... Sun

Table 2 is only available in electronic form at http://www.edpsciences.org

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... EIT 195

EIT: extreme Ultraviolet Imaging Telescope, one of the instruments on SOHO. The 195 filter of EIT selects only radiation close to 195 Å and images are dominated by Fe XII $\lambda$195.1 emission formed at around 1.5 million K.

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... Markwardt

http://astrog.physics.wisc.edu/~craigm/idl/idl.html

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... data-sets

The complete set of results from the minimization procedure is given in Table 2 - available online.

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... 0.316

The slightly higher neon abundance quoted by Feldman & Laming (2000) leads to a photospheric Mg/Ne ratio of 0.295.

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... number

Obtained from ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SUNSPOT_NUMBERS.

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