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Posts by
Bruce McClure
Intriguing cycle of close and far moons
This post explains lunar perigee - the moon's closest point to Earth - and includes dates of all closest and farthest moons for each month of 2015.
September 27, 2015
Super Blood Moon eclipse on September 28, 2015
When and how to watch the September 27-28, 2015 total eclipse of the moon.
September 27, 2015
Dates of sun’s entry into each zodiac constellation
Dates of sun's entry into each zodiacal constellation and the corresponding ecliptic longitude (sun's position in degrees, east of the March equinox point).
August 10, 2015
Blue Moon of July 2015 and future Blue Moons
Want to know the dates of Blue Moons - second full moons within a single calendar month - for the years ahead? Click here.
July 2, 2015
First of two July full moons on July 1
The first of two July 2015 full moons comes tonight. The second July full moon - aka a Blue Moon - will come on July 31.
July 1, 2015
Total eclipse of the moon on April 4!
Western North America will see the total eclipse before dawn April 4. Eastern Asia, Indonesia, New Zealand and Australia see it on the evening of April 4.
April 4, 2015
In 2015, first of six supermoons comes on January 20
The first supermoon of 2015 comes on January 20. It's not a full moon. It's a new supermoon, between the Earth and sun. So you won't see it, but those along coasts might experience higher-than-usual tides in the coming day or two.
March 8, 2015
How often does a solar eclipse happen on the March equinox?
A total solar eclipse happened on the day of the March equinox in 2015. When is the next one after this, and how often do we get an equinox-eclipse?
March 7, 2015
How often do we have a Blue Moon?
How often do we have a Blue Moon in July? For the answer, you have to look to a concept from astronomy and calendar studies, at what's called the Metonic cycle.
January 31, 2015
Blue Moon – second July full moon – on July 31
This July 31 full moon counts as extra special because it's a Blue Moon - the second of two full moons to occur in a single calendar month.
January 30, 2015
