Urban Adventures in Astronomy, December 2013
- Last Updated on 12 January 2014
Location: The back of my townhouse in Azusa. The neighbor across the driveway has not one, but TWO bright lights, as if burglars would come using parachutes, hang gliders, or drones. I need to get a large umbrella to shield me from him. I arranged with the other owners to allow me to turn off the driveway lights for some darkness.
Time: December 30th, 6:00pm to around 10:30pm.
Weather: no apparent clouds although there might have been high cirrus. Plenty of haze so the sky was bright; 2nd mag stars visible, third mag much harder. Some slight wind. And COLD.
Equipment: Orion 10 inch Newtonian on an Orion EQ-G computerized German mount. Orion G3 cooled CCD 752 x 582 camera. This produces an image FOV of 27 arc-minutes wide.
The LAAS History Detective - Episode 5
- Last Updated on 07 December 2013
by Lewis Chilton
Laying the Groundwork for the LAAS - Amateur Astronomers Past – Part 2
(Unless otherwise noted, much of the material presented here and in Episode 4 is based on an article by Dr. Mars F. Baumgardt, titled “Amateurs and Telescopes of Early Southern California.” It was published in the March 1940 Griffith Observer magazine, Vol. 4, No. 3, pp. 26-38, and is used with permission.)
Let’s continue where we left off in Episode 4 and go back to the 19th and early 20th centuries to learn about other early Los Angeles amateur astronomers. Many of them were the movers and shakers of Los Angeles, did much to popularize the science of astronomy and contributed a great deal to the growth and development of the city, the region and the state.
Finding Moving Stars in the Orion Nebula
- Last Updated on 18 November 2013
A Search for Stars in the M42 Region that have Moved in the Time between 1901 and 2008
By: Vance Tyree
My wife and I were looking through an antique shop in Carlsbad California about ten years ago. I wasn’t looking for anything specific, but there are always “targets of opportunity” that could turn up. I was looking at some watches in a glass case when I felt a tap on my shoulder. My wife said, “You really need to come and look at this.” We went down an isle to a display cabinet upon which sat an old black box containing a number of glass lantern slides. I was stunned by what I saw in the box. It contained images of early 20th century telescopes along with images of images of large meteorites, photos of comets, photos of star fields, deep sky nebulae and many other things. It was obvious that she had found some sort of archive of old presentation slides about early astronomy in Southern California, made for some at present unidentified, organization. Many of the slides had hand written notes on them with names like G. W. Ritchey and E. E. Barnard. The antique shop was selling the slides individually, and some of them had already been sold. I wasn’t sure what I would do with this collection of slides but I couldn’t let it be sold off in pieces, so I bought the whole set of slides along with the black storage case.