Derby and District Astronomical Society



The Sun in 2023

[Gallery]



This image was taken by Chris Callaway on the 15th October 2023 using a Coronado 90 and ZWO 178MC camera. The image uses the best 120 frames out of a total of 600 frames.  Image Credit: Chris Callaway.



Pete Hill took the following three images of the Sun on the 4th September 2023. Pete used a Coronado PST solar scope mounted on an HEQ5 Pro mount tracking at the solar rate. He took the images using a DMK41 mono CCD camera, and processed the best 500 of 1000 frames in Autostakkert. He also used wavelets in Registax 6, and colouration and final tweaks in Photoshop CS6. The first image shows the full disk with prominences, while the second and third show the right hand side and centre of the disk respectively, and used x2 Barlow.   Images Credit: Pete Hill.



This image was taken by Chris Callaway on the 10th August 2023 using a Coronado 90 and ZWO 178MC camera.   Image Credit: Chris Callaway.


The following solar images were taken and processed by Chris Callaway on the 9th August 2023. Equipment was a Coronado Solarmax 90 and ZWO ASI178MC. The images were processed using ASI Video Stack, ImPPG, Astra Image and Photoshop. The second image has inverted colours, to bring out the detail of the solar prominences.   Images Credit: Chris Callaway.



This image of our Sun was captured by Peter Branson on the afternoon of the 7th July 2023. The camera used was a ZWO ASI533 cooled colour camera together with a TS Optics Photoline f7 telescope with a standard solar filter covering the objective lens. A video of approximately 500 images was taken, adjusting gain and timing to ensure a good quality image and imported into Autostakkert. The best 200 images formed the final image which was then sharpened, for clarity, in PixInsight.   Image Credit: Peter Branson.



Pete Hill captured the following images of the Sun in various wavelengths on the 3rd June 2023. The setup comprised a Coronado PST telescope piggy backed on a Skywatcher ST102 refractor, in turn mounted on an HEQ5 Pro mount tracking at the solar rate. All images were taken using an Imaging Source DMK41 mono CCD camera. In each case 1000 frame video capture was taken, then Auto-Stakkert employed to stack the best 500 frames. The wavelets function in Registax 6 was used and then final processing and colourising was done in Photoshop CS6.   Images Credit: Pete Hill.

Firstly, these visible light images used the ST102 with a Herschel wedge and Baader continuum filter. The full disc image employed a 0.5x focal reducer with a C-thread attached to the camera, while a 2x Barlow was used for the closeup of sunspot group AR3323, and the single sunspot 3321.


Next, the Coronado PST was used to take the following couple of images in H-Alpha. A 2x Barlow was used for the closeup.


Finally, these Ca K images were taken using the ST102 with a Herschel wedge and a Baader Ca K line filter. A 0.5x focal reducer was used for the full disk image, while a 2x Barlow was employed for the closeup.


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