What can you
expect to see at the Community Observatory this weekend?
This won’t be the greatest weekend
to visit the observatory. Friday looks very cloudy with high humidity. Humidity
fogs up the mirrors and lenses on our scopes. Saturday looks a bit better.
Another issue is that the just-passed full Super Beaver Moon will still be very
bright affecting our seeing.
The Moon appears exceptionally
bright when it is at its closest point to Earth in its orbit, making it
approximately 14% larger and up to 30% brighter than usual. It rises at sunset
and sets at sunrise, and its proximity to the horizon creates an optical
illusion that enhances its size and brightness. This position also increases
the Moon’s gravitational pull on Earth, resulting in higher tides known as
“king tides,” which can cause significant issues in coastal areas, especially
during storms.
The two comets should still be
visible but they will not be very bright. Rumors of them becoming naked-eye
visible seem to not be becoming a reality. Comet C/2025 A6 (Lemmon) will be the
best but will only be visible for a short time after sunset. Comet C/2025 R2
(SWAN) is much further away and its tail is not impressive even in our bigger
scopes.
You have heard a lot of
information about Comet 3I/ATLAS. The “I” designation was assigned because the
speed of the object tells us that it originated outside of our solar system. The
“3” indicates that it is only the third such object we have observed. It is speeding
through and will eventually pass out of our system. Don’t believe the hype
about it being on a collision course with Earth or being an alien spaceship. It
is currently about two hundred million miles from us and is at about 15th
magnitude making it all but invisible to all but the biggest telescopes.
Saturn and the Moon will be great
objects this weekend. The Andromeda Galaxy and the Pleiades star cluster will
be bright enough to still be impressive. Our big scopes will be able to give
some good views of deep sky objects as well. Today’s Image is the Pleiades star
cluster taken from my home last week.
Join us either Friday or Saturday
between 7:30 and 9:30. Weather MAY BE AN ISSUE this weekend so you should still
check communityobservatory.com after 3 PM on the day you want to attend to be
sure we will be open. Come prepared to pay the college for parking.

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