Date   
Re: Power question

Howard Anderson
 

Thanks guys,

I think our 206.128.69.5 router in the apartments might not
be experiencing this problem.  It might be on a different circuit?

I just recalled that I sometimes have this problem when opening/closing
my roof but not always and in fact, somewhat rarely.  But enough to
be annoying...  :-)

So I think it is my personal router in my building that is going down.
This perhaps indicates some sort of power delivery problem to my building.
It is a pretty long run of wire from the water tower to my building...  Wire
resistance could be a problem...

(It is better than when my building power went down whenever it rained.
Gene finally discovered a place where the ground was smoking.  It was
a splice in the wiring to my building.  The splices were taped but close
together allowing shorting across the splice when the rain allowed increased
conductivity between the splices...  I respliced and put in about 4 inches
between the two splices and lots of tape...  Has been OK since...
Not optimal of course but OK...)  :-)

---------------------*-------------------
---------------------*-------------------
versus
-------------*---------------------------
-------------------------------*---------
Where "*" is the splice...

I am going to check this weekend to see that my router is plugged
into the UPS and, if not, I will plug it into the UPS circuit...

Thanks all for your observations and comments regarding this...
Much appreciated...

Thanks,

Howard

'Dan Crowson' dcrowson@... [DarkSkyNewMexico] wrote:

 

If you’re talking about the router in the apartments, when I was down in late January, it was still just plugged into the wall with no UPS. This is the router for the people behind 206.128.69.5.


Dan

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

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Wednesday, April 26, 2017 10:09 AM
To: DarkSkyNewMexico@...
Subject: Re: [DarkSkyNewMexico] Power question

 

 

Howard... I doubt anyone ever bought a batt for the ups I donated for that router... It's most likely still sitting where I left it 2 or 3 years ago. LOL.

 

On Apr 26, 2017 8:59 AM, "Mark Hanson markh@... [DarkSkyNewMexico]" <DarkSkyNewMexico@...> wrote:

 

Howard,

This is how it always was in the DGRO building, which I believe is on the same power as you. We had a $1500 ups for this reason, it kept things going. Probably not the safest power going to our observatories, but knock on wood no bad things have happened yet.

Mark


On Apr 26, 2017, at 9:53 AM, Howard Anderson handy13@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

Hi all,

My UPS device is signaling frequent but almost instantaneous power
failures.  Comes back up almost immediately.  I have my UPS set up
to send me a message whenever a power glitch occurs.  Are any of
the rest of you seeing this?  Or is it just the line to my building?



Here are what my messages look like:

"PowerChute Business Edition has detected the following event:
Power Failed on Agent Scope1"

"PowerChute Business Edition has detected the following event:
Power Restored on Agent Scope1"

Here are some of the times that this occurred recently:

4/23/2017 22:41 PM
4/24/2017 8:24 AM
4/24/2017 18:26 PM
4/24/2017 20:48 PM
4/25/2017 0:00 AM
4/25/2017 1:33 AM
4/25/2017 3:30 AM
4/25/2017 5:34 AM

When I come down this weekend, I am going to check to
see that the router in my building is plugged into the UPS rather
than the wall...  Not sure at the moment.  I have occasionally
lost contact for 60 seconds while working.  Might be the
router rebooting?

Thanks,

Howard


Image processing question

Howard Anderson
 

Hi,

If I have two images of M3 globular cluster taken at different times,
I should be able to subtract one image from the other and be left ONLY with
stars whose intensity has changed (like RR Lyrae short-period variables.)

Problem is that the non-variable stars in the two images do not match well enough
to not leave artifacts even though the exposure times are identical. Perhaps due to
atmosphere tiny distortions or to seeing variations or to differences in the amount of
atmosphere being looked through.

I have tried LOTS of things to "normalize" the images but have not
found any satisfactory algorithm yet.

Ideas would be most welcome if anyone knows how I might do this...

Thanks,

Howard

Re: Power question

Al Acker
 

Yea... That's the one Howard is talking about... The plan is to move that to another building but the timing for that is "flexible" at this point... When it gets moved it will be put on a UPS for sure... But it will still be up to the building tenents to UPS their own equipment. 

Al


On Apr 26, 2017 9:21 AM, "'Dan Crowson' dcrowson@... [DarkSkyNewMexico]" <DarkSkyNewMexico@...> wrote:
 

If you’re talking about the router in the apartments, when I was down in late January, it was still just plugged into the wall with no UPS. This is the router for the people behind 206.128.69.5.


Dan

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

 

From: DarkSkyNewMexico@yahoogroups.com [mailto:DarkSkyNewMexico@yahoogroups.com]
Sent: Wednesday, April 26, 2017 10:09 AM
To: DarkSkyNewMexico@yahoogroups.com
Subject: Re: [DarkSkyNewMexico] Power question

 

 

Howard... I doubt anyone ever bought a batt for the ups I donated for that router... It's most likely still sitting where I left it 2 or 3 years ago. LOL.

 

On Apr 26, 2017 8:59 AM, "Mark Hanson markh@... [DarkSkyNewMexico]" <DarkSkyNewMexico@yahoogroups.com> wrote:

 

Howard,

This is how it always was in the DGRO building, which I believe is on the same power as you. We had a $1500 ups for this reason, it kept things going. Probably not the safest power going to our observatories, but knock on wood no bad things have happened yet.

Mark


On Apr 26, 2017, at 9:53 AM, Howard Anderson handy13@... [DarkSkyNewMexico] <DarkSkyNewMexico@yahoogroups.com> wrote:

 

Hi all,

My UPS device is signaling frequent but almost instantaneous power
failures.  Comes back up almost immediately.  I have my UPS set up
to send me a message whenever a power glitch occurs.  Are any of
the rest of you seeing this?  Or is it just the line to my building?



Here are what my messages look like:

"PowerChute Business Edition has detected the following event:
Power Failed on Agent Scope1"

"PowerChute Business Edition has detected the following event:
Power Restored on Agent Scope1"

Here are some of the times that this occurred recently:

4/23/2017 22:41 PM
4/24/2017 8:24 AM
4/24/2017 18:26 PM
4/24/2017 20:48 PM
4/25/2017 0:00 AM
4/25/2017 1:33 AM
4/25/2017 3:30 AM
4/25/2017 5:34 AM

When I come down this weekend, I am going to check to
see that the router in my building is plugged into the UPS rather
than the wall...  Not sure at the moment.  I have occasionally
lost contact for 60 seconds while working.  Might be the
router rebooting?

Thanks,

Howard

Re: Image processing question

Howard Anderson
 

Hi,

Shortly after I sent this I realized that a paper I downloaded
a week ago has what I need.  Just didn't recognize it a week ago.
Now I see that it is the solution:

https://arxiv.org/abs/astro-ph/9712287

if anyone else is interested...

Thanks,

Howard

Howard Anderson handy13@... [DarkSkyNewMexico] wrote:

 

Hi,

If I have two images of M3 globular cluster taken at different times,
I should be able to subtract one image from the other and be left ONLY with
stars whose intensity has changed (like RR Lyrae short-period variables.)

Problem is that the non-variable stars in the two images do not match
well enough
to not leave artifacts even though the exposure times are identical.
Perhaps due to
atmosphere tiny distortions or to seeing variations or to differences in
the amount of
atmosphere being looked through.

I have tried LOTS of things to "normalize" the images but have not
found any satisfactory algorithm yet.

Ideas would be most welcome if anyone knows how I might do this...

Thanks,

Howard


NGC3198

Bernard Miller
 

Hi,

 

This is an image of NGC3198. This is a barred spiral galaxy about 47 million light years away in the constellation Ursa Major.

 

Comments and suggestions appreciated.

 

http://www.azstarman.net/CDK/NGC3198.htm

 

Thanks,

 

Bernard

 

Re: NGC3198

Dan Crowson
 

Nice shot, Bernard.

 

Dan

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

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Saturday, April 29, 2017 1:34 PM
To: DarkSkyNewMexico@...
Subject: [DarkSkyNewMexico] NGC3198

 

 

Hi,

 

This is an image of NGC3198. This is a barred spiral galaxy about 47 million light years away in the constellation Ursa Major.

 

Comments and suggestions appreciated.

 

http://www.azstarman.net/CDK/NGC3198.htm

 

Thanks,

 

Bernard

 

van den Bergh 47 - A Closer View

Dan Crowson
 

van den Bergh 47 (HD 37387, Sharpless 243 and others) is a reflection nebula located in Taurus. It is approximately 1.5 degrees from M1.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged December 23rd and 25th, 2016 and January 4th, 2017 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/33506380644/sizes/l

 

See my wide-field image here – https://www.flickr.com/photos/dcrowson/34217431851.

 

Dan

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

 

Re: van den Bergh 47 - A Closer View

Bernard Miller
 

Dan,

Man that is faint. Nice processing. How many telescopes do you have and where are they? These can't all be from DSNM.

Bernard



On Apr 29, 2017, at 4:14 PM, 'Dan Crowson' dcrowson@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

van den Bergh 47 (HD 37387, Sharpless 243 and others) is a reflection nebula located in Taurus. It is approximately 1.5 degrees from M1.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged December 23rd and 25th, 2016 and January 4th, 2017 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/33506380644/sizes/l

 

See my wide-field image here – https://www.flickr.com/photos/dcrowson/34217431851.

 

Dan

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

 

Re: van den Bergh 47 - A Closer View

Dan Crowson
 

Bernard,

 

My wider field view image was taken from my driveway in the St. Louis area with a 90mm refractor. Everything I post in this group is taken from DSNM. We tend to open any clear night the wind is below 15 MPH.

 

Dan

 

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

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Saturday, April 29, 2017 8:29 PM
To: DarkSkyNewMexico@...
Subject: Re: [DarkSkyNewMexico] van den Bergh 47 - A Closer View

 

 

Dan,

 

Man that is faint. Nice processing. How many telescopes do you have and where are they? These can't all be from DSNM.

 

Bernard




On Apr 29, 2017, at 4:14 PM, 'Dan Crowson' dcrowson@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

van den Bergh 47 (HD 37387, Sharpless 243 and others) is a reflection nebula located in Taurus. It is approximately 1.5 degrees from M1.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged December 23rd and 25th, 2016 and January 4th, 2017 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/33506380644/sizes/l

 

See my wide-field image here – https://www.flickr.com/photos/dcrowson/34217431851.

 

Dan

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

 

M53

Dan Crowson
 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

Mark Hanson
 

Dan,

 

Cool image especially like the asteroid!

 

Mark

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Tuesday, May 02, 2017 6:17 PM
To: 'Dan Crowson'
Subject: [DarkSkyNewMexico] M53

 

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

Bernard Miller
 

Dan,

Very nice. Did you know the asteroid was there before you took the picture or did you figure it out later?

Bernard



On May 2, 2017, at 4:16 PM, 'Dan Crowson' dcrowson@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

Gregg <ruppelgl@...>
 

Dan
Nicely resolved!  Did you do do anything special to preserve the asteroid track?  I have several of these on some recent images, but they disappear when I sigma combine.

Gregg

Visit my astronomy & astrophotography site

On May 2, 2017, at 7:40 PM, 'Mark Hanson' markh@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

Dan,

 

Cool image especially like the asteroid!

 

Mark

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Tuesday, May 02, 2017 6:17 PM
To: 'Dan Crowson'
Subject: [DarkSkyNewMexico] M53

 

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

Dan Crowson
 

Bernard,

 

I didn’t plan on this one being there but it was so bright it was hard to miss. My setup can get down to the 19’s with asteroids with a single exposure on a decent night down there. I do tend to check TheSkyX to see if there’s any when I’m imaging in the right places.

 

Dan

 

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

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Tuesday, May 02, 2017 7:44 PM
To: DarkSkyNewMexico@...
Subject: Re: [DarkSkyNewMexico] M53

 

 

Dan,

 

Very nice. Did you know the asteroid was there before you took the picture or did you figure it out later?

 

Bernard




On May 2, 2017, at 4:16 PM, 'Dan Crowson' dcrowson@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

Dan Crowson
 

Gregg,

 

I didn’t but this is a very bright asteroid. It actually looks like it was creating spikes. You might be able to combine using maximum or whatever the Maxim equivalent is to just get the asteroids.


Dan

 

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

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Tuesday, May 02, 2017 7:54 PM
To: DarkSkyNewMexico@...
Subject: Re: [DarkSkyNewMexico] M53

 

 

Dan

Nicely resolved!  Did you do do anything special to preserve the asteroid track?  I have several of these on some recent images, but they disappear when I sigma combine.

Gregg

 

Visit my astronomy & astrophotography site


On May 2, 2017, at 7:40 PM, 'Mark Hanson' markh@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

Dan,

 

Cool image especially like the asteroid!

 

Mark

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Tuesday, May 02, 2017 6:17 PM
To: 'Dan Crowson'
Subject: [DarkSkyNewMexico] M53

 

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

Madhup Rathi
 

Excellent image, Dan.

On May 2, 2017, at 7:16 PM, 'Dan Crowson' dcrowson@... [DarkSkyNewMexico] <DarkSkyNewMexico@...> wrote:

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 

Re: M53

eja24601@...
 

Nice shot, Dan! And nice capture of the asteroid. How do you go about identifying asteroids captured in your FOV? I have a few images with interlopers. I'd love to be able to identify them!

Eric

Re: M53

Howard Anderson
 

Hi Dan,

Very nice!  Asteroid is a real plus!

Thanks!

Howard

'Dan Crowson' dcrowson@... [DarkSkyNewMexico] wrote:

 

M53 (NGC 5024 and others) is a Shapley-Sawyer class V (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 58,000 light-years away in Coma Berenices.

 

The dotted line at the top left and directly above the cluster (if you follow the line) is asteroid 130 Elektra.

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged April 29th, 30th and May 1st, 2017 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/34256810882/sizes/l

 

Dan

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

 


Re: M53

Dan Crowson
 

Eric,

 

I use TheSkyX which makes it very easy. If you don’t have it (or another program that can import the current list of asteroids), you can ‘manually’ do it using the MPC and Aladin. I typed up something here - http://www.crowson.com/ASEM/How%20to%20Identify%20Asteroids%20in%20your%20Images.pdf.

 

Dan

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

 

From: DarkSkyNewMexico@... [mailto:DarkSkyNewMexico@...]
Sent: Wednesday, May 03, 2017 8:08 AM
To: DarkSkyNewMexico@...
Subject: [DarkSkyNewMexico] Re: M53

 

 

Nice shot, Dan! And nice capture of the asteroid. How do you go about identifying asteroids captured in your FOV? I have a few images with interlopers. I'd love to be able to identify them!

 

Eric

M51 The Whirlpool Galaxy

Mark Hanson
 

Here is an image i took using a 17" PlaneWave scope and 16803 camera at Stellar Winds Observatory DSNM.
Its an LRGB image, No Ha yet  but going to get that with the 24 while the moon is out.

https://static1.squarespace.com/static/57e97e6ab8a79be1e7ae0ae6/t/590a423cbebafba6193a725a/1493844552266/M51-CropDone.jpg

Thanks,


Mark