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October 31, 2017
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Deatail of central part of the image below with comet coma glowing green due to emission from diatomic carbon.
Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Oct. 31 (2h48-4h03UT)
with 15-cm, f/6 Maksutov astrograph and Canon 6D DSLR. Exposure time was 25x180s at ISO 3200. Total exposure time 75 minutes.
Image scale is 4.5 arc sec/pixel. Image field size is 2.2 x 1.6o Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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October 28, 2017
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Oct. 28 (2h27-2h32UT)
with 60-cm, f/3.3 Deltagraph telescope, CCD and LBVR filters. Exposure time was 60s in each filter. Total exposure time 240 seconds.
Image scale is 3.8 arc sec/pixel. Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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October 2, 2017
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Oct. 2 (2h52-2h58UT)
with 60-cm, f/3.3 Deltagraph telescope, CCD and LBVR filters. Exposure time was 60s in each filter. Total exposure time 240 seconds.
Image scale is 3.4 arc sec/pixel. Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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October 1, 2017
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Deatail of central part of the image below with comet coma glowing green due to emission from diatomic carbon.
Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Oct. 1 (1h37-2h21UT)
with 15-cm, f/6 Maksutov astrograph and Canon 6D DSLR. Exposure time was 15x180s at ISO 3200. Total exposure time 45 minutes.
Image scale is 4.4 arc sec/pixel. Image field size is 1.6 x 1.2o Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Oct. 1 (3h03-3h08UT)
with 60-cm, f/3.3 Deltagraph telescope, CCD and LBVR filters. Exposure time was 60s in each filter. Total exposure time 240 seconds.
Thin cirrus clouds caused some scattering of starlight near the comet. Image scale is 3.4 arc sec/pixel.
Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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September 22, 2017
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Sep. 22 (3h06-3h09UT)
with 60-cm, f/3.3 Deltagraph telescope, CCD and LBVR filters. Exposure time was 60s in each filter. Total exposure time 240 seconds.
Image scale is 3.10 arc sec/pixel. Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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August 23, 2017
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True color image of comet C/2017 O1 (ASASSN), obtained on 2017 Aug. 23 (1h41-1h46UT)
with 60-cm, f/3.3 Deltagraph telescope, CCD and LBVR filters. Exposure time was 60s in each filter. Total exposure time 240 seconds.
Image scale is 2.50 arc sec/pixel.
Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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August 16, 2017
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False color R filter image of comet C/2017 O1 (ASASSN), obtained in moonlight conditions on 2017 Aug. 16 (2h08-2h14UT)
with 60-cm, f/3.3 Deltagraph telescope and CCD. Exposure time was 5x60s. Image scale is 1.25 arc sec/pixel.
Copyright © 2017 by H. Mikuz, Èrni Vrh Observatory.
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