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Old 03-12-2013, 10:42 PM
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Sebbie (Sebastian)
Sebbie

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Join Date: Jul 2012
Location: Canberra, Australia
Posts: 260
Changing face of Venus: 5th Nov - 2nd Dec

Hi there

Venus is racing towards a close encounter with Earth early in the New Year (inferior conjunction on January 11). Angular size and brightness of the planet has been growing quickly over the past month, here's a couple of images illustrating these changes.

Taken in visible spectrum first is a composite of two f30 captures and the second a single f40 pic from beginning of November. Approximately 1200 best frames stacked in each case, y800 60 fps mode @ 1/3333 sec exposure. Processed in AS!2, Registax, ACDSee and Photoshop.

Unfortunately bmp to jpg format change seems to degrade overall quality somewhat (even with the lowest compression setting). I also got slight diffraction pattern artefact around the bright limb on November images.. seeing was hardly ideal on both evenings (only 10% of frames were usable).

Thanks for looking

- Seb
Attached Thumbnails
Click for full-size image (Final Anno Venus f30 5 Nov 2 Dec 2013.jpg)
161.7 KB108 views
Click for full-size image (Final Anno AS_p9_Multi_01-02-03-05 Venus f40 Colour_g4_b3_ap40.jpg)
111.6 KB77 views
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