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| North-western sky on Tuesday, September 17 as seen from Adelaide at 19:35 ACST (90 minutes after sundown, click on to embiggen). Comet C/2025 R2 (Swan) is simply above Mars. The inset is the approximate binocular view of the comet on the time. | North-western sky on Saturday, September 20 as seen from Adelaide at 19:35 ACST (90 minutes after sundown, click on to embiggen). Comet C/2025 R2 (Swan) is simply above Mars. The inset is the approximate binocular view of the comet on the time. | North-western sky on Tuesday, September 17 as seen from Adelaide at 19:35 ACST (90 minutes after sundown, click on to embiggen). The observe of the comet over successive nights is proven (ignore the magnitudes, the comet is round magnitude 7). |
Comet C/2025 R2 (Swan) is (very) just lately found comet that’s round magnitude 7 (binoculars solely), however it’s nicely positioned close to some very brilliant information stars so it is going to be simple to search out (particularly Mars and Spica this week). it’s at present a dim dot in 10×50 binoculars. It is going to brighten a bit because it climbs larger into the darker skies, however won’t actually attain visible magnitude.
For this week it’s comparatively low above the horizon, and units an hour after astronomical twilight, so you might have a slim window to watch. https://www.aerith.net/comet/catalog/2025R2/2025R2.html see additionally https://www.minorplanetcenter.net/mpec/K25/K25RA2.html for an ephemeris.
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| Black and White printable chart of the western sky beginning Tuesday, September 17 as seen from Adelaide at 19:35 ACST (90 minutes after sundown, click on to embiggen and print). The observe of the comet over successive nights is proven (ignore the magnitudes, the comet is round magnitude 7). | Black and White printable chart appropriate for binoculars of the comet for September 17 to September 23. (90 minutes after sundown, click on to embiggen and print). Use together with the spotters chart. | Black and White printable chart appropriate for binoculars of the comet for September 23 to September 30.(90 minutes after sundown, click on to embiggen and print). Use together with the spotter chart. |
Labels: binocular, C/2025 R2, comet
