As a kid in San Francisco in the 1960s, one of my favorite things was the old California Academy of Sciences in Golden Gate Park, in particular, the Morrison Planetarium.
Recently I came across a 1952 issue of Pacific Discovery, the journal of the Academy, this issue was entirely dedicated to the construction of this great planetarium and its projector, the first and only large scale planetarium projector ever made in the USA.
I was able to borrow this old magazine and scan it as a Acrobat PDF
I did some Sidewalk Astronomy Sunday evening at the Lighthouse in Santa Cruz. The waves were big all day so a large number of people were down at Steamer Lane. I setup my 10" Dob at 5PM and began showing the 1/5 Moon during daylight. Mars showed about 5:30PM. Not too much to show in Mars. Just an orange disk. Seeing was poor. Almost a ground fog over the ocean was kicked up by the big waves. Went back and forth from Moon and Mars. I did show some folks Orion Nebula. A bit hard to see with moon light and street lights. I did find M31, just a fuzzy. Nobody was impressed.
According to the latest data, this collsion is now down around 1:10000 probability. oh well. See the links off the same JPL URL.
There is now a 4% chance (1 in 25) that the small asteroid discovered last month will impact Mars at 3AM PST the morning of Jan 30th. Scientists hope to capture more data in the next couple weeks to refine the probability.
Note that the impact from this 150 foot rock will result in a crater about 1 mile across. This couldn't possibly be visible from Earth.
Registered club members can add pages, events, stories, observing dates, and blog entries to this site, via the 'Create Content' items on the right, as well as comment. Friends of the club can blog, and comment.
Comments can be used for discussions, until I get a proper forum working.
The body of any of these types can be plain text or a subset of HTML formatting (for instance, <strong>bold</strong>)