Andrew Graham (April 8, 1815 – November 5, 1908) (born in County Fermanagh, Ireland) was an Irish astronomer/computer. An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... 9 Metis (mee-tis) is one of the largest Main belt asteroids. ... April 25 is the 115th day of the year in the Gregorian Calendar (116th in leap years). ... 1848 is a leap year starting on Saturday of the Gregorian calendar. ... April 8 is the 98th day of the year in the Gregorian calendar (99th in leap years). ... The Battle of New Orleans 1815 was a common year starting on Sunday (see link for calendar). ... November 5 is the 309th day of the year (310th in leap years) in the Gregorian Calendar, with 56 days remaining. ... 1908 (MCMVIII) is a leap year starting on Wednesday (link will take you to calendar). ... County Fermanagh (Contae Fhear Manach or Fear Manach in Irish), is the westernmost of the six counties that form Northern Ireland. ... An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ... A drawing of a desktop computer. ...

He discovered the asteroid 9 Metis in 1848 whilst employed at Markree Observatory in County Sligo, Ireland. An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... 9 Metis (mee-tis) is one of the largest Main belt asteroids. ... 1848 is a leap year starting on Saturday of the Gregorian calendar. ... The Observatory of Mr Cooper of, Markree Castle, - undoubtedly the most richly furnished private observatory known, -- is worked with great activity by Mr Cooper himself and by his very able assistant, Mr Andrew Graham. ... Sligo (Sligeach in Irish) is a county in the province of Connacht in the west of Ireland. ...

He later worked on the Markree Catalogue, observations of about 60,000 stars along the ecliptic take between Aug 8 1848 and 27 March 1856 and which was published in four Volumes over the years 1851, 1853, 1854,1856 respectively. In working on this, he developed the square-bar micrometer, which greatly increased the efficiency of determining positions (right ascension and declination) of celestial objects. The plane of the ecliptic is well seen in this picture from the 1994 lunar prospecting Clementine spacecraft. ... Right ascension (RA; symbol α: Greek letter alpha; celestial longitude) is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. ... In astronomy, declination (dec) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. ...

He later worked as First Assistant at the Cambridge Observatory from 1864 to 1903 where he worked on the Cambridge Catalogue, in many ways an extension of his work at Markree but of southern zone stars, published in 1897. 1864 was a leap year starting on Friday (see link for calendar). ... 1903 (MCMIII) was a common year starting on Thursday (see link for calendar). ... 1897 was a common year starting on Friday (see link for calendar). ...