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|Photographing a partial eclipse|
Here are predictions for eclipses that are reasonably favourable from the UK during July, August and September:
Times are in UT (same as GMT, 1 hour behind BST - so, for example, 21.5h UT is 22.5h BST )
Eclipses last 4.8h, with most of the brightness changes taking place during the middle 3 hours. The times shown below are for the mid-point of the eclipses
July: 4d 22.0h , 6d 2.7h , 10d 21.5h , 12d 2.2h , 18d 1.6h , 24d 1.0h , 30d 0.5h.
Aug: 4d 23.9h , 10d 23.3h , 16d 22.7h , 18d 3.4h , 22d 22.2h , 24d 2.9h , 28d 21.6h , 30d 2.3h.
Sep: 3d 21.0h , 5d 1.7h , 9d 20.5h , 11d 1.1h , 17d 0.6h , 23d 0.0h , 28d 23.4h , 30d 4.1h.
Eclipses last for approx 9 hours. The times shown below are for the eclipse mid-point. Eclipses are total, so there is a period of constant brightness around the middle of the eclipse.
July 5d 23.3h , 10d 23.0h , 15d 22.7h , 20d 22.3h , 25d 22.0h , 30d 21.7h
Aug: 4d 21.3h , 9d 21.0h , 14d 20.7h , 19d 20.3h , 24d 20.0h.
Sep: none during hours of UK darkness
U Coronae Borealis
Eclipses last for approx 12 hours. The times shown below are for the eclipse mid-point.
July: 18d 3.0h , 25d 0.7h , 31d 22.5h.
Aug 7d 20.1h , 18 d 4.6h , 25d 2.4h.
Sep: 1d 0.1h , 7d 21.8h , 14d 19.5h , 25d 4.1h.
Both the deeper primary eclipse and less deep secondary eclipse can be followed visually. There is no period of constant brightness between eclipses.
Primary: July 12-14 , 25-27, Aug 7-9 , 20-22 , Sep 2-4 , 15-17 , 28-30.
Secondary: July 6-7 , 19-20 , Aug 1-2 , 14-15 , 27-28 , Sep 8-9 , 21-22.
beta Persei (Algol)
Eclipses last for approx 10 hours. The times shown below are for the eclipse mid-point. Eclipses are total, so there is a period of constant brightness around the middle of the eclipse.
July: 23d 1.7h.
Aug: 12d 3.4h , 15d 0.2h , 17d 21.0h.
Sep: 4d 1.9h , 6d 22.7h , 9d 19.5h , 24d 3.6h , 27d 0.9h , 29d 21.2h
Added by: Tracie Heywood