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 Leo Triplet and The Tidal Tail of NGC 3628 
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A mere 30 million light-years away, large spiral galaxy NGC 3628 (left bottom) shares its neighborhood in the local Universe with two other large spirals, in a magnificent grouping otherwise known as the Leo Triplet. In fact, fellow trio member M65 is near the center left edge of this deep cosmic group image, with M66 just the right. But, perhaps most intriguing is the spectacular tail stretching down for about 300,000 light-years from NGC 3628's warped, edge-on disk. Known as a tidal tail, the structure has been drawn out of the galaxy by gravitational tides during brief but violent past interactions with its large neighbors. Not often imaged so distinctly, the tidal tail is composed of young bluish star clusters and star-forming regions. [Text adapted from APOD]

Pubblications "Nuovo Orione" Astronomy Magazine - Technical Paper - Issue April , 2016
Optics: Takahashi FSQ-106EDXIII F/3.6 383mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: QSI-683WSG
Filters: Astrodon E Series Gen II LRGB 31mm
Guiding Systems: SX Lodestar
Dates/Times: 26 December 2014 / 18-24 January 2015 / 21-22 April 2015
Location: Pragelato - Turin - Italy
Exposure Details: L:R:G:B => 600:150:150:150 = > (40x15):(10x15):(10x15):(10x15) All Bin1 [num x minutes]
Cooling Details: -35 C
Acquisition: Voyager, Maxim DL/CCD, TheSkyX
Processing: CCDStack2+, PixInsight, PS CS5
Mean FWHM: 1.81 - 2.65
SQM-L: 19.98/20.12