Globular Clusters Galore

This last weekend I had my first chance to do some serious observing from Aguanga. I brought my Celestron 8″ SCT up as a permanent addition to the high desert site. I set the telescope up before it was fully dark. My first target, used to get the finder aligned, was Jupiter. A nice view of the planet and the four Galilean moons. Then I waited for dark.

After it was mostly dark (not fully “astronomical twilight“) I found M57, the Ring Nebula in Lyra. It was a nice pretty ring. I could not see the star at the center.

Using my Celestron sky guide, I looked for good objects in the southern sky. The new house has a great view to the south, something completely lacking in LA. The first and most obvious target was M8, the Lagoon Nebula. Almost as impressive as the nebula in Orion, it was a beautiful wispy sight.

I then turned to the constellation just to the north of Sagittarius, Ophiucus. It has several globular clusters. It straddles the Milky Way, and the globular clusters orbit the Milky Way, so this is a good place to see them. I have always liked observing globulars. Their compact and dense fuzziness, I find them most beautiful. I started in the southern section, looking for what I thought was M9 or M10. Instead, I found M19 and M62. With some help from the star chart, I moved north to find M10 and M12. These were particularly beautiful. Higher above the horizon, I could see foreground stars — really very nice. I’d love to image these object.

Finally, I sought out and found M14. The search showed me several things. The dark of Aguanga is sufficient to see the stars on the chart. I can search the sky with the 8″ SCT. And next time I’ll bring the Telrad. M14 was not as impressive as the others, but it was a good find.

Finally, a complaint. A neighbor to the north has a mercury vapor lamp that is so bright I can see a shadow. with dark-adapted eyes, I feel I could read by the light. Like a full Moon that does not light up the sky, it is a great distraction. A minor annoyance at a great location.

Yard Adventures in Aguanga

Yesterday was yet another day of work in the yard in Aguanga. The effort to maintain 2.5 acres is beginning to sink in. The house in LA is virtually maintenance-free since it has all been recently landscaped and we can have a bi-weekly service come by for a very reasonable costs. Not so in Aguanga.

It started with the plumber’s arrival around 10am. When the LP gas company came by to set up our account, they found that the piping system would not hold pressure, so we were cut off. We have hired a plumber (covered by the home warranty we hope) to fix all the leaks. There are many leaks. The plumber estimates that at least half of the former owner’s gas bill was just leakage! Most of the leaks are new installations (since the last owners purchased) and show the signs of being done by amateur plumbers. There are zig-zagging short sections of pipe with many connections (75% of which leak). Our theory is that the installation was do-it-yourself as all the pipe lengths are off-the-shelf. A plumber would cut pipes to length and thread them. Not so the amateur.

After the plumber left, it was on to mowing the lawn. Last weekend we replaced the blade drive belt. The one the prior owner had on it (we bought the tractor-mower from him) was too short. Installed, it ran two of the three blades backwards. So, with it fixed, I was able to mow the lawn area. No problems here. It had been a couple of weeks, so it took two passes to get it done without bogging down the mower. Bagged the grass and I was done.

Next project: The jungle. On the hill in front of the house, an area of popple (or cottonwood) had been growing up like crazy and had become a jungle. Last weekend we fixed leaks in six of nine irrigation lines in the front. One was a broken pipe in the jungle. I bought a machete on Friday and attacked the jungle. An hour or so later, I had cleared a good portion of the jungle. I found another broken irrigation pipe. All that water was letting the plants grow out of control. There is still more clearing to do. If only I had the right motorized tool — a chainsaw perhaps?

I put a fresh tank of gas into the tractor mower, and thought I would clear some of the weeds out in the larger property. No problem until a wad of wire (that came from ?) went under the blades and wrapped around before I could shut them down. OK, run the tractor up on some boards, lie on the ground and slowly cut the wire away. 45 minutes later it was freed. A quick test run showed that it still cut on all three blades. I did have a scare when I heard a clattering noise. Fearing another wire tangle I looked back and saw a piece of re-bar sticking up out of the group. It is in a large piece of concrete near the gate. What other suprises are out there?

Finally, time for a shower and then off to Mass at Sacred Heart church in Anza. Oh, I forgot to mention checking the spa.

Whew. I was looking for a relaxing second home for observing. I’ll never get the observatory built until this backlog of maintenance gets knocked down. But I did get to observe. More on that in another post.

Check the Numbers, Scientific American

In a recent article in Scientific American, there is a major statistical blunder. In the article, A Great leap in Graphics (subscription required), the author discussed the time it would take to render the images in their recent movie Cars. Sciam wrote “Even with Pixar’s fast network of 3,000 state-of-the-art computers, each second of film took days to render.”

This is absurd on its face. The film is 116 minutes long. If it took “days” and you assume that is merely more than one, that would be 13,920 days or over 38 years. I don’t think it took that long to make the movie.

Days of CPU time (with the reported 3,000 computers) I would buy. But not days per second of elapsed time.

New House Work

We came out to Aguanga last night, leaving LA around 8:10. We stopped at Home Depot for a few items and made it to the house at about 10:40. The clouds had come down so we arrived in a dense fog that lasted most of the night. Within an hour or so things were cooled off in the house for a nice quiet evening.

Today was a day of work, as a new house often is. I took a trip to the local waste transfer station to drop of a bunch of used boxes, then set about cleaning the floor of the workshop. It was (and still is, for that matter) very dirty. It had flooded during a severe storm and there was a layer of dried mud on the floor.

We wet down the floor, scrubbed it, then vacumed up the water. It made a huge difference. The process literally created mud which was then slurped up into the shop vac. We cleaned 2/3 of the space — exactly what we had planned. I then took a mop and plain water and cleaned a section we had already cleaned. I got up a bunch of mud and dirt. I can’t imagine what I would have gotten up if I had used a cleaner.

At any rate, it looks a lot better. It will be very nice once it has been thoroughly cleaned and painted.

Pictures Posted

I have added several photos to the archive today, including a series of M51, the Whirlpool Galaxy. This object was one of the first things that I imaged. I posted my first processing and an updated one I did today. I also posted a decent version of some data that I took in April of 2005. This provides a good comparison both changes in processing and better data acquisition.

The older version of M51 clearly suffers from too little exposure time.
The image is noisy. I was suffering at the time from bad circular
gradients from poor positioning of my focal reducer. The 2005 data
is pretty good in luminance (65 minutes) but short in RGB (30 minutes each).
The RGB also suffers from being taken binned 2×2, a practice I do
not recommend in light polluted locations such as I have here.

Summer Starts with a Bang

It has been over a month since I last posted. And it sure has been a month.

In late June I travelled to Europe for work. Arrived in Paris on Sunday and did the 5-hour tour hitting the Tuilleries, The Louvre (saw the Mona Lisa), Isle St. Louis, Notre Dame, the Left Bank, dinner at Foucquet’s on the Champs-Elysées, a quick view of the Eiffel Tower before heading back to the hotel. Whew. It was good to do some sightseeing because the rest of the week was work. Monday night to Brussels (yes, if it’s Tuesday, it must be Belgium), Tuesday night to Munich, Wednesday night to London, Saturday home.

After two days back at work, we left on vacation to Alaska, taking a wonderful tour and cruise through Cruise West. Our good friend Ken Neibaur arranged the tour — he works for Cardoza Bungey travel. It was a great trip, absolutely way above our expectations. I’ll try and post some details on it later. We took the Glacier Bay Highlights tour with a stay over at the Kantishna Road House. If you go to Denali, I definitely recommend staying at the far end of the park in Kantishna. For cruises, the Cruise West small ships (ours was 70 passengers) is an outstanding way to really see Alaska up close.

We also got to spend a day with my brother-in-law Walt. That was very nice.

Back at work now and finally sneaking in the time to make a post.

Oh, and we closed the purchase of a second home in Aguanga. More on that later too. So we have been busy.

Clouds and Changing Equipment

For a blog (and a site, for that matter) that is supposed to be dedicated to astronomy, there has been precious little astronomy for the last several months.

Back in January, I removed the NP-101 and put the C-11 back on the mount intending to take some longer focal length images. Several factors interfered.

  • Changing Equipment. The effort to re-balance the mount and set-up the whole thing to work with the C-11 instead of the NP-101. Note that the NP-101 set-up was done when I was on an extended vacation between jobs.
  • Weather. Our rain came late and in small batches. Not good for investing the time required for a new set-up and getting good images.
  • Work. New job, new responsibilities, less time for astronomy. And that winning lottery ticket is still very elusive :-).
  • Property Quest. We have been looking at property to be a site for a darker sky site (not really dark as the location has to work as a local “camp” as well as an observatory site) and that has taken significant time.

Enough whining. I have posted some nice shots of Saturn. I have some Jupiter data in the pipeline. The bottom line is that all of these things are about having fun, right?

Out of Disk Space!

It finally happened. After basking in the idea that my local disk space was unlimited, I finally hit the wall.

It started with the computer in the observatory. I was taking AVIs of Jupiter, and it was taking a long time to allocate disk space and then started giving warnings about lack of space. This is a relatively small (80 GB, small by today’s standards, anyway) drive. I started to move older data to the second drive on that machine, a 40 GB drive. Problem solved, I thought.

Not so fast. After a few minutes, I got a warning that the second drive was short on space. The move aborted, I was OK with about 10% free on the working drive. Over full by my standards.

Then things went from bad to worse. Or the problem got broader, anyway. I noticed that my main drive on my main desktop machine, a 160 GB drive, was down to 7 GB. Given that I was moving around 800 MB AVIs, that is full for all practical purposes.

Today I cleaned things up. The Observatory computer is still fairly full, but not critical. I compressed 60 GB of AVIs and freed up about 35 GB. Some AVIs compressed by 96% (small object in a dark sky, no doubt). I did a directory command and sent it to a text file via “>”, created a macro to change the file name into the commands I needed, and it ran for several hours. I am now at 56 GB free, a little over 30%. I have breathing room, but I think the next computer will need a terabyte, and I should get another external drive!

Property

We have been looking at second homes in the Anza Valley area east of Temecula. The goal is to have a place to get away to and one that has dark skies.

Our search narrowed to a community called Lake Riverside Estates. It a gated community (but all dirt streets) with a small lake, a dirt airstrip, and a community pool. While not the darkest location, this clearly meets the multi-use requirement for such an investment.

Not quite Camp, but perhaps a passable Southern California version of Camp.