https://www.sciencedowneast.com/zenphoto Sat, 08 Aug 2026 06:27:09 -0300 Sat, 08 Aug 2026 06:27:09 -0300 http://blogs.law.harvard.edu/tech/rss Zenphoto RSS Generator https://www.sciencedowneast.com/zenphoto/index.php?album=Comets/Comet-C2025-R2-SWAN&image=comet+Swan.jpg Click on the image to view it at full resolution, then click again for actual size.

Comet C/2025 R2 (SWAN) is a long-period comet first spotted on September 11, 2025 by amateur astronomer Vladimir Bezugly in publicly available images from the SWAN (Solar Wind Anisotropies) instrument aboard the SOHO spacecraft, before receiving an official designation from the IAU. It was already unusually bright (magnitude ~7.3) with a well-developed tail at the time of discovery, just hours from perihelion. Its orbit suggests a period of roughly 22,500 years, meaning this is likely its only visit to the inner solar system in recorded history.

[Source: Wikipedia, en.wikipedia.org/wiki/C/2025_R2_(SWAN); NASA APOD, apod.nasa.gov/apod/ap250918.html]

Total image time was 3 minutes.

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Filter	Triad Quad
Binning	1x1
Date	2025-10-25
PixInsight Processing	Image Integration (x5) Dynamic Crop BlurXTerminator (AI deconvolution) Generalized Hyperbolic Stretch (x2)

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Comets/Comet-C2025-R2-SWAN&image=comet+Swan.jpg Sat, 25 Oct 2025 00:00:00 -0300