The official beginning of summer here in the northern hemisphere occurs with the summer solstice on June 21 at 2:16 p.m. (AST). This is the longest day (and shortest night) of the year. Though the hours of darkness and viewing opportunities are reduced this month, there is much to see in the night sky. Last month's magnificent display of Mercury, Mars, Venus and Jupiter continues in June. But while these four planets were grouped together in the pre-dawn sky during May, they are now spread across the celestial stage from dusk to dawn. Read more
The next 30 days will be big days for sky watchers, as they will experience three eclipses: two partial solar eclipses and one total lunar eclipse.
Midnight' solar eclipse of June 2 This solar eclipse will happen this week on the night/morning of June 1 and 2 from 12:55 AM to 4:37 AM, visible in the northernmost reaches of North America, Europe, and Asia. It will not be visible from India.
Partial solar eclipse on July 1 Exactly a month later, an equally bizarre eclipse will occur in the Antarctic will occur on Friday, July 1 from 6:15 PM to 9:48 PM. It will be visible over the Indian Ocean and the Antarctic region, and will be witnessed only by penguins and sea birds.
Total lunar eclipse of June 15 Exactly halfway in between these two partial solar eclipses, a total lunar eclipse will be visible to sky-watchers on Wednesday, June 15. It will be visible for millions of people as the moon rises in the early evening in Africa, the Middle East and southwestern Asia, South America and Europe; and as the moon sets before dawn in eastern Asia and Australia.
A total lunar eclipse will be visible in India, weather permitting, in the late hours of June 15. The eclipse can be best viewed in the northernmost region of the 'entire-eclipse zone' in central Asia, as well as Eastern Europe and northeastern Africa. Read more
The warmer nights of late spring and early summer will offer us some interesting celestial highlights. The quartet of morning planets has lost one member, our first planet, Mercury, and the other three actors are drawing farther apart. Jupiter will be the highest morning planet, rising three hours before the sun by the middle of June. Then our next-door neighbour, Mars, is next, nicely located right between the Pleiades and Hyades star clusters in Taurus. Last will be brilliant Venus, situated very low on the east-northeastern horizon just half an hour before sunrise. Mercury will reappear in the evening sky right next to Castor and Pollux in Gemini by the end of June. Read more
A total lunar eclipse will take place on June 15, 2011. It is a relatively rare central eclipse where the moon passes in front of the center of the Earth's shadow. It will be visible completely over Africa, and Central Asia, visible rising over South America, western Africa, and Europe, and setting over eastern Asia. In western Asia, Australia and the Philippines, the lunar eclipse will be visible just before sunrise. Read more
At this time of year as the nights continue to get shorter and warmer, many people get in to the spirit of Summer: barbecues, watching sunsets and taking advantage of longer periods of natural light for outdoor activities (and work). When darkness eventually falls they tend to notice the stars, the Moon and maybe the planets in the darkening twilight. And, because it is not as cold, they will stay out to look up for longer. For 'real' amateur Astronomers, this time of year is not always good. Read more