Wilhelm Friedrich Herschel

William Herschel's objects are catalogued in the Historic WH. The dataset it too large to be presented here. He found 2476 NGC- and 8 IC-objects; 2459 NGC- and 7 IC-objects were new. Most objects were found with the standard 18.7" reflector ("large 20ft"), erected in autumn 1783. Based on the author's study of the Herschel observations, it is now clear that 11 objects were found earlier with smaller telescopes, the 6.2" reflector (the "7ft" with which Uranus was discovered in 1781) and the 12" reflector ("small 20ft"). Herschel's first discovery dates back to 24 August 1780, when the globular cluster NGC 6535 in Serpens was seen in the 7ft; a month later the open cluster NGC 1857 in Auriga followed. Incorrectly, NGC 7009 (Saturn Nebula) is often presented as his first discovery, moreover, with the "large 20ft"! Though Herschel made some sweeps with the 48" reflector ("40ft"), no object was discovered with the cumbersome instrument.

D N NI Disc/Obs Y M D Ap I T Discoverer Observer Name Con Type S ID Author Title Source List
  N 752 Herschel W. 1783 8 24 6,2 Rl v Hodierna 1654 Herschel C. 29.9.1783   AND III1m 4   Herschel W. Catalogue of a second Thousend new Nebulae and Clusters of Stars   Phil. Trans. 79, 212-255 (1789) VII 32
1 N 1857 Herschel W. 1780 9 30 6,2 Rl v       AUR II2m 4   Herschel W. Catalogue of a second Thousend new Nebulae and Clusters of Stars   Phil. Trans. 79, 212-255 (1789) VII 33
  N 1904 Herschel W. 1783 3 4 6,2 Rl v Mechain 26.10.1780   M 79 LEP V 5   Herschel W. Fixt Stars RAS Archive W. Herschel 4/1.4  
  N 2244 Herschel W. 1783 1 13 6,2 Rl v Flamsteed 17.2.1690   12 Mon MON II3p 4 NGC 2239 (Herschel J. 3.1830) Herschel W. Catalogue of one Thousend new Nebulae and Clusters of Stars   Phil. Trans. 76, 457-499 (1786) VII 2
  N 2362 Herschel W. 1783 3 4 6,2 Rl v Hodierna 1654     CMA I3p 4   Herschel W. Catalogue of one Thousend new Nebulae and Clusters of Stars   Phil. Trans. 76, 457-499 (1786) VII 17
  N 2447 Herschel W. 1783 3 26 6,2 Rl v Messier 20.3.1781 Herschel C. 26.2.1783 M 93 PUP IV1p 4   Herschel W. Fixt Stars RAS Archive W. Herschel 4/1.4  
1 N 6426 Herschel W. 1781 7 15 6,2 Rl v   Stephan 13.7.1876   OPH IX 5   Herschel W. Catalogue of a second Thousend new Nebulae and Clusters of Stars   Phil. Trans. 79, 212-255 (1789) II 587
1 N 6535 Herschel W. 1780 8 24 6,2 Rl v   Hind 26.4.1852   SER XI 5   Herschel W. Fixt Stars RAS Archive W. Herschel 4/1.1  
1 N 6802 Herschel W. 1783 9 22 6,2 Rl v       VUL III1m 4   Herschel W. Catalogue of one Thousend new Nebulae and Clusters of Stars   Phil. Trans. 76, 457-499 (1786) VI 14
1 N 7009 Herschel W. 1782 9 7 6,2 Rl v   Struve W. 1825 Saturn Nebula AQR PN 3   Herschel W. Catalogue of one Thousend new Nebulae and Clusters of Stars   Phil. Trans. 76, 457-499 (1786) IV 1
1 N 1980 Herschel W. 1783 9 20 12,0 Rl v     ι Orionis Nebula ORI * 9   Herschel W. Catalogue of a second Thousend new Nebulae and Clusters of Stars   Phil. Trans. 79, 212-255 (1789) V 31

6.2" and 12" Reflectors

18.7" and 48" Reflectors

Bath House & Slough House