Date   
Re: SkyAlert Weather Monitor

Bernard Miller
 

Howard,

 

Yes. If the sky temp gets near the grey it will trigger an unsafe cloudy condition. Generally, the higher the sky temp the more cloudy it is. You can adjust the ambient/sky temp differential to determine what a shutdown event is. I think it is set to 20 or 30 degrees difference when the unit is installed.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Howard Anderson
Sent: Monday, June 3, 2019 9:37 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] SkyAlert Weather Monitor

 

Hi all,

I just bought a SkyAlert Weather Monitor.  Have not been
down to the site to install it yet but I see at least one of you
has this device and are displaying its results out on the internet.

QUESTION:  in the following SkyAlert image, how do you tell if it
is likely to be cloudy?  Are you looking for the "Sky Temp" to
rise to someplace within the grayed areas?  How are the Gray
areas determined?

I had cloud conditions all calibrated on my Foster Weather Monitor but its communication
chip was damaged by a nearby lightning strike several months ago.  I replaced its comm chip
but was unsuccessful at restoring it to working order.  The device no longer seems to be
available from Foster...  Thus my purchase of the SkyAlert system...

Thanks!

Howard


Virus-free. www.avast.com

vdB 107

Gregg Ruppel
 

Hi all:

vdB 107 is a bright nebula in Scorpius around the 1st magnitude Antares.  The normal blue of a reflection nebula is overwhelmed in this case by the orange-red color of the Rival of Mars:

http://www.greggsastronomy.com/IMAGES/vdB107-LRGB.jpg

Here is a tone-mapped monochrome image that shows the nebulosity somewhat better:

http://www.greggsastronomy.com/IMAGES/vdB107-mono.jpg

The bright globular M44 is just to the west while the smaller globular NGC 6144 is partially hidden by the nebulosity.

Image data here:

http://www.greggsastronomy.com/vdB107.html


 Clear skies,

Gregg

visit my astrophotography site: www.greggsastronomy.com

Arp 38

Dan Crowson
 

Arp 38 (NGC 6412, UGC 10897 and others) is a nice spiral located approximately 74 million light-years away in Draco. In the ‘Spiral galaxies – companions on arms – low surface brightness companions’ class, it looks like Arp might have made a mistake. There doesn’t appear to be any companions. I have a feeling some of the knots in NGC 6412 were thought to be galaxies.

 

Luminance – 27x600s – 270 minutes – binned 1x1

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

 

390 minutes total exposure – 6 hours 30 minutes

 

Imaged June 1st, 2nd 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/48009263051/sizes/l

 

Dan

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

 

Re: Congrats Madhup

Madhup Rathi
 

Thanks Dan….

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Dan Crowson
Sent: Wednesday, May 29, 2019 9:58 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Congrats Madhup

 

Astronomy Magazine Picture of the Day for May 29th, 2019.

 

http://www.astronomy.com/photos/picture-of-day/2019/05/interaction

 

Dan

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

 

Re: Arp 38

Bernard Miller
 

Beautiful Dan. Another one I have to add to my list.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Wednesday, June 5, 2019 3:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Arp 38

 

Arp 38 (NGC 6412, UGC 10897 and others) is a nice spiral located approximately 74 million light-years away in Draco. In the ‘Spiral galaxies – companions on arms – low surface brightness companions’ class, it looks like Arp might have made a mistake. There doesn’t appear to be any companions. I have a feeling some of the knots in NGC 6412 were thought to be galaxies.

 

Luminance – 27x600s – 270 minutes – binned 1x1

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

 

390 minutes total exposure – 6 hours 30 minutes

 

Imaged June 1st, 2nd 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/48009263051/sizes/l

 

Dan

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

 


Virus-free. www.avast.com

Congrats to Bernard

Mark Hanson
 

Great Job on your APOD today!!!!!

 

https://apod.nasa.gov/apod/

 

Mark

Re: Congrats to Bernard

Dan Crowson
 

Fantastic!

 

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Mark Hanson
Sent: Thursday, June 06, 2019 5:38 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Congrats to Bernard

 

Great Job on your APOD today!!!!!

 

https://apod.nasa.gov/apod/

 

Mark

Re: Congrats to Bernard

Dan Crowson
 

Link that will always work - https://apod.nasa.gov/apod/ap190606.html.

 

Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Mark Hanson
Sent: Thursday, June 06, 2019 5:38 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Congrats to Bernard

 

Great Job on your APOD today!!!!!

 

https://apod.nasa.gov/apod/

 

Mark

Re: Congrats to Bernard

Gregg Ruppel
 

Way to go Bernard - a great APOD image!

Gregg

Visit my astronomy & astrophotography site

On Jun 6, 2019, at 6:10 AM, Dan Crowson <dcrowson@...> wrote:

Link that will always work - https://apod.nasa.gov/apod/ap190606.html.

 

Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Mark Hanson
Sent: Thursday, June 06, 2019 5:38 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Congrats to Bernard

 

Great Job on your APOD today!!!!!

 

https://apod.nasa.gov/apod/

 

Mark

APOD

Bernard Miller
 

Hi,

 

Thanks to everyone for the APOD posts. This makes 2 for me. At the rate I am going I should reach 10 when I am about 120 😊

 

Bernard

 


Virus-free. www.avast.com

Re: Congrats to Bernard

Madhup Rathi
 

Excellent, Bernard.

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Dan Crowson
Sent: Thursday, June 6, 2019 9:10 AM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Congrats to Bernard

 

Link that will always work - https://apod.nasa.gov/apod/ap190606.html.

 

Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Mark Hanson
Sent: Thursday, June 06, 2019 5:38 AM
To: DarkSkyNewMexico@groups.io
Subject: [DarkSkyNewMexico] Congrats to Bernard

 

Great Job on your APOD today!!!!!

 

https://apod.nasa.gov/apod/

 

Mark

Re: Congrats to Bernard

Howard Anderson
 

YES!  Great work Bernard!

Howard

On 6/6/2019 03:37, Mark Hanson wrote:

Great Job on your APOD today!!!!!

 

https://apod.nasa.gov/apod/

 

Mark


Arp 136

Gregg Ruppel
 

Hi all:

Arp 136 sits adjacent to a pair of 6th magnitude blue stars.  Its main component is NGC 5820 and is described by Arp as an "elliptical with nearby fragments".  NGC 5820 shows a "streamer" to its southeast, possibly related to the nearby NGC 5821.   A lot of fainter background galaxies dot the field:

http://www.greggsastronomy.com/IMAGES/ngc5820-LRGB.jpg

Here is an inverted/cropped view:

http://www.greggsastronomy.com/IMAGES/Arp--136_InvCrop.jpg

Image data here:
http://www.greggsastronomy.com/Arp136.html

--


Clear skies,


Gregg
visit my astrophotography site:
www.greggsastronomy.com

Re: Arp 136

Bernard Miller
 

Gregg,

Nice job. That must be a hard one to process with those stars so nearby.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Gregg Ruppel
Sent: Saturday, June 8, 2019 7:08 AM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] Arp 136

Hi all:

Arp 136 sits adjacent to a pair of 6th magnitude blue stars. Its main component is NGC 5820 and is described by Arp as an "elliptical with nearby fragments". NGC 5820 shows a "streamer" to its southeast, possibly related to the nearby NGC 5821. A lot of fainter background galaxies dot the field:

http://www.greggsastronomy.com/IMAGES/ngc5820-LRGB.jpg

Here is an inverted/cropped view:

http://www.greggsastronomy.com/IMAGES/Arp--136_InvCrop.jpg

Image data here:
http://www.greggsastronomy.com/Arp136.html

--


Clear skies,


Gregg
visit my astrophotography site:
www.greggsastronomy.com

NGC 6951

Dan Crowson
 

NGC 6951 (NGC 6952, UGC 11604 and others) is a seyfert 2 galaxy (https://en.wikipedia.org/wiki/Seyfert_galaxy#Type_II_Seyfert_galaxies) located approximately 61 million light-years away in Cepheus. The galaxy and surrounding field is heavily obscured by IFN dust. The thickest clouds are cataloged in the Planck Galactic Cold Clump (PGCC) catalog - https://www.aanda.org/articles/aa/pdf/2016/10/aa25819-15.pdf.

 

Luminance – 32x600s – 320 minutes – binned 1x1

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

 

500 minutes total exposure – 8 hours 20 minutes

 

Imaged June 3rd, 4th and 6th, 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/48026966091/sizes/l


Dan

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

 

Re: NGC 6951

Gregg Ruppel
 

Excellent! Thanks for sharing .

Clear skies,
Gregg




On Jun 8, 2019, at 4:40 PM, Dan Crowson <dcrowson@...> wrote:

NGC 6951 (NGC 6952, UGC 11604 and others) is a seyfert 2 galaxy (https://en.wikipedia.org/wiki/Seyfert_galaxy#Type_II_Seyfert_galaxies) located approximately 61 million light-years away in Cepheus. The galaxy and surrounding field is heavily obscured by IFN dust. The thickest clouds are cataloged in the Planck Galactic Cold Clump (PGCC) catalog - https://www.aanda.org/articles/aa/pdf/2016/10/aa25819-15.pdf.

 

Luminance – 32x600s – 320 minutes – binned 1x1

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

 

500 minutes total exposure – 8 hours 20 minutes

 

Imaged June 3rd, 4th and 6th, 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/48026966091/sizes/l


Dan

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

 

vdB 104 (Sh2-9)

Gregg Ruppel
 

Hi all

vdB 104 is a reflection nebula surrounding the 2.9 magnitude star sigma Scorpii.  Sh2-9  is an emission nebula near the same star, so this is a combination of reflection/emission nebulosity:

http://www.greggsastronomy.com/IMAGES/vdB104_LRGB.jpg

Image data here:
http://www.greggsastronomy.com/vdB104.html

--


Clear skies,


Gregg
visit my astrophotography site:
www.greggsastronomy.com

Re: vdB 104 (Sh2-9)

Mark Hanson
 

Great job, love it.

On Jun 10, 2019, at 4:31 PM, Gregg Ruppel <ruppel0709@...> wrote:

Hi all

vdB 104 is a reflection nebula surrounding the 2.9 magnitude star sigma Scorpii. Sh2-9 is an emission nebula near the same star, so this is a combination of reflection/emission nebulosity:

http://www.greggsastronomy.com/IMAGES/vdB104_LRGB.jpg

Image data here:
http://www.greggsastronomy.com/vdB104.html

--


Clear skies,


Gregg
visit my astrophotography site:
www.greggsastronomy.com




Re: vdB 104 (Sh2-9)

Bernard Miller
 

Gregg,

Beautiful. You sure know how to find nebulae near bright stars.

Bernard

-----Original Message-----
From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Gregg Ruppel
Sent: Monday, June 10, 2019 2:31 PM
To: Eureka Observers Club <EurekaObsClub@...>; St. LouisAstronomy <STLAstronomy@...>; ASEMDigitalSIG <ASEMDigitalSIG@groups.io>; taaaforum@...; DSNM <DarkSkyNewMexico@groups.io>
Subject: [DarkSkyNewMexico] vdB 104 (Sh2-9)

Hi all

vdB 104 is a reflection nebula surrounding the 2.9 magnitude star sigma Scorpii. Sh2-9 is an emission nebula near the same star, so this is a combination of reflection/emission nebulosity:

http://www.greggsastronomy.com/IMAGES/vdB104_LRGB.jpg

Image data here:
http://www.greggsastronomy.com/vdB104.html

--


Clear skies,


Gregg
visit my astrophotography site:
www.greggsastronomy.com

Sh2-68

Gregg Ruppel
 

Hi all:

Sh2-68 is a planetary nebula in Serpens that made its way into the Sharpless catalog (also cataloged as PN G030.6+06.2 and Simeiz 291):


http://www.greggsastronomy.com/IMAGES/sh2-68-HaRGB.jpg

Image data here:
http://www.greggsastronomy.com/Sh2-68.html


Clear skies,


Gregg
visit my astrophotography site:
www.greggsastronomy.com