Powerhouse Museum Collection Search 2.53
Category history:
   

Support the Powerhouse with a tax-deductible gift

Make a donation
Make a donation
Make a donation
Currently on public display
+ By the Light of the Southern Stars Exhibition, Sydney Observatory
User keywords, or 'tags', are words added to object records by other users to enhance their discovery. You can add keywords that may be useful in helping others find this object.

We are experimenting with tagging because sometimes museums describe objects in language that is highly specialist and user added keywords are useful in bridging the 'semantic gap' between the language of the museum and that of the user.

Any keywords listed have been added by other users like yourself. You can click on them to use them as search terms to dicover other objects. User tags
Related subjects lists the broad themes that have relevance to the object you are viewing. You can click these themes to see other objects related thematically. Related Subjects
+ Navigation
Here you can find links to other objects in our collection that belong to the same formal classification categories as the object you are viewing. Similar objects
Astronomy Equipment > Sextants

+ 2010/1/25 Aircraft sextant Mk V, metal /...
+ 2010/1/225 Box sextants (2) with case, m...
+ 85/79 Box sextant with case, brass / lea...
+ H3789 Octants, (3), and a sextant, ebony...
+ H4348 Octant, [ebony], ivory/brass/mahog...
+ H4944 Sextant, brass, [John Bruce & Son]...
+ H5105 Octant, ebony/bone and brass, Bate...
+ H5106 Sextant, brass, T & H Do[e]Belt, [...
+ H5107 Octant, ebony/brass, Sewill, Liver...
+ H5109 1 model in wood of an early quadra...
+ H5361 1 Sextant instrument by Kilpatrick...
+ H5641 Nautical Sextant in Cedar Case. In...
+ H6652 Marine sextant made by E. & E. Ema...
+ H6917 Surveyor's box sextant made by Car...
+ H7232 Sextant with accessories and case,...
+ H8528 Sextant and wood case. (LC)....
+ H9358 Navigational equipment, nautical s...
+ H10057 Navigational equipment, sextant i...
+ H10399 Sextant, No. 1920, brass, made by...
+ B1345 Sextant, nautical, surveyor's inst...
+ B1435 Sextant, bubble, aviation, with al...


'Autogenerated tags' are a new feature that we are testing. These tags are generated by passing the object record through the OpenCalais service from Reuters. This service makes a 'best guess' at the names, places, companies and specialist terminolgy that is in the text of the object records.

By clicking on a tag you can find all other collection records related to that person, place or company.

Because the tags are autogenerated there are likely to be some errors. If you spot one of these then please flag the tag for deletion by clicking the 'x'. Auto-generated tags: [Beta]

H5108 Sextant, brass, and box, made by Berge, London, England 1800 -1820
zoom image
Images: 01 02 03

Object statement
Sextant, brass, and box, made by Berge, London, England 1800 -1820
Production Notes include information about the design, manufacture and marketing of an object. Production notes
Matthew Berge took over from Ramsden after the latter's death in 1800. He ran the workshop until his own death in 1820 when the workshop passed to Worthington.
History Notes include facts about what has happened to an object since manufacture. This could include who owned it and how it was used (provenance). It may also describe any cultural meanings with which it may have become associated. History notes
Used to find longitude at sea by measuring distances of certain stars from moon. Height of star measured by noting the position of alidade when image of star reflected from pivoted to fixed mirror & into telescope; coincides with horizon seen through unsilvered portion of fixed mirror.

 This text content licensed under CC BY-NC.

Description
Sextant, brass, and box, made by Berge, London, England 1800 - 1820. Brass sextant with silvered vernier scale, signed on central bar. 60 deg arc on bottom with calibrations. Moving alidade carries small mirror at top, bottom moves across scale. One arm has sighting telescope, other has fixed mirror. Signed on central bar "Berge London, late Ramsden", with the opus number "1787".

Made: Berge; England; 1800 - 1820
Marks
Signed on central bar "Berge London, late Ramsden", with the opus number "1787".
The Registration Number of an object is a unique identifying number applied by the museum at the point of acquisition. Current numbering format comprises the year of acquisition, followed by a sequential number. For example, '2007/45' is the Registration Number that represents the 45th acquisition in the year 2007. Registration number
H5108
Production date
1800 - 1820
Height
230 mm
Width
230 mm
Depth
110 mm

 This text content licensed under CC BY-SA.
Acquisition credit line
Purchased 1950
Subjects
+ Navigation
Currently on public display
+ By the Light of the Southern Stars Exhibition, Sydney Observatory
Short persistent URL
Concise link back to this object: http://from.ph/241966
Cite this object in Wikipedia
Copy and paste this wiki-markup:

{{cite web |url=http://from.ph/241966 |title=H5108 Sextant, brass, and box, made by Berge, London, England 1800 -1820 |author=Powerhouse Museum |accessdate=20 May 2013 |publisher=Powerhouse Museum, Australia}}


Copyright
Images on this site are reproduced for the purposes of research and study only. Whilst every effort has been made to trace the Copyright holders, we would be grateful for any information concerning Copyright of the images and we will withdraw them immediately on Copyright holder's request.
Object viewed 4356 times. Parent IRN: 2141. Master IRN: 2141 Img: 326085 Flv: H:3591px W:5016px SMO:0 RIGHTS:.