With continued warm and dry weather expected we headed to Durango, Colorado, for a few days of mountain biking and hiking. We already had a few ideas for trails and we figured we’d get more while in town.
On our first day of riding we did the Dry Fork–Colorado Trail–Hoffheins loop with an extension on the Colorado Trail to the local “high point” giving us a total of about 17 miles. There were plenty of wildflowers along the Colorado Trail section along with occasional views of distant peaks. We also saw a family of wild turkey but, as usual, they were easier to see than to photograph.
Our next ride was Lower Hermosa Creek trail. We opted to hire a shuttle to drop us off at the high point. From here, it was a 5-mile downhill cruise on well-maintained Forest Service roads along East Hermosa Creek (and within sight of Purgatory Ski Resort) before hitting the actual trail head for Lower Hermosa Creek. From the trail head it’s about 19 miles to the trail terminus.
Wildflowers were in abundance and water was flowing down the creek. The first third of the trail was a double-track and open to motorized vehicles although we saw none. We stopped often to enjoy the scenery and I took many photos along this section. The middle third was narrow single track with the creek far below us. And the final third may have had more uphill than downhill resulting a lot of HAB (i.e., Hike-a-Bike). Alas, there are no photos from this section—we were too busy trying to ride!
And the final stretch was a fast downhill on gravel and paved roads from the trail terminus to where we had parked our car earlier that morning.
For our final day we decided to put the bikes away and hike up Engineer Mountain from Molas Pass. Our goal was fairly modest; we were not seeking to hike to the summit but only to the wildflower-filled meadows. We were not disappointed with the wildflowers. No, not at all!
With exceptionally clear skies, a waxing cresent moon in the west, and the Milky Way rising in the east it was time to head out and photograph…something wonderful. And so we set out for Wukoki Pueblo in Wupatki National Monument.
Here is what the National Park Service has to say about this structure:
An architect today might win an award for designing Wukoki Pueblo. The corners, angles, and lines of masonry are meticulous. From its base, the eye is drawn skyward to a height that inspires awe of this ancient craftsmanship.
Indeed, the lines of this remarkable structure do draw your eyes upwards to the stars and the Milky Way. How often was this view seen by those who lived here ca. 1100–1200 A.D?
The summer thunderstorm season got off to a slightly early start this year with moisture flowing northward into northern Arizona in late June. A more typical start would be the first or second week of July. However, you won’t get complaints from most folks about the early start as it signals the end of wildfire season.
The highlight this early in the season is this rainbow seen from Yavapai Point on the South Rim of Grand Canyon National Park. The rainbow spans nearly 3/4 of a full circle and contains both primary and secondary bows. Rainbows typically are at least 50% hidden owing to the horizon. Only when the horizon is lower than the observer—e.g., from a mountaintop or over a canyon—will more than 50% be visible.
The North American Monsoon (NAM) is slowly developing across northern Mexico but has not yet spread northward into Arizona. Nonetheless, some tropical moisture moved northward across the state and produced some showers and thunderstorms. In fact, one thunderstorm produced almost 1/2 inch of rain on the southwest side of Flagstaff (including my house!) and the temperature dropped more than 25°F resulting in pleasant conditions.
These storms produced a cool outflow boundary that pushed southward off the Mogollon Rim and into the lower elevations. These outflows can result in new thunderstorms forming over Sedona—one of my favorite places for photographing storms and lightning. And so I headed to Sedona.
The outflow boundary was apparent as a line of shallow cumulus clouds roughly aligned east to west across the area. I selected a spot on Upper Red Rock Crossing Road to shoot towards Cathedral Rock and then waited for lightning.
It was a long wait.
From first test photo to first lighting was a little over an hour. I’m patient but I almost gave up.Then, suddenly, a flash across the sky. Missed it—because I was zoomed in too tight. A moment later—another flash and this one I got. And that was it. No more flashes.
Time to move to another location and shoot twilight colors. I often find myself at the defunct Sedona Cultural Park because it has wide open vistas to the west (at least for now). I arrived as the sun was setting and everyone else was leaving. But the so-called “Blue Hour” can be the best time. If you take long exposures, you can get some really nice colors. I particularly liked this cloud because of the thin streamers of precipitation falling with twilight colors in the background.
A day later and the moisture has moved out of the area resulting in more typical hot, dry days with clear blue skies. Boring.
During the summer months the waxing crescent Moon sets in the west-northwest and lines up with Upper Lake Mary casting a long reflective glow on the water. With this in mind, I set out to capture images of the Moon just two days past new Moon and with only about 6% of the disk directly illuminated. During this lunar phase the dark portion of the Moon is faintly lit by reflected light called Earthshine.
I arrived early and watched the fading colors of sunset then began my wait for the skies to darken. The first image shows the crescent Moon fairly high in the sky with patches of clouds between it and the horizon.
About 45 minutes after the first image I was able to get this photograph as the Moon was approaching the horizon and leaving a long reflective trail across the lake.
A few weeks ago I attempted to photograph the nearly full moon as it rose from behind Cathedral Rock in Sedona, Arizona. On previous shoots of this type, I have used The Photographers Ephemeris (TPE) to determine where I should be located so that the moon will rise between the spires of this rock. My experience with TPE has been very good and typically I only have to make small adjustments to my position to get the perfect alignment.
For this event, I used TPE but I also wanted to test PhotoPills, an iPhone app. One of the features of PhotoPills is AR (“augmented reality”). What AR does is use the phone camera and superimpose the position of the moon and its track on the image seen by the camera.
As I approached my shooting location (as previously determined by TPE), I checked my position using PhotoPills. PhotoPills was telling me that my position needed to change; i.e., that I was already too far south and had to move back to the north. According to PhotoPills, the moon would rise to the south (right) of Cathedral Rocks. I was fairly certain at this point that TPE was right and PhotoPills was wrong.
Here’s where it gets really interesting. In the first photo, the moon has begun to rise to the left (north) of Cathedral Rock. At this time, PhotoPills was still indicating it would rise to the right (south) of Cathedral Rock (i.e., the far right edge of the photo).
That’s a pretty big error.
It turns out that PhotoPills can only be as good as the GPS and compass in the iPhone and those may not be very accurate. PhotoPills should not be blamed for what is an iPhone issue.
As the moon rose, I quickly moved to the south to attempt to get it between the spires but it was rising faster than I could reposition myself and I did not get the photograph that I wanted. That’s fine—as I have done this before and have a few great shots of the moon rising behind Cathedral Rock. (See, for example, Moonrise 1; Moonrise 2)
I’ll be using TPE for my next moon rise photo. I like PhotoPills for some of the other features it has—just not this one.
On Monday, 09 May 2016, Mercury transited the Sun. The transit or passage of Mercury across the face of the Sun is a relatively rare occurrence and there are approximately 13 transits of Mercury each century. The next transit will be in 2019. If you missed this one, you don’t have to wait too long for the next one. But if you miss that one, you will have to wait until 2032 for another chance.
A typical transit lasts several hours. During a transit, Mercury can be seen as a very small black disk moving across the face of the Sun.
The transit was already in progress as the sun rose across the western states. This meant that I could capture an image of the sun with Mercury in transit and have some interesting foregrounds as a dark silhouette. I had hoped to capture images as the sun moved between the spires of Cathedral Rock but the geometry didn’t quite work out. The location with the best alignment also had obstacles in the way. So, on to a second choice. This option had the sun rising from the southern edge of Cathedral Rock.
The first image shows the rising sun with rocks and trees on Cathedral Rock forming a dark silhouette. Mercury can be seen as a faint dark spot just above the outline of the tree.
The second image is a composite of two images taken ~3 hours apart showing the movement of Mercury across the face of the sun. I took photos for about 15–20 minutes after sun rise then put the equipment away so that we could do a trail run in the area. When we returned, the transit was still in progress and I took a few more images — allowing me to create the composite.
Mercury is small. Even with the large (equivalent) focal length, the planet in transit makes only a very small dot in the image. Compare this with Venus, which transited the sun in 2012 and is more easily visible against the disk of the sun.
The next few transits of Mercury are in 2019, 2032, and 2039. The next transit of Venus is in 2117. Yes, 2117! So I’m happy to have seen the Venus transit in 2012 and the Mercury transit in 2016. They are more rare than total eclipses of the sun. The next total eclipse of the sun across North America is 2017.
This is a composite of two images. The first was taken of Cathedral Rock as the moon was setting in the west. An exposure of 120 seconds at ISO 400 and an aperture of f/4 was used. The second image was taken a short time later after the moon had set allowing the fainter stars in the night sky to appear. This image was 8 minutes at ISO 400 and an aperture of f/4. To prevent streaking of the stars an iOptron Sky Tracker was used. The two images were then blended together.
There will be several more opportunities during the spring and early summer for images like this as the moon sets in the west and the Milky Way rises in the east.
As twilight began in the east and the stars began to fade I switched lenses to a short telephoto to zoom in on Rho Ophiuchi to better show the dark dust present in this nebula. This is a 120-second exposure at f/2.8 and ISO 400 using an 85 mm lens.
Orion is one of the most conspicuous and recognizable constellations in the night sky. It was named after Orion, a hunter in Greek mythology. Its brightest stars are Rigel (Beta Orionis) and Betelgeuse (Alpha Orionis), a blue-white and a red supergiant, respectively.
Hanging from Orion’s belt is his sword which contains the Orion Nebula, also known as M42. This is a spectacular object that can be clearly identified with the naked eye as something other than a star. It is one of the most easily photographed Deep Sky Objects and can be captured by most modern digital cameras.
The first image of Orion was taken last winter on an evening with a very thin layer of high clouds. This cloudiness was enough to cause a beautiful glow around the brighter stars in the constellation. Some nebulosity is visible in both the belt and sword of Orion. (Nikon D700, ISO 1600, f/5.6, 120 seconds, 80mm).
The second image was taken this spring (Nikon D700, ISO 1600, f/4, 10x120s, 200mm) and is zoomed/cropped on the Orion Nebula (M42).
I recently heard someone say that a reasonable goal of astrophotography is not so much to produce the best image, but to produce a better image than your previous best. In this case, I can claim some success.
And, for comparisons sake, here is a richly detailed image of the Orion Nebula captured by the Hubble Telescope and posted on the Astronomy Photo of the Day (APOD) site.
Winter is fading away in the higher elevations of northern Arizona. Snow has melted across much of the area allowing the trails to be used again for walking, running, and, especially, mountain biking. While the trails were covered in snow this winter we did most of our mountain biking in Sedona. Although snow does fall there, it rarely lasts long. Here are a few photographs from Sedona mountain biking this winter.