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Astro-tom.com Home Page

Projects

	Easy to Make Binocular Mount
	Building a Dobsonian Telescope
	Obsession Improvements
	Making your own Ramps
	Club Star Party sign
	Big Dob Improvements
	Container for truss tubes

Astronomy Web Links Page

Beginning

Online Amateur Astronomy Courses

Getting Started

	Asteroid Belt
	Astronomy Essentials
	Astronomical Distances
	Comets
	Craters
	Constellations
	Earth
	Eclipses
	Iridium Flares
	Jupiter
	Mars
	Meteors
	Mercury
	Microsatellites
	Moon
	Measuring the distance between the Earth and Sun
	Mythology
	Neptune
	Observing Stars vs Planets
	Orbits and Phases of the Moon and Planets
	Our Solar System
	Phases
	Planet Classification
	Planetary Rings
	Pluto
	Satellites
	Saturn
	Stars vs. Planets
	Uranus
	Using a Planisphere
	Use of a Planisphere
	Using Both Eyes
	Venus
	What to Look At
	Words to Know

Online Astronomy Classes

Telescopes

	Buying Telescopes
	Beginner's Advice
	Eyepieces
	Magnification Guide
	Astronomical 'Seeing' Scale
	Aligning Finder Scopes
	Easy Two Star Rough Polar Alignment
	Collimating Newtonian and Schmidt Cassegrain Telescopes
	Complete Instructions for Building a Dobsonian Telescope
	Transporting Telescopes

Advanced

Online Astronomy Classes

The Orion Nebula

Time

	Eyepiece Specifications
	Filters
	Sidereal Time
	Universal Time
	Calendars

Technical Data

	Alien Life (The Drake Equation)
	Celestial Coordinates
	Elliptical Orbits (Kepler's Three Laws)
	Eyepiece Specifications
	Files to Download
	Filters
	Inverse Square Law
	Celestial Coordinate System
	The Stellar Magnitude Scale
	Manufacturer List
	Nearest Stars (Distances, location, etc.)
	Precession
	Pronunciation Guide
	Useful Formulas
	Using Maps at the Telescope
	Why orbits are elliptical

Suggested Books

Tips and Advice

	Polar Alignment - Rough, Accurate, and Precision Methods for Photography
	Dewing
	1x Finder Scopes
	Star Party Answers
	Cleaning Optics
	e-Mail Answers
	Star Party Tips
	Star Party Etiquette
	Star Party Answers

Messier Marathon

	Tips on Participating in a Messier Marathon
	Marathon Observing Order
	Messier Object Maps
	Messier Object Images
	Messier Software for free download
	Deep Sky Observing Tips
	Virgo Cluster Observing Tips

Dictionaries

	Basic Dictionary
	Advanced Dictionary

Biographies

	Edward Emerson Barnard
	Johann Bode
	Tycho Brahe
	Copernicus
	Galileo Galilei
	George Ellory Hale
	George E. Hale
	Friedrich Wilhelm Herschel, better known as Sir William Herschel
	Sir William Herschel
	Caroline Herschel,
	Edwin Hubble
	Johannes Kepler
	Henrietta Leavitt
	Maria Mitchell
	Giuseppe Piazzi
	Edward Charles Pickering
	Edward Charles Pickering- 2
	Claudius Ptolemly (Claudius Ptolemaeus, Ptolomaeus, Klaudios Ptolemaios, Ptolemeus) Ptolemy Biography 1
	Ptolemy Biography 2
	Harlow Shapely
	Charles T. Yerkes
	Charles Tyson Yerkes

Spreadsheets for Download

These require Microsoft Excel to read.

General Information

	Telescope.xls
	Traksat.xls
	Obsrvtry.xls
	Ocular.xls
	Planets.xls
	Stars.xls

Observing Lists

	BrightStars.xls
	Next100.xls
	Messier.xls
	Messier_plus.xls
	Best-NGC.xls
	Nebula.xls
	Hersch.xls
	Herschel_400_tirion.zip

Programs / Databases

These require Microsoft Windows 95 or later to run.

	Aclock.zip
	Galsat51.zip
	Galaxy. zip
	Moonphas.zip
	Newt25.zip
	TUMOL

Utilities

Pkzip204g.exe

Images

	Moon (Detailed Lunar Map)
	Planets (Images and Physical Properties)
	Deep Sky
	Messier Objects

Antelope Valley Astronomy Club (AVAC)

Online Amateur Astronomy Courses

Observing/Events

Observing Groups

Club Documents

	Astronomy Club Operations Manual
	Astronomy Club Constitution and By-laws

Presentations

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

Change History

AVAC Pamphlets Online

	Getting Started in Astronomy
	Telescopes Astronomical Distances
	Craters on the Moon
	Eclipses
	Quick Telescope Polar Alignment
	Two Star Polar Alignment
	Iridium Flares
	The Sun, Our Nearest Star
	Club Information Tri-fold

Site Awards & Misc

	About astro-tom
	Improvements to my Obsession

11/2011

10/01/2017