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Here's a
sample of some of the telescopes I build and
their weights and measures. These will VARY
somewhat. Here's a couple
of items to consider when thinking about the
weights and measures and your telescope project:
- Diameter of
mirror. The 14" telescope below
can be used to estimate a 14.5"
or 15" scope.
- Focal length.
An F5 will be a bit longer than
an F4.5, for example. The weight
will be very close. The height
of the eyepiece at the zenith
will be a bit higher.
- Thickness of
mirror. Thinner mirrors weigh
less.
- Mirror cell.
These can be made of aluminum or
wood, so the total weight will
vary slightly.
- Strut
diameter. Some customers like
larger diameter struts (2" vs.
1.75" for a 14" telescope, for
example). Larger diameters
weight a bit more.
|
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10" F4.5 with Meade mirror:
|
-Height of eyepiece at zenith |
46" |
|
-Weight of OTA |
24# (including
two 1.25# counterweights) |
|
-Weight of rocker box |
15# |
|
-Weight of telescope |
39# |
|
-Footprint of rocker box |
17"x16.5" |
|
-Height of rocker box |
14.5" |
|
-Diameter of the altitude bearings |
18" |
|
 |
12" F5 with full thickness Discovery mirror:
|
Height of eyepiece at zenith |
59 1/4" |
|
Length of struts |
53 3/4" |
|
Weight of OTA (w/Mirror and counterweight) |
40 1/2# |
|
Weight of rocker box |
23 1/2" |
|
Footprint of rocker box |
19 1/4" x 20
1/4" |
|
Height of rocker box |
14" |
|
 |
12" F5 with Hubble mirror. An "Easy Travel
Telescope":
|
Diameter of primary: |
12" f5 |
|
Mirror cell: |
6-point all
aluminum flotation |
|
Length of struts |
53.5" (26.25"
folded) |
|
Dimensions of rocker box: |
15"H x 19.5"W x
20"D |
|
Weight of rocker box: |
25.5# |
|
Weight of "mirror box" w/mirror: |
19.5# |
|
Height of "mirror box": |
12" |
|
Inside diameter of OTA: |
14.5" |
|
Diameter of altitude Bearings: |
18" |
|
 |
13.1 F6 with Swayze mirror. An "Easy Travel
Telescope":
|
Inside diameter of rings: |
15" |
|
Outside diameter of rings: |
18" |
| Dimensions of
Rocker Box: |
15.5"H x 20"W x 20.75" D |
| Diameter of
altitude bearings: |
18" |
|
Length of struts: |
72" (six 36" travel struts) |
|
Diameter of mirror: |
13"
f6 Swayze full thickness |
|
Weight of OTA (w/mirror cover and CW): |
49.5# |
| Weight of rocker
box: |
30# |
| Height of
Eyepiece at Zenith: |
79" |
|
 |
14" F5 with Hubble Optics mirror:
|
Weight of optical tube assembly w/mirror |
44# |
|
Weight of rocker box |
25.5# |
|
Weight of mirror box w/mirror |
30# |
|
Weight of mirror |
19# |
|
Height of eyepiece at zenith |
71" |
|
Rocker box size |
21.75" x 20.75"
x 13" |
|
Length of struts |
65" |
|
Construction material |
Furniture grade
Baltic birch 12-ply plywood |
|
Focuser |
2" Crayford with
1.25" adapter |
|
Spider |
Destiny
"Professional" curved vane |
|
 |
17.5" F4.8 with a Coulter mirror
(the equatorial platform is not included in
these weights):
|
Diameter of primary: |
17.5" --
f4.8 |
|
Mirror cell: |
18-point
flotation |
|
Length of struts |
77.75" |
|
Dimensions of rocker box: |
13"x24.5"x26" |
|
Weight of rocker box: |
29.5# |
|
Weight of "mirror box" w/mirror: |
45# (48# with
mirror cover) |
|
Height of "mirror box": |
12" |
|
Inside diameter of OTA: |
19.5" |
|
Diameter of altitude Bearings: |
23" x |
|
For more information about
your requirements:
--Dennis Steele
--Tel: 650-315-6578 (anytime)
--Email: densteele@dobstuff.com
More of my photos here.
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