Astronomy on a Budget
by Craig Levin
Part I: Introduction
Have you wanted to get into amateur astronomy, but feel
anxious about buying a telescope? Cheer up! You don't need a
telescope to get started, just the will to begin. Let's go!
Part II: Finding Your Way Around
The best place to start is under the sky itself. If one of
your friends is an amateur astronomer, talk to them, or look for
an amateur astronomers' club or a planetarium. Most amateur
astronomers' clubs welcome newcomers at "star parties", and you
can get a feel for what kinds of things you'd like to do at these
parties. Also, you can get a feel for how binoculars and
telescopes really work. Most pictures that you see in astronomy
books & in the news are the result of a lot of image processing
on an image that was taken by a professional using a large
telescope and a long exposure time, so it will show a lot of
color and detail. For instance, this Kitt Peak Observatory
picture of the Orion
Nebula is a blaze of colors, but it's just a pretty little
ghost of light in binoculars.
You can find out which club is closest to you by going to the
website of the Astronomical
League. If the local star parties all seem to be scheduled
inconveniently, you can find help at a planetarium. You can find
out where the nearest planetarium is at the website of the International Planetarium
Society.
Part III: Starter Books
There are plenty of books out there that can serve as an
introduction to astronomy. As the constellations change very,
very slowly, even over the course of a century, there's no great
need to buy the newest thing on the block. I feel that it is only
fair to note that the books listed here are ones that I have
read. Most of these should be available through online book
stores or through AbeBooks,
a firm that connects used booksellers and their customers.
- Bernhard, H.J., D.A. Bennett, and H.S. Rice (eds.).
Handbook of the Heavens. New York, NY: Whittlesey House,
1935.
- This is sort of the granddaddy of the modern introductions to
amateur astronomy. It's uncomplicated and straightforward. I
purchased my copy at a tent sale in the Eighties, and I've
enjoyed reading it ever since. The editors revised this book
three times, twice in the Forties and then in 1950, as the New
Handbook of the Heavens, through the same publisher.
-
- Dickinson, T. Nightwatch: A Practical Guide to Viewing the
Universe. Buffalo, NY: Firefly Books, 1998.
- I have only recently gotten my hands on a copy of this book,
but other amateur astronomers have recommended it highly to me. I
can see why: it's very colorful, the map sections are very well
laid out, and the slightly larger than usual size means that it
will be easy to read when the light is dim, although the copy I
have does not have pages for use when the only light is red, the
preferred color for flashlights for observing, as red light
doesn't destroy your night vision. I also felt that Dickinson's
treatment of the Moon, one of the first and easiest targets for a
newcomer to amateur astronomy, was too brief. I hope that
subsequent editions of this book have dealt with this
issue.
-
- Ferris, T. Seeing in the Dark. New York, NY: Simon and
Schuster, 2002.
- More about amateur astronomers than about the hobby, but well
worth it. The people here are professionals in all but name, and
the stories of how they got there are fascinating stuff.
-
- Fulton, K. The Light-Hearted Astronomer. Milwaukee,
WI: AstroMedia, 1984.
- I purchased this book when I started out in amateur astronomy
in the Eighties. As a way to figure out where you want to go and
what you want to do, it's hard to find a better book.
-
- Martin, ME and DH Menzel. The Friendly Stars. Mineola,
NY: Dover Publications, 1964.
- The idea behind this book is good for city people: instead of
presenting the constellations in their entirety, which are often
drowned out by streetlights, The Friendly Stars introduces
the reader to the brightest stars first and moves along to the
lesser lights of the constellations.
-
- Moore, P. Naked-Eye Astronomy. New York, NY: W.W.
Norton and Co., 1965.
-
Patrick Moore is one of the great figures in amateur
astronomy. After years of hard work at the eyepiece as an
amateur, Mr. Moore is a recognized expert on lunar geography.
He's been the host of a BBC show on astronomy, The
Sky at Night, that has run for decades. He revised this book
in 1985 and again in 2001 as Stargazing: Astronomy Without a
Telescope, published by the Cambridge University Press.
-
- Rey, HA. Find the Constellations. Boston, MA: Houghton
Mifflin, 1976.
- Produced by the same man who brought Curious George to
life. It's written for young children. He also produced an adult
version, called The Stars: A New Way to See Them.
-
- Schaaf, F. The Starry Room: Naked Eye Astronomy in the
Intimate Universe. Mineola, NY: Dover Publications,
2002.
-
- __________. Wonders of the Sky: Observing Rainbows,
Comets, Eclipses, the Stars, and Other Phenomena. Mineola,
NY: Dover Publications, 1983.
- Schaaf's books are blends that mix handbook & memoir. After
you read them for "just the facts", read them again for his
stories!
-
- Serviss, GP. Astronomy
with an Opera-Glass. New York, NY: D. Appleton and Co.,
1890.
-
- __________. Astronomy
with the Naked Eye. New York, NY: Harper and Bros.,
1908.
-
- __________. Pleasures
of the Telescope. New York,
NY: D. Appleton and Co., 1901.
- During the late nineteenth century, Serviss was the science
columnist for the New York Sun and a columnist for
Popular Science Monthly, which later became Popular
Science. He also was an early founder of American science
fiction. Serviss' books are, naturally, a little dated here and
there, but, for the most part, his words ring true. I found his
advice on picking out secondhand pairs of binoculars to be as
good today as they were when he wrote them.
Part IV: Starter Gear
Once you have started to recognize the constellations, you may
want to buy a celestial globe or a planisphere. A planisphere,
also known as a star-finder, is a pair of concentric discs that
will display what stars are visible at a given time. However,
since the discs are flat, and the sky appears to be round, the
constellations will appear distorted near the rim. The globe will
solve that, to a certain extent, but it is convex, while the sky
is concave. Although there are programs, like Stellarium or the sky option in
Google Earth, that emulate some of the functions of a planetarium
on a computer, they lack the breadth of view that only a real
planetarium can give. Similarly, although there are home
planetarium sets, they still have to deal with the fact that most
houses have more or less cubical rooms, while the sky appears to
be a dome. You can normally find either a globe or a planisphere
for sale at large bookstores and planetariums.
If you feel that you've gotten to enjoy stargazing, you should
consider purchasing a pair of binoculars. Binoculars have a
number of advantages as starter gear. Most people suggest 7x35, 8x40,
or 10x50 binoculars as general purpose binoculars, which can be used
not just for astronomy, but also for daytime hobbies like
birdwatching. They generally have a wider field of vision than
telescopes, which means that you will be able to reference what
you'd see through binoculars through your experience with the
night sky, instead of losing yourself in a tightly focussed maze
of dim stars. Binoculars are easy to carry about. A lot of
amateur astronomers who hunt for comets and minor planets use
binoculars all the time, because they're always sweeping from
side to side along the sky. I often use 7x21 binoculars, which
are smaller, but they fit in a pouch a little larger than a
cellphone. Best of all, even good binoculars can be inexpensive.
I purchased used 7x35 binoculars for under thirty dollars. The
7x21 binoculars would probably cost about as much new. If you
want some detailed reviews of binoculars, I suggest looking in
your local library
for reviews of binoculars in Consumer Reports or asking
other amateur astronomers what they think of different brands.
A couple of other items can also make your stargazing more
enjoyable. You might look for a camper's folding chair. Since
you're going to be in one place for a while, this is a good idea.
They're available at camping supply stores, sports suppliers, and
all kinds of other places. The best time to get them at a bargain
is in the spring and autumn. Similarly, it's worth bring along a
blanket. Wrap up in it while you're in that chair, or just spread
it out and lie down on a warm night. You should also bring along
a flashlight, but remember to put a red candy wrapper over the
lens. Red light doesn't knock out your ability to see in the dark
like white light.
Part V: Websites (other than this one)
Astronomers must have been among the first scientists to
benefit from the World Wide Web, right after the subatomic
physicists, who invented hypertext in 1990. The first websites
with astronomical content appeared more than ten years ago, and
more sprout up all the time. These are just a few basic sites to
start with:
- Current
Night Sky
- This website is part of the much larger Harvard-Smithsonian
Center for Astrophysics site. It's updated on a monthly
basis.
-
- Deep Astronomy:
Better Living Through Astronomy
- Similar in tone to Fulton's The Light-Hearted
Astronomer, it's a collection of light-hearted essays.
-
- Guide to Backyard Astronomy
- This is a collection of essays from the editors of Sky and
Telescope, one of the oldest journals for amateur astronomy.
Astronomy, their competitor, also has an introductory
site.
-
- Imagine
the Universe
- Put together by NASA's Goddard Space Flight Center, this is a
combination of an astronomy newswire and a collection of
easy-to-read essays by NASA scientists.
-
- The Night Sky
- This site is run by the Jodrell Bank Observatory, one of the
largest radio telescopes in the world. It offers much of the same
information as the Harvard-SAO's website, and also has links to
sites on choosing binoculars and telescopes.
-
- The
Sky at Night
- Mentioned above, this is one of the longest running shows on
astronomy out there. The website includes downloadable shows,
monthly star maps, and other gems.
-
- The
Sky This Week
- This US Naval Observatory webpage mostly talks about where
planets will be throughout the week, but it links to the rest of
the Naval Observatory's site, which is nifty in and of
itself.
Part VI: Bon voyage!
Please feel free to contact
me if you have any questions.
Created 10/2007, revised 5/2008. All rights reserved.