Chandrasekhar limit. n (Astronomy) astronomy the upper limit to the mass of a white dwarf, equal to 1.44 solar masses. A star having a mass above this limit will continue to collapse to form a neutron star [C20: named after S. Chandrasekhar, who calculated it] Translations
No additional information is provided. Option Pending - known as OP status means the contract is in an option period, this typically stays 7-14 days and also buyer needs to pay the option fee as well. In this case, the seller has no right to terminate the contract during this period, just only the buyer. about 4 years ago.
OP-Option Pending means that the buyer has paid a fee for the unrestricted right to terminate the contract during the 'option period'. The buyer and seller agree on the amount of the fee and the length of time for the option period.