Blue Moon – Astronomy Now

See dwarf planet Ceres at opposition on 31 January

26 January 2018 Ade Ashford

While antipodean observers are enjoying views of the totally eclipsed Blue Moon in Cancer the Crab on the night of 31 January/1 February, Northern Hemisphere observers should look out for magnitude +6.9 1 Ceres at opposition in the northern fringes of the same constellation. The dwarf planet puts on a good show in the dark of the Moon during February.

See January’s totally eclipsed Blue Moon

14 January 2018 Ade Ashford

On 31 January we experience the second full Moon of the month, which by one definition makes it a Blue Moon. However, for observers in north-western North America, Oceania, East Asia or central and eastern Russia, this full Moon will have a decidedly reddish hue since it will be immersed in the Earth’s shadow during a total lunar eclipse.

See 2018’s largest supermoon on 2 January

31 December 2017 Ade Ashford

If skies are clear in Western Europe on the first evening of 2018, be sure to glance up at the almost full Moon in the constellation of Gemini. If it seems a bit larger than usual then you’d be right, for the lunar orb is at its closest for the year, making the full Moon of 2 January a supermoon.

Once in a Blue Moon? You only have to wait until 31 July

29 July 2015 Ade Ashford

If you are waiting for that ‘Once in a Blue Moon’ opportunity to do something special or unusual, you don’t have too long to wait — according to one definition, the next arrives at 11:43am BST on Friday, 31 July!