The Creamy Coloured Stars of Capricornus


Alpha Capricorni

Alpha Capricorni

While it’s all quiet on the lunar and planetary fronts, it’s a good time to return to the stars above us. A few nights back, we stopped and stared at the constellation of Capricornus, now appearing over the southern horizon at about 10 p.m.

If, like me, you’re a fan of double stars, you’ll want to take a look at Alpha Capricorni, the brightest member of the constellation. It’s an easy double – keen sighted observers may even be able to split the pair with just their eyes – and the stars make for a nice sight through both binoculars and small telescopes at low power.

The pair are almost equal in brightness and have always appeared a creamy colour to my eyes. However, the colours you see can depend upon your own eyesight, the equipment you’re using and the quality of the skies above you. Even if you have binoculars or a telescope, leave them inside tonight. Take the challenge, stop and stare, split the stars with just your eyes and compare the colours for yourself.


All Astronomical Events for September 12th 2015

05:36 UT – The almost new Moon passes Jupiter. (Jupiter: magnitude -1.7, diameter 30.9”. Leo, not visible.)


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.

Astronomical events taken from 2015: An Astronomical Year, available in Kindle and paperback formats from Amazon in the USCanada and the United Kingdom. Sky simulations created using the Mobile Observatory app for Android devices. Alpha Capricorni image courtesy of WikiSky.

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

2015: An Astronomical Year

2016: An Astronomical Year 2016: The Night Sky Sights The Astronomical Almanac (2016-2020) 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

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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