Exploring the Earth and Sky of the West

Miscellaneous

Comet NEOWISE Appears in the Morning Sky

A comet with a bright nucleus and long tail appears in the pre-dawn sky.

Naked-eye comet alert! Comet C/2020 F3 (NEOWISE), discovered back in March, has brightened to the point where it is visible to the naked-eye in the pre-dawn sky. Both the comet and its tail were easily visible to the naked eye about one hour and fifteen minutes before sunrise this morning:

A comet with a bright nucleus and long tail appears in the pre-dawn sky.

Comet C/2020 F3 (NEOWISE) at 4:05 am PDT on July 8, 2020 from Yakima County, Washington. (Nikon D750, 260mm, f/5.6, ISO 400, 1.6 sec)

This is the first time in ~20 years of skywatching that I can recall seeing a comet and its tail with the naked eye. (Western Washington’s persistent clouds and 49°N latitude stymied my attempts to see Comet PANSTARRS in 2013.) Such comets are relatively uncommon, making it well worth the effort to get up to see this one.

Here’s how to see it yourself:

Look northeast 75-90 minutes before local sunrise. You’ll need a relatively clear horizon in that direction. For most locations in the United States, the comet will be no more than 10 degrees above the horizon at this time. A large tree 200 yards away was enough to block the view of the comet from my patio, forcing me to take a short stroll through the neighborhood to find a better vantage point. The comet is small, but for at least the next few mornings should be readily visible. Here’s a wide field view to give you a better sense of the comet’s apparent size:

A bright comet appears just over the horizon in the pre-dawn sky

Comet C/2020 F3 (NEOWISE) at 4:02 am PDT on July 8, 2020 from Yakima County, Washington. (Nikon D750, 70mm, f/2.8, ISO 400, 1 sec)

Timing is key. My experience is that the comet is best seen about 75-90 minutes before local sunrise. Too much earlier and the comet will be too low in the sky to see clearly. Too much later and the brightening dawn sky will render it invisible. This morning, by about one hour before sunrise, the comet had become much more difficult to pick out and the tail was barely visible to the naked eye. By 45 minutes prior to sunrise, the comet was no longer visible to the naked eye at all (although it was still visible in binoculars or a camera).

Since you’ll be observing in twilight, light pollution conditions shouldn’t make much of a difference here; this comet should be visible even from urban areas, provided you have a clear northeast horizon and time your attempt correctly. A pair of binoculars greatly enhances the view. For more detailed information on viewing Comet NEOWISE, check out https://earthsky.org/space/how-to-see-comet-c2020-f3-neowise

Now for a bit more on what you are seeing and how the comet’s appearance might change over the coming days and weeks: 

Comets are city-sized “dirty snowballs” made mostly of ice and rock. They are leftovers from the formation of our Solar System and orbit the Sun on highly elliptical paths. Comet NEOWISE takes several thousand years to complete one orbit of the Sun. While comets spend most of their time in the cold outer solar system, when they approach the Sun they are heated by solar radiation, causing ices on the comet to begin sublimating (turning from a solid into a gas). This creates a temporary atmosphere surrounding the comet nucleus known as the coma. That’s the bright part of the comet you see in the close-up below. A stream of ionized gas “blown” off the comet by the solar wind can form a tail, while dust particles left behind the comet can form a second tail. As you can see in the close-up, Comet NEOWISE does appear to have two distinct tails at the moment.

Close-up view of a comet with a bright nucleus and a two-pronged tail

A close up of the coma and twin tails of Comet C/2020 F3 (NEOWISE).

NEOWISE made its closest approach to the Sun back on July 3rd and is now on its way back into the outer solar system. Typically, as comets move away from the Sun’s heat, they dim. So far though, NEOWISE appears to be bucking the trend. This is exciting because while the comet is moving away from the Sun, it is moving closer to us. It will reach its closest point to Earth by about July 22nd. If the comet can maintain its brightness for just another week or two, the show could get even better. Now is still the time to look though. The comet will be visible in the morning sky for just a few more days before it disappears into morning twilight. It will reappear in the evening sky by mid-July. Here’s hoping it is still bright enough to see by then. If so, we can all enjoy its presence without having to get up at 3:30 AM!


Top 10 from 2014

As in past years, with the coming of the New Year I decided to take a look back at all the photos I took in 2014 and select some of my favorites to share with you here on the blog. Between finishing graduate school (yippee!) and making a permanent (for now) move from the Pacific Northwest to Colorado, I had less time to devote to photography than in previous years. Nevertheless, picking out my favorite photos was difficult as usual and a good reminder that I was fortunate to have the opportunity to experience and photograph a a number of new places in the past year, from the coasts of Olympic National Park to remote alpine basins in the Rocky Mountains.

Without further ado, here are my ten favorite photos from 2014 in chronological order. Here’s wishing you all a healthy and happy new year!

1. Tulip Fields at Sunset, Skagit Valley Tulip Festival, Washington

Filed at Skagit Valley Tulip Festival

Held annually in April, the Skagit Valley Tulip Festival is a must see for any spring visitor to NW Washington, photography buff or not. On weekends, especially sunny ones, the tulip fields that spread out across the Skagit Valley about an hour north of Seattle are overrun, making photography difficult. Fortunately, I lived only about a half hour away and was able to visit on a less-busy weekday evening in order to photograph the picture-perfect bulbs in their prime and without the crowds.

2. American Bison, Yellowstone National Park

A solitary bison in Yellowstone National Park

I’m going to come clean: this is the only photo on this list taken from the confines of my car! I was departing Yellowstone at the end of an impromptu day-trip to the park while attending a geology conference in Bozeman when I spotted this solitary bison along the road. Fortunately, no vehicles were coming up behind me so I was able to grab my camera and capture the glow of the late afternoon sunlight and the diffuse reflection of the bison in a pool of late-season snow melt.

3. Milky Way, Airglow, and Light Pollution from Hurricane Ridge, Olympic National Park, Washington

Milky Way and airglow from Hurricane Ridge, Olympic National Park

Living near Seattle doesn’t exactly do wonders for one’s chances of observing rare celestial events. What’s one to do? Get above the clouds of course! I was thrilled to be visiting Olympic National Park during the peak of the Cameleopardalids meteor shower in May. In order to get an unobstructed view, we made the drive up to Hurricane Ridge just before midnight in hopes of catching some meteors. As you may recall, the meteor shower fizzled spectacularly but all was not lost: I was able to capture this panorama of the summer Milky Way emerging from the disgusting Seattle light dome (over 50 miles away as the crow flies) as it rose in the west. Despite the light pollution, I also managed to capture the ghostly green glow of an atmospheric phenomenon known as “airglow” (which I’ve written about previously) and the low lying clouds smothering the Elwah River Valley several thousand feet below.

4. Giant Green Anemone (Anthopleura xanthogrammica), Olympic National Park

Close-up of a Giant Green Anemone in Olympic National Park

I developed a slight infatuation with seeking out and photographing marine life during my two years in Western Washington. Timing trips to the coast with some of the lowest tides of the year helped me discover a wide variety of anemones, nudibranchs, sea stars, urchins, and much more. Anemones were perhaps my favorite group to photograph, their neon-colored and delicate tentacles waving back and forth in the surf.

5. Panorama from Hole-in-the-Wall, Rialto Beach, Olympic National Park

Panorama from top of Hole-in-the-Wall, Rialto Beach, Olympic National Park

Rialto Beach is one of the most popular spots in Olympic National Park…for obvious reasons. The short 2-mile hike to Hole-in-the-Wall was one of my favorite experiences this year. Once reaching the famous rock formation, we found an nearly entirely overgrown path that led us up to a viewpoint on the crest of Hole-in-the-Wall, getting us away from the surprisingly scant Memorial Day crowds and immersing us in expansive views of sea stacks, rocks, and islands along the Olympic coast.

6. Summer Wildflowers at Ice Lake, San Juan Mountains, Colorado

Wildflowers at Ice Lake

Despite my ravings about Rialto Beach in the previous photo, our trek to Ice Lake in the San Juan Mountains of Colorado was hands down my favorite hike of the year, and one of my most memorable ever. My only regret about this day was that we weren’t prepared for an overnight (or at least a hike back to the car in the dark!), which means I missed out on what was surely a epic sunset from the basin. Click the link above for more photos of this spectacular place.

7. Ice Lake Panorama, San Juan Mountains, Colorado

Panorama of Ice Lake, San Juan Mountains

Did I mention Ice Lake was spectacular? It snagged two of the coveted spots on the top 10 list. That means you have to go.

8. Circumpolar Star Trails from Escalante Canyon, Colorado

Star Trails from Escalante Canyon

Photographing star trails is a bit more complex in the digital age than it was with film. This was only my second legitimate attempt, but I was happy with how it turned out. Extremely long single exposures suffer from a variety of maladies so this photo is actually a composite of over 100 consecutive 30″ exposures (for the stars), and one 3″ exposure for the foreground juniper which I illuminated with a headlamp. In post-processing, I had the pleasure of removing more than a dozen aircraft which passed overhead during the hour or so it took to gather the series of exposures. I elected not to remove the two meteors (astronomical objects flashing through the frame are fine by me) but I’m looking forward to doing some more star trail photography from places not on major transcontinental flight paths.

9. Exclamation Point, Black Canyon of the Gunnison, Colorado

Black Canyon of the Gunnison from Excalmation Point

I love this photo because it exemplifies how the canyon got its name. Despite being taken at 10 o’clock in the morning, the narrow gorge carved into dark Precambrian metamorphic rocks remained shrouded in shadow, while its surroundings (and portions of the canyon bottom) are basking in the bright, mid-morning sunshine. This photo was taken from an overlook on the remote and seldom visited North Rim of Black Canyon, which offers the most spectacular views into the narrowest portion of this amazing gorge and is truly worth the effort to visit.

10. Waving Aspen and Grasses, Rocky Mountain National Park, Colorado

Waving aspen tree, Rocky Mountain National Park

I didn’t purchase any new camera gear this year, but was the recipient of a 9-stop neutral density filter for my birthday, a filter I’ve been wanting to experiment with for a while now. That filter allowed me to take this photo, a 30″ exposure at f/22 in broad daylight, and capture the motion of a colorful aspen and meadow grasses waving in the wind on a autumn day in Rocky Mountain National Park.

 

 

 


2015 Photography Calendars Now Available!

And now for a bit of shameless self-promotion:

Looking for a holiday gift that doesn’t suck? For the second consecutive year, I’m offering a wall calendar featuring some of my favorite photos from the past 12 months. Mountains, canyons, wildlife, wildflowers…this 2015 calendar has it all! The calendars are spiral bound and available in two sizes, 8.5″x11″ and 11″x14″.

2015_Calendar

Visualize this on your wall…or on the wall of someone you are obligated to buy a Christmas present for!

You can order one by clicking the appropriate button below. All orders will be fulfilled through a secure PayPal link but you do not need a PayPal account to order. Prices include domestic shipping. If you wish to order multiple calendars or have any questions, please contact me by using this link. Discounts on shipping for multiple calendars are available.

As an added bonus, each calendar even comes with a free souvenir electronic receipt/invoice! Try getting that at Wal-Mart!

-Zach

2015 Calendar (8.5″x11″)—$22

2015 Calendar (11″x14″)—$27

2015_wall_calendars