Skip to main content
Advanced Search
4.5-inch refracting telescope
4.5-inch refracting telescope

4.5-inch refracting telescope

Date1883
Inventory Number1997-1-0030
ClassificationTelescope
Subject
    Maker John Clacey 1857 - 1931
    User Harvard College Observatory ? founded 1839
    Cultural Region
      Place of Origin
        Dimensions13.7 × 19.8 × 109.5 cm (5 3/8 × 7 13/16 × 43 1/8 in.)
        Material
          DescriptionThis brass refractor has an aperture of approximately 4.5 inches. The objective is missing along with its cell. The tailpiece is flat, and the focuser simple in pattern. The eyepiece has an outer diameter of 1 9/32 inches (3.3 cm).

          There are brackets for a finder scope (missing).
          Signedin cursive lettering on tailpiece: John Clacey, Maker, Cambridgeport, Mass. 1883
          Curatorial Remarks1997-1-0030 through 1997-1-0035 found together.
          Historical AttributesLikely used by Harvard College Observatory.
          6-inch refracting telescope
          6-inch refracting telescope
          Alvan Clark and Sons
          Date: 1910
          Accessories: shipping crate, terrestrial eyepiece, dust cap, mount and tripod (2003-1-0077b)
          Object number: 2003-1-0077a
          2.75-inch refracting telescope
          2.75-inch refracting telescope
          John Dollond (II)
          Date: 1800-1810
          Accessories: dust cap, 2 eyepieces, 2 filters, folding tripod stand, finder, case
          Object number: 1989-4-0006
          2.75-inch refracting telescope
          2.75-inch refracting telescope
          W. & S. Jones
          Date: circa 1820
          Object number: 5007
          1.75-inch refracting telescope
          1.75-inch refracting telescope
          Alvan Clark and Sons
          Date: 1880-1910
          Object number: 1997-1-0032
          day or night refracting telescope
          day or night refracting telescope
          John Dollond (II)
          Date: 1800-1815
          Object number: DW0848
          3.75-inch achromatic refracting telescope
          3.75-inch achromatic refracting telescope
          Edward Nairne
          Date: circa 1770
          Accessories: altazimuth mount and tripod (0055b)
          Object number: 0055a
          1.25-inch pocket refracting telescope
          1.25-inch pocket refracting telescope
          John Gilbert (II)
          Date: 1760-1780
          Accessories: folding tripod (stored inside); dust cap
          Object number: 5003
          4-inch Clacy telescope used as guide scope on 61-inch Wyeth reflector
          4-inch Clacy telescope used as guide scope on 61-inch Wyeth reflector
          John Clacey
          Date: 1880-1890
          Object number: 2016-1-0040
          2-inch refracting telescope
          2-inch refracting telescope
          John Dollond (II)
          Date: 1780-1800
          Object number: DW0845
          2.75-inch refracting telescope
          2.75-inch refracting telescope
          W. & S. Jones
          Date: circa 1839
          Accessories: 4 eyepieces; case
          Object number: 1996-1-0001
          3-inch refracting telescope
          3-inch refracting telescope
          Alvan Clark and Sons
          Date: circa 1900
          Object number: 1997-1-0031a
          1.5-inch refracting telescope
          1.5-inch refracting telescope
          Alvan Clark and Sons
          Date: 1880-1910
          Object number: 1997-1-0033