The blog of the Classical Astronomy Update, a free email newsletter especially for Christian homeschool families about astronomy happenings in the night sky (though everyone is welcome!) Also, watch this space for progress reports about "Signs and Seasons," the author's upcoming homeschool astronomy curriculum!
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May, 2006 promises to be a very interesting month for lunar passages of the bright stars and planets. In the first few days of May, the waxing crescent Moon is passing through the stars of the constellation Gemini.
Saturn and the "Twin Stars" On Wednesday, May 3, the Moon will pass near the planet Saturn. On this night, Saturn is the bright "star" to the south of the Moon (to the Moon's left as seen from North American and Europe). This scene will also be interesting since the "twin stars" of Gemini -- Castor and Pollux -- will be seen a little bit below to the Moon's right. These celestial bodies will appear nearly in a line, as a jewel necklace in the western sky after sunset.
The Star Spica The next week, on the evening of Wednesday, May 10, the waxing gibbous Moon will pass VERY CLOSE to the bright first magnitude star Spica. In the early evening after sunset, this star will look like a bright little flea riding the back of the Moon. A very close conjunction between these celestial bodies will be seen by everyone in Europe and North America. But if you were out in the middle of the Atlantic Ocean, you's see an "occultation" of Spica by the Moon, where the Moon's body would hide this star for about an hour! (From the Latin word "occultare," which means, "to hide.")
Mighty Jupiter The next day, Friday, May 12, the Moon will pass close to the bright planet Jupiter. Do you see that very bright "star" in the eastern sky after sunset? Well that's *really* Jupiter! Check it out if you have a small telescope. Most people do not realize that Jupiter is brighter than any star, and the fourth brightest object in the sky, after the Sun, the Moon and bright Venus.
Jupiter passes "opposition" on May 4, the day when the Earth passes between Jupiter and the Sun in its orbit. So Jupiter is at its closest to the Earth and a very bright object rising in the eastern sky at sunset. Though the Moon will pass wide of Jupiter this month, these celestial couplings are always a treat to see with the family.
Antares -- Down Under Late on the night of Sunday, May 14, an occultation of the bright star Antares by the Moon will be visible from Australia and New Zealand. This should be a remarkable sight for our friends "Down Under," but only for the night owls! If you go out in the evening after sunset, you can see the past-full Moon bearing down on bright Antares. But as the hours grow late, you can notice the Moon drawing closer! Australians can see the star wink out behind the Moon sometime after midnight. But in New Zealand, a couple hours to the east, the passage won't be visible til the wee hours. But if any Kiwi early birds wish to see Antares emerge from behind the Moon, get out around 5:00 AM local time and keep your eye on the Moon until the dawn arrives. You won't be sorry!
12:23 AM, Thursday, May 4, 2006 Posted by chickadee
i read this earlier today so when we were coming home from church tonight i was able to point it out to my kids. i found saturn! that was really neat.
but when i got our telescope out i could not site it in. i must be the worst telescope user in the world. we've had it since summer and the best i can do is site in the full moon. will i get any better?
i'm so glad gena pointed us to this site. we are using exploring creation with astronomy and i think your posts are going to be very helpful.
Chickadee--siting in the telescope
9:17 AM, Wednesday, June 14, 2006 Posted by Jean in Wisc.
I hope, Jay, you don't mind my jumping in here. I have found that the telrad (http://tinyurl.com/pszdd) is worth its weight in gold when trying to find something with the telescope. It was highly recommended by so many that I spent the $40, and it has made siting in objects very easy. If a telrad fits on your telescope, you might find your time outside at night to be much more productive! It projects a 3-ring bull's eye onto the sky; you center the bull's eye on the object you want to see, and it is miraculously in the eyepiece! If you cannot see the object you want to find, you can locate the stars around it in the outer rings of the bull's eye. HTH. Jean
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10:31 AM, Wednesday, June 14, 2006 Posted by Anonymous
Hi! I love your e-mail newsletter, and have just discovered your blog. Great work. Do you have any plans to publish an RSS feed?