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Leonid Meteor Shower Nov. 18, 2001

Anticipation

Meteors, or shooting stars, are small particles of debris that are left by comets as they orbit the sun. When the Earth crosses the debris left by the comet the particles of dust fall to the Earth and burn up in the Earth's atmosphere and are seen as meteors. Astronomers can predict when a meteor shower will occur. The two best meteor showers of the year are the Persied meteor shower which occurs about the second week of August and the Geminid meteor shower which occurs about the second week of December. Astronomers rate meteor showers by the number of meteors one can see in an hour. On any given night you are likely to see about 5 meteors. During the Geminid meteor shower you can often seen 60 meteors and hour. Normally the Lenoid meteor shower is very weak showing only 5 to 15 meteors an hour, but every 33 years the Leonid put on a great show. In 1966 the Lenoid had a rate of up to 40 meteors per second. In 1999 the Leonids were predicted to be very strong. At that time I took two days off from work to see the show. I had planned to head north out to the desert, clouds closed in. After repeatedly checking the weather report I decided that heading east would be the best bet. I drove out to Joshua tree (about a 4 hour drive). The skies were mostly clear, with clouds moving in from the west. That night I saw the best meteor shower I had ever seen. Most of the meteors were extremely bright with long persistent tails. This year another large shower was predicted. Richard Mathews and I planned to take your families out to Joshua Tree. Richard, his wife Dawn and son Ray headed out to Joshua Tree on Friday to get a good campsite. When they got there they found all of the campsites were filled and the ended up staying in a hotel. On Friday the sky began to cloud up and by Saturday it was worse. Sally and I checked the weather reports for Joshua Tree, and Vasquez Rocks and Red Rocks. Over the course of a few hours the reports would check for each, some getting better some getting worse. By about 2 p.m. all of the sites that we typically go to were reporting partly cloudy skies. Since Joshua Tree is a very long drive we decided to head out to Vasquez Rocks which is almost as dark but only about 40 minutes away. Tom arrived at my house at about 9 p.m and we drove out to Vasquez under cloudy skies.

 

Vasquez Rocks

Once we got past the foothills that mark the northern boundary of the San Fernando Valley the sky cleared up significantly and it looked like we might have a good night. The next hurdle would be getting into Vasquez. Vasquez closes at sundown. Usually we park outside of the park and then carry all of our stuff into the park. The weather forecast predicted a low of 34 degrees which meant that we needed to carry in a bunch of warm clothes, hot drinks and sleeping bags to say warm throughout the night. When we arrived we were very happy to discover that the gate to the park was opened. We drove in and about 50 yard in we saw a sign pointing a telescope observing area. We drove down to the end parking lot and then we only had to carry our stuff a short distance to were the all of the people with the telescopes were set up. There were about 8 people with telescopes (all schmidt's). The sky to the west and south was cloudy but overall it wasn't too bad. Shortly after we arrived I saw my first meteor. We set up our stuff and then spent about a half hour walking around looking through people's telescopes. It was really a bit too cloudy for the telescopes so I was happy that I hadn't brought mine. While talking to one of the people with the telescope we found out that the park was opened to 12 midnight but then they were supposed to pack up. This was bad news since the meteor shower was supposed to peak at about 2 am.

At 11:40 we saw our first good meteor and really the best one of the night. It was very, very bright with a tail that spanned half the sky and last about 30 seconds. Soon, the people from the telescope club started packing up. We decided that we would wait until we were kicked out. I took a walk around and only a few telescopes were left at midnight. I talked with one guy who told me that the park ranger had come around and told everyone that they could stay the whole night if they wanted. Hooray, we could now settle down and enjoy the night!

2000 Meteors

After midnight we started seeing meteors more frequently. At 1am the pace picked up quite a bit and by 1:30 I seeing a meteor every 15 seconds. Some were short and a bit faint, but the majority of them were quite bright. As the show picked up we could hear oh's and ah's from the people around us. This would be frustrating at times since occasionally we would hear a bunch of people get really exited about a great one that we would miss, but since there were so many to see it was impossible to be disappointed. By 2 a.m. the longest time between seeing a meteor was about 5 seconds. I would often see pairs of meteors streaking through the sky. A number of times I could see four in the sky at the same time. My most conservative estimate is that I saw 2000 meteors that night. This was the most that I had ever seen, although I think that the last Leonid shower that I saw had meteors that were brighter with longer lasting tails, but perhaps that was because I was in a darker place. By 3 am the shower had slowed down a little, but I was still seeing a meteor every 15 seconds. By this time we the sky in the north east was a bit clearer so we had moved our chairs around to face in that direction. Facing that way we could see a huge outcrop of rock that has been made famous in a number of movies. We noticed that there were some people with flashlights climbing on the rocks. Climbing on the rocks in the daytime can be dangerous and it is just plain stupid at night. I mentioned that the people climbing the rocks would soon be nominees for the Darwin Awards. Tom said that it was the type of thing that would make a park ranger tell everyone to get out of the park. Tom was correct. Shortly after the park ranger told everyone to pack up an leave. It was about 3:30 by the time we left. There were still a large number of people in the park. We noticed that quite a few of them had parked outside of the park, so we think that the park had been closed to cars sometime after we arrived. This made me feel good about wanting to leave early to get to the park. As we drove home we could still see dozens of meteors streaking through the skies.