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There are two different styles of script on this astrolabe. The older is found on the tympans and the rete. It is a cruder script consisting entirely of square capitals, often created with a punch, and it uses older number shapes. Astrolabe report (inventory number 35146) Astrolabe report (inventory number 35146)
Encoder – A Program for Digital Setting Circles Using a PC Mouse. Introduction: The purpose of the Encoder program is to provide the amateur telescope builder an inexpensive means of interfacing between optical encoders on a telescope and a computer running some planetarium or sky position software. This program is free to all amateur telescope builders and is not intended for sale. Description: Encoder - a program for digital setting circles using a PC mouse Encoder - a program for digital setting circles using a PC mouse
Making a Sturdy Wood Tripod - How To Making a Sturdy Wood Tripod - How To Making a Sturdy Wood tripod out of a (flimsy / cheap / shaky) aluminium tripod. I tried to make this article as comprehensive as possible, for the newbiest of beginners I could think of, so I made it out into paragraphs so you can figure out which parts you need to read and which you can skip. Most of the time I used metric measurements; remember that 25mm ~ 1”, and that anyway most measures I gave were for indicative purposes – you will adapt your dimensions to your particular needs. Introduction I’ve been an astronomer all my life. I’ve been a member of the CN forums for a couple years, and seemingly every week, veteran observers and beginners alike come in and complain about how shaky their scope’s mount is.
On the 3rd of January near 19h30m UT, the Quadrantids peak to provide one of the best annual meteoric displays of the year. The activity graph below is updated every 15 minutes - click for details. What are the Quadrantids? The Quadrantids are one of the finest annual meteor showers. They are caused by fragments of a comet that broke up in the recent past. International Meteor Organization | International Collaboration in Meteor Science International Meteor Organization | International Collaboration in Meteor Science
SAAF:S Uppdaterad 2013-10-08 Kontakt H.G.Lindberg SAAF:S
The Andromeda Project What a launch this has been! Although the Andromeda Project site has been live for less than a week, thousands of volunteers have already submitted more than 475,000 image classifications. This surpasses what any of us on the science team could have hoped for and we are thrilled with the enthusiasm of everyone who has participated. The Andromeda Project
Arduino Bluetooth Digital Setting Circles for Telescope Arduino Bluetooth Digital Setting Circles for Telescope I decided to build an Arduino digital setting circle for my mount because it's really hard to buy Tangent Instruments boxes cheaply, and the Argo Navis (the Lexus of telescope digital setting circles) is quite expensive. Besides it seemed like a cool project. I used an Arduino Uno, which cost $32 (Singapore dollars) an Arduino Proto Shield ($5), as well as some headers ($2) I got an RJ-45 jack from Sim Lim Tower and soldered it to the Proto Shield. Obviously four (4) digital pins from the Arduino are needed to read the two encoder channels.
Gary's Motorized Big Bino Chair by Gary Honis Animation - Taking the chair for a spin: Detailed Construction Procedure Page 1: This page - Introduction, Design Objectives & Main Components Page 2: Construction of Ground Board Page 3: Construction of Chair Base Page 4: Construction of Binocular Mount Page 5: Setting Up For Field Use Page 6: Finishing and Painting Page 7: Peltier Beverage Cooler and Warmer Page 8: Version II - with Speed Reducer Gary's Motorized Big Binocular Chair - by Gary Honis - Detailed Construction Procedure - Page 1 of 7 Gary's Motorized Big Binocular Chair - by Gary Honis - Detailed Construction Procedure - Page 1 of 7
Another DIY Parallelogram Binocular Mount Submitted: Wednesday, 28th March 2007 by Dennis Simmons Introduction At the Queensland Astrofest in 2003 I stood mesmerised by the sight of a fellow astronomer, gliding effortlessly around the cosmos on his commercial, motorised, binocular chair, replete with GoTo capability. The whole two-eyed, recline-in-comfort, “drive-me-there” observing experience looked simply awesome. At the time, I had with me my Vixen giant binocular (30x125), supported by the very nice Vixen Alt-Az fork mount, all fitted on a home made wooden tripod. Another DIY Parallelogram Binocular Mount Another DIY Parallelogram Binocular Mount
My Comet Couch! - Article My Comet Couch! - Article My Comet Couch! by Eugene Artemyeff I recently I purchased a new pair of Apogee 25x100's. Pleasing optical performance, great light gathering, but their ten pounds made my existing light weight parallelogram mount flex like a diving board once I put the required amount of counterweights on it.
Processing (Info) Lists and Plots: Comets This page contains lists and plots related to comets. If you use information from any of the lists in the preparation of any publication, please acknowledge the relevant URL and either CBAT or MPC. Lists and Plots: Comets
Space Situational Awareness, services provided by PROBA2 | PROBA2 Science Center
PolHors Toward the end of the fourteenth century there lived in England a man named Geoffrey Chaucer. He was a customs officer of the king and, because of his position, he was able to travel in England and Europe. He met people who owned books (that was not a very common thing then!) and he read as many books as he could get his hands on. He may have read, or at least skimmed thru, a great number of the books that were then in existence. In the Middle Ages very few people could read.
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science::.. The Astrophysical Journal Letters This site uses cookies. By continuing to use this site you agree to our use of cookies. To find out more, see our Privacy and Cookies policy.
venus transis NASA Goddard photos

Herschel Space Observatory

Some of my pages tell you a little about me and my passtime of writing trivial computer applications, including some Java applets and Java applications. I'm particularly proud of my automated astrolabe. This is a Java applet. Keith's Home Page
Photopic Sky Survey