Changes

==Properties and structure==

==Properties and structure==

The 70 Ophiuchi system is located 16.58 [[light year]]s from Earth.<ref name=universeguide/> The two stars are both K class yellow-orange dwarf stars and orbit each other with a period of 88.05 years and a mean seperation of 23.3 [[Astronimical units]] (or 2 to 7 seconds af arc as seen from Earth).<ref name=britannica>{{cite web|url=https://www.britannica.com/science/star-astronomy/Bulk-stellar-properties#ref510334|title=Bulk stellar properties Stellar temperatures|accessdate=July 16, 2020|publisher=britannica.com}}</ref><ref>

The 70 Ophiuchi system is located 16.58 [[light year]]s from Earth.<ref name=universeguide/> The two stars are both K class yellow-orange dwarf stars and orbit each other with a period of 88.05 years and a mean seperation of 23.3 [[astronimical unit]]s (or 2 to 7 seconds af arc as seen from Earth).<ref name=britannica>{{cite web|url=https://www.britannica.com/science/star-astronomy/Bulk-stellar-properties#ref510334|title=Bulk stellar properties Stellar temperatures|accessdate=July 16, 2020|publisher=britannica.com}}</ref><ref>

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  |last1=Batten |first1=A. H.

  |last1=Batten |first1=A. H.