This time I’ve been dealing with what I though was frost heave but turned out to be expansive clay.
My first sign I noticed was how raised my observatory was as seen here. But also you can see the pier foundation raised so I took a closer look
Here you can clearly see the foundation of the pier lifted as well as the footing of the building itself. This is not good
I using the trust level I removed the mount and checked and it has up to a 1.4 degree tilt now
But even more the entire pier is raised 3″ that white cover over the concrete used to just touch the floor
So I monitored the pier for shifting over a period of a month and contacted a foundation repair company to check out the situtuaion and they said yes it was expansive clay and it had raised and titled it. Expansive clay was common in my area (if I had known that I would have prepared the ground differently) The quoted roughly 3600 to stabilize the pier by driving two piers down to bed rock but they would tear up the observatory flooring and it would be up to me to replace it. Not having 3600 plus floor repairs I had a pass.
I posted on the bisque forum and got some good replies including this is not all that uncommon.
So first step was the re-level the pier which I did as seen here
The slight off center bubble is due to camera angle, it is dead on center bubble.
I then monitored that for a while and there have been minor shifts due to wet/dry times.
Based on that feedback what I will need to do is a full t-point calibration run (the more points the better). after than a normal calibration will account for any further changes to the level of the pier. Good news.
My next task is to redo my thru mount cabling which includes a 3D printed cover for the exit point of the cables to prevent another mouse attack on my Paramount.
So to be continued…
So I wanted to do something so first of all
My weather computer died so i’ve not had an weather updates since October I do plan to fix that.
After that I had back surgery in October so I’ve not been out at all until recently and that was to show my observatory to a friend and made a massive error. I did not close the roof all the way and it rained. no damage to equipment but floor was soaked as well as the rear wall. Thankfully it wasn’t worse.
After things are dry (and should be by now) i want to finish the interior and paint it and get back outside (weather permitting)
Also a note, I do use anti-spam software and if your comments get caught as spam by It I do not review them. I delete them. the amount of posts is surprising but virtually all are spam so no sense in taking a closer look.
Tried to polar align my mount finally and just had issue’s
I’m going to go back out again tonight I hope and try again.
after homing the mount I slewed to Rigel and it was nowhere near where the scope was pointing, it was in the right part of the sky but was many degrees off, this seemed strange, I check my Lat/Long and date/time all where good. went into the TCS control panel and reset all the mount settings and still no good. after several hours and loosing all feeling in my fingertips I gave up for the night and fired up the SBIG ST-i (which I got as a guide camera) and took this shoot. nothing special but at least the camera worked
10 Light Frames @ 90s each and dark subtracted
I had multiple problems with my observatory since my last post
first I had my mount taken over by mice who proceeded to eat through cables, pooh all over the bearings and build nests inside the mount. after over 1K in repair cost. (could have been over 3K but due to Bisques customer service it cost me 1K instead)
I got the mount back in place and found all three of my power systems failed
- electrical failed from the house
- solar failed, inverter blew, which also took the charge controller with it, replaced and then the battery was bad. replaced then the new charge controller kept tripping breakers.
- backup generator would not run consistently
got everything fixed within the last few weeks and all three power sources are again working
solar though is only working with 1 panel instead of 2
got 240v@60amp going to the Observatory now
warm room is actually warm and things are starting to come back online for me
Got the PC and network back up and going. used powerline adapters for network then put an access point in the observatory for wireless out there.
Updated all software
Clouds though tonight prevented any real work outside
Quick post here to get up some images I took tonight
The Rosetta Nebula is a vast cloud of dust and gas, extending over an area of more than 1 degree across, or about 5 times the area covered by the full moon. Its parts have been assigned different NGC numbers: 2237, 2238, 2239, and 2246. Within the nebula, open star cluster NGC 2244 is situated, consisted of the young stars which recently formed from the nebula's material, and the brightest of which make the nebula shine by exciting its atoms to emit radiation. Star formation is still in progress in this vast cloud of interstellar matter; a recent finding of a very young star with a Herbig-Haro type jet by astronomers at the NOAO has been announced in Press Release NOAO 04-03 on January 22, 2004.
The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. The nebula was observed by John Bevis in 1731; it corresponds to a bright supernova recorded by Arab, Chinese and Japanese astronomers in 1054. At X-ray and gamma-ray energies above 30 keV, the Crab is generally the strongest persistent source in the sky, with measured flux extending to above 1012 eV. Located at a distance of about 6,500 light-years (2 kpc) from Earth, the nebula has a diameter of 11 ly (3.4 pc) and expands at a rate of about 1,500 kilometers per second. It is part of the Perseus Arm of the Milky Way Galaxy.
Messier 81 (M81, NGC 3031) in Ursa Major is one of the most conspicuous galaxies in the sky, and one of the nearest beyond the Local Group. It is a conspicuous spiral galaxy.
The Moon is the only natural satellite of the Earth,and the fifth largest satellite in the Solar System. It is the largest natural satellite of a planet in the Solar System relative to the size of its primary, having a quarter the diameter of Earth and 1⁄81 its mass. The Moon is the second densest satellite after Io, a satellite of Jupiter. It is in synchronous rotation with Earth, always showing the same face; the near side is marked with dark volcanic maria among the bright ancient crustal highlands and prominent impact craters. It is the brightest object in the sky after the Sun, although its surface is actually very dark, with a similar reflectance to coal. Its prominence in the sky and its regular cycle of phases have, since ancient times, made the Moon an important cultural influence on language, calendars, art and mythology. The Moon
Spent some time tonight capturing more images of M45 including some basic color as seen here
All Images were done through the AT10RC with the STL-11000M2 Camera. Images are Binned 2×2
First up is a redo of M45 – The Pleiades This is 6 x 360 second exposers @ -20c + 1 x 360 for Red, Green & Blue Stacked and Aligned in MaximDL then touched up In Photoshope CS 4
The Pleiades, also known as Messier 45 (M45), are among those objects which are known since the earliest times. At least 6 member stars are visible to the naked eye, while under moderate conditions this number increases to 9, and under clear dark skies jumps up to more than a dozen (Vehrenberg, in his Atlas of Deep Sky Splendors, mentions that in 1579, well before the invention of the telescope, astronomer Moestlin has correctly drawn 11 Pleiades stars, while Kepler quotes observations of up to 14).
Next is a redo of M37, again more exposer time but no color on this one This is 5 x 360 second exposers @ -20c. Stacked and Aligned in MaximDL then touched up In Photoshope CS 4
Although Messier 37 (M37, NGC 2099) is the brightest of the 3 open clusters in southern Auriga, this cluster was missed by Le Gentil when he rediscovered M36 and M38 in 1749, so that it was to Charles Messier to find this one independently on September 2, 1764. Generally unknown until 1984, all three clusters had been previously recorded by Hodierna before 1654.
Finally Here is something new M33 – “The Triangulum Galaxy” This is 6 x 180 second exposers @ -20c. Stacked and Aligned in MaximDL then touched up In Photoshope CS 4
The Triangulum Galaxy Messier 33 (M33, NGC 598) is another prominent member of the Local Group of galaxies. This galaxy is small compared to its big apparent neighbor, the Andromeda galaxy M31, and to our Milky Way galaxy, but by this more of average size for spiral galaxies in the universe. One of the small Local Group member galaxies, LGS 3, is possibly a satellite of M33, which itself may be a remote but gravitationally bound companion of the Andromeda galaxy M31.
See the Full Images HERE
After spending hours workin on Polar Alignment, PEC and pointing on the Paramount I finally settled in to do some basic imaging. the following are 5-6 minute, unguided exposures thru the AT10RC/STL-11000M
Pixel scale is .92arc/sec per pixel measured through PemPro. Tracking was great but polar alignment is still not quite right.
I just spent a nice cold night out measuring the Periodic Error on my Paramount ME and can say I’m very happy
Assuming I did everything correct I measured my PE at +1.1/-1.5 or just shy of 3 arc/sec peak to peak (2.6arc/sec) and PemPro Shows it can get this down to +0.4/-0.5 arc/sec
I measured for 12 Work Cycles with 1 second exposuser on my AT10RC with a STL-11000M2 Camera MaximDL was driving the Camera and of course TheSkyX the Mount.
Follow the link for more Information and screen pics of PemPro’s screen
I uploaded and posted images of the Construction of the Observatory
Unfortunately, many are missing and hopefully will be found
Wishing Everyone a Happy New Year and Clear Skies