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Thread: Here's my official start to the M40 sketch award!

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    Default Re: Here's my official start to the M40 sketch award!



    Nice job Carl. I love seeing the times that people were doing their sketches - it is great to know that there are people half way around the world up at their 2 in the morning as well
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    Default Re: Here's my official start to the M40 sketch award!

    It has been two months since my last real observing session (I didn't realize it has been that long!). I finally got out tonight and spent some time at the eyepiece. It wasn't that cold, about 30F (-1C), which was a nice relief. I was only out for about 90 minutes but I didn't get cold. Sadly, it was a frustrating evening. Frost was a HUGE issue. I typically steal my wife's hair dryer to take frost off the eyepiece, but today it would frost over within 10 seconds of looking through the scope. If there was a way I could hold my breath for 10 minutes while at the eyepiece....

    Also, my wife was working at the kitchen table and needed the light on--which is right by my observing area. The blinds aren't good, so I had to deal with that light as well which made my conditions worse.

    Oh-well, despite the frustrating conditions, I at least did two new sketches. My wife got me some white gel pens for my birthday and I wanted to try them out. They worked perfect for the brighter stars. I also used black construction paper this time which was a better choice. I'm thinking I might need to use charcoal and brushes to get better control, but a simple white colored pencil will work for now.

    I also decided to try to NOT include a circle showing the field of view. I was more liberal in including things that were outside my field of view but that I thought were important. I kind-of like the effect. Let me know what you think.

    Once again, I did them using both the 12" dob and the 70mm refractor. Remeber that my dob rotates the image compared to the refractor, so that is why the sketches look different.

    My first object I sketched was M33, Triangulum Galaxy. Seeing and transparency weren't horrible, but with the light on in the kitchen it made it more difficult to see. I can typically see spiral arms (faint and with averted vision, the surface brightness of this galaxy isn't great) with my AD12, but tonight I could BARELY imagine two small, faint arms coming off at the top. If you use your imagination in my sketch you can see those two faint arms as well. I was also amazed at how much brighter the stars were in the AD12. Using the gel pen and white pencil, you can see the difference in the both the brightness and the number of the stars that are in the AD12.

    M33 70AZ AD12.jpg

    Since I was having issues seeing with the frost and with the kitchen light, I decided to switch gears and do an open cluster. I moved over the M45, Pleiades. Wow, I didn't expect this much difference between the 70mm and the 12" scopes. A few years back I had a hard time comparing what I saw naked eye (which I can see the 7 brightest stars naked eye from my backyard) to what I saw in the telescope. It was hard to find the shape of the 7 stars (that "dipper" shape) in the telescope due to all the other stars. This is much more true with the AD12. The sketches show the difference between the 70mm and the AD12 nicely. Also, as a bonus, there was a FAINT haze around the brightest stars (except for the one that makes the "handle" that is named Atlas). This haze was super faint and I suspect it is the associated nebula. However--maybe it was just frost... I really liked how the stars turned out using the white gel pen and the pencil in these sketches.

    M45 70AZ AD12 small.jpg

    I only did the two sketches tonight. I also spent sime time looking at M42. That always puts on a good show. I then went over to the Tau Canis Majoris Cluster, C64 or NGC 2362. I like this cluster because Tau Canis Majoris is a pretty star in middle of the cluster. I also just sat on my observing chair and looked at the skies because I was frustrated with the frost so I just enjoyed the view.

    I didn't see a lot tonight, but I got two sketches in and I think I am slowly improving my sketching technique with each sketch. Now the total count of sketches is 9.
    Carl
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  3. The Following 2 Users Say Thank You to hineas For This Useful Post:

    bladekeeper (01-19-2017),Makuser (01-19-2017)

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    Default Re: Here's my official start to the M40 sketch award!

    Nice write-up, Carl, and good sketches. I enjoyed the comparisons between the scopes. Very nice.

    The nebulosity you noted and sketched with the AD12 is much how I can see M45 here with my AD12. I had a fun tour of these back in November: The Tresses of the Seven Sisters

    Anyway, glad to see you getting some time in. It has been a rough past few months here with bad sky conditions. Might have a window on Friday if the cloud gods don't shut it down.

    Thanks for posting these, Carl.
    Bryan
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    Default Re: Here's my official start to the M40 sketch award!

    Bryan, I agree. Your description of M45 nebulosities is the same as I see it. That makes me feel better that it wasn't just frost on my eyepiece!
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    Carl
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    Default Re: Here's my official start to the M40 sketch award!

    Bryan, did you also notice I included those diffraction spikes on the brighter stars that you mentioned that you saw on M45?
    Carl
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    Default Re: Here's my official start to the M40 sketch award!

    Quote Originally Posted by hineas View Post
    Bryan, did you also notice I included those diffraction spikes on the brighter stars that you mentioned that you saw on M45?
    Yes sir, I did indeed!
    Bryan
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    Default Re: Here's my official start to the M40 sketch award!

    Hi Carl. This is some excellent work, And, I too like the comparison sketches between the 70AZ and the AD12 telescopes. I too noticed the interesting surprise in your last post when you included the diffraction spikes from the Newtonian spider vanes. The AD12 certainly adds much more nebulosity, and I really enjoyed your M45 sketch. The Pleiades (Seven Sisters) is my favorite Messier Object. Congratulations on being up to 9 now Carl, and the best of wishes on the rest of your Messier 40 Sketching Award mission.
    - Marshall

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    Default Re: Here's my official start to the M40 sketch award!

    What a great night. I completed 2 sketches AND I spent a few hours just observing. I actually saw 17 new objects tonight and I saw Jupiter better than I have ever seen it (amazing at what doing a good collimation and having good seeing will do).

    Tonight I sketched M1 and M3. I was fighting frost on my eyepiece from my breath, but I was able to deal with it.

    M1 was faint in my 70mm refractor. I can see why people sometimes have difficulties finding it because it is fainter than I would have expected. I could still see it without averted vision, but it wasn't too exciting with my 70mm. The 12" dob, however, was much better. There was still no structure (I would have thought it a galaxy if I didn't know better), but it was bright and easy to find. I'm always amazed at the difference between 12" of aperture vs 2.75" (70mm).

    The magnification with the 70mm was 45x, the AD12 with the 25mm is 60x. As such you will notice the nebula is bigger, but most of the size difference is due to the brightness and seeing more of the nebula. It looked small and faint with the 70mm and you can barely see it in the sketch.

    M1 70 vs AD12.jpg

    Next was M3. This is a globular cluster. It was faint in the 70mm and I couldn't make out any individual stars. The AD12 showed a great view with MANY individual stars. It was bigger, brighter, and I was surprised to see a smattering of stars near the "fuzzy" portion of the cluster. I didn't increase the magnification on the AD12, but I know that if I would have there would have been even more stars visible within the cluster.

    M3 70 vs AD12.jpg

    It was a great night! Now I'm up to 11 sketches.
    Carl
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    Default Re: Here's my official start to the M40 sketch award!

    Nice job Carl. I love the comparison between the two telescopes.
    Thanks for sharing your work here!
    路易斯 LG
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    Default Re: Here's my official start to the M40 sketch award!

    This is a great start. I look forwards to seeing more of your work. Thanks for posting. Good luck with your other sketches. Clear skies.
    Peter.


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