antares

[asimov]

To most of you guys it's probably a piece of cake to capture this. This was NOT easy for me!! :help: using the 6" achro with flat batteries in the drive with crap views even at the zenith, with a POXY kodak DSLR camera..63 seperate photos & I succeeded to get one decent one! :confused:

I'll leave this to the experts I reckon!! :thumbsup:

[h0ughy]

Well done! I personally would have filled the memory card and not gained one electron in anger that would be worth looking at. And that is from experience!!!

[atalas]

Yeah thats great mate ! nice stuff your doing with the doubles ,love the colour not sure If the focuse is as tight as what It could be ? but hey what do I know.

Louie :thumbsup: :thumbsup:

[beren]

Nice one , i was just looking at Antares and managed to split it under average conditons at 416x through the SCT

[davidpretorius]

i like it!!! top stuff mate!!

[ving]

gunna hae to split it myself... i have been too lazy tho.
are the colours the same as seen ere?

[davidpretorius]

i shall have a go at asimovtares tonight. i have mr toucam ready in three modes

prime focus
afocal with eyepiece adapter clamp
afocal with eyepiece projection adapter
will let you know how it goes

[Striker]

Well Done......I dont think I have even seen it split...nice job

[gaa_ian]

I tried to split it visually last night with an 8" SCT @ 250x, no success !

[Starkler]

I have seen it once. Split with an 18 inch obsession clearly. We then tried our 10 inch dobs and thought we could see it every now and then for fleeting moments using averted imagination.
It tooks very good seeing to split.

[asimov]

Atalas: Yeah, it ain't easy getting focus in a 2.5" lcd screen on the back of the camera....hence 63 photos. Really is trial & error! take 6 shots, tweak focus, take another 6 tweak etc etc. I've used a hartmann on the newt but have'nt got around to making 1 for the refractor. I'm satisfied with one pretty ordinary shot of Antares though, time to move on to something else..

Ving, seeing I was using an achro not sure if this would be it's true colour or not really. I would say it would be close to that green?

Ian, you should be able to split the rotter at that mag a piece of cake..Gotta be pretty good conditions though..that pic of mine is @ 160X & cropped big time to get in close..

Thanks guys!

[gaa_ian]

Hmm .... will have to try earlier in the evening when it is higher in steadier seeing !

[Dennis]

Hey Asimov

That is no mean feat! You have done a great job, with oodles of separation between the pair - well done.

Cheers

Dennis

PS - here is my best effort with a 4" Vixen http://www.iceinspace.com.au/forum/showthread.php?t=2814

[[1ponders]]

Nothing wrong with that shot Asimov :thumbsup:. Definately not easy focusing like that.

I'd like to know what causes the green colour too. In both your shot and Dennis'. There are no green stars????

[asimov]

Hi Paul, this link answers your question, rather than me trying to!
http://curious.astro.cornell.edu/question.php?number=14

[asimov]

After re-reading that link I just posted, It sounds kinda contradictive? Heres a little extract out of an article in a book I have..


Viewed by an eye not subjected to other strong
lights, and with very little other light sources in the
field of view, will virtually never look green. But put the same
star (which we can assume to appear white when viewed in isolation)
close to another reddish star and that same star may immediately
look greenish, due to contrast effects (the eye tries to make the
"average" color of the two stars appear white).

That seems to sum up Antares to a tee.

[asimov]

Thanks Dennis. BTW that shot of yours is what got me on a roll to see if I could capture it as well. I've split it several times now visually, but I wanted to get the lil' devil on camera as well. :thumbsup:

[Dennis]

Hi Paul

I remember reading once that Antares' companion was actually blue - it only looks green visually due to a colour contrast effect with the intense red/orange of Antares. On my LCD display my image does look more blue than green, although I did not pay any attention to colour balance when I processed that image.

Cheers

Dennis

[[1ponders]]

Thanks Dennis :thumbsup:

[Dennis]

You've done remarkably well given the set up and conditions you described. I had been trying for a couple of years before I finally succeeded in imaging the secondary.

Cheers

Dennis