reflector

17.2019124 Rogers-Zeglinski 12-inch f/8 reflector

On 02 Apr, 2020 By rosenfel@chass....
  1. catalogue number: 17.2019124;
  2. name of artifact: Rogers-Zeglinski 12-inch f/8 reflector;
  3. date of production: 1926-1929;
  4. materials of manufacture: optical glass, coatings, copper alloys, steels, iron, hardwood (oak), softwood, plastic, paper, paint;
  5. maker: H.L. (Henry Launder) Rogers (1887-1955), restored by Joseph Zeglinski, 1967/1970 (primary re-silvered by Jerry Longworth in the DDO vacuum chamber), and 2019;
  6. provenance:
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    16.2019117 4.25-inch “Deluxe Space Conquerer [sic]” (Palomar Type)

    On 01 Apr, 2020 By rosenfel@chass....
    1. catalogue number: 16.2019117;
    2. name of artifact: 4.25-inch “Deluxe Space Conquerer [sic]” (Palomar Type), f/10;
    3. date of production: 1950s-early 1960s;
    4. materials of manufacture: optical glass, coatings, steel, copper alloy, plastic, enamel;
    5. maker: Edmund Scientific, Barrington NJ;
    6. provenance:
      1. RASC Montreal Centre;
      2. Geoff Gaherty, Foxmead Observatory, Coldwater ON;
      3. gift of Blake Nancarrow, Bradford ON;
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    12.2019820 Manseau "premier télescope Newton"

    On 31 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 12.2019820;
    2. name of artifact: reproduction of the reflector by Isaac Newton & John Wickens 1671-1672 (aka “Isaac Newton’s third telescope”), now in the collections of the Royal Society;
    3. date of production: 1987;
    4. materials of manufacture: optical glass, copper alloy, iron, steel, wood, paint;
    5. maker: Réal & Lorenzo Manseau, Drummondville, QC (signed in the wood base; also bears a latter label: “ATELIER DU SAGITTAIRE ENG/Réal Manseau/Drummondville 2011”);
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    7.201987 Fullum 10-inch Dobsonian telescope

    On 25 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 7.201987;
    2. name of artifact: “Fullum 10-inch Dobsonian telescope”;
    3. date of production: ca. 2010 November 1;
    4. materials of manufacture: optical glass, modern coatings, variety of lacquered hardwoods, Teflon & Ebony Star laminate/Formica -42 “Crystal”(?) alt-az bearings, steel and copper alloys, flocking(?), Velcro, 1x red-dot finder, two-speed focuser, primary mirror fan, plastic hardware;
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    2.2019326 Vixen “Replica of Isaac Newton's original reflector telescope”

    On 09 Mar, 2020 By rosenfel@chass....
    1. catalogue number: 2.2019326;
    2. name of artifact: “Replica of Isaac Newton's original reflector telescope” (wording of the manufacturer);
    3. date of production: ca. 2018/2019?;
    4. materials of manufacture: optical glass, modern coatings, blackened metal, some plastic, with a faux-wood finish on part of the OTA, copper-alloy name plate on the top of the base, two eyepieces (“Plössl” design?);
    5. maker: Vixen Optics, Saitama, Japan;
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