Current Auction Is Open For Bidding
Our Current Auction Closes Jan 09    
Home |Sitemap|Contact Us| Past Auctions  
 How to Bid   Register to Bid   Auctions   Consign   About Us   Featured Lots   Reviews 
Bidder Login
Bidder #

New Bidder Registration
Forgot your password?

The Current Auction
Ends January 9th
Olympics Auction Preview
Begins Jan 10, 2019
Advanced Search
By Item Number
Gallery Search
Past Auction Search
How Do I Bid?
What is BidTracker™?
New Bidder Registration
The 30-Minute Rule
Terms and Conditions
New to RR Auction?
About Us
Register to Bid
Jobs at RR Auction
Press Releases
Consign to RR Auction
How to Consign
2018-19 Auction Calendar
Oct 18
Nov 7
Nov 15
Dec 5
Dec 13
Jan 9
Jan 17
Feb 6
Feb 14
Feb 21
Mar 6
Mar 14
Apr 10
Apr 18
  More Dates & Deadlines

Item 247 - Apollo Sextant Catalog 409 (May 2013)

Back To Previous Page
(we are no longer accepting bids on this item)
Minimum Bid: $1,000.00
Sold Price: $10,621.20 (includes buyer's premium)


Scarce unflown Block II Apollo sextant. Metal cased unit measures approximately 7 x 6 x 6, with parts having serial numbers SN EE-1 and SN EE-2. The sextant was used with its counterpart (the scanning telescope) to determine the Command Module’s position and attitude with relation to stars or landmarks. This data was then supplied to the onboard computer to calibrate the spacecraft’s Inertial Measurement Unit (IMU). The sextant was a highly accurate optical device capable of measuring the included angle between two targets. Angular sightings of two targets were conducted through the fixed beam splitter and movable mirror located in the sextant head. The sighting head assembly is rotatable to 270 degrees in shaft axis position in either direction, from the zero reference point. The sextant lens provides 1.8-degree true field of view with 28X magnification. The movable mirror is capable of sighting a target to 57 degrees line of sight from the shaft axis. Both the fixed and moveable mirrors are fabricated of beryllium; the beryllium is Kanigen coated and aluminized to obtain maximum reflectivity. The sextant target optics include an indexing mirror assembly and a beam splitter, telescope, and eyepiece assembly. RR Auction COA.

Terms and abbreviations used in our descriptions.

You must be a registered user and logged in to view Past Auction Item Images

If you do not currently have an account, click here to go to our secure registration page.

Important Information

Tips For Consignors


For a complete list of auction beginning and ending dates, check our dates and deadlines page.