My widefield Horsehead, Flame, Running Man and Orion Nebulae

I tried something new that I have not done before and that was to piggy back my 200mm lens with the Canon 60Da camera onto the 14".  I had planned on guiding but the coldness of mid 20*F kept me from that extra bit of setup.  I found that the 200mm at f/4 and 1600ISO on the 60Da did pretty well up to 2min unguided and even roughly aligned.

Here's a 1900x1200 HD version that will fit your screen pretty well http://i.imgur.com/4hYb6LM.png

Here's the monster full res version of 5200x3400, from the camera's resolution!  http://i.imgur.com/OUeiMQU.jpg


Next time I will try guiding but I think there might be a portion of my finder in the lower areas of the frame that is reflecting some light into the lens.  I'd like to look at resurrecting my old 6" with 4" guide scope onto a new mount for these types of shots as it is VERY fun and rewarding to use a one-shot color camera on nebula.  Nextime I will work harder to mask the brighter areas of the Orion Nebula too, as it's a bit washed out in some areas.

Thanks for looking,

Mike

2015 Solar System Bests!

Every year since 2008 I have assembled my own images in a mashup format.  Inspired by +Mike Salway  (http://www.mikesalway.com.au/) I have tried to pick the best images I took of planets during the calendar year.  A couple of years ago I got into comets and asteroids and have been trying to contribute to the Minor Planet Center's research (http://astromaphilli14.blogspot.com/p/all-michael-phillips-observed-asteroids.html).  My previous best of's are all here:

http://maphilli14.webs.com/annual-solar-system-bests


This year found a drop off in imaging from 71 nights in 2014 to 33 in 2015.  While I have a growing addiction to my favorite video game +Destiny the Game I also know that this year was the rainiest and cloudiest I've seen since moving to North Carolina in 2003.  Last year was probably busier because of the Mars opposition. This year the slack of one less planet would have been taken up with additional Deep Sky work, but those partly cloudy nights just weren't worth the effort.  Perhaps with Mars a partly cloudy night may have been worth a peek through some thin clouds but not faint fuzzies.  For those wondering I keep my astro logs in a great open source program called Observation Manager


Ok, on to this year's image, 1st with labels.... full resolution (1920x1200) on imgur

...and for you wallpaper weenies like me, the unlabeled version ... full resolution (1920x1200) on imgur.  I tagged the image

http://creativecommons.org/licenses/by-nc-nd/4.0/

CC BY-NC-ND 4.0

Multimedia by Michael A. Phillips is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This year still had no Mercury or Pluto but I did get Eris. Which is seen in the lower right taken on three consecutive nights in early October.  I was amazed at how bright it is to have only been discovered in 2003!    Here's an animation in gifv format...

Here's to a decent 2015 and let's get more clear skies in 2016!  

Happy New Year!

Mike

First Mars of the 2015-2016 season

My novice eyes notice some interesting clouds on the morning limb around the areas of Tempe and Tharsis.  Just south of the North Polar Cap I spy some clouds over Mare Acidalium.  There also seems to be some interesting brightness around Cydonia.  Overall I was quite pleased with the way this image came out given it's very early and still quite low this apparition.

New approach to processing moon photos.

I took a series of 20 shots of the moon with my DSLR the other night.  Normally I choose the best 'one' and process it.  I have known for a long time that picking the top of the set, say X% and stacking them in Registax or AS2 would give much better results.  I've always struggled to do so.  I'm not sure if it's because I used the Canon raw (CR2) file format or because DSLR have massive resolution, but stacking has never worked well for me.  This time in particular I really struggled to get the photos to line up as I kept moving and recentering.  I took a cue from fellow CN'er zAmbonii (https://www.youtube.com/watch?v=-sTcrONM24w)  and added a few of my own twists.

1. Open photos in Adobe Bridge all at once and crop all, painfully and individually.
2. Save as tiff with no compression
3. Use Adobe Bridge to open all tiff files as layers in single image
1. Select all cropped photos
2. In Bridge select the menu "Tools -> Photoshop -> Load Files into PS Layers"
4. Auto align using
1. Select all layers
2. Edit / Auto-Align Layers / Auto
5. Then after some waiting most all the layers are 'really close' to being 'stacked'  At this point you can either
1. Set all layers but the bottom to 50% opacity and call it day.
2. Export as tiff using
1. File / Scripts / Export layers to file
6. Once exported as uncompressed tiff you can open them in Registax and have a MUCH easier time stacking as you normally would!
7. After saving a stack of 14 and another of the full 20...
8. I sharpened in AstraImage
9. Opened in PhotoShop again for
1. Denoise with Topaz
2. High Pass Filter with contrast
3. Saturation

Thanks and enjoy some new tricks!

Bright spots on Neptune

Back in mid July of 2015 it was brought to the attention of several amateur astronomers like myself that there are bright spots on the cloud surface of Neptune.  A request was made by professionals to help observe these spots in red or narrowband IR.  I have had a string of poor weather and didn't have a chance until mid September.  On September 20th, I had some moderate conditions to try.  My method was to shoot wide field with the CCD as seen here.  I've superimposed an high-res RGB image on top to help identify Neptune.  The brightest and closest 'star' to Neptune is about the 7 o'clock position (lower left) and is actually the largest moon, Triton.

If you read the stats, Neptune was 241.3 light minutes away at the time of this photograph.  That's just over 4 light hours away.  For fun here's a size comparison via the wikipedia page.

At that distance Neptune is only 2.4 arc minutes in size and the top image that I took is fairly close to what you might see in a moderate telescope at medium magnification.

After some wide-field CCD shots, I put in my high-res planetary camera and took some LRGB as well as Infra-Red (742nm) shots.  Here's the aesthetically pleasing composite consisting of all 5 filters that also includes a Triton.

Finally for the detail oriented here's the full layout, including the sub channels used in derotation.

Also here's the alignment reference from the Neptune Ephemeris Generator (http://new-pds-rings-2.seti.org/tools/ephem2_nep.html)

Thanks for reading and please do some well wishes for more clear skies for me, they've been far and few between.

http://www.wunderground.com/history/airport/KRDU/2015/9/30/MonthlyCalendar.html?&reqdb.zip=&reqdb.magic=&reqdb.wmo=

If anyone is interested all source tiffs, sharpened files and WinJupos measurements are on my public Google Drive share located here  and contained in a 30+MB .zip file - > https://drive.google.com/file/d/0B9dWDZG-h1gvZ2tGdUNKTWQ1eE0/view?usp=sharing

A very **UNFAIR** comparison of CCD to DSLR!

This is a very **UNFAIR** comparison of CCD to DSLR!  It's unfair because of the following.

Differences

1. Taken on different nights
2. Guiding methods - 50mm finder guiding on DSLR and OAG for CCD
3. Coma corrector on CCD, NOT used on DSLR
4. 2x2 binning on the CCD, native iso6400 on DSLR

Similarities

1. Same telescope, +Akule my custom 35.6cm f/4.5 Newt
2. Similar processing routine

Also of note, the image scales are quite different and were somewhat difficult to line up.  I got 'close enough' and stopped getting precise alignment.  I don't think this a valid or fair comparison but a nice contrast to both style of cameras.

Here's a three frame animation comparing.

1) RGB via the DSLR only

2) Lum via the CCD and no filters at all

3) A standard LRGB combination of the filterless CCD as lum and the one-shot color as RGB.

Here's the DSLR ONLY

Here's the filter-less CCD 'lum' shot only

Finally the LRGB combination

Perhaps it not even a comparison at all, but the lack of clear skies and poor planning had me running over the same objects within a week's span or so and having used different cameras got me hankering for a comparison even it wasn't like for like

Hope you enjoy and feel free to comment or critizice!!

Speaking of spring clouds and rain, here's 3 planets in one night to make up for it all!

Be sure to get to the bottom of this for something unique that I've never done before!

Weak spring astronomy weather, shoot three planets to make up for it.   YES!

I shot Venus, then Jupiter and finally Saturn.  I'll lead off with Jupiter since it's not as big as it used to be and well past peak.

Sporting a view of the little red spot, this is probably my last view for the year.  Although.... it's proximity to Venus might allow me a few more tries if the weather clears back up.

Rest of this spotty season here - https://plus.google.com/photos/+MichaelAPhillips/albums/6110337235125938065

Previous Jupiter seasons here - http://maphilli14.webs.com/jupiter

Next up is a pretty nice looking Saturn.  At a low altitude of 37° altitude, this will be hard to beat this year.  The rings have opened up to 24° since being edge on in 2009

The rest of 2015 is here - https://photos.google.com/u/0/album/AF1QipMDzUOnk6T0QJnWMeivPCpLE3TwLgN6oK7dqLed

You can view all years of my own photos of Saturn here - http://maphilli14.webs.com/saturn

Finally and oddly the first photo of the night is Venus.  This image is in false color, comprised of Infra-red as Red, UltraViolet as Blue and Green is a 50%/50% blend of those two.  I used the UV as a lum al-la this technique (https://www.youtube.com/watch?v=oOeog89qnPY&feature=youtu.be)

All my previous Venus' - https://plus.google.com/photos/+MichaelAPhillips/albums/5856527934636955329?banner=pwa

Now to reward you for all your hard reading!  In the past I've shot Venus over a short time period but have not really gotten a chance to show the winds move the clouds.  Here's a short, two frame animation showing the cloud movement over just a few 10's of minutes.

Thanks and clear skies!