2012a

2012a refers to a specific scientific designation, most commonly associated with astronomical observations. In astronomy, the "a" suffix often indicates the first discovery or observation of an object within a given year. Therefore, 2012a would typically denote an object, such as a comet, asteroid, or supernova, that was first identified or significantly observed in the year 2012 and is the first such significant event recorded for that year.

Without further context, pinpointing the exact object 2012a refers to is difficult. Scientific catalogs and observatories use these designations for initial identification and tracking. For example, a newly discovered asteroid might be given a provisional designation like 2012a by the Minor Planet Center, which is responsible for cataloging asteroids and comets. This designation allows astronomers to begin studying its orbit and characteristics.

Similarly, in fields like stellar astronomy, transient events like supernovae might receive designations that include the year of observation and a sequential letter. The "a" would signify it as the first such event noted within that year. These designations are crucial for maintaining an organized record of celestial discoveries and for facilitating communication and collaboration among researchers worldwide. The specific scientific field and the observing institution would provide the definitive identification of what 2012a represents.