Pluto 2013

If you didn't know it has been a terrible season for astronomy in the mid Atlantic USA.  I purchased a new CCD, but that had nothing to do with the bad weather!  Despite the weather, I managed to catch Pluto 3x times.  Overlayed on this animation you can see the movement from July 22 to July 26.  The middle and last frames is from the 25th and 26th respectively and only 24 hours of movement.  I cannot say for certain but I think if you imaged Pluto over an hour or two you could see movement against the background stars.  I hope you enjoy this animation and I only wished the weather allowed me to share with the +Virtual Star Party

Individual nights capture details are as follows.

Night 1 (top position is from July 22:
 3 x 60sec = 3min

Night 2 (middle position is from July 25:
 10 x 60sec = 10min

Night 3 (bottom position is from July 26:
 8 x 60sec = 8min
 +
 6 x 120sec = 10min
=================
20min total



And the rest of my Pluto captures from all years.
https://plus.google.com/photos/108750361778865447048/albums/5913493324420415553

Back at the clearing of the summer back log - day 7

Yet another object I've already shot.  Here is M102, a small, edge on galaxy.  This time I decided a side by side comparison as it was taken with the same scope and different cameras.  The canon 7D is on the left and the SBIG STF-8300M on the right.  They were taken in different conditions and different nights.  Things that jump out at me are the image scale on the Canon is larger as it's 0.55''/pixel whereas the SBIG is 0.7''/pixel. Also, the Canon 7D is shot in bayered color mode and the SBIG being monochrome is only shot in clear / luminance channel. The other thing to note is that the integration time is quite shorter on the SBIG. You be the judge.  

Here's the recent work on M102

And the old shot

And the side by side

Not meant to be a real or honest comparison, just my happenstance results.

Summer back log part 3 - Messier 13

I mistakenly had the cooling on the ccd shut off and forgot to turn it back on, as such I didn't have any matching darks to kill the hot pixels.  However, you can see that even 32x30s (16min) are enough to bring out well over 2,000 stars and many more that DSS couldn't count.  I was happy with the framing only AFTER I found NGC 6207.  Even still, I now see PGC2085077 at mag 16.15 and even fainter ones, 3501406 and 4507623 at mag 19++

Full field

Full res (no resizing)

DSS star count

Summer back log part 2

M9 in my 14" f/4.5 (1600mm FL)

Today's image is one I had shot before and was potentially one of my earliest Deep Sky images using a narrow field of view planetary camera and an 8" at f/10

OLD image

I think I like the redo better, but the higher resolution of the 8" at 2032mm FL

neither image is of polished time and quality subframes but it's always nice to reflect on your images past and present.

This recent M9 doesn't help advance my Messier collection but it was a good time killer between others this clear night!

Summer back log part 1

Needed for the Messier list that is in the final throws, here's M107, a loose globular cluster shot in lum only at varying exposures because of no guiding and an untrusty mount.

My 1st real HaLRGB image - Crescent Nebula

1st my weak previous attempt...

over 2hours with a smaller scope and a DSLR doesn't hold a candle to the power of Hydrogen Alpha and a CCD.

Here's 36minutes of total Ha+Lum+RGB:

Ha = 4 x 300 = 1200s (1x1)
L = 2 x 300 = 600s (1x1)
RGB = 2@ x 60 = 360s (2x2)
Total Time = 0.6 hours

Limited darks and flats applied, guiding is going well and i have a good, solid 3 camera approach to finding, guiding and imaging and am really ready for a clear Sunday for the +Virtual Star Party

Pluto starter image for 2013

Only a day  and four hours after the full moon made a near miss of occultation for me in NC, I got a low quality shot of Pluto.  Occultation was 20130721-1917EDT - 20130722-2301EDT time of shot.  I had very poor transparency and as such set out to make some darks, do some PEC training and find a good fitting with all my gear under the stars.  I snuck some shots of some objects including a blind shot at Pluto via a solid precise goto.  Here in the close up animation you'll see iffy collimation and poor focus, but the fact that it was only 3x60s in luminosity shows the capabilities of this setup quite well!  The animation shows an overlaid chart from skycharts/CdC and then a highlighted red circle.

Here's the full view