I finished up the astro season for March with only two more good nights. I sure hope April works better for that. Desert flowers continue to be great. Today, I found a species that I’ve been looking for since I first read about it in my Sonoran Desert Wildflowers book. It has been a target species for several years and I finally found it. Now I need to select a new target.
My target flower, Nemacladus glanduliferous (according to my book, other sources may have different taxonomy). Also known as Redtip Threadstem. What interested me was the diminutive flower, only about 1/8 inch across, a perfect target for my super macro MP-65 lens. As the flowers develop, they rotate 180 degrees, there is no known explanation or purpose for this. This image is taken with the MP-65 lens and a ring flash. Three greenish-yellow glands are on the ovary. The stamens are fused. Why the plant seems to be clasping the stamens and stigma with the two lower petals like this I do not know. Another nice find this morning was Desertsnow, Lenanthus demissus. I’ve only seen this flowering one other time, in the Ajo Mountains. Both times I’ve seen it, I’ve only seen one plant. A closer view of a flower of Desertsnow. NGC 4490, also known as the Cocoon Galaxy, is a barred spiral galaxy in the constellation Canes Venatici. It is about 25 million light years from Earth. It interacts with its smaller companion NGC 4485 and as a result is a starburst galaxy. NGC 4490 and NGC 4485 are collectively known in the Atlas of Peculiar Galaxies as Arp 269. This is another of those very small galaxies that the C8 allows me to image. M66, one of the Leo Triplets. I’ve done this before and just added more exposure. It is a very colorful galaxy. Five supernova have been recorded in this galaxy.
Today I joined up with a group of botanists for a visit to the Sikort Chuapo Mountains. This area is east of Ajo, past the Burro Gap. There are few roads and much of the area is raw wilderness. We drove in on one of the few roads that access that area. Paul and Linda had camped there a few days ago, finding the area loaded with wildflowers. I took a lot of photos, some of the scenery and some of various flowers that I still haven’t identified. Those will have to be posted later, but for now, here is some scenery.
Spires of volcanic rock. Elevations on the tops of the mountains in this area are around 3000 ft. A typical scene, lots of Mexican Poppies, Owl Clover and lupines with Desert Chicory (the white flowers).Poppies on a hillside, lupines lower. More Lupines and Owl Clover and a forest of Chain Cholla in the background. The cholla forest was very impressive, some of the plants are 8 feet high. This large rock has no name on the map, but the locals call it Noah’s Ark. From Ajo, it does look somewhat like an ark but not from this angle. Looking west from a ridge. Look at all those patches of poppies out there! One could walk for miles. Right click on the image and one can see patches of blue too, lupines. One of the flowers I’ve identified, I’ve seen this one many times. Twining Snapdragon. Maurandella antirrhiniflora.
I finally got in a few nights of astrophotography. It is not looking good for more, so I thought I would go ahead and post these. I really like doing galaxies, they are so mysterious and distant, but enormous beyond our imagination. I am sure that somewhere in every galaxy there is intelligent life, but the distances are so great we will never know.
NGC 2903. This field galaxy is located about 30 million light-years away from the Milky Way and is a member of the Virgo Supercluster. A dwarf galaxy is visible below NGC 2903 and the two galaxies are interacting. From Wikipedia: It was discovered by German-born astronomer William Herschel, who cataloged it on November 16, 1784. He mistook it as a double nebula, as did subsequent observers, and it wasn’t until the nineteenth century that the Third Earl of Rosse resolved into a spiral form.M61, another of Charles Messiers “not a comet” objects. From Wikipedia: M61 was first discovered by Barnaba Oriani on May 5, 1779, six days before Charles Messier discovered the same galaxy. Messier had observed it on the same night as Oriani but had mistaken it for a comet. Its distance has been estimated to be 45.61 million light years from the Milky Way Galaxy.This is the Helix Galaxy, NGC 2685. It is about 50,000 light-years across and about 42 million light-years away from Earth. From our perspective, it is very small, faint and difficult to image. But I thought I would try it just to see what it looked like since it is a polar-ring galaxy. It is an object of great scientific interest, because polar-ring galaxies are very rare galaxies. They are thought to form when two galaxies gravitationally interact with each other. In my image, the polar ring is apparent.
The spring bloom is living up to its name. I’m seeing flowers that I haven’t seen for years due to the drought. This spring, the soil is moist and the vegetation lush. Astrophotography isn’t going as well; cloudy nights have really limited that activity. It looks like I might get one or two good nights before the clouds roll back in.
Here’s one of the flowers I haven’t seen for a couple of years. The Ajo Lilies are starting to bloom and there will be a lot of them. Unlike a lot of the desert flowers, many of which are very small, the Ajo Lily is a big and showy flower. This is Alkali Phacelia, Phacelia neglecta. Devil’s Spineflower, Chorizanthe rigida. Most of the year all one sees of this plant is the dried-up stalk. There are tiny yellow flowers hidden in the spines. The white flowers that show on the edges are Mohave Desert Stars, which are extremely abundant right now. Wooly Daisy, Eriophyllum linosum. There are other species of Eriophyllum too, I think this is the correct species but don’t have a comprehensive key to the plants of Arizona so I may have to revise. Pygmy Golden Poppy, Eschscholzia minutiflora. Not as showy as the popular Mexican Poppy, this species is not all that common either. A patch of Mexican Poppies. Here’s a strange plant, a shrub in the Nightshade (Solanaceae) Family. On a recent trip to Quitoboquito Spring, some fellow naturalists and I saw two of these plants in the Senita Basin. Paul Johnson is standing by one of the plants, it is about six feet tall. Known as Sonoran Nightshade, Solanum hindsianum, it is common in Mexico but very rare in the southern Sonoran Desert in Arizona. A closeup of one of the flowers of Sonoran Nightshade. At Quitoboquito Spring, we saw this Variable Sandsnake, only the second one I’ve ever seen. Sonoran Mud Turtles at Quitoboquito Spring. Perry’s Beardtongue, Penstemon parryi.
It is starting, the spring bloom. The diversity is still low, but more and more plants are starting to flower. I expect this will be one of the best spring flower seasons I’ve ever experienced in the Sonoran Desert. I thought I would post a few photos from today.
It has been a long stretch of cool to cold, wet and windy weather. Just a couple of days ago, the area got an inch of rain and some snow on the mountains. However, I think we have finally turned the corner on winter and spring is going to take over. This has certainly been the coldest winter I’ve spent in the Sonoran Desert. I entered eleven photos in the Cabeza Prieta Natural History Association Sonoran Desert Photo Show. I found a good place to get photos printed right here in Ajo so I picked out some of my favorite Sonoran Desert photos. All the entries will be on display for the month of March.
What’s that white stuff? It didn’t last long. Snow on Child’s Mountain. There are more swifts and swallows starting to show up. I still keep trying for a good shot of a White-throated Swift and was rewarded with this one. After one of the recent storms, I checked Lake Ajo and found this Herring Gull on February 22. This is a pretty rare bird for Pima County and some birders were on the way to see it, but it flew off about 30 minutes after I saw it and never returned. I have had absolutely no good weather for astro since my last post. This is M63 that I imaged last spring while at Granite Gap. I spent a lot of time reprocessing this image. I think this version is much improved. Also known as the Sunflower Galaxy.
It has not been very good weather for doing astrophotography, or anything else for that matter. Cloudy, windy, cold, and even wet most of the time. I have only managed a few nights of good astro weather. Birding hasn’t fared much better, but I am able to pick up 25-30 species on a good day. I have now seen at least five different Long-eared Owls in the area. They do not cooperate for good photos.
This is one of those “I did it to see what it would look like” astro images. In the upper left is NGC 2537, also known as the Bear Paw Galaxy. It is a blue, compact dwarf galaxy in the constellation Lynx, about 22 million light years away. The narrow galaxy in the lower right is IC 2233. The two galaxies were once thought to be interacting, but we now know that they are separated by vast distances and not close enough, IC 2233 is probably at least 30-40 million light years out there. There are many other galaxies in the background. Here’s a tighter crop on the Bear Paw Galaxy, one can see how it gets its name (except a bear would actually have 5 toes). Maybe there are 3 toed bear-like creatures on a planet orbiting one the galaxies stars. Or some intelligent life form shooting images of the Milky Way Galaxy and wondering the same things. I’ve imaged the Leo Triplets and each of the three galaxies in the triplet, but this is the first time I’ve tried the Leo Quartet. Each of these galaxies is very small in view, much smaller and fainter than the Leo Triplets. Also known as Hickson 44 galaxy group, these are interacting galaxies. Located in the constellation Leo and about 80 million light years out there. The Tiger’s Eye or NGC 2841. I have imaged this before and am just adding more exposure. Lots of distant background galaxies, none of which show up in Stellarium. NGC 2683, also known as the UFO Galaxy. As with the Tiger’s Eye, I’m just adding more exposure to a previous image. Despite the lousy weather, spring is starting to show, I saw my first Mohave Desert Stars a few days ago. A sure sign of spring!
I went owling a few nights ago. I didn’t expect to get much but I did get what I expected, Western Screech-Owls and Great Horned Owls. I only heard the Great Horned Owls but I played some screech-owl calls and had a pair come in close. The weather has been just about perfect lately. Of course now it is the full moon time and I haven’t been doing any astro. Back when it was still dark enough, I imaged comet ZTF (C/2022 E3) again, this time with the 500 f4, giving a much wider field of view.
Comet ZTF (C/2022 E3) as it appeared awhile back. I imaged this around midnight, giving it enough time rise higher in the sky. I could easily see it in binoculars when the sky was dark but now with the bright moon it would be hard to see. A few more days and it would be worth looking for it again. Lately there has been an invasion of Sage Thrasher. One morning I stepped outside the camper, and I saw one, so I got my camera and bird songs, it didn’t take long before I had three Sage Thrashers right here at camp. I saw two more yesterday. I had two Western Screech-Owls calling and got photos of both. Their plumages are different enough to recognize that they are different birds. It has been a long time since I’ve photographed Western Screech-Owls. It is fun getting out there at night and finding the nocturnal birds.
The last few nights have been clear, cold and good for astrophotography. Just in time for the return of the moon. I’m done for now, having put everything away until the next full moon passes. I suppose I could get up in the early mornings and shoot but it is too cold to make that very enjoyable.
M82, the Cigar Galaxy. I added more exposure to what I had from last year. I think I’m getting close to showing an overprocessed image, trying to show the red tendrils of glowing hydrogen emitting from the core of the starburst galaxy. The Monkeyhead Nebula in Orion. Another one that I’ve imaged in the past and am just adding more exposure to it. Comet ZTF (C/2022 E3) is approaching Earth for a close encounter on Feb. 1st. Right now, it is easily seen in binoculars in the area between the Big Dipper and the Little Dipper. It doesn’t get high enough until nearly midnight, MST. The press has been promoting this a lot as a “the green comet”. Comets in general glow green when near the sun so this one is not unusual at all. What is unusual is the anti-tail, the comet appears to have 3 tails now, the dust tail, ion tail, and an anti-tail. It will continue to brighten and should be easy to see in another 2-3 weeks.
It has been a strange month, starting out cloudy a lot of the time, then rain, now cold. It is cold enough at night to take a lot of the fun out of being outside doing astro. I’m still doing it though. A couple more nights to go then the moon will take over for a while.
I’ve put in parts of three nights doing Thor’s Helmet, again. This time with the C8. I did some pretty fancy processing to make it look this good. I’m starting to think I need new software rather than a new camera!Same with M78. My favorite nebula showing interstellar dust clouds and reflection nebulas, in the constellation Orion. This is the Headphone Nebula, officially Jones-Emberson 1, a very faint planetary nebula in the constellation Lynx. I have wanted to try this one for a long time. Last winter I planned on it but could not even find it, it is far too dim to see in the scope and even long exposures are barely enough to show it. I figured out where it is this winter. At the center is a very blue white dwarf star, leftover from the shedding of the outer layers of gas from the dying star. The Flame Nebula, actually a part of the Horsehead Nebula complex. With the C8 this is about all of the Horsehead Nebula that will fit in the frame. The huge bright star is Alnitak. Alnitak is a blue supergiant with two companion stars, all three appear as one. I took an afternoon hike on Black Mountain and while coming down a steep arroyo I discovered this Desert Bighorn skull. This is certainly the largest ram specimen I’ve seen around here. I’m going to check on the legalities of possessing something like this and if it is OK, I will go back and salvage it.