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  1. #1
    afigueroa's Avatar
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    Default Sirius A & Messier 2



    Here are a new photo of Siriuis and the max info that i could get from M2 without put too much noise on it usign PI.

    Sirius is a 20 minutes exp with subs of 40 seconds iso 800 and LP filter Orion
    M2 is only 11 minutes exp with subs of 11 seconds iso 800 and LP filter Orion
    The two from the city, no flats, no bias, no guiding.

    Messier 2 also called NGC7089 is globular cluster in Aquarius around 37,500 ly can be seen with binos or simple view in dark skies with an aparent magnitud of 6.5

    Discover first by Jean-Dominique Maraldi in 1746, 14 year later Charles Messier re-disvover thinking it was a nebula, until 1783 by William Hershel was the first to resolve stars in this little cluster.

    It has a diameter of 175 ly and it has around 150,000 stars and it has around 13 billion years old
    .



    Sirius A With an apparent magnitude of −1.46, Sirius is the brightest star in the night sky, almost twice the brightness of the seconds brightest star, Canopus.[57] However, it is not as bright as the Moon, Venus, or Jupiter. Mercury and Mars are also brighter than Sirius at times.

    It is at 8.6 ly and it is the five near star to our system it is a binary system with Sirius B a dwarf white star.
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    120mm Orion Refractor Achromatic f/8.3, Explore Scientific Levy Comet Hunter 152mm f4.9, William Optics Megrez 90 APO, Sky View Pro Mount and Orion Atlas Mount
    Orion StarShoot Pro V2 Color CCD Camera, Canon 1000D (XS) / Orion Starshoot Planetary Imager III
    http://astrofotoamateur.blogspot.com/
    http://www.flickr.com/photos/astrofotoamateur/

  2. The Following 7 Users Say Thank You to afigueroa For This Useful Post:

    andyp180 (01-13-2011),Canon Pete (01-13-2011),Dublin sky watch (01-13-2011),ghswen (01-13-2011),kwalker (01-13-2011),PN PM (01-13-2011),Yoddha (01-13-2011)

  3. #2
    Dublin sky watch's Avatar
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    Default

    Excellent image of Sirius sir..
    I would have that one printed and framed and hung on the wall Antonino...
    Declan.
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  5. #3
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    real nice images antonino.
    thank you for sharing them with us.
    clear skies,
    andy

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    andy

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  7. #4
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    Well done , like them , the diffraction spikes in firs image are real nice and oriented brilliantly.

    Clear Skies

    Pete
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  9. #5
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    very nice images.
    definitely keepers.
    The LP filter did a nice job with contrast and background.
    again very nice.
    Ken

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  11. #6
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    Nice pin point stars!

    Looks like you have the mount under control!
    Gordon
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    Default

    You really nailed Sirius, I have been trying to get that one for two weeks with no luck, the subs havent turned out so well. Well done.
    --- Jason ---
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  13. #8
    afigueroa's Avatar
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    Quote Originally Posted by ghswen View Post
    Nice pin point stars!

    Looks like you have the mount under control!
    well under 40 seconds yes, i have orion autoguider package but i am still dealing with it and i canot guide yet


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    afigueroa's Avatar
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    Quote Originally Posted by jb32828 View Post
    You really nailed Sirius, I have been trying to get that one for two weeks with no luck, the subs havent turned out so well. Well done.
    Continue with your work, you only have to consider about the exposure not to burn the star, like globular clusters.

    Regards
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  15. #10
    afigueroa's Avatar
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    Thanks to all for take a look and comment, i made more with M2 i didnt like the brown background and for me the object was litle dark, so i tweak a litle the background and streach a litle more the object and stars.. i hope you like.

    REgards
    Antonio
    Attached Images Attached Images
    120mm Orion Refractor Achromatic f/8.3, Explore Scientific Levy Comet Hunter 152mm f4.9, William Optics Megrez 90 APO, Sky View Pro Mount and Orion Atlas Mount
    Orion StarShoot Pro V2 Color CCD Camera, Canon 1000D (XS) / Orion Starshoot Planetary Imager III
    http://astrofotoamateur.blogspot.com/
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