
A Tale of Two Astronomers
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A Tale of Two Astronomers
Once upon a time there lived two amateur astronomers, Alfred and Steve. Alfred
and Steve both entered the astronomy hobby 1 year ago. Both purchased their first
telescope from the same hobby store in their area. In fact, they purchased the
same first telescope, a 90mm f/10 achromat on a sturdy EQ mount with an RA motor
drive.
From here our budding astronomers diverge on separate courses through the hobby.
Alfred's Tale
Alfred grabs his observing book and owner's manual and is out observing the
first night. He uses the books to teach himself the names of constellations and
bright stars. The night sky transforms from a chaos of bright lights to an ordered
system of constellations and asterisms. Soon he is able to navigate the skies
like he navigates the streets of his town.
Alfred finds the telescope awkward to use at first. There are so many steps to remember; find object in finder, find it in the eyepiece, tighten the RA access, engage the drive and focus the eyepiece. However, as with any skill, practice makes perfect. Soon the individual steps blur into unconscious movements of his hands.
Alfred graduates to using a star atlas with an accompanying guide. He's now
taken to recording his evening observations in a simple log. Double stars are
a particular delight. Alfred eagerly scans each constellation on his atlas
for double star listings.
Time passes and the telescope becomes like a trusted friend. Alfred knows the
magnifications of his 2 eyepieces and barlow by heart. He's able to quickly
find any object plotted in his Atlas as long as it's within the light grasp
of his
telescope. His familiarity with the telescope is now to the point where he
doesn't need a light to find the RA and DEC axis locks, motor drive engagement
clutch or centering the finder. The telescope has now become an extension
of Alfred's desire and skill to observe.
After 1 year Alfred is convinced of two things. First, astronomy is an amazing
hobby invoking feelings of awe about the universe. Second, his telescope is
the best telescope in the world. Looking back on 12 months of observing with
it,
the telescope has never let him down.
Steve's Tale
Steve's been involved in a number of hobbies over the years. Like Alfred, he
makes an impulse buy. However, unlike Alfred, Steve's smart. He knows it's
important to read up on his purchase and the hobby in general. Steve logs online
and finds
a
telescope review site and reads the two reviews on his telescope.
With a sinking feeling Steve learns his scope will show secondary color,
have an upper magnification ceiling of 140x and is awkward to use due to it's
long focal length.
Steve spends the first month learning both the constellations and looking
for the issues with his scope that the reviews informed him about. With
dismay
Steve views the secondary color on brighter objects. To determine
the extent of the secondary color, Steve views stars of dimmer magnitudes.
From this he determines where the threshold is for the secondary color. He
also tests the upper magnification
of the scope and finds it falls apart at around 130x!
After the first month Steve admits he was a "sucker" on his first
telescope purchase. He now reads the telescope review site with a vengeance.
He reads and
digests review after review. Steve learns optical terms, company names and
simple methods
for
testing the optics of a telescope.
Another month passes. Steve orders his second telescope, a 4" apochromatic
refractor on an alt-az mount. Ahhh - this will be the perfect telescope.
The new Apo arrives. A proud Steve is out observing with it the first evening.
He hasn't learned the constellations or bright stars yet as he was field testing
the sucker telescope for his first month in the hobby. No matter, he will learn
them now.
He will as soon as he completes star testing his new APO. Steve's "smart" and
doesn't just drop $3000 on a new telescope without testing the optics. His
first night out and Steve realizes that to star test his new APO he will needed
a driven
mount so he can compare the star images with those in his new star testing
book.
Back online and a week of reading mount reviews. Steve learns all about drive
error, PEC, dual axis drives and other telescope mount terms. An order is placed
and several days later his new mount arrives. Out comes his APO for it's second
night in the backyard (Steve's been busy reading mount reviews) and Steve realizes
he will need quality eyepieces for the high magnifications needed for star testing.
Back online and 2 weeks of reading eyepiece reviews ......
Time passes and Steve's read reviews stating 4" of telescope aperture
is too small for "serious" observing. This kicks off not only another
round of reading reviews, but now he's intensely engaged in posting on the
astronomy forums. Boy, he won't make the mistake of buying a telescope that's
too small.
Steve's smart.
Over the next year Steve buys, tests and sells an 8" sct, 10" dob,
18" dob, 12" GOTO SCT and a 6" APO. Given that the price commitment
for each scope is increasing, Steve reads and researches his potential purchases
with greater and greater thoroughness. Test sessions with each telescope take
on the atmosphere of a tax audit. With so much money riding on each purchase,
Steve must be certain the telescope is without flaws.
After 1 year, Steve is convinced of two things. First, astronomy is an expensive
hobby. Second, unless you are "smart", you will be suckered into
owning and using some 90mm beginner's scope.
- Charles Laird and Spacely Sprockets like this
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