Monthly Archives: March 2023

Irish for a Day

We’ve come through one of the coldest, wettest winters in memory here in Arizona. Donna’s vegetable garden seemed almost dormant at times as the vegetables endured cold nights. Things finally took off near the end of February and she harvested earlier this month.

Snow on the Superstition Mountains, March 2nd

She replanted for her second crop, which we expect will grow much faster as we are enjoying warmer weather and longer days.

Donna’s second planting in her raised vegetable garden bed

She relocated the worm bin when she replanted. The worms are thriving and continue to multiply. The same goes for my second worm colony.

The highlight of the year came on Wednesday, March 15th, when my youngest daughter, Shauna and her husband Gabe came to visit from Bermuda. Of course they had our youngest granddaughter Petra in tow. We picked them up at the airport and they visited while we had snacks and a drink. We met our granddaughter for the first time. We hadn’t visited Bermuda since the COVID lockdown.

Later, I dropped them off at a nearby AirBnb. On Thursday morning, I picked them up again and we drove to west Mesa where Shauna had rented a car through Turo. She picked up a new VW Taos compact SUV. She said the car felt big to her – Bermuda doesn’t have many (any?) full-size cars. Everything is sub-compact there. It’s an island after all with narrow roads.

We came back to Viewpoint and gave them a tour of the grounds. We finished the tour at Fat Willy’s where we enjoyed lunch on the patio. Lucky for us, we claimed a table next to a propane heater – it was a bit chilly with the breeze. I mentioned the unusually cool weather – when they arrived on Wednesday, it was raining and we had a high of just 65 degrees. Thursday was only slightly warmer with a high of 69 degrees.

Donna, Petra and me by the golf course behind Fat Willy’s

Thursday afternoon, they headed west to visit with Shauna’s mother and stepfather in Wickenburg. My oldest daughter Alana and her husband Kevin were already there. They flew down from Washington to meet up with Shauna and Gabe.

Alana and Kevin will come here this afternoon and we’re planning to go out for sushi tonight. Shauna and family will come back to Scottsdale on Monday. They’re meeting friends and will attend a spring training MLB game Monday night. Donna and I will babysit Petra while they’re at the game.

I need to shift gears now and discuss my latest passion – astronomy and, more specifically, astrophotography. When the astronomy bug bit, I spent the first month or so looking at the moon and planets visually through my telescope. Then I decided I wanted to capture the images, not just gaze through an eyepiece. I started with the easiest target – the moon. Then I spent about three months working on Jupiter and Saturn.

Once I had the planetary imaging techniques figured out, I wanted to try my hand at deep sky objects (DSO). I don’t mean to imply that I mastered planetary imaging – far from it. But here’s the thing. Astronomy has seasons – who knew? We are past the optimum time for imaging planets now. The moon is available year ’round except for about a week or so out of every four weeks when it crosses the sky during daylight hours.

The winter is the time of year when nebula imaging hits its stride. Nebulae generally are invisible to the naked eye, but if you know where to point your telescope, they can be found and images can be recorded. The difficulty arises from the distance involved and the dim light they produce.

Our eyes see in real time – that is, whatever photons strike the rods and cones in our eyes are immediately transferred to our brain. A sensor in a digital camera can be used that way or it can be exposed to a particular light source for a longer time and accumulate the light photons, gradually making the resultant image brighter up to a point. It gets tricky when we are talking about deep sky objects that have a wide spectrum of colors and brightness.

Keeping the camera sensor on point for long periods of time requires accurate tracking. The earth is in constant motion. As it rotates, the celestial bodies appear to move across the sky. Modern astrophotography utilizes powerful software and carefully designed telescope mounts to track the object we want to capture.

There’s also the fact that the earth revolves around the sun. Remember, I said astronomy has seasons? That’s why. As the earth reaches different points in the elliptical path around the sun, different parts of our solar system and the universe are in view. The second quarter of the year is known as galaxy season. The earth reaches a point where most of the Milky Way is no longer visible in the night sky, opening up paths to distant galaxies. The summer is planet season. Then we return to nebula time.

Astrophotography, especially DSO astrophotography, is a very difficult hobby. It’s probably one of the most challenging hobbies I’ve encountered. Having said that, I love it. I’m learning so much. There are so many decisions regarding gear, software and which objects to target. There are no absolutes – that is, there’s more than one way to approach the hobby. An inexperienced amateur astronomer will require a few years to really grasp what they need and what works best for them.

My gear is evolving and I found that I need different software for DSO than what I needed for planetary imaging. Like I said, there’s much to learn. I’ve taken up the DSO challenge and I’ve captured a few objects. My first was late in January when I shot an image of the Andromeda Galaxy. In hindsight, it was a marginal effort. I then went after the Pleiades star cluster. I made some improvements there after a few attempts.

At the end of February I tried to capture the Orion Nebula and was moderately successful.

Orion Nebula

This led me to the Horsehead Nebula.

Horsehead Nebula

My final version of the Horsehead came from two sessions. First on March 3rd, I captured 46 sub-exposures of 120 seconds each from our backyard here at Viewpoint. Then, on March 12th, I captured another 44 subs of of 90 seconds each from darker skies at the Weaver’s Needle Viewpoint. I learned how to combine the data collected from the two sessions in AstroPixelProcessor and the result is the image above.

My latest attempt came from our backyard and it’s the Rosette Nebula.

Rosette Nebula

The Rosette Nebula is 5,200 light years away from earth. It’s in the constellation Orion as are the Horsehead and of course the Orion Nebula.

I’ve arranged an outreach event next week for our astronomy club, East Valley Astronomy Club, here at Viewpoint. Members of the club will show up on Wednesday evening and I’ve secured permission to set up on the ball field at the north end of the Viewpoint complex. We’re inviting people to come out and look at the sky through our telescopes.

Yesterday was St. Patrick’s Day. Of course, everyone in the park was Irish for a day. I cleaned up Midget-San – it’s amazing how much dust finds its way under the car cover. I’ve had its battery on a float charger and the gas in the tank was stabilized, so I was confident about it running after spending many months stored on jack stands.

It fired up without any issues! We joined the St. Patrick’s Day parade in it. Donna threw candy to the people lining the streets of Viewpoint and made sure she found kids to toss the candy to. It was fun.

Lining up for the parade
Donna talking with a neighbor, getting ready to join the parade in Midget-San

There was a car show after the parade. I didn’t enter Midget-San because I didn’t want to commit to hanging around all day. I’ve done the car show thing with my old Corvettes in the past and I’m not up to entering anymore. But I like to look around!

Last night, our friends Chuck and Sue Lines came over and joined us for happy hour and dinner. Donna made her usual traditional St. Patrick’s Day dinner of corned beef, cabbage and carrots, champ potatoes and Irish soda bread. And Sue brought a grasshopper pie she made. We had a great time – good food and conversation with good friends. It doesn’t get any better.

As always, Donna keeps fresh cooked, nutritious, delicious meals on our dinner table. Here are few examples from the last couple of weeks. I’ll start with a batch of grilled chicken with tomatoes and corn.

Grilled chicken with tomatoes and corn

For another meal, she prepared braised chicken thighs and peppers over creamy polenta.

Braised chick thighs and peppers over creamy polenta

The next dish was very tasty. It’s garlic butter flank steak pan fried with baby potatoes and fresh herbs. Yummy!

Flank steak with baby potatoes and broccoli on the side

The weather has been much better in the last week, but it looks like we might have a wet, cold snap for a couple of days next week. I hope Wednesday is fair for the event with the astronomy club.

Backyard Bounty

I wrote about buying a new telescope mount in my last post. I ordered a Losmandy GM811G mount from Losmandy in Burbank, California. I wanted this mount for a number of reasons. It’s a proven, reliable design. It’s made in the USA. It’s made from machined aluminum, brass and stainless steel with a minimum of plastic parts. Replacement parts are readily available and support from Losmandy is great. And, unlike the Asian products, it’s been refined over the last 30 years. The Asian gear is obsolete after a few years as they constantly introduce new models on a regular basis.

Having to justify the expense of this equipment to myself, I did a lot of background research on the company and found some interesting stories there. When we were full-time RVers, I always enjoyed meeting people around the country and especially enjoyed success stories from self-employed people that pulled themselves up with hard work and ingenuity. Scott Losmandy falls into that category.

Scott owns and operates a machine shop called Hollywood General Machining (HGM). Under the HGM banner, he has a company called Porta-Jib. Porta-Jib caters to cinematographers and Hollywood movie production companies. Scott designed a track system that is portable and Porta-Jib builds an assortment of carriages that ride on these rails. The carriages are used to smoothly transport movie cameras through the set to film a scene. Some carriages are built to allow the director to be seated or stand while the carriage is raised to different heights so the director can survey the set or the scene being played. Some have articulating arms that can extend or retract cameras to suit the scene. The company is successful and well-known in Hollywood.

Meanwhile, Scott is also an avid amateur astronomer. He was disatisfied with the quality and cost of commercially available telescope mounts. In the late 70s or early 80s, he designed and built one for himself. It wasn’t long before members of his astronomy club wanted to know if he would build one for them. This led to a contract with the Celestron Corporation for Scott to supply them with mounts which they marketed and distributed. He formed the Losmandy Astronomical Products company under HGM. He invented a mounting plate that was sturdier and more rigid than the existing products and he made it universal to fit a large number of telescopes on the market. Today, many companies offer that design and it’s called a Losmandy dovetail plate.

In the 1990s, Scott’s new company broke away from Celestron and he began marketing and distributing the mounts himself. He also has a retail store, most of his sales are online nowadays. He is hands-on and adjusts each mount himself before shipping. Between Porta-Jib and Losmandy Astronomical, Hollywood General Machining is kept busy making parts.

The covid era caused quite a disruption in many manufacturing sectors. Hollywood shut down and movie production stopped. This meant Porta-Jib saw orders fall to almost nothing. Meanwhile, people stuck at home entered hobbies in unprecedented numbers – including astronomy. Losmandy Astronomical Products sales soared to the point of having up to a six-month backlog of orders to fill. By catering to two separate client bases, HGM was able to not only stay afloat, but thrive. Porta-Jib is picking up steam once again and Losmandy has whittled down the lead time for telescope mounts to about four to six weeks. I’m hoping to get a call by the end of next week telling me my mount is shipping.

I’m continuing my astronomical education – I devote hours every day to study. I started with our solar system and planetary/lunar observation, then astrophotography. Then I started learning the constellations and objects in our galaxy (The Milky Way). I’ve even reached out to distant galaxies. The techniques, equipment and software for photographing our solar system versus deep space objects are completely different and require new skillsets. Donna keeps saying that I’ve put in enough hours over the last six months to earn an Associate’s Degree in astrophotography!

We’ve had a pretty miserable winter by Arizona standards with extended cold, wet periods and only short breaks with clear skies and pleasant temperatures. This puts a damper on my astrophotography opportunities, so when they arise I tend to take advantage. Guys up north don’t have much sympathy for us desert dwellers when we complain of cold nights with temperatures dropping to 40 degrees. But to me, these temps feel very cold and I’m freezing when I have to spend hours trying to capture an image of a celestial body.

Cloudy skies can make a spectacular sunset

This week I decided to try my hand at capturing a nebula. Nebulae are fascinating to me and can be very challenging to image. There are five types of nebulae – emission nebulae, reflection nebulae, dark nebulae, planetary nebulae and supernova remnants. The first three listed all have irregular shapes. The planetary and supernova remnants are usually spherical. Planetary nebulae don’t have anything to do with planets – it’s a reference to their shape.

A nebula is mostly made of gases. The predominant gas is hydrogen alpha (Ha) followed by Oxygen III (OIII). Then there are other gases like sulphur and so on. They usually contain a certain amount of space dust as well. The Ha component appears red while the OIII appears blue. Dust can be brownish to almost black – dark nebulae are mostly dust that’s so thick light doesn’t pass through.

Nebulae can be the birthplace of stars. The gases combine into helium and other compounds creating mass. The mass creates a gravitational pull and over a period of millions of years can compress into a star. Supernova remnants are remnants of a dying star. In the final phase of a star’s lifetime, it turns into a red giant or a red dwarf before finally exploding, scattering matter in a swirling ball.

I went for the Orion Nebula (M42) in the constellation Orion. It’s located just below the three stars making up Orion’s belt, in the center of the stars forming Orion’s sword. In dark skies, people with good eyesight can see this nebula as a dim smudge. Most people would mistake it for a dim star. M42 is a considered a good beginner’s target because it’s easy to locate, relatively bright and fairly large. It’s over 1300 light years away from Earth and about 24 light years wide. It’s estimated to be three million years old.

To capture this image, I ran a series of 105-second exposures. I made 50 exposures and kept 49 – I had to discard one because an airplane or satellite crossed in front of my telescope leaving a white streak of light. It took about two and half hours to capture about 86 minutes of data. Processing the data into an image took me several more hours. It’s not the best image of the Orion nebula I’ve seen, but for a beginner’s first attempt, I think it’s more than good enough.

Orion Nebula – Messier catalog number M42

This was taken behind our house with much light pollution and a bright moon. I used a narrow duo-band filter to block unwanted light while allowing Ha and OIII bandwidths to pass. The telescope was my WIlliam Optic Z73 with a ZWO ASI533MC Pro camera.

Donna has almost completely harvested her first growth from the raised vegetable garden bed. She harvested collard greens, broccoli and tomatoes and is ready for round two – more tomatoes, jalapeno peppers, green beans, lettuce, spinach and herbs. She’s also staying busy with tennis and golf and has really upped her tennis game. Later this month, she’ll be rated by the tennis club. The rating process is important – it will determine which league she’s qualified for and what groups she plays with. I’m still coaching my pickleball clinic on Thursdays and playing two or three days a week – weather permitting.

For Valentine’s Day, I bought Donna a special treat – a box of chocolate covered strawberries! She tries to avoid too many sweets, but who can resist chocolate covered strawberries?

Donna hasn’t let up on her culinary skills. She made a couple of new dishes that were home runs in February. First up is a Japanese curry chicken. This took me back to my childhood – my mom made this dish and it was always a favorite.

Japanese curry chicken

Then there was an excellent grilled shrimp and sides of garlicky collard greens and cheesy grits.

Another chicken favorite was this chicken marsala plate.

Chicken marsala with broccoli and fresh bread

Another excellent shrimp dish was this one – it’s called citrus skillet shrimp seasoned with fresh orange from our tree, shallots and jalapenos served with broccoli from our garden. Lots of homegrown bounty.

Citrus skillet shrimp

One more dish – grilled fennel-crusted rack of lamb served with grilled baby bok choy and sweet potato mash.

Fennel crusted rack of lamb

We’re expecting rain this afternoon with a high of only 57 degrees. The rain will continue overnight and into Thursday morning with the cool temperatures hanging around through Friday. By Sunday the forecast calls for 70 degrees. Yay!