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My shakedown cruise
A week an a half ago my granddaughter and I went out on the schooner Manitou for as two hour cruise with over 50 folks on the west arm of the Grand Traverse Bay. It was my shakedown cruise, not the boat’s. I was asked to be the astronomer on the four day Astronomy Cruise. The regular physicist/astronomer was on sabbatical this year.
Here’s the image on the Ephemeris web site that I’ve been running since last autumn.
Anyway, back to the cruise. There was a steady wind and after the ship motored away from the dock and headed into the wind. 12 of us hauled on the line to raise the mainsail. Others raised the foresail and the crew raised two jibs. (If I got anything wrong, I’m working on the terminology, OK?). We stayed in the south end of the bay, sailing back and forth. I never knew our speed, but the boat seemed fast and responsive enough. I had a long chat with the captain with what the itinerary would be. She said their wasn’t one. That was determined by the wind Though they did expect to make it to one of the Manitou islands. I checked out below decks at the cabins and the galley. Snug but nice.
My companion and bunk mate for this cruise is a veteran of many cruises Norm Wheeler. He’s the instructor for Science and English at the Leelanau School and the head of the school’s Lanphier Observatory. He’s also a member of the Beach Bards, a story telling troupe that entertains at a bonfire on the beach at the school and on the Manitou.
I’m going to bring my 8 inch Celestron telescope for viewing at night from onshore, a couple of pair of binoculars I’ll also bring my laptop computer if worse comes to worst and it’s cloudy. I have a stock of my Grand Traverse Astronomical Society presentations to use.
Here’s some photos from the cruise.
9/16/10 – Ephemeris – the moon
September 16: This is Ephemeris for Thursday, September 16th.* The sun will rise at 7:22. It’ll be up for 12 hours and 28 minutes, setting at 7:51. The moon, 1 day past first quarter, will set at 1:38 tomorrow morning.
We’re looking at the moon this week leading up to International Observe the Moon Night Saturday night. We’ll have some telescopes at the Clinch Park Marina Saturday if it’s clear. The moon tonight is special for those with telescopes. With lots of features that will be revealed by the moon’s sunrise terminator, the sunrise line of the east edge of the visible part of the moon. Starting at the north or top of the moon is the strange square crater Barrow. Below that is the ringed plane, the crater Plato. It’s cool watching the shadows of the crater walls recede as the sun rises. There’s a gash in the mountains nearby called the Alpine Valley. On the southern half of the moon there’s a thin line of a shadow, the straight wall a 900 foot high and 67 mile long cliff.
*Times are for the Grand Traverse Area of Northern Michigan, USA.
Is crater Barrow really square? You be the judge.







