Mercury, Mars and Jupiter - in dawn skies now

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starfinder
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Mercury, Mars and Jupiter - in dawn skies now

Post by starfinder »

Jupiter and Mars are back! They have both rounded the Sun (from our point of view) post-Conjunction, and are now visible in our pre-dawn skies in the east. So the 2013 season has begun.

Mercury too is now visible in the east at dawn, with maximum western elongation due to take place in just two days' time on 30 July 2013.

I viewed these 3 planets this morning from home with my LX-90 8" SCT. Good views!

I also took the following wide-field image using a 70-300mm Canon lens at 70mm and a Canon EOS 60D; the 3 planets are visible in the same frame. The close-up images of the 3 planets were taken at the same time at prime-focus with the LX-90 and the dSLR with just one-shot each; this shows all 3 planets at the same scale; however, the brightness adjustments of each were done differently.

Here are some data for the planets, on Sun 28 July 2013 at 6:45am local time:
Mercury: Diameter 8.2"; Mag +0.6; Phase 38%
Mars: Diameter 3.9", Mag +1.6; Phase 91%
Jupiter: Diameter 32.8", Mag -1.9; Phase 97%

Apparent distances: Jupiter to Mars: 2 deg 40 arcmin; Mars to Mercury: 6 deg 58 armin

Elevations (above local horizon):
Jupiter: 21 deg 54 arcmin
Mars: 19 deg 14 arcmin;
Mercury: 13 deg 48 armin


Click this link for a full-sized image:
http://img15.picoodle.com/i57s/starfind ... _u8s7b.jpg

Image
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