Box 6: RGO 156/2/1-3
Container
Contains 3 Results:
Item
'261 List of Photographs taken with the Astrographic Equatorial, from 1890 May 11 to 1893 May 31', [Plate] No.1-1152, 11 May 1890 - 31 May 1893
Item
Reference Code: GBR/0180/RGO 156/2/1
Scope and Contents
Volume of handwritten entries for photographic plates nos 1-1152, made with the 13-inch Astrographic Equatorial. Titled inside, 'Register of experimental photographs taken with the Grubb Refractor'.Column headings include: date, position of telescope, orien. screw, observer (initials), R.A., Dec., Focus Reading, Micrometer scale readings (R.A. and Dec.), clock times of exposures (begin, end, duration), barometer (external and internal therm.), maker of plate, development, remarks...
Dates:
11 May 1890 - 31 May 1893
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Item
'261 List of Photographs taken with the Astrographic Equatorial, from 1893 June 2 to 1895 March 15', [Plate] No. 1153-2450, 2 June 1893 - 15 March 1895 and 1948
Item
Reference Code: GBR/0180/RGO 156/2/2
Scope and Contents
Volume of printed 'Forms No. 261' with handwritten entries for photographic plates nos 1153-2450, made with the 13-inch Astrographic Equatorial. Column headings are: no. of photo, date, position of telescope, orient. of screw, observer (initials), R.A., Dec. North, Micrometer scale readings (R.A. and Dec.), clock times of exposures (begin, end, duration), barometer (external and internal therm.), plate and development, remarks, signature. Many plates are also marked 'Chart' or...
Dates:
2 June 1893 - 15 March 1895 and 1948
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Item
'261 List of Photographs taken with the Astrographic Equatorial, from 1895 March 17 to 1897 December 31st', [Plate] No. 2451-3808, 17 March 1895 - 31 December 1897
Item
Reference Code: GBR/0180/RGO 156/2/3
Scope and Contents
Volume of printed 'Forms No. 261' with handwritten entries for photographic plates nos 2451-3808, made with the 13-inch Astrographic Equatorial. Column headings are: no. of photo, date, position of telescope, orient. of screw, observer (initials), R.A., Dec. North, Micrometer scale readings (R.A. and Dec.), clock times of exposures (begin, end, duration), barometer (external and internal therm.), plate and development, remarks (e.g. dark, good, duplicate, etc.), signature. Many...
Dates:
17 March 1895 - 31 December 1897
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).