Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979m%26p....20..169m&link_type=abstract
(International Astronomical Union and COSPAR, Julius Schmidt Symposium on 100 Years of Lunar Mapping, Lagonissi, Greece, May 25-
Astronomy and Astrophysics
Astronomy
Astrometry, Lunar Limb, Lunar Maps, Microdensitometers, Selenography, Astronomical Observatories, France, Libration
Scientific paper
An automatic method of lunar limb determination using a microdensitometer has been developed in order to supply lunar profiles of missing libration points in Weimer's (1952) atlas of lunar profiles. Photographic plates obtained from 1894 to 1909 were measured by a microdensitometer coupled to a PDP 1140 computer and the orientation of the plates and longitudinal and latitudinal librations were determined by the location of certain craters relative to the center of a circle formed by 40 limb points. The lunar limb was measured as the point on a ray from the center where the luminous intensity gradient as measured by the microdensitometer is at a maximum, with an error of less than 0.1 arc sec and a step size of 0.2 deg. Profiles obtained by this method are found to agree with those of Weimer to within 0.6 arc sec, allowing the completion of the lunar profile atlas.
No associations
LandOfFree
Lunar limb determination with the aid of the microdensitometer at the Nice Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Lunar limb determination with the aid of the microdensitometer at the Nice Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lunar limb determination with the aid of the microdensitometer at the Nice Observatory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1436417