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Antares and M4

Photography Space posted on Sep 26, 2005
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Description


This photo was a 20 minute exposure shot through a Celestron WA-80 (esentially a 400mm f/5 lens) on Kodak E200 slide film. The bright red star in the center of this view is the star Antares in the constellation Scorpius. Since this star is found within the Zodiac, which contains the apparent path of the Sun and planets, it is commonly mistaken for Mars. In fact, it's name "Antares" indicates this. Broken down, "Ant-Ares," means "like Mars," "Ares" being the Greek name for the god of war. This star is rouhgly 600 light years distant. It's of a variety of stars known as Red Giants. And is the 13th brightest star in the nighttime sky. Taking into account its distance, this star is 10,000 times brighter than our star, the Sun. If this star were in place of the sun, its surface would reach out to about 3/4 the distance to Jupiter.....we'd be baked! Ok, the other main object of this shot is the Globular Cluster M4 to the right of Antares. It sits at a distance of about 7200 light years - relatively close for these types of objects. It's about 75 light years in diamater, meaning it takes the light from a star at the edge of this cluster 75 years to travel to the opposite side.

Comments (8)


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fluffgirl

7:45PM | Mon, 26 September 2005

Wow. what an amazing photograph. it looks like one of my made up background for graphics but this is real those planets are really up there. that is some powerful camera you have there.. . thank you for showing all those wonderful stars to us

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TomDart

9:16PM | Mon, 26 September 2005

Well done! I have an old, very old reflector. I have yet to try imaging with it...likely need a new and steadier mount. Having appreciated the night sky all my life, I do very much appreiate this image. Thanks for the exposure info. Your telescope must track pretty well for 20 min. TomDart.

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Aegothis

9:41PM | Mon, 26 September 2005

I think I have mistaken Antares for Mars lately. Nice picture, not too many people share these things here. It's great.

jared99

11:23PM | Mon, 26 September 2005

That is just fantastic! Wonderful shot of the cluster. And thanks for all the interesting info!

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cbender

2:42AM | Tue, 27 September 2005

WOW! :) this is really impressive! no question - a classy pic! thanks for sharing!

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killerpumpkins

9:19AM | Tue, 27 September 2005

I can stare at this for hours and imagine the different possibilities of life elsewhere. Very clean picture. KP

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jcv2

4:23PM | Tue, 27 September 2005

Incredible distances you bridge with your Celestron telescope! Whew! Impressive shot of this part of the sky, so many details in beautiful colors! Excellent work!

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PR0XIM0

11:52AM | Fri, 30 March 2007

That's simply wonderful! I like so much this picture,panoramic views are my favourites, and this is so great


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