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Re: Number of days 100 million years ago
Thank you for the correction on distance to moon. Found that the moon is
receeding at a rate of 3.8 cm/year, so after 100,000,000 years the moon
was ~ 3,800 km closer than it is now [less than 1% different]
On Mon, Jul 1, 2013 at 12:11 PM, Thomas R. Holtz, Jr. wrote:
The Earth-Moon distance for the 400 Ma mark seems WAAAAAYYY too
Even the ~900 Ma values found by Kvale et al. (1999) found a semimajor
axis of just under 365000 km.
On Mon, July 1, 2013 12:09 pm, email@example.com wrote:
Are these data points correct?
Years ago Days/Year Hours/Day Distance Moon from Earth
Current 365.25 24 384000 km
65,000,000 ~369 ~23.75 ~360000 km
100,000,000 ~371 ~23.60 ~336000 km
400,000,000 ~400 ~22 ~192000 km
Thomas R. Holtz, Jr.
Email: firstname.lastname@example.org Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Science & Global Change Program, College Park
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA