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The Southern Crown by octane2 The Southern Crown by octane2
The Southern Crown by octane2 (print image)

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The Southern Crown (Corona Australis)

Corona Australis (The Southern Crown) is a relatively small constellation. The stars which make up the constellation appear to form the shape of a slice of lemon near the "teapot" of Sagittarius. The star pattern is not as defined as its Northern Hemisphere cousin, Corona Borealis.

To the left of the dust cloud is NGC6726, NGC6727 and NGC6729 which are the blue reflection nebula objects. The fuzzy yellow patch to the left of the reflection nebulosity is the globular cluster NGC6723.

This composite consists of one set of images; one set of 30 images taken at ISO-1600.
Each individual image was a 60 second exposure.
IRIS was used to calibrate each image (dark subtraction [median combined master dark] and flat field division [median combined master flat {lights and darks}]), to register, align, and finally stack.
Photoshop CS2 was used to adjust levels, curves, frame and resize the final composite.

Target: The Southern Crown (Corona Australis)
Date: Sunday, August 20th, 2006
Time: First image: 12:00:13 AM
Time: Last image: 1:05:03 AM
Location: Kulnura, NSW, Australia
Camera: Canon EOS-20Da
Lens: Canon EF 200mm F/2.8L
Focal length: 200mm
Mount: Piggy-backed onto an 8" Meade LX90 LNT (F/10)
Alignment: Equatorial; via equatorial wedge
Exposure: 30 x 60 seconds @ ISO-1600 (RAW)
Software: IRIS: Calibration, registration, stacking; Adobe Photoshop CS2: post-processing and framing
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:iconoriontrail:
oriontrail Featured By Owner Mar 14, 2007   Photographer
Great astrophoto! How good is the high-resolution version of images like this one? Could you send me a 500 x 500 hi-res crop at oriontrail@gmail.com? thanks!
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:iconoctane2:
octane2 Featured By Owner Mar 27, 2007  Professional Photographer
oriontrail,

Thank you for the compliment.

The original final Photoshop image is awesome; it is on my computer which is at my parents place. The next time I'm there, I will send you a crop.

Regards,
H
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:iconmarshalllightbringer:
I've never seen dust clouds before...

Good job!
Reply
:iconyh-neko:
Yh-neko Featured By Owner Sep 6, 2006  Hobbyist Photographer
Whow, beau travail pour les étoiles!
Reply
:iconbodyguardmx:
BodyGuarDMX Featured By Owner Sep 4, 2006
I dun like it at all..
sry
Reply
:iconbodyguardmx:
BodyGuarDMX Featured By Owner Sep 4, 2006
too much stars at one place :/
but nice job overall
:handshake:
Reply
:iconssgtgrimreaper:
ssgtGrimreaper Featured By Owner Sep 23, 2006
It's a picture.
Do you want the stars in the universe do become all magically more like computer generated space art?
Reply
:iconbodyguardmx:
BodyGuarDMX Featured By Owner Sep 24, 2006
my bad..
Reply
:iconlunalopus:
lunalopus Featured By Owner Aug 24, 2006   Writer
This is absolutely beautiful. It's almost like colored sand designs. great job!
Reply
:iconhector42:
Hector42 Featured By Owner Aug 23, 2006  Hobbyist Photographer
Cosmic dust - wonderful shot! :clap:
Reply
:icontoop:
Toop Featured By Owner Aug 23, 2006  Hobbyist General Artist
How do you manage to catch so many stars? :o
Reply
:iconquicksimon:
quicksimon Featured By Owner Aug 22, 2006
:drool: :omg: :clap: Excellent work!! How many stars!! Love the dark Nebulosity!! Truely ooutstanding work. I want your camera.
PS. Just bought the heq5 pro mount ;):excited:
Reply
:icondeathcomes4u:
Deathcomes4u Featured By Owner Aug 21, 2006  Professional General Artist
Absolutely brilliant work as always :D
Reply
:iconjo-po-17:
jo-po-17 Featured By Owner Aug 20, 2006
Your too amazing! you astronomic photos are amazing! i love them :D and your so smart too, you know too much for it to be good for you.:D
Reply
:iconcapndeek373:
CapnDeek373 Featured By Owner Aug 20, 2006  Professional General Artist
So many times when one sees photos of the dust lanes in the Milky Way, or any given nebula with dust clouds, they still really seem to look like just an absence of stars rather than the dust clouds they are.
This photo really looks like the dust cloud it is.
It reall really looks like dust in front> of the stars!
Well done!
Reply
:iconelgaris:
Elgaris Featured By Owner Aug 20, 2006  Hobbyist Photographer
That space in the middle looks so intriguing, so many stars around and yet there isn't any visible stars in that area...
Reply
:iconawkwardscience:
AwkwardScience Featured By Owner Aug 20, 2006
It's true, I'm surprised you don't get daily deviations.
Reply
:iconminion-for-hire:
minion-for-hire Featured By Owner Aug 20, 2006
I like this. I love the deep field effect, as well as the nebula effect.
Reply
:iconinsidedamnation:
insidedamnation Featured By Owner Aug 19, 2006
Your photos should be on the dA front page.
Reply
:iconthairosebud:
Thairosebud Featured By Owner Aug 19, 2006
Tea with a twist of lemon. Such a southern style thing, my sort of thing!
I was about to note you as well to see how you're doing, but obviously you've been busy photographing.
As always a gorgeous piece that leaves us all in awe.
I don't know how you do it.
And no smart ass comments about looking at your journal to find out!
:heart: TRB
Reply
:iconwaterneko:
WaterNeko Featured By Owner Aug 19, 2006
Beautiful as usual...

I wish I could take pictures like you^^
Reply
:iconimmortaldesigns:
immortaldesigns Featured By Owner Aug 19, 2006  Hobbyist Artisan Crafter
Oh wow, that's really amazing man.. you have some awsome skills :nod:
Reply
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August 19, 2006
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