th, 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/49334853798/sizes/l/

 

Dan

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

 


Re: Betelgeuse is "fainting"

Brian Ottum
 

I totally agree, my images are for demonstration purposes only and not a scientific collection of data.  And thanks for sending that AAVSO link – the light curve is DRAMATIC!

Brian

 

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Wednesday, January 1, 2020 9:07 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Betelgeuse is "fainting"

 

Brian,

 

I posted the below elsewhere. Images like yours are rough at best because humidity or seeing could yield the visible differences shown…

 

Go to https://www.aavso.org/ and enter alf Ori into the search box on the right and hit plot light curve. It might sound bad for lack of a better term but I would then uncheck the visual observations box on the chart. It looks like it has dimmed almost a magnitude since the start of November.

 

Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Brian Ottum
Sent: Wednesday, January 01, 2020 6:51 PM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Betelgeuse is "fainting"

 

https://www.instagram.com/p/B6zC1-IH4Kq/

 

Here’s a side-by-side comparison: 2016 to last night.  The old shot was shorter exposure so I equalized exposure in Photoshop.  You can see that the field stars are identical in appearance.

 

A supernova would be the biggest event of our lifetimes.  Stay tuned.

Brian

 


Re: Betelgeuse is "fainting"

Dan Crowson
 

Brian,

 

I posted the below elsewhere. Images like yours are rough at best because humidity or seeing could yield the visible differences shown…

 

Go to https://www.aavso.org/ and enter alf Ori into the search box on the right and hit plot light curve. It might sound bad for lack of a better term but I would then uncheck the visual observations box on the chart. It looks like it has dimmed almost a magnitude since the start of November.

 

Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Brian Ottum
Sent: Wednesday, January 01, 2020 6:51 PM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Betelgeuse is "fainting"

 

https://www.instagram.com/p/B6zC1-IH4Kq/

 

Here’s a side-by-side comparison: 2016 to last night.  The old shot was shorter exposure so I equalized exposure in Photoshop.  You can see that the field stars are identical in appearance.

 

A supernova would be the biggest event of our lifetimes.  Stay tuned.

Brian

 


Betelgeuse is "fainting"

Brian Ottum
 

https://www.instagram.com/p/B6zC1-IH4Kq/

 

Here’s a side-by-side comparison: 2016 to last night.  The old shot was shorter exposure so I equalized exposure in Photoshop.  You can see that the field stars are identical in appearance.

 

A supernova would be the biggest event of our lifetimes.  Stay tuned.

Brian

 


Berkeley 66

Dan Crowson
 

Berkeley 66 is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class III 1 r open cluster located approximately 18,200 light-years away in Cassiopeia.

 

Luminance – 24x300s – binned 1x1 – 120 minutes

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

 

182 minutes total exposure – 3 hours 2 minutes

 

Imaged December 29th and 31st, 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/49311911501/sizes/l/

 

Dan

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

 


Re: NGC 2366

Bernard Miller
 

Dan,

 

Beautiful image. It reminds me a little of Coddington’s Nebula.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Monday, December 30, 2019 2:09 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] NGC 2366

 

NGC 2366 (UGC 3851, PGC 21102 and others) is an Im (irregular without spiral structure) galaxy located approximately 11 million light-years away in Camelopardalis.

 

NGC 2363 (UGC 3847, PGC 93088 and others) is another irregular galaxy just to the right (west) of the bright HII region of NGC 2366.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged December 2nd, 20th and 29th, 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/49301196677/sizes/l/

 

Dan

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

 


Re: LBN 917

Bernard Miller
 

Dan,

 

Very eerie. It looks like a galactic ghost. Nice job.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Tuesday, December 31, 2019 4:45 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] LBN 917

 

LBN 917 is an HII (according to Simbad - http://simbad.u-strasbg.fr/simbad/sim-id?Ident=LBN+203.50-30.15&NbIdent=1) about four degrees away from the popular IC 2118 (witch head nebula) in Eridanus. Several denser areas can also be found in the Planck Galactic Cold Clump (PGCC) catalog. I have a feeling that the combination of the IFN and HII could have led to the somewhat odd colors.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged on September 26th and 27th, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49307396417/sizes/l/

 

Dan

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

 


Grus Triplet

Bernard Miller
 

Hi,

This is an image of Grus Triplet. This group of galaxies is about 60 million light years away in the constellation Grus and is comprised of NGC 7582, NGC 7590, and NGC 7599. These three galaxies along with NGC 7552 make up the Grus Quartet, which is part of the IC 1459 Group. This image contains data taken from a CDK17 and RCOS 12.5 and represents over 57 hours of total exposure. You can mouse over the image to see an annotated version that shows just how many galaxies are in this image. I also posted a cropped version that shows more details in the triplet.

Comments and suggestions welcomed.

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

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

Thanks,

Bernard

 


Re: LBN 917

Gregg Ruppel
 

That’s eerie. Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Dec 31, 2019, at 3:44 PM, Dan Crowson <dcrowson@...> wrote:



LBN 917 is an HII (according to Simbad - http://simbad.u-strasbg.fr/simbad/sim-id?Ident=LBN+203.50-30.15&NbIdent=1) about four degrees away from the popular IC 2118 (witch head nebula) in Eridanus. Several denser areas can also be found in the Planck Galactic Cold Clump (PGCC) catalog. I have a feeling that the combination of the IFN and HII could have led to the somewhat odd colors.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged on September 26th and 27th, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49307396417/sizes/l/

 

Dan

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

 


LBN 917

Dan Crowson
 

LBN 917 is an HII (according to Simbad - http://simbad.u-strasbg.fr/simbad/sim-id?Ident=LBN+203.50-30.15&NbIdent=1) about four degrees away from the popular IC 2118 (witch head nebula) in Eridanus. Several denser areas can also be found in the Planck Galactic Cold Clump (PGCC) catalog. I have a feeling that the combination of the IFN and HII could have led to the somewhat odd colors.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged on September 26th and 27th, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49307396417/sizes/l/

 

Dan

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

 


Re: NGC 2366

Gregg Ruppel
 

Very unusual.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Dec 30, 2019, at 1:08 PM, Dan Crowson <dcrowson@...> wrote:



NGC 2366 (UGC 3851, PGC 21102 and others) is an Im (irregular without spiral structure) galaxy located approximately 11 million light-years away in Camelopardalis.

 

NGC 2363 (UGC 3847, PGC 93088 and others) is another irregular galaxy just to the right (west) of the bright HII region of NGC 2366.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged December 2nd, 20th and 29th, 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/49301196677/sizes/l/

 

Dan

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

 


NGC 2366

Dan Crowson
 

NGC 2366 (UGC 3851, PGC 21102 and others) is an Im (irregular without spiral structure) galaxy located approximately 11 million light-years away in Camelopardalis.

 

NGC 2363 (UGC 3847, PGC 93088 and others) is another irregular galaxy just to the right (west) of the bright HII region of NGC 2366.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged December 2nd, 20th and 29th, 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/49301196677/sizes/l/

 

Dan

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

 


Re: MBM 56

Brian Ottum
 

I’ve never tried to image IFN, but this makes me want to try.

Brian

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Sunday, December 29, 2019 12:07 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] MBM 56

 

MBM 56 is a cloud of IFN illuminated by our galaxy located approximately 744 light-years away in Pegasus. Several denser areas can also be found in the Planck Galactic Cold Clump (PGCC) catalog.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged on September 27th, 2019 Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49293706736/sizes/l/

 

Dan

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

 


Anyone at DSNM

Bernard Miller
 

Hi,

 

I know this is a long shot, but is anyone at DSNM? If so, can you call me at 602.524.9173?

 

Thanks,

 

Bernard

 


Re: B 3 and 4

Bernard Miller
 

Gregg,

Both of these are beautiful and well processed.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Saturday, December 7, 2019 9:43 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/


Re: Two cluster in Lacerta

Bernard Miller
 

Gregg,

Beautiful star colors.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Wednesday, December 11, 2019 12:00 PM
To: EurekaObsClub@groups.io; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; main@STLAstronomy.groups.io; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Two cluster in Lacerta

Hi all:

IC 1442 and NGC 7245 are lovely open clusters in Lacerta:

http://www.greggsastronomy.com/IMAGES/ic1442_ngc7245-LRGB.jpg

IC 1442 is the cluster at the bottom of the FOV, NGC 7245 near the top; King 9 is the small golden cluster near NGC 7245.
LRGB, about 2 hours total exposure.

--
Clear skies,

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


Re: vdB 31 and Three Barnards Revisited

Bernard Miller
 

Beautiful Dan. I love the contrast for the dark and reflection nebulae.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Wednesday, December 11, 2019 5:31 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] vdB 31 and Three Barnards Revisited

 

van den Bergh 31 (V* AB Aur, HD 31293 and many others) is the star and faint blue reflection nebula.

 

Barnard 27 is just to the right (west) of vdB 31.

Barnard 26 is further right (west) of vdB 31 nd B27.

Barnard 28 is the dark spot right above vdB 31.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged November 30th and December 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/49205364742/sizes/l/

 

See my original visit with a refractor in 2015 here - https://www.flickr.com/photos/dcrowson/23973317631.

 

Dan

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