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Дата индексирования: Sun Apr 10 04:52:37 2016
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Поисковые слова: zodiacal light
Amateur Telescope Makers of Boston

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Submitted by Al Takeda on 11/14/2013 12:52:15

C/2012 S1 (ISON) - November 9, 2013

Comet C/2012 S1 (ISON) was a magnitude dimmer than predicted when this image was taken on Saturday morning (Nov. 9) during astronomical twilight. Sharp eyed viewers will notice a satellite trail near the comet's tail.  On Thursday, November 14th it was reported that the comet is in outburst and is now between magnitudes 5.7 - 6.1.

2 images x 60-second subframes, Total= 2 minutes. Takahashi Epsilon-180, f/2.8 hyperbolic astrograph, Unmodified Canon T1i DSLR, Astronomik CLS Light Pollution filter, ISO 1600, Losmandy Gemini G-11 EQ mount. Acquisition by Images Plus, calibration, stacking and additional processing using Adobe Photoshop. ATMoB Clubhouse, Westford, MA, 9 November 2013.



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