Tag Archives: nebula

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Dragoon Mountain Ranch – day 1

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March 3, 2019 – Dragoon Mountain Ranch astronomy

2019 Southern Arizona Astronomy

I get up around 7AM and make some coffee, and others soon join me. This is a day with nothing planned, so we can recover from our travel. After everyone is up and have breakfast, some of us walk around the ranch fence line. It is quite pleasant since the weather is cool, clear, and sunny. I fly my DJI Mavic Pro drone this morning, capturing some nice still photos, panoramas and video of my friend’s property.

Aerial of Dragoon Ranch looking NW from Garry's place
Aerial of Dragoon Ranch looking NW from Garry’s place

Some of the group have afternoon naps, but I stay up familiarizing myself with my new Sony a7 III mirrorless camera, in order to get ready for imaging in the dark this evening. I also get my list of targets for the big imaging telescope ready, since the skies are clearing this evening. When it starts to get dark, we go out to the observatory to start an imaging run using a 20″ Newtonian astrograph telescope, and the visual observers setup with their own equipment and also use a 25″ Newtonian telescope.

The procedure for imaging in the observatory uses a script to conduct the imaging runs automatically. After troubleshooting this system for the next hour or so, we successfully get our imaging runs working, which run all night automatically until dawn while we sleep. My target for this evening is the Jellyfish Nebula – a galactic supernova remnant in the constellation Gemini. My observing report

IC 443 Jellyfish Nebula
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Kartchner Caverns & the night sky

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February 24, 2017 Friday – Kartchner Caverns & the night sky at Dragoon Mountain Ranch, Arizona, USA

2017 Southern Arizona & Astronomy

Garry reserved (a few days ago) the Big Room Tour for the Kartchner Caverns for this afternoon. We depart around 1PM so we have time to look around the visitor centre before the tour starts. Unfortunately, photography is not allowed, and they even insist that we leave our cellphones behind in a locker. The tour starts by everyone being taken up the hill in a tram, and then we enter the caverns through a series of doors and air locks. The Big Room is indeed very big, and the history of the caves is interesting, with lots of stalagmites, stalactites, and other cave objects to see. We also learn about the bats who inhabit the cave and use it as a nursery.

On the way back, we go to the Benson Golf Course for dinner. It is a modest place, but the food is good and reasonably priced. This is our last meal together, since we leave tomorrow for home or further travels.

We head back home to do some observing – my last night observing from this special place. We struggle to get focusing working while using the Ha filter, and eventually have to admit defeat. Once the system is restored back to normal settings, I image an object that interests me – NGC 2174, an emission & reflection nebula. I stay inside the house to keep warm while the system takes the images automatically until the series finishes at 2AM. A couple of my astronomy buddies get up at this time to observe Omega Centauri (photo), so I join them to have a look before heading off to bed. My observing report

NGC 2174 emission & reflection nebula
NGC 2174 emission & reflection nebula
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Night sky imaging at Dragoon

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Feb 21, 2017 Monday – Dragoon Mountain Ranch, St. David, Arizona

2017 Southern Arizona & Astronomy

Today is a “down day”, meaning we have no daytime activities planned, so the group can relax and do what they want. I catch up with my social media and email, and work on my journal entries. My blog is still behind – the last entry was for Victoria-Seattle – the first days of my travels, but at least I now have the material to write those blog posts.

It is my turn on the imaging telescope this evening, but when we try to take some flat frames before sunset, the sensor ices up. This means the desiccant inside the CCD camera is saturated with moisture, and needs to be baked so it dries out to make it effective again. Dealing with this issue delays my imaging session of M1 the Crab Nebula by an hour and a half, however I am imaging on the 20” Newtonian Astrograph by 9:20PM and wind up my run just after midnight. Without a doubt, this is my best image of the Crab Nebula. The detail within the object is fantastic, and this is the first time I’ve imaged the green fringe around the nebula! My observing report

RASC Victoria Centre: Joe Carr &emdash; M1 Crab Nebula
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San Jose to La Ensenada Lodge

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Feb 22, 2009 – Sunday – Tour bus from San Jose to La Ensenada Lodge, Gulf of Nicoya

After a sumptuous breakfast at the Courtyard Marriott Hotel, we board the bus and leave for our journey to the Gulf of Nicoya on the Pacific coast of Costa Rica. Unlike last year, the upgrading to this section of the Pan American Highway appears to be finished, so we make good time to our lunch stop at Restaurante Caballo Blanco (the white horse restaurant). As we experienced last year, the meal at this restaurant introduces everyone to the wholesome food Costa Ricans typically prepare for their guests at every meal. Lots of fresh fruit juice, a choice of chicken, beef or fish, vegetables, rice and beans, and a nice dessert to finish. The only downside to this part of the trip is when we find out that our new bus is hermetically sealed, so the engine is kept running the whole time we are in the restaurant in order to keep the cabin from overheating. Some of our group find this to be environmentally irresponsible.

Our guide Jorge tells us a bit about Costa Rica and its people, and what to expect for the next few days as we drive toward La Ensenada Lodge. La Ensenada is as I remember it from last year – a working ranch and farm, raising both cattle, a variety of crops, and produces salt from ocean water. It is about 40 degrees Celsius in the hot afternoon as we arrive, and the owners and staff are on hand to greet us and to give us some cold drinks to sip as we are assigned to our cabins. We are also greeted with howler monkeys and iguanas, our other local residents!

After I have a quick dip in the pool and a shower, and then it is time for dinner. The meal routine for the next few days is: breakfast at 8am, lunch at noon, and dinner at 5pm. We are eating dinner earlier than what is normal for Costa Ricans so we have time to setup equipment and get out on the observing field before it gets too dark. As anyone knows who had travelled to the tropics, the sun sets promptly around 6pm, and it gets dark rapidly.

As noted in my introduction above, there are some clouds covering about 50% of the sky this first night. A fellow Canadian from Calgary brought down one of the biggest telescopes ever used at this event, so I try out his new 15” Obsession Ultra Compact Dobsonian. The views of M42 Orion Nebula are nothing short of astounding – the blue colour was visible in the reflection nebulae, and the view is very bright with lots of detail. For those who either stay up or wake up around 3am, the clouds mostly disappear by then, giving some of us observing opportunities the first night (early morning).