Scans of archive plates from the original Wilson Telescope, obtained before it was installed at UCLO in 1929.
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m3_0.png?itok=og1lJiUD)
M3, 1-hour exposure, 1898 August 15, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m5_0.png?itok=AH_gFtUm)
M3, 1-hour exposure, 1898 August 15, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m13_0.png?itok=y6BlycIp)
M13, exposure details unknown, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m15_0.png?itok=oBBFCC9A)
M15, 1-hour exposure, 1898 September 11, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m27_0.png?itok=z4Howp0x)
M27, 1-hour exposure, 1894 September 8, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m31_0.png?itok=SdHBUE1o)
M31, 2-hour exposure, 1898 September 8, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m33_0.png?itok=nY0csE-9)
M33, unknown exposure, 1898 October 14, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m37_0.png?itok=1rakHFnF)
M37, 40-minute exposure, 1895 February 25, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m42_0.png?itok=Yd_nzDqW)
M42, 20-minute exposure, 1897 January 22, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m45_pleiades_0.png?itok=DnKuGrG0)
M45 (Pleiades), exposure details unknown, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m51_0.png?itok=wY_sGbnB)
M51, 1.5-hour exposure, 1897 March 6, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/m67_0.png?itok=xHd9z3tV)
M67, 30-minute exposure, 1895 February 27, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/moon_0.png?itok=LXGHgZBy)
Moon, exposure details unknown, Wilson Telescope
![](https://www.ucl.ac.uk/ucl-observatory/sites/ucl_observatory/files/styles/owl_carousel/public/veil_nebula_cygnus_0.png?itok=886btfiI)
Veil Nebula (Cygnus), exposure details unknown, Wilson Telescope