Tag: Cassegrain focus

M 33 (Whirlpool/Triangulum Galaxy)

The triangulum galaxy was a first try with some longer post-processing. Particularily I had some issues with gradients wich complicated my life severely 😛 [tableT caption=”Object details”] Center (RA):, 01h 33m 51.302s Center (Dec):, +30° 39′ 04.014″ Apparent size:, 36.5 x 36.5 arcmin Pixel scale:, 0.54 arcsec/pixel Orientation:, Up is -100 degrees E of N …

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First try at a mosaic: Veil Nebula

A first test to make a mosaic in Pixinsight. Not too bad, being this a 2-panel mosaic of Luminance images – made up of just a few exposures. [table caption=”Image data”] Target, NGC 6992 (mosaic) Date, 18 July; 2 and 15 August 2014 Images, Luminance; two panels Optics, Cassegrain f/9 20″ @3550mm Mount:, ASA DDM85XL …

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NGC 6992 (Veil Nebula)

After a longer wait for good weather I was finally able to do a decent stack of very few images of the Veil nebula. Among the images we had the first 10 minute-long subexposures! [table caption=”Object details”] Center (RA):, 20h 56m 22.617s Center (Dec):, +31° 42′ 49.464″ Apparent size:, 36.5 x 36.5 arcmin Pixel scale:, …

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