Transits

The rare crossing of a planet in front of the sun. Images of planetary transits:

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Transit of Mercury 2016

Transit of Mercury; click image for higher resolution

Mercury is the small black disc crossing the sun towards the bottom of the image. Note the sunspot groups. Transits of Mercury are much more frequent that those of Venus. The next transit of Mercury will occur on 11th November 2019.

106 mm refractor operating at about 850 mm focal length. 9th May 2016 at 13.02 UT. DSLR with 4x 1/750 s exposures. Thousand Oaks Type 2+ Solar filter used. From MA, USA.


Transit of Venus 2012

Transit of Venus; click image for higher resolution Transit of Venus; click image for higher resolution

Left: Venus entering the solar disc. Time 22:23 UT. Detail from full frame. 1/250 second.

Right: Venus has now entered fully on the disc of the sun. It appears very much darker than the umbrae of the sunspots present. 1/200th of a second exposure taken at 23:03 UT.

5th June 2012 from the shores of Lake Champlain, Vermont. Taken through a 70 mm refractor (Pronto) at an effective focal length of 528mm. DSLR camera at ISO 400. Thousand Oaks Type 2+ Solar Filter used.

This was the last Transit of Venus for 105 years!


Transit of Venus 2004

Transit of Venus; click image for higher resolution

Venus is the small dark disc crossing the sun. Transits of Venus are very rare events, this was the first transit of Venus since 1882. The next one occured on 6th June 2012.

8th June 2004 from Crete. Taken through a 420 mm Telephoto Lens on Kodak Elite Chrome 100. 1/125th of a second exposure. Solar Filter used.


Transit of Mercury 2003

Transit of Mercury; click image for higher resolution

Mercury is the small dark dot crossing the sun towards the top of the image (the other spots are sunspots). Transits of Mercury are much more frequent that those of Venus. However, as the sun is frequently below the horizon from Ireland, this was the first one visible from there in nearly thirty years. The next one (that was visible from Ireland) occured on 9th May 2016.

70 mm refractor (Pronto) operating at x4 its focal length giving 1920 mm. 7th May 2003 at 07.55 UT. Fujichrome 100 slide film. Solar filter used. From Dundrum, Dublin.


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