Sky & Telescope - December 2024 - 74

ASTRONOMER'S WORKBENCH by Jerry Oltion
and went home, and within a couple
Homage to Hubble
An offhand challenge leads to a fantastic work of art.
of days she started sending me emails.
" Look, I found a bucket that will work
for the back end, " and " Hey, did you
know bottomless cake pans fit perfectly
into the cut-off bucket bottom? And the
lid makes a great mirror cell. "
I was already a fan of 5-gallonbucket
secondary cages, so I knew she
was off to a good start.
Lauren's brother, Brian, says she has
good " astro luck, " and he's right. When
Lauren needed a secondary and spider
assembly, one of our other club members
offered to let her part out a Meade
scope that the member found too big
and ungainly. Lauren traded a wideangle
eyepiece for it, and suddenly she
had practically everything she needed.
Not only did that provide the secondary
and spider, but it also gave her a Sonotube
OTA that she could use for the
upper two-thirds of the Hubble replica,
plus a Dobsonian base (coincidentally
built a few years earlier by yours truly)
for the whole works to rest in.
Brian's Bicycle Dob (S&T: Jan. 2024,
A FEW YEARS AGO, I ground an 8-inch
(200-mm) f/4 mirror, thinking I'd
use it to build a travel scope for my
astronomy club. I never got around to
it, so last January I took the mirror to
our swap meet, where Lauren Wingert,
whose projects you've seen several times
in this column already, saw it and said,
" I could do something with that. " She
pLauren Wingert's Hubble replica (above) is
nearly indistinguishable from the original.
and I got to talking about what she
might build, and more or less out of
the blue I said, " Why don't you make a
replica of the Hubble Space Telescope? "
Lauren got that look in her eye, the
one that says, " Ha! I got this! " She
picked up a focuser at the swap meet
p. 70) uses a Lazy Susan for azimuth,
and Lauren liked the smoothness of it,
so she replaced my Teflon-and-Formica
azimuth bearing with a Lazy Susan and
added carpeting around it to provide
just the right amount of friction.
Then it was on to the OTA. Lauren
admits that " I didn't have much of a
plan, per se. " She just looked around for
inspiration and kept coming up with
Hubble-looking parts. A soda-can bottom
cut open and spread out makes a
pA bottomless cake pan fits within the bucket perfectly and provides a firm seat for the upper
tube assembly.
74 DECEMBER 2024 * SKY & TELESCOPE
pThe bucket lid makes an excellent primary
mirror cell.
ALL IMAGES COURTESY OF LAUREN WINGERT UNLESS OTHERWISE NOTED; LAUREN'S
HUBBLE REPLACING THE REAL HUBBLE IN ORBIT: LAUREN WINGERT / NASA

Sky & Telescope - December 2024

Table of Contents for the Digital Edition of Sky & Telescope - December 2024

Contents
Sky & Telescope - December 2024 - Cover1
Sky & Telescope - December 2024 - Cover2
Sky & Telescope - December 2024 - 1
Sky & Telescope - December 2024 - Contents
Sky & Telescope - December 2024 - 3
Sky & Telescope - December 2024 - 4
Sky & Telescope - December 2024 - 5
Sky & Telescope - December 2024 - 6
Sky & Telescope - December 2024 - 7
Sky & Telescope - December 2024 - 8
Sky & Telescope - December 2024 - 9
Sky & Telescope - December 2024 - 10
Sky & Telescope - December 2024 - 11
Sky & Telescope - December 2024 - 12
Sky & Telescope - December 2024 - 13
Sky & Telescope - December 2024 - 14
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Sky & Telescope - December 2024 - 18
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Sky & Telescope - December 2024 - 74
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Sky & Telescope - December 2024 - 79
Sky & Telescope - December 2024 - 80
Sky & Telescope - December 2024 - 81
Sky & Telescope - December 2024 - 82
Sky & Telescope - December 2024 - 83
Sky & Telescope - December 2024 - 84
Sky & Telescope - December 2024 - Cover3
Sky & Telescope - December 2024 - Cover4
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