Ares and Antares - a photo on Flickriver

Ares and Antares

            The two bright, orange "stars" in this image are the planet Mars (right) and the star Antares (Alpha Scorpii). The Roman god Mars was known as Ares to the Greek. Antares is a Greek name, meaning "counterpart of Ares"  (Anti-Ares), as the star appears to the eye very similar to the planet, having a nearly the same brightness and color.

In reality, Mars is a compareably small planet (with about half the diameter of the Earth), whereas Antares is a red supergiant star: If one would put Antares in the center of our solar system, the orbits of the planets Mercury, Venus, Earth and Mars would lie inside the star!

Single 30 second exposure, taken with a Canon EOS 550D at ISO 800, 33mm, f/3.5, Cokin P830 diffusor, tracked with the Vixen Polarie star tracker. A patch of the Milky Way is seen at far left, including the pinkish Lagoon Nebula (Messier 8).

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Taken in: Österreich / Oberösterreich / Piberbach (show map)

Taken on: September 17, 2014

Tags:

Astronomy

Night

Stars

Antares

Alpha Scorpii

Planet

Mars

Canon EOS 550D

Tamron SP AF 17-50mm f/2.8

Cokin P830

Vixen Polarie

Milky Way

Scorpius « less

Sets appears in: • Landscape Astrophotography

Groups appears in: • Night Images • canon photography more » • Night Lights • Austrian flickrs • Night Photography • Nightscapes - Natural Landscapes at Night • After Dark - Night Photography • Astronomy • FlickrToday (only 1 pic per day) • Nature Photography • Constellations • No-Flash Night Shots • Night Sky, The • Night Time and Low Light • Amateur Astronomy • Tamron 17-50 • Very Long Exposure (30 seconds or more) • Astro-Photography and Similars • Astronomy, Stars, Planets and Space • [Noctography] • Night and darkness • Night shooters • The World at Night • Landscape Astrophotography • The Vanishing Night ( A Light Pollution Group) • Sky @ Night • canon eos 550 d • Astronomy Photos • Astronomers Talk • flickr (unofficial) • Vixen Polarie - Astrophotography • Into the Night Photography • Stunning Skies « less

Camera: Canon EOS 550D, f/3.5, 30 sec, 33mm, ISO 800 (more info) (hide info)

Camera:	Canon EOS 550D
Lens:	17-50mm
Aperture:	f/3.5
Exposure Time:	30
Focal Length:	33mm
ISO:	800
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Multi-segment
White Balance:	Manual
Color Space:	sRGB
Software:	Adobe Photoshop CS5.1 Windows
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