Let’s come out and see if Betelgeuse blows up for us tonight!
This is one of those frustrating mornings when the several different weather forecasts that I check disagree with each other. All agree the sky will be half cloudy, half clear at sunset. Some predict the clouds will increase through the night, but some predict the sky will be 100% clear by 8pm.
We’ve had bad weather for the past two star party dates, so let’s take a chance and see if we can observe some nice winter sights tonight. The temperature will be mild (40s), so it won’t be a big challenge to stay warm. The dewpoint will be very close to the temperature, so expect lots of
dew and come prepared to manage it on your instruments. (The last two nights have been so dewy that in the mornings I’ve asked myself if it rained overnight.) Rain is likely before dawn, so you won’t want to be out all night.
Sunset will be 4:53pm, and astronomical twilight will end at 6:30 pm, this evening.
(About Betelgeuse – it is a variable star, but its brightness has dimmed much more than it usually does. The star has gone from 6th brightest in the sky to 21st brightest. If you like to do photometry, Betelgeuse is a great target for that right now. It is still very unlikely to go supernova in our lifetimes. But we can hope.)
It’s a beautiful day this morning, but all the forecasts say it will rain by sunset. And even if it doesn’t rain, the sky is predicted to be completely overcast. Sorry, but we won’t be able to observe anything tonight. …Continue reading →
This quarter’s newsletter begins with an article by Lauren Lennon introducing us to the ancient Native American observatory in Newark, Ohio–a remarkable site probably more familiar to archaeologists than to astronomers. We also have articles on the transformation of the Mark Slade Remote Observatory to a nonprofit, reports on recent club events, and Jerry Hubbell’s quarterly Moon article, along with our other continuing features. Just click the newspaper icon at the upper right of this page to read all about it!
Tonight’s planned star party, Friday October 25 2019 at Caledon, is cancelled. All the weather forecasts say mostly overcast tonight. I expect we won’t be able to see anything through the clouds. I’ll see you in November. We usually have …Continue reading →
This is not a Rappahannock Astronomy Club event, but an event by a larger, state-wide association of clubs like ours. Saturday October 5 2019, with afternoon events including a tour of the Udvar-Hazey Center (the bigger, western branch of the …Continue reading →