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First Step - Please Read through the "Frequently Asked Questions" section below.

Search by subject or keywords by using the "Search" capability below. 

Second Step - If you can't find it in the FAQs, conduct a "Search"

Note:  I add information to the site based upon what people search for... or you may e-mail me with your ideas!

 

FAQs

 
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Distance from the Earth to the Sun

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What is the second nearest star to the Earth?

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Amount of sunlight reaching Earth

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Distance to Polaris, The North Star 

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Earth escape velocity; Earth surface area; Earth's revolution

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Many Biographies of Famous Astronomers
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Aristarchus of Samos

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Galileo

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Halley' s Comet; Edmund Halley

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Getting Started With Constellations

bulletWhat to Look at with telescope
bulletLargest reflector telescope
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Pictures of stars in the sky  

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(Astronomy Pic of the Day Archive)

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Asteroids; Comets

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Caldwell objects

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Crab Nebula

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Mythology

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Jewelry

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Parsec

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Mars Exploration Rovers

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Mercury

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Filters

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Apparent Magnitude

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Equinox

 

 

Searching a website for information shouldn't be as hard as figuring out which galaxies are which in the Virgo Cluster!  I hope that you'll find what you're looking for within the site.  You may search the entire site by using the form below or by using the Site Directory below.

 

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Site Directory

Astro-tom.com Home Page

Projects

bulletEasy to Make Binocular Mount
bulletBuilding a Dobsonian Telescope
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Obsession Improvements

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Making your own Ramps

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Club Star Party sign

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Big Dob Improvements

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Container for truss tubes

Astronomy Web Links Page

Beginning

bulletOnline Amateur Astronomy Courses

Getting Started

bulletAsteroid Belt
bulletAstronomy Essentials
bulletAstronomical Distances
bulletComets
bulletCraters
bulletConstellations
bulletEarth
bulletEclipses
bulletIridium Flares
bulletJupiter
bulletMars
bulletMeteors
bulletMercury
bulletMicrosatellites
bulletMoon
bulletMeasuring the distance between the Earth and Sun
bulletMythology
bulletNeptune
bulletObserving Stars vs Planets
bulletOrbits and Phases of the Moon and Planets
bulletOur Solar System
bulletPhases
bulletPlanet Classification
bulletPlanetary Rings
bulletPluto
bulletSatellites
bulletSaturn
bulletStars vs. Planets
bulletUranus
bulletUsing a Planisphere
bulletUse of a Planisphere
bulletUsing Both Eyes
bulletVenus
bulletWhat to Look At
bulletWords to Know

 

bulletOnline Astronomy Classes
 

Telescopes

bulletBuying Telescopes
bulletBeginner's Advice
bulletEyepieces
bulletMagnification Guide
bulletAstronomical 'Seeing' Scale
bulletAligning Finder Scopes
bulletEasy Two Star Rough Polar Alignment
bulletCollimating  Newtonian and Schmidt Cassegrain Telescopes
bulletComplete Instructions for Building a Dobsonian Telescope
bulletTransporting Telescopes

Advanced

Online Astronomy Classes

The Orion Nebula

Time

bulletEyepiece Specifications
bulletFilters
bulletSidereal Time
bulletUniversal Time
bulletCalendars

Technical Data

bulletAlien Life (The Drake Equation)
bulletCelestial Coordinates
bulletElliptical Orbits (Kepler's Three Laws)
bulletEyepiece Specifications
bulletFiles to Download
bulletFilters
bulletInverse Square Law
bulletCelestial Coordinate System
bulletThe Stellar Magnitude Scale
bulletManufacturer List
bulletNearest Stars (Distances, location, etc.)
bulletPrecession
bulletPronunciation Guide
bulletUseful Formulas
bulletUsing Maps at the Telescope
bulletWhy orbits are elliptical

 

bulletSuggested Books

 

Tips and Advice

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Polar Alignment - Rough, Accurate, and Precision Methods for Photography

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Dewing

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1x Finder Scopes

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Star Party Answers

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Cleaning Optics

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e-Mail Answers

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Star Party Tips

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Star Party Etiquette

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Star Party Answers

Messier Marathon

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Tips on Participating in a Messier Marathon

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Marathon Observing Order

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Messier Object Maps

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Messier Object Images

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Messier Software for free download

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Deep Sky Observing Tips

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Virgo Cluster Observing Tips

Dictionaries

bulletBasic Dictionary
bulletAdvanced  Dictionary

Biographies

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Edward Emerson Barnard

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Johann Bode

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Tycho Brahe

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Copernicus

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Galileo Galilei

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George Ellory Hale

bulletGeorge E. Hale
bulletFriedrich Wilhelm Herschel, better known as Sir William Herschel
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Sir William Herschel

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Caroline Herschel, 

bulletEdwin Hubble
bulletJohannes Kepler
bulletHenrietta Leavitt
bulletMaria Mitchell
bulletMaria Mitchell Organization
bulletGiuseppe Piazzi
bulletEdward Charles Pickering
bulletEdward Charles Pickering- 2
bulletClaudius Ptolemly (Claudius Ptolemaeus, Ptolomaeus, Klaudios Ptolemaios, Ptolemeus) Ptolemy Biography 1
bulletPtolemy Biography 2
bulletHarlow Shapely
bulletCharles T. Yerkes
bulletCharles Tyson Yerkes

 

Spreadsheets for Download

These require Microsoft Excel to read.

General Information

bulletTelescope.xls 
bulletTraksat.xls 
bulletObsrvtry.xls 
bulletOcular.xls 
bulletPlanets.xls 
bulletStars.xls 

Observing Lists

bulletBrightStars.xls 
bulletNext100.xls 
bulletMessier.xls 
bulletMesr-mas.xls 
bulletMessier_plus.xls 
bulletBest-NGC.xls 
bulletNebula.xls 
bulletHersch.xls 

Programs / Databases

These require Microsoft Windows 95 or later to run.

bulletAclock.zip 
bulletGalsat51.zip
bulletGalaxy.zip 
bulletMoonphas.zip 
bulletNewt25.zip 
bulletTUMOL 

Utilities

bulletPkzip204g.exe 

 

Images

bulletMoon (Detailed Lunar Map)
bulletPlanets (Images and Physical Properties)
bulletDeep Sky
bulletMessier Objects

Antelope Valley Astronomy Club (AVAC)

bulletOnline Amateur Astronomy Courses
bulletObserving/Events
bulletClub Documents
bulletAstronomy Club Operations Manual
bulletAstronomy Club Constitution and By-laws

Presentations

bullet"Your New Telescope"
bullet"Surveying the Milky Way"
bullet"Astronomical Tools"
bullet"Astronomy Essentials"

 

Change History

 

AVAC Pamphlets Online

bulletGetting Started in Astronomy
bulletTelescopes
Astronomical Distances
bulletCraters on the Moon
bulletEclipses
bulletQuick Telescope Polar Alignment
bulletTwo Star Polar Alignment
bulletIridium Flares
bulletThe Sun, Our Nearest Star
bulletClub Information Tri-fold

Site Awards & Misc

bulletAbout astro-tom
bulletImprovements to my Obsession

 

 

11/2011