Publication Date:
2021-05-19
Description:
At the total solar eclipse on June 30, 1973, an observation of contact times was made at Atar, Mauritania, by means of cinematography of the flash spectra. The atmospheric transparency at the total phase was not so fair, but it might not act so seriously on the photometry of the continiuum of the spectra, judging from the growth of the eclipse curves. Although resultant profiles of the moon agree generally with those of Watts' charts, a large discrepancy is found between II =280° and 290°. It might be attributed to some defects of Watts' charts. Excluding these portions and counting out the data such that the reduced eclipse curve shave
abnormal shapes, the apparent relative position of the moon to the sun at that time is, determined on the current ephemerides. Assuming ET-TAI=32.80, the observed position minus calculated one is found to be :
Δ (Lmoon－Lsun)=+0."39土0."02(m.e.),
Δ (βmoon－βsun)=+0.43±0.13 (m.e.).
Description:
Published
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Refereed
Format:
pp.43-52
