Partial solar eclipse will occur on 4 January

Physics Today ◽  
2011 ◽  
Keyword(s):  
Solar Eclipse ◽  
Partial Solar Eclipse

Some effects in the geospace plasma during partial Solar eclipse of 1 august 2008 above Kharkiv. 1. The observation results

2009 ◽  
Vol 15 (3) ◽  
pp. 70-81 ◽  
Author(s):  
L.Ya. Emelyanov ◽  
◽  
M.V. Lyashenko ◽  
L.F. Chernogor ◽  
◽  
...  
Keyword(s):  
Solar Eclipse ◽  
Partial Solar Eclipse ◽  
Observation Results

scholarly journals Interferometric Observations of the Extreme Solar Limb at 2.8 and 6 cm During the October 1977 Eclipse

1980 ◽  
Vol 86 ◽  
pp. 61-64
Author(s):  
G. J. Hurford ◽  
K. A. Marsh ◽  
H. Zirin
Keyword(s):  
Simple Model ◽  
Brightness Temperature ◽  
Solar Eclipse ◽  
Angular Resolution ◽  
Solar Limb ◽  
Brightness Distribution ◽  
Hydrostatic Equilibrium ◽  
High Angular Resolution ◽  
Owens Valley ◽  
Partial Solar Eclipse

The radial intensity profile at the extreme solar limb was measured with high angular resolution during the October, 1977 partial solar eclipse using the Owens Valley solar interferometer at 2.8 cm and the VLA at 6 cm. Substantial limb brightening was observed at 6 cm, with a peak brightness temperature corresponding to an 80% increase over the disk value. Much less limb brightening was observed at 2.8 cm. In each case an extended “tail” to the brightness distribution was detected. The results at both wavelengths are consistent with a simple model in which a rough chromosphere is overlaid by a corona in hydrostatic equilibrium with a density of 5 × 108 cm−3 at its base.

A Tentative Astronomical Dating of Ibn al-Haytham’s Solar Eclipse Record

Nuncius ◽  
2014 ◽  
Vol 29 (2) ◽  
pp. 324-358 ◽  
Author(s):  
Dominique Raynaud
Keyword(s):  
Solar Eclipse ◽  
New Method ◽  
Test Case ◽  
Partial Solar Eclipse ◽  
Image Projection

This article aims to test a new method of dating optico-astronomical manuscripts, using Ibn al-Haytham’s Epistle on the Shape of the Eclipse as the test case. This work is selected because of indications that its diagrams are based on reality. After clarifying the observation conditions, an astronomical ephemeris is applied to sift through the eclipses that occurred during Ibn al-Haytham’s life throughout the area he is believed to have sojourned. Next, the remaining eclipses are sorted by computing the image projection. The results show that Ibn al-Haytham’s Epistle is likely to have reported the partial solar eclipse of 28 Rajab AH380/21 October 990 in Baṣra. Because this exercise is primarily the test of a new method, this finding should be regarded as a tentative outcome, pending further information.

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