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Lion Nebula SH2-132 - RC71

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Posts Made By: Alan Friedman

April 3, 2006 03:40 AM Forum: CCD Imaging and Processing/Solar System

First Jupiters at 31 degrees

Posted By Alan Friedman
Way too much work for the results - but what else is there to do at 2:00am! smile

cheers-
Alan

April 3, 2006 04:02 AM Forum: CCD Imaging and Processing/Solar System

Snapshots of the Sun

Posted By Alan Friedman
Solar activity was beautiful today in Hydrogen Alpha. Imaging was very hard due to the turbulence of the air. The images of the active regions are each made from single webcam frames.

Happy Monday -
Alan

April 8, 2006 11:09 PM Forum: CCD Imaging and Processing/Solar System

postcard from the edge

Posted By Alan Friedman
The sun sported some very nice activity on its edge today - these recorded in very turbulent seeing (so what else is new?!)

best wishes -
Alan

90mm Coronado filter/ Zeiss APQ130 with 2X Powermate/ DMK21BF04 webcam

April 10, 2006 01:33 AM Forum: CCD Imaging and Processing/Solar System

Sun and the pale blue dot

Posted By Alan Friedman
The sun continues to offer some dramatic activity in Hydrogen Alpha - this massive bank of prominences portrayed with a disk to represent the approximate size of the earth in comparison.

best wishes -
Alan

April 11, 2006 03:03 PM Forum: CCD Imaging and Processing/Solar System

Re: Difference between DMK 21AF04 & 21BF04???

Posted By Alan Friedman
Hi Robert -

The cameras are identical in design and performance - the B model has an external trigger port that you will not need. I would have chosen the A model if it had been available when I bought mine.

best -
Alan

April 15, 2006 06:56 AM Forum: CCD Imaging and Processing/Solar System

Ganymede by Jove

Posted By Alan Friedman
Jupiter and its largest moon stood fairly still for this LRGB portrait captured last Sunday with the Astro-Physics 10" mak and DMK 21BF04 webcam. IR, R and G streams were used for luminance. Elevation about 31 degrees.

Have a very happy Easter and Passover, all -

Alan

April 30, 2006 07:40 PM Forum: CCD Imaging and Processing/Solar System

A Big Sun

Posted By Alan Friedman
Hi all -

This sun portrait was stitched together from 16 single webcam frames taken in very turbulent air yesterday. I used my 5" refractor and 90mm coronado filter at 1 meter focal length.

If you are attending NEAF next weekend, please come by the solar star party and say hello!

happy sunday -
Alan

May 26, 2006 02:21 PM Forum: CCD Imaging and Processing/Solar System

thank you!!

Posted By Alan Friedman
Hi all-

Have been travelling for work over the last couple of weeks - it has been too hard to respond to all the excellent images posted, but it has been a pleasure to follow the forum and see your fine work while on the road.

I'm happy to be back at home and look forward to enjoying some free time again!

cheers-
Alan

June 2, 2006 01:13 PM Forum: CCD Imaging and Processing/Solar System

Re: B/w Jupiter - May 30th

Posted By Alan Friedman
Hi Robert -

Very good images! My experience is that red filtered images (at least on nights where the image is stable enough to be worth processing) will offer the same benefit as the IR but with better resolution. I had decent conditions recently and will post an image this weekend. I hope you had a good session with Ganymede.

best -
Alan

June 3, 2006 06:52 PM Forum: CCD Imaging and Processing/Solar System

Jupiter with shadow in transit

Posted By Alan Friedman
Hi all -

This image from last weekend - captured during good seeing but poor transparency. Jupiter has inched up to 32 degrees as it passes the meridian - hooray!

Taken with my 10" mak at f30 and DMK21BF04 b&w webcam with RGB filterwheel. Luminance is made from 250 frames each in red and green.

best wishes -
Alan

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