Caldwell 5
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Kevin Phillips
Feb 7, 2025, 2:24:23 PMFeb 7
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Caldwell 5 or c5 is known as the hidden galaxy. It's not an easy subject to capture. It's pretty close ti the Milkyway, it explains why so many stars.
120 frames stacked in dss and process in startools and photoshop.
Heq5 mount.
F/7 horizon duplet refractor
Zwoasi294 colour camera
L pro filter.
Guided. Phd2
Sharpcap pro.
It was pretty good night.
William Bottaci
Apr 3, 2025, 2:57:22 PMApr 3
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Hello Kevin, a not bad image at all, with the small stars showing good focus and guiding.
Your f/7 Horizon telescope is a 4-inch, Sharpcap Pro used to capture the images, PHD2 for guiding, Optolong L Pro filter is mostly for light pollution and lets the nebulae light through, DSS to stack and reduce image noise.
It looks like you've caught another galaxy; bottom left, about the distance away of the diameter of C5 as you show it, looks like a blurry slightly oval shaped star; it's PGC 13693 (UGC 2826), mag 14.8, 40 lys away.
And maybe one more much smaller galaxy, top right corner and inboard a little right along the top edge. It looks red, is that due to the redshift of it being so far away? :). The bright star very close to it is HD 23818, mag 7.5. I can't identify this 'galaxy' right now, I'll try later.
Thank you for sharing (and your image is almost exactly upside down :).
William
Your f/7 Horizon telescope is a 4-inch, Sharpcap Pro used to capture the images, PHD2 for guiding, Optolong L Pro filter is mostly for light pollution and lets the nebulae light through, DSS to stack and reduce image noise.
It looks like you've caught another galaxy; bottom left, about the distance away of the diameter of C5 as you show it, looks like a blurry slightly oval shaped star; it's PGC 13693 (UGC 2826), mag 14.8, 40 lys away.
And maybe one more much smaller galaxy, top right corner and inboard a little right along the top edge. It looks red, is that due to the redshift of it being so far away? :). The bright star very close to it is HD 23818, mag 7.5. I can't identify this 'galaxy' right now, I'll try later.
Thank you for sharing (and your image is almost exactly upside down :).
William
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