Comet 64P Swift-Gehrels 2018 Oct. 14. 19h 40m UT. Nikkor 200mm f/2 stopped down to f/2.8, D300 SLR, ISO 2500. A 30 sec. exposure on EQ3 mount. Sky transparency 8/10, seeing 7/10 Wind SSW force 2 Cropped image, dia. 1° 5' approx. Brightest star in the field: TYC 2270-570-1 mag. 6.74, spectral type: A5IV. Position of Comet 2018 October 14, 19h 42m from Rousay, imaged with Nikkor 500mm f/4, Exp.16.2 sec., D800 SLR, ISO 2500. |
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