William Frederick Denning

(Royal Astronomical Society)

Obituary: MNRAS 92, 248 (1932); PASP 43, 361 (1931); AN 243, 63 (1931); biographical extract by Martin Beech.

Denning found 19 IC objects with his 10" Newtonian from Bristol; 17 were new. The two known ones are IC 342 and IC 356, discovered by Barnard (the latter perhaps already by Lewis Swift). All objects were found from 1890-92. There is no reference for 4 objects (and yet no exact date). These must be commuicated to Dreyer by letter.

D N NI Y M D Ap I T Discoverer Observer Con Type S Author Title Source List
1 I 166 1890?     10,0 Rl v     CAS III1r 4        
1 I 334 1891 9 30 10,0 Rl v     CAM I/P 1 Denning, W. Notes on New and Old Nebulae  Obs. 15, 104 (1892)  
  I 342 1892 8 19 10,0 Rl v Barnard 11.8.1890   CAM SBc 1 Denning, W. New nebula  Astr. & Astro-Phys. 12, 189 (1893)  
  I 356 1890 11 7 10,0 Rl v Barnard 23.8.1889 Swift L. <1879? CAM Sb/P 1 Denning, W. Notes on New and Old Nebulae  Obs. 15, 104 (1892)  
1 I 361 1893 2 11 10,0 Rl v     CAM II1r 4 Denning, W. The Cluster No. 361, Dreyer's Index Catalogue (1895)  Obs. 41, 140 (1918)  
1 I 381 1889 8 26 10,0 Rl v     CAM SBbc 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 1
1 I 391 1890 11 7 10,0 Rl v     CAM Sc/P 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 2
1 I 396 1890 10 19 10,0 Rl v     CAM S? 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 3
1 I 440 1890 11 16 10,0 Rl v     CAM Sab 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 4
1 I 442 1890 11 9 10,0 Rl v     CAM E-S0 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 5
1 I 450 1890?     10,0 Rl v     CAM S0-a 1        
1 I 451 1890?     10,0 Rl v     CAM Sb 1        
1 I 455 1890 10 17 10,0 Rl v     CEP S0 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 6
1 I 467 1890 11 7 10,0 Rl v     CAM SBc 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 7
1 I 469 1890 9 14 10,0 Rl v     CEP SBab 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 8
1 I 499 1890 9 8 10,0 Rl v     CAM Sa 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 9
1 I 512 1890 8 23 10,0 Rl v     CAM Sc 1 Denning, W. New Nebulae  MNRAS 51,96 (1890) 10
1 I 529 1890?     10,0 Rl v     CAM Sc 1        
1 I 1454 1891 8 9 10,0 Rl v     CEP PN 3 Denning, W. Notes on New and Old Nebulae  Obs. 15, 104 (1892)  

10" Reflector at Bristol