June Imaging Challenge - NGC3532

iceman (Mike) · #1 01-06-2005, 08:51 AM

Hi all.

We'd love you to take part in the June Imaging Challenge. Please post your deep-space images of NGC3532 in this thread. Discussions about the images can also be in this thread.

Please ensure the image obeys the image posting guidelines when you attach them.

While it would be nice if the image were taken in the month of June, it's not essential so feel free to post older images if you're unable to take some new ones.

For observation reports and sketches of the object, see the "Space & Astronomy Talk" forum.

[1ponders] (Paul) · #2 06-06-2005, 12:01 AM

Ok I'll get the ball rolling.
F/10 Celestron HD-102 EQ achrocatic refractor. Autoguided with K3 through a Meade OAG, 260 sec single shot, ISO400, Canon 300D. Focuser R&P, focus assist with DSLR Focus.

Substantial chromatic halo appears over this time frame. Less obvious but still present in greyscale image. No processing apart from croping and greyscale

iceman (Mike) · #3 06-06-2005, 06:34 AM

Great shot Paul.. wow that CA is really harsh isn't it!? I think you need a triplet APO

Nice shot of the cluster though, tracking looks spot on.

atalas · #4 06-06-2005, 06:49 AM

Paul nice shots!you just need a Tak and they will be even nicer.

Louie

[1ponders] (Paul) · #5 06-06-2005, 08:50 AM

80 ED coming. Lets hope its a bit better than an achro. I'd love an Apo. Either of you got one to give me to borrow

You'd get it back of course.......eventually

astro_south (Andrew) · #6 06-06-2005, 08:54 AM

Nice shot Paul - really shows the "arrow" outline pointing down to the left.

atalas · #7 06-06-2005, 08:58 AM

Paul the 80Ed will serve you well!

Louie

gbeal · #8 06-06-2005, 10:50 AM

Very nice shot Paul, and yes while there is a little CA, I don't find it too obtrusive. The ED80 will be better, but this is still a nice shot.
Gary

dhumpie · #9 06-06-2005, 05:48 PM

I don't find the CA obstrusive at all but then again it might just be me. Superb shot!

Darren

gbeal · #10 07-06-2005, 08:55 AM

So, in keeping with me old mate Ponders I used the 80mm refractor as well.
Single 3 minute image using the Zeiss ED80/840, with Tak .75x reducer, Nikon D100, ISO1600. StarMate of course.
Gary

ausastronomer (John Bambury) · #11 07-06-2005, 05:20 PM

Lovely photographs Guys.

CS-John B

[1ponders] (Paul) · #12 07-06-2005, 10:50 PM

So that's the difference between an ED and an achro. I can't wait. Top shot Gary.

How come your's is upside down?

Where ya been mate. Been a bit quiet around here without you.

atalas · #13 08-06-2005, 05:35 AM

Yes Gary very nice.

Louie

iceman (Mike) · #14 08-06-2005, 06:18 AM

Great widefield shot Gary, lovely pinpoint stars.

gbeal · #15 08-06-2005, 06:55 AM

Paul,
the weather has been less than encouraging, and unless there is something good to post there seems little use in talking just for the sake of talking.
As Louie will confirm, I have been about.
These "Challenges" that Mike has initiated are a cracker though. It is good to have something to concentrate on, even with tiddly gear.
Gary

seeker372011 (Narayan) · #16 24-06-2005, 11:12 PM

Ok heres my effort with an 8 inch newt (C8 NGT)

not particularly well framed but the 'mushroom" void is at least discernable