Derby and District Astronomical Society

Cassiopeia

The Queen

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This image by Steven Chambers includes much of the region of Cassiopeia that extends towards the neighbouring constellation of Andromeda. The bright stars Shedir (Alpha Cassiopeiae) and Caph (Beta Cassiopeiae) lie at one and two o'clock from centre respectively. The Andromeda Galaxy (M31) is visible in the bottom left corner of the frame. The open star cluster NGC 7789 is visible as a dusty patch between two stars below Caph (at three o'clock from centre). The nebulosity of NGC 281 (the Pacman Nebula) can also be seen above and to the left of Shedir, forming a triangle with Shedir and Achird (Eta Cassiopeiae). The image was taken in January 2017 from Wooler, Northumberland by directly using a Canon 550d camera modified for astrophotography and un-tracked. A 150mm focal length lens was used. The image comprises 30 x 5 second exposures and 5 darks, processed in Deep Sky Stacker and Photoshop 6.  Image Copyright: Steven Chambers.




Pete Hill captured these pictures of an Iridium flare in Cassiopeia on the 19th December 2014 between 16:54 and 16:55 UT. The first image shows a wide field view of the flare as the Iridium 96 satellite passed through Cassiopeia, while the second is a close up of first. The flare was predicted to reach magnitude -8 in brightness. Pete used a Canon 450D camera with a Canon 15mm fisheye lens, ISO 400, F10, and a 35 second exposure. The camera was set up on a tripod with a remote cable release. the image was shot in RAW format and processed in PS 6. Pete also captured a 16 second video of the event using a Canon Legria FS406 on a tripod with manual focus and exposure, AWB and 25f/s, edited in Videobrowser SD. The video may be downloaded here.  Image Copyright: Pete Hill.




The Milky Way is framed by the open dome of the DDAS Flamsteed Observatory in this image taken by Chris Newsome on the 26th September 2009. The 'W' of Cassiopeia lies at the lower part of the opening while Deneb and the stars of Cygnus fill most of the upper two thirds. The Double Cluster in Perseus is also visible just below Cassiopeia. Chris used a Canon 400D camera with a 10mm super-wide angle lens at 1600ASA. The image is a single 30 second exposure.  Image Copyright: Chris Newsome.



Barry Ashforth took this picture of Cassiopeia on the 28th September 2006 at around 02:00 UT from the dark skies of North Wales.  Image Copyright: Barry Ashforth.



An Iridium 53 flare and Cassiopeia imaged by Chris Newsome on the 16th November 2005.  Image Copyright: Chris Newsome.



The following picture is a wide field view of part of Cassiopeia. Stars and deep sky objects are annotated. The image was taken by Adrian Brown on the 9th November 2005. He used one of Chris Newsome's Pentax camera lenses, a 28mm at f/4, and an ATK-16HR camera with an Astronomik hydrogen-alpha CCD filter. Adrian took 3 x 30 minute exposures which were stacked in Maxim DL. The field of view is approximately 18 degrees x 13 degrees. The two big nebulas IC 1805 and IC 1848 are visible as well as the Double Cluster towards the bottom of the image. The right of the image shows the two main constellation stars epsilon and delta Cassiopeiae and also two small open clusters M103 and NGC 663. The open cluster Stock 2 is also visible. It has been called The Muscle Man on the web and if you turn your head on one side it does almost look like a figure of a stick man flexing his muscles!  Image Copyright: Adrian Brown.



Adrian Brown took the following picture of Cassiopeia and surroundings at 22:19 UT on the 12th August 2005. It shows a Perseid meteor at lower left. He used a Canon 300D camera with an 18mm focal length lens. The exposure time was 55 seconds at ISO 400.  Image Copyright: Adrian Brown.



Chris Newsome took the following picture of Cassiopeia on the 17th July 2004 from the Society's Flamsteed Observatory. He used a Minolta digital camera.  Image Copyright: Chris Newsome.


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