October 25, 2020
October 1, 2020
I didn't know about this button on the sky until I turned the camera on it late one night. The moon was 72% waxing, and I needed a fairly bright target.
This image is 16x10' with the Atik 460EXC through a 203mm f/4.95 Synta-ONTC Newtonian and an Astronomik CLS filter.
NGC 457 is one of my favorite open clusters. Through a telescope, it is stunning, partly because of the contrast between the brighter stars and the dimmer diamonds. This image is 19x300" with the Atik 460EXC through the 203mm f/4.95 Synta-ONTC Newtonian and an Astronomik CLS filter.
September 16, 2020
September 15, 2020
These three galaxies appear in the constellation Grus (the crane). They are, from upper left to lower right, NGC 7582, 7590, and 7599. The trio and one other companion, NGC 7552 (off the top of this frame), lie about 60 million light years distant. The quartet is gravitationally interactive, and these three show tidal effects from each other's pull. https://www.aanda.org/articles/aa/pdf/2005/01/aagi011.pdf. One tidal tail stretches almost all the way from NGC 7582 to NGC 7590, but the tail is too dim and the wrong part of the spectrum to appear in this image.
August 23, 2020
August 22, 2020
This dark cloud floats in front of a field of glowing hydrogen (red).
This is 31x900" through the Synta-ONTC 203mm f/4.95 Newtonian and an Astronomik CLS filter with the Atik 460EXC.