Tarantula and Web in Hubble Palette

[avandonk]

Data. 32x16 min 3nm SII to red, 33x16 min 3nm NII to green and 26x16 min 3nm OIII to blue.

Used this recipe to adjust to Hubble Palette

http://bf-astro.com/hubblep.htm

Full res image 9MB

http://d1355990.i49.quadrahosting.com.au/2013_10/NGC2070_NB_HP.jpg


Bert

Astrograph is an Officina Stellare RH200 which has a focal length of 600mm and is F3, yes F3! Clear aperture is 200mm.
FLI Atlas Focuser.
FLI ten position filter wheel CFW-3-10 with 50mm square filters.
Astrodon E series LRGB and HA, NII, SII and OIII 3nm NB filters. Also a continuum filter 5nm.
Camera is a FLI PL16803 which has a sensor size 36.8 X 36.8 mm.
The FoV of this system is 3.5 X 3.5 degrees.
Mount is a Software Bisque PMX.

[acropolite]

Very impressive Bert, I can never resist going to the large version...:thumbsup:

[wobbygong]

Hi Bert,

Im new to IIS, and this is my first visit to the astrophoto section, and yours was the first picture I saw. And I am slightly lost for words ....but Wow! ( its lame I know, but I am astonished by this picture). Its like some kind of work of art.

My only experience of astrophotography has been shooting short exposure (35 mm film) photos down a 80mm refractor, ( the moon and jupiter), when i was a kid. They turned out ok, but nothing like this.

I have about a million questions. I'll spare you most of them (I'll look em up on Google). But I have to ask one ... what kind of lens did you use?

cheers

charlie

[el_draco]

Yeah, well I've been here for years and all I can say is "ditto" :eyepop::eyepop::eyepop:

[astronobob]

Holy Torledoa Batman, Awesome stuff as usual Bert, out of my leaque and that Tute looks very interesting, Thanx for showing :thumbsup: :thumbsup:

[MLParkinson]

Awesome! Far better than my Tarantula region image.

[gregbradley]

Nice work Very deep.

Greg.

[avandonk]

Thanks for all comments. Charlie I have put system details in the first post.


Here is a much better version processed after a good nights sleep. I used StarTools to reveal the very bright areas. Note the detail in the Tarantulas heart!

Native camera pixel size 9MB

http://d1355990.i49.quadrahosting.com.au/2013_10/NGC2070_NB_HP_N.jpg (http://d1355990.i49.quadrahosting.com.au/2013_10/NGC2070_NB_HP_N.jpg)

and upsized by a factor of 1.5. 20MB

http://d1355990.i49.quadrahosting.com.au/2013_10/NGC2070_NB_HP_L.jpg (http://d1355990.i49.quadrahosting.com.au/2013_10/NGC2070_NB_HP_L.jpg)


Bert

[strongmanmike]

Now that is one very cool system :thumbsup:

[wobbygong]

Thanks Bert, I'm too much of a dinosaur to fully appreciate the virtues of the camera (though Im doing some homework on digital imaging). But the lens/optical system wasn't lost on me! 600mm FL and F3 no less - what a beast!
cheers

[Bassnut]

wow, thats a head spin, totally different to any other trant ive seen. Excellent!.

[Joshua Bunn]

Hi Charlie,

its in the opening post :), "Astrograph is an Officina Stellare RH200 which has a focal length of 600mm and is F3, yes F3! Clear aperture is 200mm."

lovely Bert, quite unique.

josh

[Elio]

Wonderful sujects that you have there...well done! ;)

A question: you say "200mm clear aperture", what does it mean?
Since obstruction is 55% what is actual diameter of the tube?

Many thanks :thumbsup:

EDIT: sorry but I heared that in astronomy it's more important the T-stop (http://en.wikipedia.org/wiki/F-number) instead the f-stop, what do you think about it?
Thanks again...

[avandonk]

You are quite correct! What is the T-stop of an FSQ 106 with/without focal reducer? With more than twelve glass to air interfaces light flux losses will add up.

I can only go on the results I am getting with the RH200.

The central obstruction of the RH200 coincidentally is the size of the objective aperture of an FSQ106! The annulus is about three times this area.

Bert

[Elio]

Ok, understood, 200mm is not clear aperture...a good choice for your use, perhaps the pixels a bit big to 600mm...
For my travelling astrophoto I keep dreaming an fsq106, or the new Vixen1007f3.8, collimation and price wins for me ;-)
Thank you!

[lazjen]

This is fantastic. Love the images. If I could ever get anything a tenth as good as this I'd be over the moon. :)

Also, what made you choose 16min subs?

[Joshua Bunn]

Haha, i thought the same thing

[ourkind]

Beautiful image WOW

[Rex]

Pretty cool Bert. I love it.