Comet C/2020 F3 (NEOWISE) on the evening of 19 July 2020
Canon EOS6D with Leica Elmarit-R 180
Shot on Sunday, 2020/7/19 ca. 22:20 CEDT in Darmstadt, Germany
The comet is a lot dimmer now than when I last observed it on the morning Friday, 10 July, although the sky was much darker now. The colour of the coma has clearly changed from yellow to green, which is indicative of a change in the outgassed materials dominating the coma from sodium to cyanogen (CN)2 and/or diatomic carbon C2.
Comet C/2020 F3 (NEOWISE) on the evening of 19 July 2020
Canon EOS6D with Leica Elmarit-R 180
Shot on Sunday, 2020/7/19 ca. 22:20 CEDT in Darmstadt, Germany
The comet is a lot dimmer now than when I last observed it on the morning Friday, 10 July, although the sky was much darker now. The colour of the coma has clearly changed from yellow to green, which is indicative of a change in the outgassed materials dominating the coma from sodium to cyanogen (CN)2 and/or diatomic carbon C2.