Category: Maintenance
G-11 Guiding Commands: ST-4 relays vs. ASCOM
My autoguiding isn’t as straightforward as it used to be. I have a lot of new gear that I’m trying to figure out; G-11, Gemini, ASCOM, ST-4, MaxIM. Each of these adds […]
Re: Yes you are crazy
Art Morton wrote: > I do not have data to forward, but what I remember is +- 0.00 to > 0.04~0.15 on each axis. I’m averaging more in the 0.2-0.8 range (I’m […]
C9.25 radius blocks
I knew I should have bought DC925 rails when I was working on Trixie last summer… I went out and stimulated the Astromart economy and now I have a C9.25 but no […]
Re: C9.25 first light
Finder alignment is always a little tricky the first time out. Luckily, I can see M42 in the eyepiece. Or through the camera’s viewfinder, for that matter. I was all pleased with […]
Re: C9.25 first light
I was a little worried about the weight of the new (and larger-aperture) OTA, but since it was a first light, I was running in minimal load mode; just the OTA, a […]
Re: ASTROMART – Response to ad #605811
I got the C9.25 out under the stars last night. Nice optics! I like the tape marks on the dovetail, helped to get it balanced quickly.
C9.25 first light
I first lighted thenew C9.25 last night. Optics seem pretty good. Stars seem decently sharp across the field of an eyepiece (I needed to align the finder, so I needed to use […]
Focuser / Maintenance / Optics
Re: scope getting dialed in
Art Morton wrote: > With a couple more moon nights you will have a perfectly calibrated G-11 I hope so; It really is a lot of new stuff to learn. Someday I’m […]
Re: G-11 re-greasing
Art Morton wrote: > The process for me takes two weeks. And that is if I do not get mad > and just cover it on the bench and try to forget […]
Maintenance / Observing Reports / Optics
Re: RA driftage
Art Morton wrote: > All three of these images are fantastic and show that you are tuning > in. In either case here, your optics are quite good. The stars are > […]
RECENT UPDATE
Polar Alignment Calculations
Here’s a page that derives Polar Alignment Calculations. (update 5/2020: the original site is gone, so I found the text on Wayback and am inserting it below. This is by the original […]
Gear / Observatory / Telescope
Special Guest Star takes the mount at Hilltop O
The Astro Jedi needed somewhere to store his light sab—- I mean, bucket, and I was only too happy to accommodate him. I have decided that I need to come to a […]
General / Maintenance / Observatory
Dome shutter is motorized again!
I finally decided to bite the bullet and fix the shutter motor. Things went sideways last winter, and I’ve been opening the shutter manually (and tying it shut with rope, so we […]
Trixie 2017 – tube mods
I finally got around to cutting the MTA-UTA tubes to length; the only eyepiece that would come to focus with the focuser spacer in place is the Televue 55mm Plossl. If I […]
MOST COMMENTED
Observatory
Observatory 2.0 – Time has come today!
General / Maintenance
First Light, a deeper look
Mount / Observatory / Telescope
Observatory 2.0 – Result!
Observatory
Observatory 2.0 – The Pier goes in
Gear / General / Maintenance
Martin Farmer Wormblock installation notes
Deep Sky / Long Exposure Photography
NGC2244, The Rosette Nebula
Deep Sky / Long Exposure Photography
Another beautiful night.