Observatory — Planned and Approved

After a bit of an adventure with the planning department, I have a building permit to build an observatory out in Lake Riverside. I wrote earlier (Regulated! and Regulatory Update) about how Riverside County made us go through a formal process so that we could even apply for the building permit.

The building permit process went much as we expected it. After about a month, the on-line status showed that Building and Safety had looked at it, rejected it and passed it on to Engineering. They had some updates, and our architect took care of those and resubmitted the plans. Then the fun began.

I received a call in early October from Building and Safety. I was told that they “just realized that our property is in a high-fire zone.” Let’s see. The county had the plan through two planning processes since the first week of July. And they “just realized” the fire classification? The net was that I was called the next week and told that the plans were ready but I would need clearance from the Fire Safety Department.

I spoke with the representative in the office. She said she didn’t want me to panic, but the rules stated that there is a 100′ setback rule, mandated by state law, in any high-fire area. I told her that this couldn’t make sense because that would make about 2/3 of my property unusable. She said to come in, an appointment wasn’t necessary. So I worked my schedule to stop at the office in Riverside on the morning of October 17th.

I’ll just cut to the chase. The gentlemen I spoke with that morning basically said that the law is the law and that 100′ setbacks are required in a high-fire area. It didn’t matter that those setbacks would render a 350′ square lot mostly useless. I was a bit upset, but he said that I could set-up time with his boss and we could look at the plans and perhaps a mitigating plan could be put in place. I left in a state of shock. I had spent over three months and almost $4,000 in fees to Riverside County and they were saying there is no way the structure could be permitted.

I met with another contractor the next day. He had been recommended by Dennis McQueary, the plumber who has done a lot of very good work for us. The consensus was that I should go to the Murietta Fire Safety office and see what I could do there.

I arranged my schedule so I could go out there the morning of October 30th. That required driving to Lake Riverside the night before to get there at a reasonable time in the morning. I prepared pictures, printed out Google maps and aerial photos, I had a whole story set up. After all, the law defines “high-fire” as covered in brush and remote from roads. The area around the house is neither. I was ready.

I got to the office, and the person at the desk went to the back to get the fire safety officer. I told him my story. Permit denied, no point in leaving for review, must make an appointment. He asked who had told me I needed an appointment and I told him. He said “let’s look at the plans.” It was straightforward. 280 square feet, next to a gravel drive, about 100′ from 5,000 gallons of water. Het stepped to the next cubicle and I heard the tapping of a keyboard. He returned with a stamp and started stamping and signing each page. The stamp said “approved.” I left the office shortly a very happy man.

At this point, I decided to push it all the way. I went to Riverside and picked up the permit. There were a few other bumps, but they were all cleared within about 90 minutes from when I arrived at the Building and Safety office. I left with approved plans, a building permit, and a job card. Ready to go!

The project isn’t totally a go yet. We still need to have a contractor’s bid that can be built within our budget. I’m keeping my fingers crossed.

Here are some of the details of the planned (and permitted!) observatory. The first image is the floor plan. You can see the large observatory area with room for two telescopes, a good-sized warm room, and a place for the pump equipment.

This next image is the elevation from the east, looking at the entry door to the warm room.

Finally, here is the planned site for the building, next to the existing pump equipment. The rough position is outlined in green.

Regulatory Update

The hearing for the plot plan change was last Monday and it was a non-event from my perspective. Our plot plan change and about 12 others were all approved in one motion in the first five minutes of the meeting. I’m certainly not complaining. We are in the 10-day comment period. I am hopeful there will be no comments.

Since I was at the building department, I filed the construction plans, complete with engineering. They are in plan check now. So we are moving forward.

Regulated!

With a vacation last month, I missed getting this posted, but here’s the news.

The forces of zoning and regulation have slowed progress on the new observatory. When our architect went to file the building permit, he was informed that, because our garage is detached, a plot plan change would need to be submitted. This will require a review by the planning department and a public hearing.

Riverside County instituted a new rule in March of this year to require a more public review on new accessory buildings. Apparently, some people were building large or ugly or view-blocking buildings and neighbors did not have a way to comment or possibly prevent the construction of an inappropriate outbuilding. We got snagged by that rule.

Normally, a building under 400 square feet doesn’t require a plot plan review. However, any second building, regardless of size, does require a review. At 208 square feet, this seems a bit unfair, particularly because the project is subject to Lake Riverside Estates’ CC&Rs, and that includes a review by the Architecture Committee. We are all OK on that front.

So we are now waiting for the next step. The planning department has apparently approved the project from their perspective, and I am waiting to hear what the next step is.

UPDATE August 4, 2008

We’ve been notified that the hearing is next Monday, August 11. I hope that it goes OK.

Step One: The Drive

We have completed the first step of the new observatory project. The driveway at Osage Court has been re-routed and re-graveled, and a parking area has been added near the observatory site. Here is a view looking down the drive to the south. (Click-through requires a login.)


New Driveway

We hope that this re-routing will prevent the problems we have had with erosion. The pipes are the temporary irrigation until the observatory building is completed. The new building will have an equipment room so we can move the pump equipment inside. At that time we’ll also re-do the irrigation so that it is more effective, more reliable, and, most importantly, requires less maintenance.

There was a small problem with the temporary irrigation. An open pipe created a flood, washing down dirt over the lower drive. This was caused because the order of the valves did not match the circuit number on controller. The 2nd, 7th, and 9th valves were used, but the circuits are the 2nd, 6th, and 8th. Yet another slap-dash job by the prior residents here. This caused a bit of anguish, but it is all fixed now.

First CCD Image from Lake Riverside

It has finally been achieved. After almost two years, on April 11, 2008, I took a CCD image from Lake Riverside. This took quite a while because I have a full observatory set-up in Los Angeles. So going to a temporary set-up again was a big leap, even to get to darker skies. After all, I do admit to being lazy.

I got up to LRE on Friday afternoon. There was a good wind blowing from the east, but the weather was otherwise pleasant with the temperature in the low 70s. I took care of the yard chores and as soon as the Sun got low I began taking out the equipment. I wanted to wait for the Sun to be fully down before I took out the OTA (optical tube assembly) since I wanted it to be as cool as possible. I had selected the driveway in front of the garage as my location because it was shielded from the east wind.

There is a fair amount of equipment involved:

  • Tripod, with spanner
  • Mount, with computer assembly, mount proper, and counterweights
  • Telescope (or OTA) with dew shield
  • Focuser (TCF-S), controller box and power supply
  • Dew heater and controller
  • 12 volt power supply for mount and dew heater
  • Camera (ST-10 w/CFW-8 and AO-7) and power supply
  • Table
  • Computer, with power supply and wireless rumblepad to control the mount
  • USB hub with power supply
  • USB to serial adapter (Keyspan)

Once that is all set-up, then I have to connect the mount to the PC. Then software configuration: The Sky to NexRemote, Maxim DL to The Sky, the camera, and the focuser, and Focus Max to the focuser and the Sky. The mount needs to be aligned, polar aligned, and aligned again. This took over an hour.

I had settled on NGC 3628 because it is an interesting object in the southeast sky with an excellent magnitude 7.1 guide star. It took about 45 minutes to get the object framed with the guide star on the guide chip, the scope focused, and the shot set-up. By that time is was 10:25pm and NGC 3628 was going to transit (cross the meridian) at 10:45. I decided to take a couple of 5 minute luminance shots anyway.

I went in the house for a few minutes and when I came back (on the phone with my wife) the wind had come up. Only now it was coming from the northeast, not the east and it was buffeting the mount. Two ruined shots, one I ultimately used. And some despair that the wind would ruin the entire night.

After the meridian flip, I tried to get the “acquire star” functionality in Focus Max to work but it wouldn’t. It did not report an error, it just said that it failed. I got it to plate solve and synch the scope, but not acquire a star. This is really a great focus feature when it works. It will find a near-by star, center the star on the CCD, focus, and return to the object. Excellent automation. This work on Focus Max pushed the time to 11:30, but the wind had subsided.

I set up an imaging run of 12 five minute luminance shots and 4 five minute red, green, and blue images. I then went inside out of the cold, as it had fallen to the low 50s by this point. The wind was mostly calm. I checked the process several times, and everything seemed OK. The bright guide star allowed me to use 0.07 second guide shots, running the AO-7 at about 12 Hz. Then, at about 12:15, the back door banged from a gust of wind. When I went outside, a northeast wind was really coming up. The current image was worthless, the last two prior were lost as well. I decided to end the imaging session.

First, I had to shoot flats. I put a pillow case over the front of the OTA and got my flats with light reflected off of the garage. The wind kept rising, so I began to get a little frantic getting everything taken down. Scope shot down and disconnected, camera disconnected and into the house, cables off, OTA off and into the house, PC inside, counterweights off and into the shop, miscellaneous stuff into the shop, finally, the tripod, mount, and table into the garage. Whew.

By this time it was blowing at least 25 to 35 miles per hour. The rest of the night was very noise as the wind kept up, with gusts over 45 miles an hour. It stayed windy until I left at noon on Saturday.

I ended up with 50 minutes of exposure time. 25 minutes of luminance, 10 minutes of red and green, and 5 minutes (only one shot!) of blue. The RGB shots were binned 2×2. The final result doesn’t have a lot of detail, and it is fairly noisy, but the milestone of the first shot from Lake Riverside has been achieved.

NGC 3628 is a spiral galaxy in the constellation of Leo. It is one of the Leo Triplet group of galaxies. NGC 3628 is about 35 million light years away. You can click on the image for more information.


NGC 3628 - Spiral Galaxy in Leo

Observatory Computer Dead

Just when I had a clear evening without the Moon and on a weekend, the computer in the observatory died forever. It has been having memory issues, but now it is really dead. It boots, starts loading Windows, then reboots during Windows start up. May it rest in peace, it is now just parts.

I have a replacement, but it was slated to go to Lake Riverside. Back to the drawing board.

Perseid Meteor Shower

It has been almost a month and I am finally getting around to writing up the Perseid experience, even as a quickly wrote up Pre-Perseid the day after. This post documents my August 12, 2007 Perseid experience.

My wife and daughters headed home to LA mid-afternoon, as a friend of the family was arriving the next day, too early for a return trip after staying up most of the night as I was planning. I set up out on the patio by the master bedroom. I had a lawn chair, my 12×90 binoculars, a table, and my C-8 (still without drive motors, back to the dark ages!). I also set up my FM2 on a tripod. I had some ISO 160 and ISO 400 professional color print film.

Many people make meteor observing a science, and set themselves up to get many photos, and record accurate meteor counts, etc. That was not my intent. I wanted to see as many meteors as I could, do some visual observing so I wouldn’t go nuts by myself out there, and see if I could get some interesting pictures. I think I succeeded on all accounts. But I did not get a super picture or any real scientific data.

I had everything set-up at about 8:50 pm (all times PDT). I spent the first hour focused on observing, going after globular clusters and double stars. I was using my trusty Celestron guide to the sky. I saw M80, M10, M12, and NGC 6293. I picked out at least 6 double star pairs. This was mixed with meteor watching. There were several bright grazers with long tails during the first hour of observing.

Moving into the 11:00 to midnight hour, the pace of meteors picked up. During that hour, I was fairly dedicated to meteor watching and recording, and saw a Perseid about once every other minute. They would come in bunches and a few non-Perseids were mixed in with the Perseids. I distinguished the non-Perseids based on their direction. The meteor shower is named after constellation that is the are of the apparent source of the meteors. The Perseids come from Perseus, in the northern sky this time of year, just below Cassiopeia. Any meteor that did not move generally from north to south I considered not a Perseid.

There were many bright trails during this hour. Things slowed down around midnight. I took a look at M31, the Andromeda galaxy, and then looked at the Double Cluster in Perseus. It was fantastic, a double clump of stars. Very impressive. The midnight to 1:00am hour was much slower. Only about 20 in the hour — one every several minutes, with this count probably being low because I stepped away several times. At 1:00am I put away the telescope.

After 1:00am the meteors seemed to come in clumps. I’d go several minutes and see none, then get a bunch. I recorded about 45 meteors between 1:00am and 2:30. I went in at 2:30. I know that the more serious observers out there will properly tell me that it was just getting started, but I was too tired to keep looking. I had accomplished my observing goals.

And then there was the camera. I had been trying all sorts of different exposures. I was shooting with a 35mm f1.4 lens. My exposures were a mix of whatever came to mind and when I realized that I had left the shutter open. I also did not look carefully at the f-stop and took a number of shots with the aperture shut down, which makes no sense when you want more light. I caught many planes. There is a major jet pathway that goes more-or-less over Hemet, which is north of us. So from our perspective, they are going over Cahuilla peak. Right where the Perseids would be. I did catch one Perseid.

Perseid over Anza

The meteor is in the upper right of the image. You can clearly see Cassiopeia and make out the Andromeda galaxy in the lower center right. I also got a very nice star trails image.

Star Trails over Anza

I really like the colors in the stars. I will be getting a piggy-back device so that I can take long-exposure very wide-field images without trails. This image has shown me what is possible up there in the mostly dark skies of the Anza valley.

Altogether, a successful meteor shower watch. I now know what to expect and can plan a more professional watching and imaging session for the next shower. Perhaps the Geminids in December. It will be chilly, but it could be nice.

f10 Imaging

Several weeks ago, I finally set up my C-11 OTA, TCF focuser, Pyxis field rotator, AO-7 and ST-10 for imaging at f10. That’s 2880mm with only .5 arc seconds per pixel unbinned on the ST-10. Let’s just say that results were mixed. I’ll admit that seeing wasn’t great, but I don’t think I’ll try this again.

There are some good things about imaging at f10.

  • The AO-7 guides very well. Round stars, no wandering, very nice even at this long focal length.
  • Objects are large with good magnifications (if only they were clear — see below)
  • I could use the Pyxis field rotator with my C-11

But the negatives outweighed the positives.

  • Finding objects was hard. Where a sub-second focus exposre 3x binned would find an object at f6, 1 or more seconds was required for each finding and framing exposure.
  • It was murder trying to get to focus. FocusMax struggled because seeing changed overwhelmed focus changes.
  • It was impossible to find a guide star. With the AstroDon Clear filter, it was a struggle to find a star bright enough to guide at 1-2hz with the AO-7, minimum (in my mind) for decent results at f10.
  • So that was guide stars with the clear filter. Forget color. No object I tried had a guide star in blue that was usable. (Sidebar — NGC 891 – great guide star, available only at f6.)
  • No data. I felt as if I was imaging with an Ha filter. After 5 minutes, the object was hardly brighter than the backgound (100 ADU out of 3500)
  • Fuzzy results. The seeing errors overwhelmed the ability to resolve. All I got were high magnification, blurry results. It reminded me of when I try to use a high magnification eyepiece or a barlow, and, while the result is more magnified, it is not a better image to see or record.
  • It sure makes me wish I had a 20″ Richey Chretien. 🙂

It only took a couple of years, but now I have learned that all of the advice about long focal length imaging is correct. It is really hard and, without great equipment (no, good won’t suffice), it will not produce adequate results.

Here is the result:

NGC 7331 @ f10

So f5.95 with an C-11 is OK, but f10 is not.

The Power of On-line Community

I have become an tremendous fan of on-line discussion groups. I actively participate in several of them, all in Yahoo! Groups.

CGE Uncensored is dedicated to users of the CGE mount from Celestron. There are many knowledgeable people who post to the group. Mike Dodd is a tireless contributor. His complete and accurate posts really make this a great forum for users of the CGE mount. Bud Guinn is another strong contributor. Apologies to those not mentioned. But it is a great group.

The Observatories group is also good, although I have not spent much time there recently. After all, my observatory is built 😉 Marcus (who I always think of as Jato, well OK, JAT Observatory) is a big contributor. And if you are thinking about putting sand in your pier, don’t. Dennis Persyck has shown that sand is irrelevent to pier stability.

The CCD New Astro group is over the top. This is a premier community of the best astrophotographers in the field. It may have a bit fewer postings than the SBIG group, but the SBIG group has way too many posts, most of which are “nice photo….” Certainly acceptable, but still too much traffic to weed out the chaff and get to the content.

SBIG, by the way, makes excellent cameras for astrophotography. I have an ST-10XME with an AO-7 adaptive optics device.

And content is the secret (or is content king?, I forget). The little gems of information that one gets from reading these groups is priceless. The real experience of people who shared is a powerful thing.

Vendor support is great in these forums. You can search, and if you don’t find an answer (or don’t search) it gets answered quickly. If your software or hardware vendor offers support through a forum, use it! It is a great value to you and to the company.

Better products through collaboration!

Fun with Batteries

First, the debacle. “So what” I said, “if the tag says ‘no user serviceable parts.’ I can replace batteries, can’t I?” These statements came as I looked at my now defunct Belkin 900maH UPSs. So I ordered batteries, and proceeded to install them. On reassembly, a few contacts touched, we had a few sparks, no big deal. Discretion being the better part of valor, however, led me to moving the UPS to the garage before I plugged it into the AC power. That was a good thing.

Smoke. Sparks. Quickly, I pulled the plug. So they weren’t kidding about the problems with user servicing. Perhaps the need to bend the case to replace the batteries should have tipped me off.

So here I am with two new 7aH sealed lead-acid batteries. I then I check the old ones with my multi-meter and they seem fine. They took a charge, anyway.

Off to B&B Hardware and Marvac Electronics for parts. The real find was at B&B (of course). A 14 watt halogen floodlight. Just the thing to provide good, bright light to make flats! So the project is this. Build a holder for the batteries and the light. The light will shine against a white surface and from there to the white towel that I use for flats.

OK, why 12 volt-based? Because I have the batteries. It will be portable, low tempurature, low risk. I think. We’ll see.