Date   
vdB 157

Gregg Ruppel
 

Hi all:

vdB 157 is a faint reflection nebula around an 8th magnitude star (SAO 10593) in Cassiopeia:

http://www.greggsastronomy.com/IMAGES/vdB157-LRGB.jpg

Image data here:
http://www.greggsastronomy.com/vdB157.html

--
Clear skies,

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

Interstellar visitor

Gregg Ruppel
 

Hi all:
I was able to find Comet I2 Borisov low in the eastern sky this morning:

http://www.greggsastronomy.com/IMAGES/I2-Borisov_100919.jpg

1.5X crop:
http://www.greggsastronomy.com/IMAGES/I2-Borisov_100919_crop.jpg

20 x 120 sec

--
Clear skies,

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

Re: vdB 151

Bernard Miller
 

Wow Gregg. That looks like a real bear to process.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel
Sent: Monday, September 30, 2019 7:53 PM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] vdB 151

Hi all:
Continuing my trek through the van den Bergh catalog of reflection nebulae, here is vdB 151. This is another faint nebula around a bright star, in this case BNU 8, a 4.5 magnitude double in the constellation Lacerta. The nebula has some fine tendrils just north of the star.
http://www.greggsastronomy.com/IMAGES/vdB151-LRGB.jpg

BNU 8 is a K3III spectral class star about 563 Ly distant, with a luminosity of approximately 383 x the sun.

Image data here:
http://www.greggsastronomy.com/vdB151.html

--
Clear skies,

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





--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

Re: Arp 56

Bernard Miller
 

Dan,

 

Nice job. It took me a while to find the galaxy 😊

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Wednesday, October 2, 2019 3:31 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Arp 56

 

Arp 56 consists of UGC 1432 (PGC 7359, VV 12 and others) the larger spiral interacting with PGC 212878. In Arp’s, “Spiral galaxies with companions on arms – high surface brightness companions” class, these are located approximately 350 million light-years away in Aries.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged September 27th 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/48832751121/sizes/l/


Dan

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

 


Virus-free. www.avast.com

Re: M23

Bernard Miller
 

Wow Dan. I really like this one. I have never seen an open cluster with so many stars in the background. Usually the background is black.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Thursday, October 3, 2019 3:31 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] M23

 

M23 (NGC 6494 and others) is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class I 2 r open cluster located approximately 2150 light-years away in Sagittarius.

 

I also caught asteroid 74 Galatea while capturing the luminance. The trail can be found under a star on the left side of the image just below center.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged September 26th and 27th, 2019 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/48838474107/sizes/l/

 

Dan

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

 


Virus-free. www.avast.com

Re: Arp 169

Bernard Miller
 

Orion’s Belt after a diet 😊

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Thursday, October 3, 2019 6:00 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Arp 169

 

Arp 169 consists of (north to south) NGC 7236 (UGC 11598, VV 1934a and many others), NGC 7237 and NGC 7237C (2MASX J22144877+1350006 and others). Part of Arp’s Galaxies (not classifiable as S or E) with diffuse counter tails class, these appear to be located approximately 340 million light-years away in Pegasus.

 

The spiral with a bright core below Arp 169 is PGC 68368.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged September 27th, 28th 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/48839687136/sizes/l/

 

Dan

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

 


Virus-free. www.avast.com

Re: Static Internet Down

Al Acker
 

a ckt breaker was tripped... all should be back now.

Al


On Mon, Oct 7, 2019 at 9:06 PM Brian Ottum <ottum@...> wrote:
My webcam went down at 8:11pm MDT tonight.


Brian Ottum
734-260-0597 mobile


-----Original Message-----

From: dcrowson@...
To: nmhokie1@...
Cc: DarkSkyNewMexico@groups.io
Sent: 2019-10-07 10:51:39 PM
Subject: [DarkSkyNewMexico] Static Internet Down

It looks like the static Internet side went down around 8:18 PM tonight. I tried to reach out to a couple of people on site but haven’t heard anything. Anyone else reach out and/or have any status?

Dan

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

 



Re: Static Internet Down - Up Now

Dan Crowson
 

9:28 PM – Internet just came back up.


Dan

 

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Dan Crowson
Sent: Monday, October 07, 2019 9:52 PM
To: nmhokie1@...
Cc: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Static Internet Down

 

It looks like the static Internet side went down around 8:18 PM tonight. I tried to reach out to a couple of people on site but haven’t heard anything. Anyone else reach out and/or have any status?

Dan

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

 

Re: Static Internet Down

Brian Ottum
 

My webcam went down at 8:11pm MDT tonight.


Brian Ottum
734-260-0597 mobile


-----Original Message-----

From: dcrowson@...
To: nmhokie1@...
Cc: DarkSkyNewMexico@groups.io
Sent: 2019-10-07 10:51:39 PM
Subject: [DarkSkyNewMexico] Static Internet Down

It looks like the static Internet side went down around 8:18 PM tonight. I tried to reach out to a couple of people on site but haven’t heard anything. Anyone else reach out and/or have any status?

Dan

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

 



Static Internet Down

Dan Crowson
 

It looks like the static Internet side went down around 8:18 PM tonight. I tried to reach out to a couple of people on site but haven’t heard anything. Anyone else reach out and/or have any status?

Dan

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

 

Re: M23

Gregg Ruppel
 

Beautiful!  Thanks for sharing.

Clear skies,
Gregg




On Oct 3, 2019, at 3:30 PM, Dan Crowson <dcrowson@...> wrote:

M23 (NGC 6494 and others) is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class I 2 r open cluster located approximately 2150 light-years away in Sagittarius.

 

I also caught asteroid 74 Galatea while capturing the luminance. The trail can be found under a star on the left side of the image just below center.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged September 26th and 27th, 2019 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/48838474107/sizes/l/

 

Dan

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

 

Arp 169

Dan Crowson
 

Arp 169 consists of (north to south) NGC 7236 (UGC 11598, VV 1934a and many others), NGC 7237 and NGC 7237C (2MASX J22144877+1350006 and others). Part of Arp’s Galaxies (not classifiable as S or E) with diffuse counter tails class, these appear to be located approximately 340 million light-years away in Pegasus.

 

The spiral with a bright core below Arp 169 is PGC 68368.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged September 27th, 28th 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/48839687136/sizes/l/

 

Dan

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

 

M23

Dan Crowson
 

M23 (NGC 6494 and others) is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class I 2 r open cluster located approximately 2150 light-years away in Sagittarius.

 

I also caught asteroid 74 Galatea while capturing the luminance. The trail can be found under a star on the left side of the image just below center.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged September 26th and 27th, 2019 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/48838474107/sizes/l/

 

Dan

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

 

NGC 7492

Dan Crowson
 

NGC 7492 is a Shapley-Sawyer class XII (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 84,000 light-years away in Aquarius.

 

Luminance – 12x600s – 120 minutes – binned 1x1

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

 

240 minutes total exposure – 4 hours

 

Imaged September 26th, 2019 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/48832517633/sizes/l/

 

Dan

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

 

Arp 56

Dan Crowson
 

Arp 56 consists of UGC 1432 (PGC 7359, VV 12 and others) the larger spiral interacting with PGC 212878. In Arp’s, “Spiral galaxies with companions on arms – high surface brightness companions” class, these are located approximately 350 million light-years away in Aries.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged September 27th 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/48832751121/sizes/l/


Dan

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

 

vdB 151

Gregg Ruppel
 

Hi all:
Continuing my trek through the van den Bergh catalog of reflection nebulae, here is vdB 151.  This is another faint nebula around a bright star, in this case BNU 8, a 4.5 magnitude double in the constellation Lacerta.  The nebula has some fine tendrils just north of the star.
http://www.greggsastronomy.com/IMAGES/vdB151-LRGB.jpg

BNU 8 is a K3III spectral class star about 563 Ly distant, with a luminosity of approximately 383 x the sun.

Image data here:
http://www.greggsastronomy.com/vdB151.html

--
Clear skies,

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

Re: Two comets

Brian Ottum
 

Great to see comets again after a drought!

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Gregg Ruppel
Sent: Saturday, September 28, 2019 7:22 PM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Two comets

Hi all:
Two comets are currently visible (in moderate sized scopes) in the evening sky - they both are sporting tails:

c2018 W2 Africano
http://www.greggsastronomy.com/IMAGES/c2018-W2-Africano-LRGB_092719.jpg

c2018 N2 ASASSN
http://www.greggsastronomy.com/IMAGES/c2018-N2-ASASSN-LRGB_092719.jpg

40 minutes total exposure for each.

--
Clear skies,

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

Re: Two comets

Dan Crowson
 

ASASSN - around 35 seconds 1x1
Africano - around 5 seconds 1x1

(these are the rates for tonight - 2019-09-28)
----
Dan Crowson dcrowson@...
Dardenne Prairie MO http://www.crowson.com

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Madhup Rathi
Sent: Saturday, September 28, 2019 8:07 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Two comets

My arcsec/pixel ratio is 0.68" per pixel. (QSI 683 wsg is 5.4 micron and AG Optical 10" is 1650 mm.)

Thanks for your help.

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Dan Crowson
Sent: Saturday, September 28, 2019 8:36 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Two comets

Madhup,

Exposure length on these is dependent on your equipment (arcsec/pixel ratio). If you wanted to give me yours, I can give you the max exposure length you can do before seeing trailing. This assumes 1 arcsec seeing so you can go longer if you want but results vary.

The formula I use (just have it in excel)is:

([arsec/pixel ratio]/([higher of the movement in RA or Dec - arsecs/sec out of TheSkyX] * 60)) * 60

As Gregg mentioned, Africano is close so moving much quicker than ASASSN.

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


-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Madhup Rathi
Sent: Saturday, September 28, 2019 7:27 PM
To: DarkSkyNewMexico@groups.io; 'Eureka Observers Club' <EurekaObsClub@...>; 'St. LouisAstronomy' <STLAstronomy@...>; 'ASEMDigitalSIG' <ASEMDigitalSIG@groups.io>; taaaforum@...
Subject: Re: [DarkSkyNewMexico] Two comets

Very nice, Gregg. What are the lengths of individual subs.

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Gregg Ruppel
Sent: Saturday, September 28, 2019 7:22 PM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Two comets

Hi all:
Two comets are currently visible (in moderate sized scopes) in the evening sky - they both are sporting tails:

c2018 W2 Africano
http://www.greggsastronomy.com/IMAGES/c2018-W2-Africano-LRGB_092719.jpg

c2018 N2 ASASSN
http://www.greggsastronomy.com/IMAGES/c2018-N2-ASASSN-LRGB_092719.jpg

40 minutes total exposure for each.

--
Clear skies,

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

Re: Two comets

Madhup Rathi
 

My arcsec/pixel ratio is 0.68" per pixel. (QSI 683 wsg is 5.4 micron and AG Optical 10" is 1650 mm.)

Thanks for your help.

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Dan Crowson
Sent: Saturday, September 28, 2019 8:36 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Two comets

Madhup,

Exposure length on these is dependent on your equipment (arcsec/pixel ratio). If you wanted to give me yours, I can give you the max exposure length you can do before seeing trailing. This assumes 1 arcsec seeing so you can go longer if you want but results vary.

The formula I use (just have it in excel)is:

([arsec/pixel ratio]/([higher of the movement in RA or Dec - arsecs/sec out of TheSkyX] * 60)) * 60

As Gregg mentioned, Africano is close so moving much quicker than ASASSN.

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


-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Madhup Rathi
Sent: Saturday, September 28, 2019 7:27 PM
To: DarkSkyNewMexico@groups.io; 'Eureka Observers Club' <EurekaObsClub@...>; 'St. LouisAstronomy' <STLAstronomy@...>; 'ASEMDigitalSIG' <ASEMDigitalSIG@groups.io>; taaaforum@...
Subject: Re: [DarkSkyNewMexico] Two comets

Very nice, Gregg. What are the lengths of individual subs.

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Gregg Ruppel
Sent: Saturday, September 28, 2019 7:22 PM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Two comets

Hi all:
Two comets are currently visible (in moderate sized scopes) in the evening sky - they both are sporting tails:

c2018 W2 Africano
http://www.greggsastronomy.com/IMAGES/c2018-W2-Africano-LRGB_092719.jpg

c2018 N2 ASASSN
http://www.greggsastronomy.com/IMAGES/c2018-N2-ASASSN-LRGB_092719.jpg

40 minutes total exposure for each.

--
Clear skies,

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

Re: Two comets

Dan Crowson
 

Madhup,

Exposure length on these is dependent on your equipment (arcsec/pixel ratio). If you wanted to give me yours, I can give you the max exposure length you can do before seeing trailing. This assumes 1 arcsec seeing so you can go longer if you want but results vary.

The formula I use (just have it in excel)is:

([arsec/pixel ratio]/([higher of the movement in RA or Dec - arsecs/sec out of TheSkyX] * 60)) * 60

As Gregg mentioned, Africano is close so moving much quicker than ASASSN.

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

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Madhup Rathi
Sent: Saturday, September 28, 2019 7:27 PM
To: DarkSkyNewMexico@groups.io; 'Eureka Observers Club' <EurekaObsClub@...>; 'St. LouisAstronomy' <STLAstronomy@...>; 'ASEMDigitalSIG' <ASEMDigitalSIG@groups.io>; taaaforum@...
Subject: Re: [DarkSkyNewMexico] Two comets

Very nice, Gregg. What are the lengths of individual subs.

-----Original Message-----
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Gregg Ruppel
Sent: Saturday, September 28, 2019 7:22 PM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Two comets

Hi all:
Two comets are currently visible (in moderate sized scopes) in the evening sky - they both are sporting tails:

c2018 W2 Africano
http://www.greggsastronomy.com/IMAGES/c2018-W2-Africano-LRGB_092719.jpg

c2018 N2 ASASSN
http://www.greggsastronomy.com/IMAGES/c2018-N2-ASASSN-LRGB_092719.jpg

40 minutes total exposure for each.

--
Clear skies,

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