The alignment isn't perfect but the stars that move do so contra to others nearby so must be real. The image with the spikes on the big star (Alcyone) is from 1962 overlaying my image from 2019 with a 50% transparency. Play it full screen and take a look at the stars at the top, left of centre. Look closely and you'll see others that also seem to have moved.
Monday 4 February 2019
Pleiades 1962 to 2019
A few weeks ago a friend gave me a book on astronomy published in 1962, in it was an image of the Pleiades. Luckily it was of a similar scale to my images, so as an experiment I overlayed and aligned one of my images with a scan from the book and it shows some stars that have moved in the intervening 57 years.
The alignment isn't perfect but the stars that move do so contra to others nearby so must be real. The image with the spikes on the big star (Alcyone) is from 1962 overlaying my image from 2019 with a 50% transparency. Play it full screen and take a look at the stars at the top, left of centre. Look closely and you'll see others that also seem to have moved.
The alignment isn't perfect but the stars that move do so contra to others nearby so must be real. The image with the spikes on the big star (Alcyone) is from 1962 overlaying my image from 2019 with a 50% transparency. Play it full screen and take a look at the stars at the top, left of centre. Look closely and you'll see others that also seem to have moved.
Sunday 3 February 2019
Latest Pleiades
The latest image of the Pleiades. There's a bit more detail and colour graduation in the nebulosity than in previous images.
Scope: Sky Watcher ED80 DS Pro
Mount: Sky Watcher CG4 motorised with modified controller for guiding.
Camera: Altair Astro Hypercam 183C
Guide cam: QHY 5L-II-C
Guide software: PHD2
25 x 5min Light
24 x 5 Min Dark
24 Flats
Stacked in DSS, processed in Photoshop Elements and GIMP.
Scope: Sky Watcher ED80 DS Pro
Mount: Sky Watcher CG4 motorised with modified controller for guiding.
Camera: Altair Astro Hypercam 183C
Guide cam: QHY 5L-II-C
Guide software: PHD2
25 x 5min Light
24 x 5 Min Dark
24 Flats
Stacked in DSS, processed in Photoshop Elements and GIMP.
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