One calendar year has a minimum of four eclipses â two solar eclipses and two lunar eclipses. Most years â such as 2017 â have only four eclipses, although you can have years with five eclipses (2013, 2018 and 2019), six eclipses (2011 and 2020) or even as many as seven eclipses (1982 and 2038). It is rare to have seven eclipses in one calendar year, however.
Shelf registration or shelf offering or shelf prospectus is a type of public offering where certain issuers are allowed to offer and sell securities to the public without a separate prospectus for each act of offering.
A shelf file is a cabinet designed to accommodate folders with tabs on the side rather than on the top. The cabinet has no drawers, only shelves. Some shelf files come with doors that recede into the cabinet. These cabinets are typically 12 or 18 deep, for letter or legal size folders respectively.