Lunar Meteoroid Impacts and How to Observe Them (Astronomers Observing Guides)

The space rock that hit the moon at 61,000 kilometers an hour
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More information on this event, including pictures and video, can be seen on the August 23, page of www. The June 3 and 4 page of www.

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Amateur astronomers Christopher Go the Philippines and Anthony Wesley Australia simultaneously observed this event, making it the first ground-based confirmed observation of an actual impact event on another world beside the moon to my knowledge. The impactor must have been a rather large object to have produced such a bright flash of light as seen from a half billion miles away. The first meteor did not produce any dark markings, and it is unlikely that this one will do so as well.

Lunar Meteoroid Impacts and How to Observe Them (Astronomers' Observing Guides)

New Quantity Available: 1. Majestic Books London, ,, United Kingdom. Many scientists think our solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. Established seller since Of the planets, Jupiter and Saturn are the easiest to observe. FAQ Policy.

Both appear to be atmospheric fireballs that disintegrated before reaching the clouds. This reinforces my suggestion which is now being considered by others to begin a serious project of continuously monitoring of Jupiter for impact events.

Astronomer's Observing Guides Series

This would need to be done at high powers, enough for 1 arc-second or better resolution. A setup similar to what is used in lunar meteor or asteroid occultation work, but with larger telescopes at least inch and less sensitive cameras since Jupiter is bright would do the trick, and could reveal the true rate of such impacts with implications for Earth and the impact probability here.

The book is now available for purchase at bookstores as well as online. One can also go to Amazon. In order to better qualify the probability of an observation being genuinely impact in nature, we have adopted a definitive classification scheme. The descriptors are given below. With these criteria in place, we can better group observations in terms of quality and estimate the likelihood of the observation being that of an actual impact event.

ISBN 13: 9781441903235

It is very possible that a candidate could be elevated to the status of "confirmed" with the corroborative observation of a second independent observer, as stated in the qualifications above. Under good conditions, you can see light and dark areas, polar caps, and possibly even clouds. Some clouds are yellow in color and can develop into dust storms, when a major dust storm hits it can be impossible to observe any surface detail until the storm subsides. It is easier to observe Mars if you use colored filters. Violet and blue filters are helpful if you want to observe clouds and other atmospheric phenomena but not yellow clouds or dust storms.

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Green filters are helpful for observing the polar caps and other white areas, yellow clouds and dust storms. If you have made either Jupiter or Saturn observations, you may want eyepieces that provide slightly more magnification than the eyepieces you used for Jupiter and Saturn. Mars has two moons, Deimos and Phobos, however they are very difficult to see in an amateur telescope. Observations of the Martian moons should only be attempted near Mars opposition. Venus shows no surface detail under a telescope, however it is possible to see the phase change over the course of a Venus year.

Mercury is a difficult telescope object. It is never far from the sun, which means the only time it is high above the horizon is during daylight. If you plan ahead, you can observe Mercury near the time of greatest elongation, which is the easiest time to observe the planet.

Mercury has craters, however they are not easy to observe from ground based telescopes. Uranus and Neptune are not difficult to observe, you just need to know where to point your telescope. Pluto and the various Asteroids are not difficult to observe either, however they are difficult to distinguish from nearby stars.

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In it he argued that the absence of observed fashes of meteoritic impacts on the Moon might be interpreted to mean that these Astronomers' Observing Guides. Buy Lunar Meteoroid Impacts and How to Observe Them (Astronomers' Observing Guides) on ✓ FREE SHIPPING on qualified orders.

The only reliable way to be sure an object is Pluto or an asteroid and not a star is to watch it every night for a few nights, if it moves then it is not a star. Amateurs can help verify data concerning possible extra-solar planets, for more information, see the Amateur Radial Velocity Studies site.

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It is possible to observe meteors with a telescope. Telescope observers will occasionally see meteors, and this can happen at any time. You can set up a telescope with the specific goal of looking for meteors, however this can be a tedious and disappointing process. You may see dim meteors that are not visible with the naked eye, but your field of view is smaller.

In most cases you need to observe for long periods to see any meteors. In any event, naked eye observations are easier and more likely to be successful. Both naked eye and telescope observing are easier during a meteor shower. Bright comets are easy to see with the naked eye; however a telescope shows details of the comet nucleus that are not visible to the eye.

Dimmer comets can only be seen with a telescope.

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With persistence, it is possible to discover a comet that no one else has seen, however most people do not have the level of determination this requires. To determine the magnitude of a comet, you can defocus your telescope so nearby stars appear as big as the comet; You then find a star that has the same brightness as the comet, the magnitude of the star is the magnitude of the comet.

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Given enough time say several billion years all stars change. For some stars, changes can be observed over the course of a few hours to a few months, even by amateur astronomers. Any amateur astronomer 16 years of age or older can participate in an observing program and may possibly contribute to basic research. Two stars that are located close to each other in the sky are called double stars. Double stars are common as are multiple stars where three or more stars are located close to each other in the sky.

Lunar Meteoroid Impacts and How to Observe Them (Astronomers Observing Guides) [Paperback]

Several factors affect whether you can split a double or multiple star:. In a multiple star system, the brightest star is called the primary. If you measure the direction from the primary to any other star in the system, this direction is called the position angle position angles vary from zero degrees to degrees. If the two members of a double star orbit each other, then the system is called a binary star.

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If they do not orbit each other, then the system is called an optical double. Binary stars and optical double stars are not easy to distinguish, but can be done. When binary stars are observed over a period of years, the position angle will change in a pattern that repeats in a cyclical pattern going from zero degrees to 90 degrees to , to and back to zero. Also spectroscopic analysis, particularly in repeated over a period of years, can show changes in velocity that indicate a binary star.

The main types of star clusters are: open clusters, globular clusters, stellar associations and stellar streams. The NGC and IC catalogs do not include all open clusters, this is particularly true of open clusters that occupy a wide field. They do not include any associations or streams. A number of catalogs cover open clusters, associations and streams.

For example the Collinder catalog lists many open clusters and associations. There are four types of nebulae. Emission nebulae, planetary nebulae, reflection nebulae and dark nebulae.

When observing emission nebulae and planetary nebulae it often helps to use a device known as a nebula filter particularly when observing faint nebulae in light polluted skies. The article Doug Scobel.