|Help and Advice|
|Transit of Mercury 2016|
|Giving long exposures on a digital camera|
|Photographing star trails|
|Predicting the ISS and other satellites|
|Using a mirror to view a partial eclipse|
|Simple Guide to Viewing the Space Station|
|Choosing a Telescope|
|Tips when projecting the Sun|
|Starting to Use Your Telescope|
|Imaging with a DSLR through the telescope|
|Buying a telescope for a child|
|Photographing a partial eclipse|
Here are predictions for eclipses that are reasonably favourable from the UK during June, July and August:
Times are in UT (same as GMT, 1 hour behind BST - so, for example, 22.5h UT is 23.5h 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 primary eclipses. Eclipses are not quite total, so there is no spell of constant brightness at mid eclipse.
Eclipses last for approx 9 hours. The times shown below are for the primary eclipse mid-point. Eclipses are total, so there is a period of constant brightness around the middle of the eclipse. By August, mid eclipse is occurring during the evening twilight from the UK and so only the brightening from eclipse will be observable
U Coronae Borealis
Corona Borealis is now quite well placed in the evening sky ... but ... the nights are now too short for the whole eclipse to be observable in one session!
Eclipses last for approx 12 hours. The times shown below are for the primary eclipse mid-point. Eclipses are not total, so there is no spell of constant brightness around the middle of the eclipse.
Beta Lyrae is now wll placed for observation throughout the night.
Both the deeper primary eclipse and less deep secondary eclipse can be followed visually. There is no period of constant brightness between eclipses.
|August 31-Sep 1||primary|
Beta Persei (Algol)
Eclipses last for approx 10 hours. The times shown below are for the primary eclipse mid-point. Eclipses are only partial, so there is no period of constant brightness around the middle of the eclipse.
Although Algol is (just) circumpolar from the UK, it will be too low in the sky during late spring and early summer nights for accurate brightness estimates to be made.
Added by: Tracie Heywood