The telescope library is an amazing resource for RCA members. To find out more information about the library click right here!

Library will be closed for checking out items in January

This if for annual maintenance and upkeep, plus work on our database

We always need new volunteers! Without the club’s members giving their time and energy, there will be no library. Contact the library to see how you can help

Whether you're a beginner, intermediate or advanced astro-imager — whether you're using a CMOS, DSLR, point-and-shoot or smartphone — this Astro Imaging group can help you achieve better images with less effort and frustrations.

New members are welcome to meet at 6:30 PM before the General Meeting for an orientation and introduction to Rose City Astronomers.

If you have questions about the club or things you'd like to discuss with other newer members, bring those with you!

Dr Chelsea Sharon has been exploring one of these discrepancies associated with the influences that supermassive black holes have on their host galaxies. She will help us understand the problem and share what she's learned about it so far.

The Standard Model of Cosmology (Lambda-CDM, i.e. the cosmological constant, Lambda, together with cold dark matter, CDM) fits many observations well. But there is a fair number of observations that don't match its predictions. These discrepancies might indicate that we don't understand the astrophysics of the associated phenomena well enough to make appropriate predictions. Alternatively, each false prediction also points to a potential weakness in the overall model. In particular, a large number of recent observations of the early Universe have been difficult to interpret using the models and astrophysical understanding that we developed by studying the older, closer Universe.

The Women's Astronomy Special Interest Group focuses on Community, Learning & Mentorship with Monthly Meetings and Events.

An email blast with event information will be sent out to members.

We have a new SIG that is forming for radio astronomy. If you want to try your hand at radio astronomy, or just learn a little more about this facet of astronomy then you are welcome to attend our SIG meetings. Mike Caba and Matt Vartanian will co-host this SIG virtually on the fourth Thursday of every month.

If you need help with a telescope project, need to clean or align your optics, repair or replace part of your telescope, or just want to talk about telescopes, come to the next Telescope Workshop. Subjects include telescope building from scratch or a kit, telescope setup, cleaning, aligning, adjustment, repair, and help using your telescope.

Whether you're a beginner, intermediate or advanced astro-imager — whether you're using a CCD, DSLR, point-and-shoot or film camera — this group can help you achieve better images with less effort and frustrations.

 Join us at noon on the first Fridays of every month for good conversation and good food! All members are welcome!

𝐇𝐚𝐯𝐞 𝐲𝐨𝐮 𝐫𝐞𝐠𝐢𝐬𝐭𝐞𝐫𝐞𝐝 𝐲𝐞𝐭? If you’re an RCA member, you’ll find the event details and registration link in your email inbox. Space in the universe might be infinite, but space for Downtowners is limited to 20 attendees, so sign up early!

Whether you're a beginner, intermediate or advanced astro-imager — whether you're using a CMOS, DSLR, point-and-shoot or smartphone — this Astro Imaging group can help you achieve better images with less effort and frustrations.