Observation by Peter Anderson: Alpha Centauri resolution and seeing tes...

Uploaded by

Peter Anderson

Observer

Peter Anderson

Observed

2018 May 16 - 14:00

Uploaded

2018 Aug 13 - 00:46

Objects

Rigil-Kentaurus

Equipment

150mm F8 achromat refr with 3X barlow

Location

Brisbane Australia

Target name

Alpha Centauri resolution and seeing test

Title

Alpha Centauri resolution and seeing test

About this image

Alpha Centauri Double star, Distance in 2018 ~4.6". Mv 0.0 and 1.3. These are 12 images (of 30 taken) to demonstrate the effect of 'seeing' and to test the resolution and alignment of the instrument by examining the diffraction discs. Exposures (at 2000 ISO) vary somewhat in length. Images are inverted. In only a few was the atmosphere relatively steady. The upper red fringe of the atmospheric dispersion effect is very apparent in those images with longer exposure.

Files associated with this observation

Alpha Cen 17May 18 3X Barlow on 150mm F8 12 of 30 images adj.jpg (90.6 kB)

Like this image

Jeremy Shears, Andy Wilson, Peter Carson

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