Asteroid 2002 NY40
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Summary: Asteroid 2002 NY40 came so close to Earth on Aug. 17th and 18th that sky watchers could see it through small telescopes. "It moved very quickly against the background field of stars. Very impressive, and a hard object to find and keep in the field of view," says Canadian amateur astronomer Lance Taylor, who used a 7-inch telescope to view the asteroid. "Visually it looked almost like a satellite--just farther away."

John Rogers: "Here is a video from the Stony Ridge Observatory. I recorded it by placing a handheld camcorder, operating in night-shot mode, up to the eyepiece of the 30-inch telescope. Visually, the asteroid appeared to be a deep golden-yellow in color. It was an awe-inspiring sight to see it passing stars of varying colors. There was no hesitation in discerning motion. It was immediately apparent."

Francisco Reyes, University of Florida astronomer: "We hosted an open house at our teaching observatory so the public could view the asteroid. I set up a 16" monitor and got a round of applause from the audience after I was able to find the object and they saw it moving across the screen! It was a wonderful experience for me and the public to see the asteroid moving so fast." [See the video, processed by Kazumasa Imai]

Unless otherwise stated, all images are copyrighted by the photographers.

  Photographer, Location Images Comments

Marco Verstraaten, The Netherlands
Aug. 18
#1, more Photo details: 300mm, f5.6 telelens, 15 images with a Audine CCD camera, all 20 seconds exposed.

Martin Goedecke, Stuttgart, BW, Germany
Aug. 18
#1 M. Goedecke: "Wow what a great event! Luckily everything worked very well this evening. We have 150 visitors at our observatory. Everybody could see the movement of NY40 on a video screen." This image shows the asteroid streaking across the crowded star fields of the Milky Way.

Jack Newton, British Columbia, Canada
Aug. 18
#1 Photo details: one minute exposure; Meade 16" at f10 and a Finger Lakes Dream machine CCD camera

John E Cordiale, Queensbury, NY, USA
Aug. 18
#1 J. Cordiale: "I used the following equipment: FC-65 65 mm Takahashi Refractor at F/5.9 on a Losmandy G-11 mount. Starlight Xpress HX916 CCD camera operating at full 1300 x 1030 resolution Astronomik RGB Color Filters Astroart and Adobe Photoshop 6.0 for image processing. I took 3 images 1 minute each through Red, Greeen and Blue Astronomik filters."

Clay Sherrod, Arkansas Sky Observatory, Arkansas, USA
Aug. 18
#1, more C. Sherrod: "This is a 3-image mosaic of 2002 NY40. It was actually VERY difficult to time this NEO as it entered and passed through our narrow field of view (only 8' x 11' overall size). It would pass completely out of the CCD frame within 50 seconds, so it was necessary to fire away at 40-second exposures at the moment we thought the NEO would be entering the field....good luck and practice prevailed here. An incredibly humbling experience to see such rapid motion via such a close object."

Jörgen Blom, Stockholm,
Sweden
Aug. 17
#1, #2 J. Blom: "Despite a very serious case of light pollution I managed to image the trail of asteroid 2002 NY40 from my balcony in central Stockholm. The view through my 4 inch refractor and my 60 mm guidescope was partly obscured by a giant building crane with a big glowing sign on its boom. Nevertheless, at least three of my 18 pictures taken on August 17 and 18 showed the asteroid´s faint trail, even though I never could see the tiny moving speck in either of my telescopes."

Steve Bodin, Silverdale, Washington, USA
Aug. 18
#1 S. Bodin: "I recorded this 3-second movie using a PC164C low light level videocamera attached to a 17.5 inch dobson mounted reflector at f3.0 focus. The frame size is about equal to the view through a 250x telescope. The double star in the view is 8.37 and 10.4 magnitudes. I estimate that the asteroid is about 10th magnitude at this time. "

more anecdotes

Becky Ramotowski, amateur astronomer: "Using my 80mm Celestron Refractor, I found a small group of 6.5 magnitude stars on the published flyby track. Then I waited for a dim 'star' to move through that field. When the asteroid appeared it was moving fast. It was an amazing thing to watch zooming through the star fields so quickly. It was also NOT what I would call a binocular object."

Lawrence Garrett, Association of Lunar and Planetary Observers: "I was quite pleased to observe 2002 NY40 at Stellafane in 25" and 14.5" telescopes. What a show! Of my 72 observed near Earth asteroids, this tops them all. I fact I believe only the jaw-dropping 60 degree tail of comet Hyakutake 96/B2 tops this asteroids flyby in my 29 years at the telescope."

Charles Kiesel, amateur astronomer: "With the use of a computer star program, a 4 1/2 reflector and a 36X eyepiece I was able to follow 2002 NY40 for about 5 minutes. I kept the star program running with 3 second updates and kept moving between the computer in the house and the telescope in the backyard. When the computer program indicated that the asteroid was near a star or two bright enough for me to locate in the telescope's 8 X viewfinder, I started watching the field of stars around the marker stars. I soon spotted the asteroid. I had to use averted vision (peripheral vision being more sensitive to light) while looking through my telescope to see it because the stars and the asteroid were very dim. The sky conditions were not ideal--moon light, small town lights,very humid air spreading the light and off and on again clouds. I count myself fortunate to have been able to see it at all."

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