DobMod
DOBSONIAN TELESCOPE EXPERIENCE, MODIFICATIONS, TIPS, REFERENCE, HINTS, IDEAS, WHISHES
DIY
Newtonian
OTA
collimation
3D Print
Zhumell
camping
chair
reference
transport
AstroScan
ETX-125
Eyepiece
Focuser
alignment
car
laser
mirror
plywood
Astromist
Electronics
FOV
Photography
apperture
collimator
diameter
finder
handle
telescope
weight
AFOV
Adaptor
Barlow
Celestron
Clockdrive
DSO
GSSP
Imaging
PDA
Photoshop
Refractor
Specs
Televue
Wide Field
Windows
about
balance
ball
carry
catalog
cleaning
counterweight
cradle
dark adaptation
dew
dob
finderscope
focal
gain
goto
green laser
haul
heavy
height
hoping
hopping
length
limit
magnet
magnitude
map
motion
mount
objects list
observing
phone
ratio
red dot
resolution
simple
size
sky
spherical
star test
telrad
tips
tracking
travel
zoom

Wednesday, March 27, 2019
Dob Dolly. Furniture dolly mod to carry 12" Dob.
This is a really trivial construction which I've assembled in like 15 minutes from the scrap at hands to haul my Zhumell 12" pre-assembled to the other side of the high-rise multi-apartment building I'm living in (as well as to the roof in two runs). I'm observing from home right on it. It turned to be a very sturdy, mega-convenient, and fun to use system.
I think the image is selfexplanatory but folks from one of the forums begged me to share details anyway, thus they are under the cut along with all of the benefits list.
Friday, March 15, 2019
Time before sunset left
This is the old boy scout method of determining the time left until the sunset (or elapsed after the sunrise) "manually".
And here is how I have it criticized for my backpacking group folks:
Saturday, March 2, 2019
5 Watt flashlight conversion for $5
Saturday, January 26, 2019
Meade ETX125 easy collimation
I have noticed that my ETX125 airy disk developed two hot spots which mean it got out of collimation a bit.
My favorite for eons Weasner website has a lot of information on that but it's mostly "don't do that yourself", "be super careful", and very little on the actual subject with quite a conflicting tips. So here is how I've done it:
Sunday, October 28, 2018
What to do on a cloudy night? Or Star Chart VR!
Deprivation after just a handful of cloudy observing nights leads to... ideas. I have borrowed my Son's Gear VR headset and found a pleasant virtual world of astronomical wonders immediately surrounded me almost naturally.

StarChart is a simplistic amusement app, but the digital implementation of the starry night ambience is truly artistic. It even has its own darkness-adaptation-safe campfire! Wonderful touch. No images spoiling under the cut as the immersion is the key.

StarChart is a simplistic amusement app, but the digital implementation of the starry night ambience is truly artistic. It even has its own darkness-adaptation-safe campfire! Wonderful touch. No images spoiling under the cut as the immersion is the key.
Sunday, August 5, 2018
Laser collimator external power mod 2
Just a bit over a year passed since the previous emergency mod I did to my laser collimator. It's been serving me so well after that the version 2 has been postponed until I had to print something small to test the new printing bed.
The construction design is very simple and based around the micro USB PCB I've got off eBay for like $0.75 a pair. It went out very nicely overall and works flawlessly. Goodbye "pill" batteries.
The construction design is very simple and based around the micro USB PCB I've got off eBay for like $0.75 a pair. It went out very nicely overall and works flawlessly. Goodbye "pill" batteries.
Wednesday, June 28, 2017
Planisphere Android Widget
For several years I've been looking with envy at the Android Smart Watch custom clock face with that simple planisphere on it and wanted something like that on my phone screen as well. I thought it's obvious to port the wearable screen to the regular one and had been waiting for a couple of years for that to happen... No luck. But finally, the wait is over.
I had some time this spring to implement it! Looks gorgeous between my other informational widgets, which I am consulting with several times a day:
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