Happy New Year everyone.
Observing statistics for 2020, with 2019 in parentheses. Birmingham!
2020 proved to be my clearest year since my records began in 1978, beating the previous best in 1995 by 3 nights. 1995 had many more totally clear nights than 2020 however. The excellent Spring helped, with 50 observable nights in March, April and May alone!
Clear nights (less than 50% cloud) 44 (29)
Partially clear nights (50% or more cloud) 95 (61)
Total observable nights 139 (90) with 67 of these nights having Moonlight interference. I made observations on 134 nights.
Total hours at the telescope 296.92 hrs (189.8)
Best month May with 24 nights (12 partially clear and 12 clear). (August 12)
Worst month February with 6 nights (5 partially clear and 1 clear) (November 4)
Birmingham Met office gave incorrect information on cloud cover for 79 nights during 2020
Total visual VS observations for 2020 is 10,717, an increase by 3,897 on 2019. CCD single measures using remote telescopes COAST, SLOOH and the AAVSO SRO-50 are 1,909 for 2020 against 1,903 for the previous year.