York County Astronomical Society (YCAS)

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York County Astronomical Society (YCAS) Formed in 1989, the non-profit York County Astronomical Society aims to promote interest, public education in astronomy.

Four members of the York County Astronomical Society (YCAS)—Don, Ken, Adam, and Julie—came together over multiple nights...
09/10/2026

Four members of the York County Astronomical Society (YCAS)—Don, Ken, Adam, and Julie—came together over multiple nights to image NGC 2237, the Rosette Nebula. Total composition time is about 58 hours.

Using four different imaging setups, we combined Hα, OIII, and SII data into one collaborative image, demonstrating how different telescopes, cameras, and techniques can complement each other.

Each contributor could process the data in their own method, creating an individual final image using the collected data over the four setups.

Visit https://www.astroyork.com/gallery/ for a more detailed writeup of the equipment used.

*Photo Credit (Don, Ken and Adam)

On Saturday, April 18 , The York Learning Center Planetarium will feature 'Forward! To The Moon' movie about the Artemis...
04/16/2026

On Saturday, April 18 , The York Learning Center Planetarium will feature 'Forward! To The Moon' movie about the Artemis mission and features Victor Glover who piloted the Artemis II mission this month.

Address

301 East Sixth Avenue
York, PA
17404

Telephone

717 759 YCAS (9227)

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