Today’s Astronomical Events – August 4th, 2015

The constellation of Capricornus, the Sea Goat, reaches its best visibility for the year tonight. Rising at sunset and setting at sunrise, it’s visible throughout the entire night and can be seen over the southern horizon around 1 a.m. (or midnight, if your area is not observing summer time.)

If you have a pair of binoculars, take a look at Alpha Capricorni. You should easily be able to see two creamy coloured stars; this pair is known as an “optical” double because they only appear close to one another. In reality, they are hundreds of light years apart.

(Click on an image to enlarge. Adapted from 2015: An Astronomical Year, available in Kindle and paperback formats from Amazon in the US, Canada and the United Kingdom.)

Images courtesy of Mobile Observatory.



The constellation Capricornus (the Sea Goat) culminates tonight. (Naked eye, all night.)

The asterism M73 culminates at midnight tonight. (Magnitude 9.0. Aquarius, all night.)



Events in bold involve objects and/or events that are visible with the naked eye.

All times are in Universal Time (UTC). To convert the time to your timezone, click here.

2015 An Astronomical Year (Kindle Edition) 2016 An Astronomical Year Paperback Cover 2016 The Night Sky Sights The Astronomical Almanac 2015-2019

2015: An Astronomical Year

2016: An Astronomical Year 2016: The Night Sky Sights The Astronomical Almanac (2015-2019) The Amateur Astronomer’s Notebook (Pocket Edition)

(Kindle & Paperback)

(Kindle & Paperback) (Kindle & Paperback) (Kindle & Paperback)


Amazon – US

Amazon – US Amazon – US Amazon – US Amazon – US
Amazon – UK Amazon – UK Amazon – UK

Amazon – UK

Details of all available books across the world can be found here or by visiting the author’s page on Amazon. If you have any comments or questions, please feel free to contact me at astronomywriter “at”


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