Derby and District Astronomical Society
Caldwell 30 (NGC 7331)
Spiral galaxy in Pegasus
RA 22h 37m 06s Dec +34° 25' 00"
| This image of NGC 7331 was captured by Peter Branson on August 12th 2025 and produced from a 2 hour imaging session (123 x 60s images). These images were captured using a new ZWO ASI585MC colour camera attached to a Celestron C9.25 Schmitt-Cassegrain telescope, mounted on a SkyWatcher NEQ6 mount. The set of images was stacked in Nebulosity and imported into PixInsight for further processing and sharpening. The supernova is clearly seen to the right of the galaxy core. Peter had previously imaged this galaxy in October 2015 (see the second image). Image Credit: Peter Branson. |
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| This image of NGC 7331 was produced by Chris Callaway from data collected on the 3rd August 2025. Chris used a Takahashi 106 on a Paramount MyT mount and an Atik 16200 camera. A total of 20 x 2 minute luminance subs were used for the final image, and the the mount was unguided. Supernova SN 2025rbs is visible in the core. Image Credit: Chris Callaway. |
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| This image of Caldwell 30 (NGC 7331) was captured on the 3rd August 2025 by Dave Selfe using a Seestar S50 telescope. The image comprises a stack of 10 second subs totalling 15 minutes of exposure. Like Adrian Bancroft's image a few days earlier (see below this post), supernova 2025rbs is just visible as a white dot against the top edge of the nucleus of the galaxy - but you will have to zoom right in to see it! Image Credit: Dave Selfe. |
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| Adrian Bancroft took this image of Caldwell 30 (NGC 7331) on the 26th July 2025 using a Seestar S50 telescope. Supernova 2025rbs is just visible as a white dot against the top edge of the nucleus, or brightest part, of the galaxy, as more clearly seen in the close up shown below the main image. Image Credit: Adrian Bancroft. |
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| This image of Caldwell 30 (NGC 7331), the brightest member of the Deer Lick Group of galaxies, was taken by Mike Lancaster on the 10th October 2023. The image comprises 16 x 4 minute exposures taken using an Altair Hypercam 26C at 300 gain (plus darks, flats and flat darks), through an Orion Optics UK AG12 Astrograph mounted on an EQ8 mount. A 0.95x Wynne Corrector and Astronomik CLS-CCD filter were also employed. This setup was guided using PHD2 and an SXV Lodestar camera attached to an ST-80. Images were acquired using SharpCap, and the processing was entirely performed in PixInsight. Other members of the group are visible, as are some other faint galaxies in the field of view. Mike comments: "I would have liked to take more data, but the good old British weather had other ideas!" Image Credit: Mike Lancaster. |
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| Adrian Brown took this image of spiral galaxy Caldwell 30 (NGC 7331) in October 2006. Adrian comments: "It's a bit small for my 3-inch refractor but some interesting dust lane detail was captured in the galaxy as well as numerous fainter galaxies, dotted around the image. Also, in the bottom left of the image, the galaxy cluster Stephan's Quintet has been captured". Adrian used an 80ED refractor and an ATK16HR CCD camera. Exposures details are 13 x 5 minutes through an Astronomik CLS filter and an Astronomik Clear filter (which cuts out the infra-red). Raw exposures were stacked in Maxim DL and processed in Photoshop with levels and curves. Also, a high pass filter in Photoshop was used to bring out the detail in the galaxy. Image Credit: Adrian Brown. |
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