Location Date Time Weather Equipment:
Near Fredericton, NB, Canada - October 11, 2025 1930-2030 - Cool, no wind, hazy, 12C, and 94% humidity. Canadian Telescopes 80 ed/apo with Canon Rebel attached at prime focus. 15x70 binos, images processed with PhotoShop
Objective: To observe two comets, Comet Lemmon in the north-western sky and Comet C/2025 R2 Swan in the south-western sky just after sundown. Sometime during the week of Oct 11 to Oct 18, a few reports were made that Comet Lemmon is visible naked eye, barely.
Report For Oct 11:
- I was able to capture and view Comet Lemmon in binos as it was going down behind trees, also as it was starting to get dark enough to observe it. It was bright enough to clearly see in camera viewscreen, and was easy to find in binos. Huge, greenish, with a bright, whitish central region. A hint of a big wedge like tail was just barely visible. Not visible to naked eye, in my experience.
- No moon in the sky made for very dark skies, but hazy, high humidity.
- Searched for Comet Swan, but it had gone down behind trees by the time I was able to search for it.
- Arcturus was behind trees by the time it started getting dark.
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| Arcturus |
Report for Oct 18:
- Ed and I arrived at observing area around 7pm and the sun was down but there was still lots of light. Arcturus popped out shortly afterwards, but it took a long 30 mins for the twilight to diminish enough for comet Lemmon to appear.
- We both had nice views of Comet Lemmon through binos. Noting the big, bright nucleus with bright whitish central region and greenish outer layer. A large, thick tail sweeping to the right, aprox a degree long. Around 8pm we realized we could see the Comet naked eye! We estimate the comet to be 5th magnitude. What a beautiful sight!
- We searched the southern sky under Aquila and above Sagittarius for Comet C/2025 R2 Swan to no avail. Lots of deep sky objects, in Sagittarius, including seven globular clusters, which closely resemble comets in binos. I confirmed one such cluster with an image. We thought it was a comet while scanning for comet Swan. We were not able to confirm a sighting of this comet, even after a thorough scanning by both of us of that region with binos. This comet was reported to be mag 6.4.
- Shortly after dark, the comet became visible in binoculars. It has a bright central region, and is huge. Clearly stands out as a comet. Spectacular with tail that spanned 40% of binos field of view, Ed thought and I agree. It's a long tail that sweeps up and to the left. Tail is visible naked eye and in images there's some kind of disturbance going on with it.
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| Comet C/2025 A6 Lemmon |
- In the south, south, western sky, there was a beautifl thin crescent moon that periodically was covered by a thin band of dark clouds. The southern sky had Sagittarius hanging just over the Bay of Fundy. Comet c/2025 R2 Swan was in this region of sky but didnt show up in binos or in images of this area of sky. Many other observers from the Saint John Astronomy Club were there, making it a very enjoyable experience.
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| Sagittarius sitting low in the sky as a thin cresent moon tries to peek out from behind clouds. |
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| Setting Crescent Moon next to a transmission tower. |































