The past few days have offered several opportunities for photographing objects in the sky.
Mercury (Magnitude –0.2) and Venus (Magnitude –3.9) are very low in the evening twilight right now and a bit difficult to see with the unaided eye—but a camera can do a better job at picking out the small but bright planets. The two planets are separated by about 7°.
At the same time, Jupiter (Magnitude –2.0) and the Moon made a close pass last night with about 2.5° of separation. These, of course, were much easier to see.
And, a few days ago, the International Space Station (ISS) flew in front of the Sun as seen from my house. I didn’t even have to travel—just set up the camera in the driveway. The entire flyby takes less than one second. Warning! A proper solar filter is required. I use a filter made by Kendrick Astro Instruments.
It’s been an unusual monsoon season across Arizona this year. After both a wet winter and wet spring—with above normal precipitation amounts all the way into the month of May—things went dry. The North American Monsoon started late this year with the first significant rainfall not arriving until the second half of July. This was unfortunate as the dryness partially contributed to a very damaging wildfire (Museum Fire) burning across portions of the San Francisco Peaks.
Just a few days later, the rains finally arrived. And, then, they stopped again. And it has been that way much of this monsoon season. A few days of rain, then a week or more of dry weather. A normal pattern would have rain falling perhaps four days out of seven for a two-month period. Folks around here have dubbed this monsoon the “nonsoon”.
And, of course, with the lack of moisture and thunderstorms opportunities for photographing storms, heavy rain, lightning, and sunsets has been a challenge. But it only takes one great photograph to make it a successful season. I’m still trying to get that photograph.
Here are some of the more interesting photographs from this “nonsoon monsoon” season.
Here are two views of the Moon rising behind Cathedral Rock in Sedona. The first image shows the Moon ~95% illuminated and was taken from the meadows in Crescent Moon Picnic Area. I like how the Moon lies behind the dark pillar located in the gap between two sunlit pillars.
The second image was taken on the following night with the Moon ~98% illuminated and was captured from Pyramid Trail, a location about twice as far away as the first image. This doubling of distance results in the Moon appearing larger relative to Cathedral Rock—a nice illusion.
Most of the time when we hike West Fork Oak Creek we do it from the bottom up. Only once before have we done top-to-bottom and that was back in 1999. We were new to northern Arizona and had read (Tyler Williams, Canyoneering Arizona) that this could be done in very long, hard day. He was right about the long and hard. We have since referred to that epic day as our bootcamp hike.
The passage of time can dim the memories of how hard and unpleasant things were. So here we were in 2019, twenty years later, and we wanted to do this hike again but with some modifications. We were not planning on hiking the entire length of the canyon. Instead, we would simply head down canyon and turn around when we had enough.
It didn’t take long to realize that even this would be a challenge. There is no maintained trail—and not even much of any hint of a trail at all. The vegetation was so thick we had to bushwhack our way through it. Remember that the Slide Fire in 2014 burned through this area (mostly low intensity) and this thick vegetation may be the result of the burn and regrowth. And there was lots of poison ivy. After the first few attempts to get around it we gave up and just plowed through it.
It took us about 2 1/2 hours to reach the first set of narrows about 3 miles down canyon. Just below the narrows is the confluence with Casner Cabin Draw—which ended up being our turnaround spot. We had some commitments that evening so we did not have unlimited time for exploration. Maybe that was a good thing!
I had just been looking at some old photographs from that 1999 hike so I remembered a few locations and took new photographs in the same spots. The tree on the right has grown substantially in 20 years.
We did not encounter any water in the stream bed until the narrows and even then it was a small pool only a few inches deep and a few feet wide.
I’ve also included a photo (a scanned Kodachrome slide) from that 1999 hike showing one of the “must swim” cold pools of water.
We enjoyed the quiet and solitude of the upper canyon.
Most of my Milky Way photographs are shot using a wide-angle (24 or 28 mm focal length), or ultra-wide-angle lens (16 mm focal length). These create an image that shows a large portion of the Milky Way. But sometimes it’s fun to zoom in a bit and focus (no pun intended) on a much smaller section of the sky.
A few days after the full Moon provided a great opportunity to do this. The Moon would not rise until about an hour after astronomical twilight ended and, more importantly, there were very clear skies.
I used a Nikon D750 body with a Nikon 85mm f/1.8 lens for this session. This is designed to be a portrait lens but I find it makes a pretty good astrophotography lens as well because of the excellent light-gathering f/1.8 aperture and the corner-to-corner sharpness resulting in nice round stars. At least, that is, when I get sharp focus and accurate tracking.
I shot 10 images of 120 seconds exposure time and used Long Exposure Noise Reduction (LENR). I was unable to use the 10th exposure because the sky was already getting brighter even though the Moon was still below the horizon. The result was 9×120 seconds or 18 minutes of light gathering.
I have several different applications (both Mac and Windows) for star stacking and alignment and chose to use Starry Sky Stacker this time with good results. Once I had the stack completed I used rnc-color-stretch for histogram stretching with final postprocessing done in Lightroom 6/Photoshop CS6.
This is the final result. I think the colors might be a bit too saturated—but I don’t dislike the result. Artistic license invoked here.