2 theorize moon still wobbles 800 years after a meteor hit it

Walter Sullivan
1978 this is a digital version of an article from The Times Print Archive, before it starts online in 1996.
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Before 800, the moon swayed before the impact of a huge meteorite.
This was reported in the February.
24 science released by two astronomers based on laser observations at the University of Texas MacDonald Observatory and calculations of lunar conditions on the evening of June 18. 1178.
Just that night, the British monks recorded the \"burning torch\" \"that was\" ejected \"from the new moon, and at a considerable distance, fire, hot coal and sparks.
Then part of the moon was covered.
Two astronomers, professor.
Dr. Odile Calame and Dr. J.
The New York Times reported on October.
1976. Bring this account to their attention.
It tells a report from the doctor. Jack B.
Hartung of the State University of New York at Stony Brook attended the annual meeting of the School of Meteorology at Lehigh University. Dr.
Hartung cited a report on the chronicles preserved by Canterbury Gervase, according to reports from six monks.
Last year, two other meteorite expertsH. Nininger and G. I.
The monks saw a meteor crossing them, according to Huss.
The scene of the moon\'s surface when the meteor enters the Earth\'s atmosphere: doctor
Haidong believes that the impact produced a crater called Bruno dano Bruno on the far end of the moon.
It is 12 miles wide, and because of the light it gives, it seems to him to be one of the youngest impact scars on the moon.
The light is the passage of small craters and debris that hit the explosion in all directions.
These rays reach a large part of the moon\'s circumference.
A landing site of the Soviet spacecraft, the moon god, seems to have crossed 750 miles away.
In 1976, unmanned spacecraft collected samples from the ocean of crisis and returned them to Earth.
As pointed out in the Science article, an analysis of the sample may show whether this effect occurred before 800 or millions of years ago, as previously assumed.
No news was received about this analysis, Dr.
Murholland said yesterday.
Dr. AdvertisementHe.
Calame calculated that on the night of observation, Bruno\'s crater was 230 miles higher than the visible edge of the Moon (the \"limb.
The latter is only 1 for the fine new moon.
Six days after the new moon
However, two astronomers believe that the impact at the site would throw debris into the moon sky high enough to match the monkey\'s claim.
The event, they said.
\"This is not only visible, but enough revelation for her to describe this in the Canterbury Chronicle.
\"The effect on laser reflection this effect can also cause changes in lunar oscillation, including oscillation similar to that produced by the Earth earthquake.
But most people can no longer see him.
The back-and-forth movement around the moon\'s spin axis will hardly weaken and should be observed by laser ranging.
The impact of this effect is calculated by the doctor. Stanton J.
Peel of the University of California at Santa Barbara.
The oscillation will occur very slowly in a three-year cycle.
To detect oscillation, he used high-precision laser ranging on the reflector at three moon sites.
Apollo astronauts set up two mirrors and a third mirror on an unmanned Soviet lunar vehicle.
If the rotation of the moon is assumed to remain uniform, their effects will result in the periodic appearance of the laser reflector at different moon landing sites outside the location.
The relative position of the reflector left by Apollo 11, 14 and 15, coupled with the Soviet Lunakhod 2, makes the most significant change in the range to be Lunakhod 2.
It is calculated that these distances should be between 25 and 30 feet, which is within the sensitivity range measured by the laser distance of 240,000 miles from Earth-Moon.
These observations reveal what seems to be such an oscillation.
The authors say they did not \"prove\" the assumption.
But they added that the proposal \"does not appear to be less credible in the worst case than the proposal for a meteor to fall into the Earth\'s atmosphere \".
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Calame and Mulholland studied the problem at the center of etudes et al.
An observatory in Grasse, FranceDr.
Mulholland is now at the University of Texas in Austin.
A version of this file was printed on page NJ13 of The New York edition on February 24, 1978, with the title: 2 In theory, after a meteor hit the moon on 800, the moon still swings.