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Leo Triplet, First time

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#1 Magellan



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Posted 04 May 2013 - 01:29 AM

Object: Leo Triplet Galaxy Cluster M66 / M65 and NGC3628
Location: Enfield, NS Canada
Camera: Canon XSi / 450D Gary Honis Full Spectrum modified
Telescope: Orion 8" F4 Astrograph
Mount: Celestron CGEM
Guiding: Celestron 80mm Guidescope with an Orion Starshoot Autoguider
Guiding Software: PHD Guiding
Captured with: BackyardEOS and dithering was used.
Subs: 40 x 120s Integration time of 1hr20m
Darks/Bias/Flats added
Processing: Pixinsight 1.8 RC7
Post-Processing: Pixinsight 1.8 RC7

Posted Image
LeoTriplet_40x120s-1hr20m_ISO1600 by AstroJeff, on Flickr

Clouds started rolling in, session cut short. Will add more data when I get back from England. This is a serious crop of the original. Having flat issues again!

This popular group is famous as the Leo Triplet - a gathering of three magnificent galaxies in one field of view. Crowd pleasers when imaged with even modest telescopes, these galaxies can be introduced individually as NGC 3628 (left), M66 (bottom right), and M65 (top right). All three are large spiral galaxies. They tend to look dissimilar because their galactic disks are tilted at different angles to our line of sight. NGC 3628 is seen edge-on, with obscuring dust lanes cutting across the plane of the galaxy, while the disks of M66 and M65 are both inclined enough to show off their spiral structure. Gravitational interactions between galaxies in the group have also left telltale signs, including the warped and inflated disk of NGC 3628 and the drawn out spiral arms of M66. This gorgeous deep view of the region was taken by the new VLT Survey Telescope (VST) and spans about one degree (two full moons) on the sky. The field covers over 500 thousand light-years at the trio's estimated distance of 30 million light-years.

#2 astrodog73


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Posted 04 May 2013 - 03:18 AM

A great result - you've nailed the focus... what focusing technique do you use?

#3 Magellan



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Posted 04 May 2013 - 07:23 AM

I use a bahtinov mask on a bright star.


#4 REC


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Posted 04 May 2013 - 01:59 PM

Very pretty...cheers!

#5 TimN


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Posted 05 May 2013 - 02:32 AM

Nicely done, Jeff.

#6 woolbrig


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Posted 05 May 2013 - 02:09 PM

That looks great! Nice job.

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