ZiHao Posted February 7, 2021 Share Posted February 7, 2021 North is up. SW150p, ASI120MC, 2x Barlow,EQ3 Pro. 300*1s stacked on Registax. Couldn't resolve it visually when taking a brief look with 10mm plossl and 2x Barlow at around 8.30pm, perhaps I should wait for the scope to be thermally stable first, before sliding in the camera in a hurry to take images. Sirius B is clearly discernible in a 1 second frame as it gets higher. The stacked image was heavily stretched in PS to reveal the faint background stars, to correct for the offset in position angle by rotating the image. Eventually, Sirius B is measured to be 64.5 degrees from north approximately, which is a 1.8 degree offset from 66.3 degrees obtained from skysafari. The distance from Sirius to Sirius B is 13" from the image, compared to 11.2", so about 3.5 pixels off. 13 Link to comment Share on other sites More sharing options...
Roy Foreman Posted February 7, 2021 Share Posted February 7, 2021 Very well done. This is something I've been wanting to do for a long time but never got round to trying. Separating Sirius B from it's parent is no easy task. Your results have given me the kick I need to give it a go. Once again, well done ! 1 Link to comment Share on other sites More sharing options...
Knight of Clear Skies Posted February 7, 2021 Share Posted February 7, 2021 Nice work, not easy to pick anything out of Sirius' glare. 1 Link to comment Share on other sites More sharing options...
peter shah Posted February 9, 2021 Share Posted February 9, 2021 Impressive! Link to comment Share on other sites More sharing options...
callisto Posted February 9, 2021 Share Posted February 9, 2021 Nice to see this being imaged....well done Link to comment Share on other sites More sharing options...
lukebl Posted February 9, 2021 Share Posted February 9, 2021 Impressive. I've always wanted to see or capture the Pup. Not easy at 52 degrees North, but it's at its greatest elongation now so I must try again. Link to comment Share on other sites More sharing options...
CraigT82 Posted February 9, 2021 Share Posted February 9, 2021 Nice work well done! This is on my ro do list but getting the scope onto Sirius is a bit of a challenge for me. You've inspired me to try harder! Link to comment Share on other sites More sharing options...
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