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T.W. Webb, from the coverplate in the 1917 edition of 'Celestial Objects for Common Telescopes'

The Reverend Thomas William Webb (December 14, 1807 – May 19, 1885) was a British astronomer. Some sources give his year of birth as 1806. The only son of a clergyman, the Rev. John Webb, he was raised and educated by his father, his mother having died while Thomas was a small child.^[1] He went to Oxford where he attended Magdalen College. In 1829 was ordained a minister in the Anglican Church. He was married to Henrietta Montague in 1843, daughter of Mr. Arthur Wyatt, Monmouth. Mrs. Webb died on September 7, 1884, and after a year of declining health Thomas died May 19, 1885.^[1]

Through his career T.W. Webb served as a clergyman at various places including Gloucester, and finally in 1852 was assigned to the parish of Hardwick near the border with Wales. In addition to serving faithfully the members of his parish, T.W. Webb pursued astronomical observation in his spare time. On the grounds of the vicarage or parsonage he built a small canvas and wood observatory that was home to a number of instruments, from a small 3.7" (75mm) refractor Webb acquired a number of progressively larger refractors and reflectors with which the observations in the guide were made. The largest telescope was a 9-1/3" (225mm) silver on glass reflector used from 1866 until his last observation in March of 1885. It was at Hardwick that he wrote his classic astronomical observing guide Celestial Objects for Common Telescopes in 1859 for which he is best known today. This two volume work was written as a guide the amateur astronomer, containing instructions on the use of a telescope as well as detailed descriptions of what could be observed with it. This work became the standard observing guide of amateur astronomers worldwide, and remained so until well into the 20th Century, gradually supplanted by more modern guides such as Robert Burnham's Celestial Handbook.

The title's reference to "common telescopes" refers to refractors of 3 to 6 inches and the somewhat larger reflectors that were commonly available to the amateur observers of the day.

Celestial Objects for Common Telescopes was first published in 1859. It was continually published through the sixth edition in 1917 edited by Rev. T.E. Espin. In 1962 a final edition was published by Dover Press, edited by Margaret W. Mayall. The 1962 edition is still readily available and widely used, while earlier editions have become collectors items and are quite rare.

• The Webb Society
• T.W. Webb's Deep Sky Objects

• MNRAS 46 (1886) 198