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  • 1
    Electronic Resource
    Electronic Resource
    The constancy of the solar diameter over the past 250 years (1980)
    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 548-551 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Reconsideration of meridian circle observations with analysis of transits of Mercury and durations of total solar eclipses indicate that there has been no detectable secular change in the solar diameter during the past 250 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/288548a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Seasonal variation of oriental sunspot sightings (1980)
    [s.l.] : Nature Publishing Group
    Nature 287 (1980), S. 617-619 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Figure 1 shows the number of sunspot sightings that have been recorded in each month of the year according to a catalogue of pre-telescopic sunspot sightings (139 in all)6 which is based on an independent search of official oriental dynastic histories. These sightings have been used to obtain the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/287617a0
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  • 3
    Electronic Resource
    Electronic Resource
    Records of lunar eclipses in medieval Arabic chronicles (1997)
    Cambridge : Cambridge University Press
    Bulletin of the School of Oriental and African Studies 60 (1997), S. 1-34 
    Details
    ISSN: 0041-977X
    Source: Cambridge Journals Digital Archives
    Topics: Ethnic Sciences , History
    Notes: In a previous paper, we discussed a series of solar eclipse observations recorded in medieval Arabic chronicles both for their astronomical and chronological value. In the present paper we investigate lunar eclipses reported in these same sources as well as in many further chronicles. It should be stressed that our interest here is limited to eclipse records from chronicles; we have not included any material from technical treatises composed by astronomers. The observations are largely from al-Andalus (Islamic Spain), Egypt, Iraq, and Syria; they mainly cover the date range from A.D. 867 to 1520, with additions from 1674 to 1791.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0041977X00029542
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Diameter of the Sun in AD 1715 (1988)
    [s.l.] : Nature Publishing Group
    Nature 331 (1988), S. 421-423 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is a fortunate accident of nature that the Moon and Sun have nearly equal diameters as seen from the surface of the Earth. This concurrence produces total eclipses of the Sun of relatively short duration (typically a few minutes), and this affords a method of measuring the Sun's diameter, with ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/331421a0
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    Paper (German National Licenses)
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