Archive type
Content type
Showing 346 to 360 of 519 results
-
Aluminising tank
High vacuum pump visible. Written on back: "8 [erased] 9". n/a. Extent: 1 photograph. Size and dimensions of original material: Height…
-
Apparatus for moving a mirror
60-inch building and Engine Shed. Trackway. Written on back: "14". n/a. Extent: 1 photograph. Size and dimensions of original material:…
-
Aerial view of Boyden Observatory site
Looking east-southeast, with Residence in foreground. n/a. Extent: 1 photograph. Size and dimensions of original material: Height 21cm, width 25cm…
-
Aerial view of Boyden Observatory site
Looking east-southeast, with road up to the koppie in the foreground. Damon cameras visible at left edge. n/a. Extent: 1 photograph. Size and…
-
Aerial view of 60-inch enclosure
Looking south. n/a. Extent: 1 photograph. Size and dimensions of original material: Height 17cm, width 25cm. Condition of original material: Slight…
-
Construction of aluminising building
60-inch building and Engine Shed in background. Written on back: "6". The aluminising build would later be converted to a store and…
-
60-inch Enclosure and Engine Sheds
Written on back: "Boyden (Mazelspoort) / 60 inch turret and engine sheds (for rotation of turret), early 1930's". PB12_0049 and…
-
60-inch Enclosure and Engine Sheds
Written on back: "Plain Black. / retouch.". PB12_0049 and PB12_0050 are derivatives. n/a. Extent: 1 photograph. Size and dimensions of…
-
Instrument row seen from roof of Office Building
(l.t.r.) ADH, 13-inch, 60-inch, 8-inch enclosures. At extreme right is the Sky Patrol on elevated rails. n/a. Extent: 1 photograph. Size and…
-
Four images of the solar surface, 1915 August
Printed label glued on back: "MOUNT WILSON SOLAR OBSERVATORY / B 25 Sun-spot Group, August 3, 5, 7 and 9, 1915, H[alpha] Hydrogen". n/a.…
-
eta Carinae (NGC 3372) region
Caption slip glued to photograph: "A 1[corrected in pencil with '2'].25-fold enlargement of ADH 420, a red-sensitive plate (103a-E)…
-
Large Magellanic Cloud, imaged with the Hamburg Schmidt
Written on back: "Hamburg Schmidt / 103a-0 / 10 min[utes]". Photo has uneven yellowish cast. n/a. Extent: 1 photograph. Size and…
-
Large Magellanic Cloud, centered on NGC 2070
Circular image on white background. Written on back: "Plate 1." and "Top". n/a. Extent: 1 photograph. Size and dimensions of…
-
Region around IC 2944
Circular image on white background. n/a. Extent: 1 photograph. Size and dimensions of original material: Height 20cm, width 21cm. Condition of…
-
Lagoon (Messier 8) and Trifid (Messier 20) Nebulae
Circular high-contrast image on a black background. Written at edge (on original print): "ADH 534". PB12_0057 and PB11_0031 are…