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Astrophotography and Sketching >> CCD Imaging & Processing

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David Rosenthal
Imager Extraordinaire
*****

Reged: 06/23/06

Loc: NJ
Horse Head in Ha
      #5642871 - 01/25/13 04:03 PM Attachment (25 downloads)

It has been a couple of years since I shot the Horse Head and I really wanted to see how the SXV-H9 would fair on the 125SD.

This is just under 5 hours of Ha taken over 2 nights from my backyard in North Jersey, just 20 miles outside NYC! Last night my focuser's temp probe read 9.1 degrees when I tore down. That is insane!!!

14*1200 AstroDon 5nm Ha
Borg 125SD @ f/4.6
SXV-H9,SX Wheel, SX OAG, SX ExView Guide Camera
Starlight Instruments Focus Boss II
Losmandy G11 Gemini on an AstroPhysics AWT001

>>> LARGER VERSION HERE <<<


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schmeah
Pooh-Bah


Reged: 07/26/05

Loc: Morristown, NJ
Re: Horse Head in Ha new [Re: David Rosenthal]
      #5643289 - 01/25/13 08:17 PM

I'd say it fairs quite well. Great detail on the larger version. 9 degrees? Brrrrrrrrr. So the focus boss has temp compensation? Gotta get me one of those, especially when imaging through the SCT.
Derek


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David PavlichAdministrator
Transmographied
*****

Reged: 05/18/05

Loc: Mandeville, LA USA
Re: Horse Head in Ha new [Re: schmeah]
      #5643519 - 01/25/13 10:53 PM

That's good stuff, David!

David


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David Rosenthal
Imager Extraordinaire
*****

Reged: 06/23/06

Loc: NJ
Re: Horse Head in Ha new [Re: schmeah]
      #5643526 - 01/25/13 10:56 PM

Thanks Derek! Yes it does have Temperature Compensation and it works real well, in both directions. This one is a joint venture between FeatherTouch and Optec. It uses FeatherTouch's standard focuser and MicroTouch stepper with Opetc's control box and software. I picked ip up at NEAF last year. I think I purchased the second one made. It really is a slick system. It links into MaximDL, through ASCOM, so I can use filter offsets to tweak focus when I switch R, G and B filters. Combine that with the temperature compensation and it is worry free.

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Dean J.
member


Reged: 08/13/11

Loc: Vista, CA
Re: Horse Head in Ha new [Re: David Rosenthal]
      #5643595 - 01/25/13 11:46 PM

Sweet! That larger version is definitely worth a look.

Great job.


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NorthBoundTrain
Carpal Tunnel
*****

Reged: 11/23/11

Re: Horse Head in Ha new [Re: Dean J.]
      #5643756 - 01/26/13 03:18 AM

Very nice David!

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Harel_Boren
Vendor-The Boren-Simon PowerNewt Astrograph


Reged: 03/15/09

Loc: Israel
Re: Horse Head in Ha new [Re: NorthBoundTrain]
      #5643839 - 01/26/13 06:10 AM

Well... it was worth the cold, that I can say. A very nice image, with great detail. It was worth it!
Cheers,
Harel


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broca
Carpal Tunnel
*****

Reged: 03/26/10

Loc: Ocala, FL
Re: Horse Head in Ha new [Re: Harel_Boren]
      #5644137 - 01/26/13 10:41 AM

No doubt, the imaged posted on you web page is quite stunning. Well done!

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kfir Simon
Vendor-PowerNewt


Reged: 09/21/10

Re: Horse Head in Ha new [Re: broca]
      #5644224 - 01/26/13 11:28 AM

Hi David,

Nice to see that the horsehead looks the same from NJ as from here (Israel)...
Glad to see that the cold didn't change him...

Great work - cold well spent!

Cheers,

Kfir


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David Rosenthal
Imager Extraordinaire
*****

Reged: 06/23/06

Loc: NJ
Re: Horse Head in Ha new [Re: kfir Simon]
      #5647052 - 01/27/13 10:11 PM

Thanks very much everyone!! I am real pleased with this one and I am glad you all liked it as well !!!!

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Bill W.
Carpal Tunnel
*****

Reged: 10/09/05

Loc: Western PA, USA
Re: Horse Head in Ha new [Re: David Rosenthal]
      #5647139 - 01/27/13 10:58 PM

WOW David! The detail on the horsehead is incredible.

-Bill


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J.P.M
Post Laureate
*****

Reged: 11/14/06

Loc: 65"01'N25"47'E
Re: Horse Head in Ha new [Re: Bill W.]
      #5647458 - 01/28/13 06:26 AM

Stunning work.

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