The moon is going away and I spent three nights on one dark nebula. I also decided to get out the C8 and try for some planets. It takes awhile to switch systems, so I will probably be using the C8 for a while longer. I’ve always wanted to try imaging a small nebula at prime focus, which in this case is 2032mm, versus 500mm with the Canon lens. That will be a challenge. Planetary is a different story, imaging at over 5000mm but using video and stacking video frames. At those kinds of focal lengths everything is finicky!
This is the first time I have successfully imaged the planet Uranus. I’ve tried before but could never find it in the field of view. It really isn’t worth spending much time on, just a small blue disc in the darkness. However, despite how it looks, it is very challenging, equivalent to imaging an object with a diameter of two inches at 2.5 miles distance. The inset shows the size of Earth compared to Uranus. At an average distance of 1.7 billion miles from Earth, it seems like a long way out there. It took Voyager 2 ten years to get there. In the larger scheme of things in the universe, it isn’t much. This dark nebula contains Sh2-239, a region of star formation glowing in a cloud of cosmic dust, part of the Taurus Molecular Cloud. This region is 450 light years out there, the bright portion in the center spans about three light years. Seeing was very good on this night, and I got one of the most detailed images of Jupiter I’ve ever taken. This is the result of stacking about 8000 video frames. Some call this the boring side of Jupiter (without the Great Red Spot), but a recent event makes it more interesting. Spaceweather.com reported two gigantic (larger than Earth) thunderstorms on Jupiter, in the southern equitorial belt. The remains of the tracks of these storms can be seen in my image, in the upper left of the planet. Read about the storms HERE.
Finally, after over a week of cloudy nights (and just before the new moon), it has been clear every night. Unfortunately, I wasted a lot of that time trying to image a very faint (as in impossibly faint) nebula. I thought that with the nebula booster filter I could do it, but I think I have met my match. I could spend more time on it, but there is no guarantee the results will be any better. What I need is a faster (focal ratio) scope, that’s not likely to happen.
Here it is, Sh2-224, also known as the Rice Hat Nebula. It is a supernova remnant, very faint, in the constellation Auriga. The first night I tried it I found that I had not centered it due to the fact that I cannot see it in my images. I tried to get it centered by looking at star patterns in Stellarium. After that I spent 4 nights shooting this and this is all I can pull out of the stacked images. There are some fine images of this nebula on the internet, typical exposure times are around 40 hours or more, which is more than I’m willing to do. This one was much easier, the Shrimp Nebula, Sh2-188, a dim planetary nebula in Cassiopeia, about 8,000 light years away. I’ve never done this one before and am happy with how it came out. It is small and with the 500 f4 had to be cropped quite a bit but the image held up well. Here’s one I haven’t tried for a couple of years, the Great Andromeda Galaxy. I think the colors came out well for a change. Another old favorite, M45, the Pleiades or Seven Sisters. It is fun to get good results instead of the tedious collecting of data from faint nebula that may not even produce anything. Another bright and easy nebula, the California Nebula. I used the nebula booster filter for this one. And now some birds, here is a Loggerhead Shrike taking a bath. I’ve never photographed one doing this before. The Red-breasted Sapsucker is still here. I find it interesting that it is drilling holes vertically instead of horizontal, like most sapsuckers seem to. Maybe the vertical holes eventually fill in to look horizontal. That seems to be happening at the bottom of the image. An Inca Dove at Bud Walker Park.
I’m still picking up a few new birds for the year list. In the last week, there has been a flurry of activity here, with some birds that are rarely seen in the Sonoran Desert and some that are new to my year list, now at 379 species. When I first got here, sapsuckers were nearly absent, but that has certainly changed in the last few days. It has been a long stretch of cloudy skies too, so astrophotography has come to a complete standstill.
A very nice looking Red-breasted Sapsucker that showed up at the golf course 3 days ago. Yesterday, some birders from Tucson were here to see it. It was still there this morning. A new bird for my year list. Yesterday, Vikki and Lyn Jackson called me over to see this bird, my first of the year Yellow-bellied Sapsucker. Juvenile Yellow-bellied Sapsuckers retain most of their juvenile plumage over the winter while the other sapsucker species molt into adult plumage in the fall. This makes juvenile Yellow-bellied Sapsuckers easy to ID in the late fall and winter. While birding in Bud Walker Park last Sunday, I found this Lapland Longspur, a lost bird. I saw thousands of them while driving through eastern Colorado on my way to Ajo, but in the Sonoran Desert they are very rare.I got a report of an Acorn Woodpecker in Ajo. I’ve never seen one here, this species normally stays in areas with lots of oak trees. The owner of the residence invited me over to see it and maybe get some photos. Another lost bird. Not lost, but there is a significant irruption of Western Bluebirds this fall. The numbers are higher than usual. Last winter there were hardly any around. I got this shot at Bud Walker Park this morning. This morning at the golf course, I saw this Red-tailed Hawk catch a Mourning Dove. The dove’s tail is sticking out below the hawk’s talons. Red-tailed Hawks are very versatile predators. I tried another method of processing and a crop and a rotation of the Flaming Star Nebula. I think this image gives a better impression of flames!A Prairie Falcon that was terrorizing the golf course this morning. There are lots of Gambel’s Quail and it was general panic every time this falcon streaked through the area. I never saw it catch anything.
I have had a few good nights for astrophotography. Now it looks like there will be a period of cloudy nights. I hope it doesn’t last long. The weather has been very nice, although it does get quite cool at night. I’m still picking up a few new birds for the year, but overall birding has been slow. There is still a good chance of getting four or five new birds for my year list but unless I decide to take a trip to the coast (either San Diego or Gulf of California) I don’t think I will get to 400 species for the year.
This is IC 405, the Flaming Star Nebula. I wanted to see what it would look like using the IDAS Nebula Booster filter. I had a difficult time getting the reflection nebula to show up, the filter does not work well for that. So I had to tone down the Ha quite bit and this is the result. IC 405 is about 1500 light years out there and is a big nebula, a frame filler at 500mm focal length. Another nebula I’ve been wanting to use the filter on, IC 63, the Ghosts of Cassiopeia. The bright star is Gamma Cassiopeiae, also known as Navi. NGC 281 (the Pacman Nebula) is perfect for the IDAS Nebula Booster. I really like how this came out. Located in the direction of the constellation Cassiopeia, it is around 9200 light years distant. My latest new bird for the year (number 377), a Varied Thrush at Lake Ajo. This bird has been present for three days now, quite a few people are coming to see it.
I’m sure most readers have heard about the recent comet as it has been all over the news lately, C/2023 A3 ( Tsuchinshan-ATLAS). Apparently it was quite bright for a few days after it emerged from the glow of the sun, but I missed it for a long time due to clouds. Finally, one night I went out and set up my camera, and right on schedule more clouds came in. I could still see it but it wasn’t all that great. Compared to Comet Neowise, I would classify it as a dud! However, this comet did have a nice anti-tail and I was glad to capture that.
Here it is, C/2023 A3 ( Tsuchinshan-ATLAS), photographed through some high clouds. I could see it with the unaided eye on this night. The faint anti-tail is quite apparent. The following night, I tried again. Due to some unforeseen glitches with my camera, the results were not very good, the backgound is blotchy and vignetted. Also, the comet had faded out, I could no longer see it without binoculars. The anti-tail does show up better though. It was very hazy and the bright moon made it difficult. My most exciting bird was this female Bay-breasted Warbler! This is a fairly rare species for our area and I haven’t seen one for many years. It posed for me and I got a lot of nice photos. Here it is again. A Ring-billed Gull playing catch with a crayfish. Here is a Field Sparrow that was feeding on the seeds of Big Bluestem.A Cackling Goose with some Canada Geese, a new bird for the year!And here is my latest new bird for the year, an American Tree Sparrow, species number 358 for the year. Can I make it to 400? I don’t know, maybe.
I had a few pretty good nights, I put in some hours, staying up to around 2 AM. That gave me about 3-4 hours of shooting time each night, assuming everything went smoothly. I lost some time the first night because the guide scope had lost focus and it was difficult getting it back in focus.
I spent most of my time on this, the Crescent Nebula. This is the first time I’ve tried it with the IDAS Nebula Booster filter and it sure made a difference. For the first time I can see the bluish light emitted from oxygen around the nebula. Even better, at the bottom, slightly right of center, is the rarely imaged Soap Bubble Nebula. It wasn’t even discovered until 2007, by an amateur astrophotographer. It is a very faint planetary nebula.
Here’s some info on the Crescent Nebula from Wikipedia:
The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures.This is M16, also known as the Eagle Nebula, which harbors the structures known as the ‘Pillars of Creation”, made famous by photos taken from the Hubble Space Telescope in 1995. I’ve done this before but a long time ago, before I had guiding tools and the new filter. A cropped view with a larger view of the Pillars of Creation. The nebula contains several active star-forming gas and dust regions. The Eagle Nebula lies in the Sagittarius Arm of the Milky Way.
I got up at 4 AM, had my coffee and a sandwich and started the long, slow drive to Pinery Canyon, on the west side of the Chiricahua Mountains. A Crescent-chested Warbler had been seen and photographed yesterday, so I thought I better go look for it. I’ve seen this species before, also in the Chiricahua Mountains so I wasn’t too disappointed not to find it today. I had a great morning! Here’s my eBird checklist. I added seven species to my year list, now at 232 species.
My best bird of the day, a Mexican Spotted Owl. It has been many years since I’ve seen one. It won’t show up on my eBird list because it is considered a sensitive species. A pretty bad photo of a Hermit Warbler, but I was glad to see it!I finally caught up to some Red-faced Warblers too. Photography was not very good for most birds, this is the best I could get. Buff-breasted Flycatcher. Another species I haven’t seen for a long time. Here’s the astro project I’ve been working on. Abell 35 was thought to be an ancient planetary nebula, located about 500 light years away in the constellation Hydra. It was eventually determined that Abell 35 was formed from a binary pair of stars and that the wind from those stars formed the bow-shock feature that can be seen in this image. Abell 35 is moving through space at 10 times the speed of sound giving rise to a shock wave that created the nebula.
There were several things working against me, it is very faint, it stays low on the horizon, and it is small. The C8 would have worked better for size, but at f6.3 and with no duoband filter for that scope, it would haven take many more hours of exposure and even then I don’t think it would be very good. As it was, with the 500 f4 and the IDAS Nebula Booster filter, I have more then 6 hours on this. I think it turned out quite well. The night of May 9, I noticed a glow in a place where there should be no glow. In between Arcturus and Spica, I could see it with the unaided eye. I set up a tripod and camera (I wish I had taken the time to set up the tracker too but didn’t) and got this. I posted it on Spaceweather.com and it wasn’t long before other folks were posting it too. It turns out it was probably a satellite fuel dump, illuminated by the sun. If so, this was at very high altitude. Others who saw it reported from San Pedro de Atacama, Chile, Missouri, and New York state. The sighting from Chile is pretty incredible, it must have been at a very high altitude.
I’m still here, the weather is great and I’m having a good time. I’ve made a few trips to Cave Creek and one trip up to Rustler Park. At Rustler Park, nearly 10,000 ft. elevation, there is still snow in the gullies. I’ve been picking up birds that I haven’t seen for years, only because I haven’t looked for them. I’m at 220 species now, compared to 151 at this time last year.
Grace’s Warbler. These are fairly common in the pines but difficult to get a photo of. I found a nice flock of Mexican Chickadees. In the same area, I got two Olive Warblers, but the photos are not worth showing. On the road down from Rustler Park, I got two Montezuma Quail. Here’s one of them. I have now seen three Gila Monsters in the Granite Gap area. Here’s the third one, just this morning. I put out the black light one night while doing astro. I got some interesting insects. This one is Lineostriastiria hachita, an owlet moth that is rarely reported and almost nothing is known about it. Records are from southeast Arizona, southern New Mexico, west Texas and down into Mexico.Theodore Carpenterworm Moth, Givira theodori. Larvae of this interesting looking moth are wood borers. It has a distribution similar to Lineostriastiria hachita. Catclaw Mimosa, very common around Granite Gap and now in flower. This shrub has recurved spines that catch on clothing when walking through it. Fendler’s Hedgehog Cactus, Echinocereus fendleri ssp. fendleri. There are quite a few in flower now. Caldwell 45, also catalogued as NGC5248. Sixty million light years out there, in the direction of the constellation Bootes.NGC 4414, 62 million light-years away in the constellation Coma Berenices. It is a flocculent spiral galaxy, without the well-defined spiral arms of a grand design spiral galaxy. I should have spent more time on this one but this is what I have. There are lots of small background galaxies in this image.
I am still in Ajo. As long as it doesn’t get too hot, I’m not inclined to leave. I had a few good nights for astro but now the moon is getting bright again. Although the new dual band filter allows me to image nebulas in moonlight, it does not work for galaxies. Light pollution and moonlight are galaxies killers! Dark skies are needed. Birding has remained slow. I do have a few photos to show though.
This is a new one for me, a hybrid Blue-winged Teal X Cinnamon Teal. One can see a partial facial crescent, the white flank mark and spotting of a Blue-winged Teal on the hybrid. The top of the head is greenish on both birds shown here. I never noticed that on a male Cinnamon Teal before but it is there. Not the best of photos, the Ajo sewage ponds are a terrible place for photography. The birds are too far away and shooting is through a chain link fence, not a good combination. I haven’t seen an Elf Owl for several years now, only because I haven’t looked. Last night I decided to go owling and found this Elf Owl. These owls are migratory, I’ve seen them as early as late March, they will get easier to find as the weather warms.A crane fly on a fiddleneck plant. Nothing too special about either one, I just like the photo.M94, sometimes called the Croc’s Eye Galaxy. I tried this years ago before I was guiding, the results were not very good. I also remember seeing that faint nebulosity surrounding the inner galaxy and thinking it must be some kind of processing artifact that I needed to get rid of. It is not, that is real. Rather than repeat everything known about this galaxy, you can read all about it HERE. This is M109, a galaxy not far from M94, in Ursa Major. The most distant identifiable object in the image is the luminous galaxy SDSS J115722.65+531644.3, annotated in white. Its redshift indicates a distance of nearly 3.5 billion light years.Known as the Umbrella Galaxy, NGC 4651 is in the Virgo Galaxy Cluster. The name is due to the umbrella-shaped structure that extends from its disk. It is composed of stellar streams, the remnants of a much smaller galaxy that has been torn apart by NGC 4651’s tidal forces. I really had to push the processing to make that show up!
It has been a very cool spring. I actually had frost on the truck this morning! Normally by now we would be seeing highs in the low 90’s. It looks like that will be coming next week. The Ajo area got another inch of rain too. Birding is starting to pick up, just in the last few days, Franklin’s Gulls, Vaux’s Swift, Swainson’s Hawk, and lots of White-faced Ibis have been showing up. I have a lot of new photos to post.
This is NGC 4216, the Silver Streak Galaxy. I have imaged this before (in 2021, see inset), but I wanted to do it again because of a type Ia supernova that recently occurred. It was actually reported back in January but it is still bright enough to show up. All of the nuclear firepower on Earth would seem like a firecracker compared to this Ia supernova, the explosion of a white dwarf. The supernova is marked with two red lines. This is NGC 4450, a galaxy in the Virgo Cluster, about 50 million light years out there. It is small from our vantage point in the universe, but it is about 70,000 light years in diameter. Here is Comet 12P/Pons-Brooks (2024), again. It is getting low in the west but still high enough to photograph. It is easy to see with binoculars. I used a 200mm lens this time, hoping to get more of the long tail. It didn’t turn out as well as I hoped, probably due to being only about 10 degrees above the horizon and some stiff wind I had to deal with. There was another rocket launch from Vandenberg SFB last week. For this one I used longer focal length (135mm). It worked out very well with the sunset. Right click and open in a new window for a larger view. Mercury is seen just above the exhaust in the center, and the booster can be seen falling away from the rocket in the upper left.In this image the booster is seen in the exhaust plume. Nearer to the rocket are two bright objects that are the jettisoned halves of the protective payload shroud (nose cone), according my message from Launch Alert. It is amazing what can be seen from 500-600 miles away. There is another launch scheduled for tonight. This morning Vikki and I were birding around Highway Tank when we found this Coachwhip. It climbed up into a bush and I got this photo. First one of the spring for both of us! Last week, while watching some gulls at Lake Ajo, I noticed they suddenly went on alert, so I looked up and saw this Peregrine Falcon flying around the ponds. A Lucy’s Warbler at Highway Tank. Also from last week, a Lark Bunting at Highway Tank (there were two of them). First ones I’ve seen all winter and first of spring!This spring there is a lot of this in flower, Eriastrum diffusum, Spreading Woolstar. Dainty Desert Hideseed, Eucrypta micrantha. I could add many more plant photos but this will do for now!
