Assuming the subject in the buy canada goose jacket cheap red

canada goose coats on sale A Thrift Store Find Yields an canada goose clearance Astronomical Mystery canada goose coats on sale

A good mystery is often where cheap Canada Goose you find it. Photographer Meagan Abell recently made a discovery during a thrift store expedition that not only set the internet abuzz, but also contains an interesting astronomical dimension as well. This is an instance where observational astronomy may play a key role in pinning down a date, and we’d like to put this story before the Universe Today community for further insight and consideration.

canada goose uk black friday Meagan first discovered the set of four medium format negatives at a thrift store on Hull Street in Richmond, Virginia. Beyond that, they have no provenance. Meagan was amazed at what see saw when she scanned in the negatives: the images of a woman walking into the surf have an ethereal beauty all their own. Obviously the work of a skilled photographer, the photos appear to date from the late 1940s or 1950s. canada goose uk black friday

Meagan turned to social media for help, and cyber sleuths responded in a big way. FindTheGirlsOnTheNegatives became a viral hit, but thus far, who the women in the images are and the story behind them remains a mystery.

We do know one tantalizing bit of information: several Facebook users have pinned down the location as Dockweiler Beach, California near Los Angeles International Airport. Keen eyed observers noted the similarity of the outline of the distant hills seen to the north in one of the images.

canada goose black friday sale The silhouette of the distant hills above helped readers cinch the location as Dockweiler Beach. Image courtesy of Meagan AbellA few things caught our eye upon reading the mystery of the girls in the negatives this past buy canada goose jacket weekend. One shot clearly shows the notch Canada Goose sale of the Sun just below the twilight horizon. A second, even more intriguing image shows a tiny sliver of Canada Goose online Moon just to the subject’s upper left. canadian goose jacket canada goose black friday sale

canada goose coats Note the orientation and phase of canada goose outlet the waxing crescent Moon Image courtesy of Meagan AbellCould a date, or set of dates, be estimated based on these factors alone? canada goose coats

canada goose clearance sale Let’s slip into astro detective mode now. A few things are obvious right off the bat. First, the Moon is a waxing crescent, meaning the shots would have to be set in canada goose coats on sale the evening. This also lends credence to the ocean being the Pacific, because the sunset is occurring over water. The similarity in cloud formations across all of the images seen also strongly suggests the photographer took all of the pictures on the same evening, during one session. canada goose clearance sale

Can that crescent Moon tell us anything? It’s tiny and indistinct, but we have a few things to go on. The Moon looks to be a 5 6 day old waxing crescent about 30 40% illuminated. Not all waxing crescent Moons are created equal, as the ‘horns of the Moon’ can point in various directions based on the angle of the ecliptic to the local horizon at different times of the year.

A typical sampling of the orientation of the horns of the waxing crescent Moon throughout the year as seen from latitude 34 degrees north. Image credit: Dave DickinsonThe horns of the Moon appear to be oriented about 35 degrees from horizontal. Assuming the subject in the buy canada goose jacket cheap red dress is Canada Goose Outlet elevated slightly and about 20 feet from the observer, the Moon would be about 25 30 degrees above the horizon in the shot.

canada goose store Now, Dockweiler Beach is located at latitude 33 degrees 55′ 20″ north, longitude 118 degrees 26′ 3″ west. The beach itself faces a perpendicular azimuth of 240 degrees Canada Goose Jackets out to sea, or roughly WSW. canada goose store

canada goose uk outlet Already, we can rule out winter and spring, because of the unfavorable angle of the dusk ecliptic. We want a time of year with A) a shallow southward ecliptic and B) a sunset roughly due west. canada goose uk outlet

canada goose factory sale The disk of the Moon is deceptively tiny in an average 35mm frame. Image credit: Dave DickinsonTurns out, late July through early October fit these ideal conditions for the location. canada goose factory sale

Can we narrow this even further? Well, here’s one possibility. Remember, this next step is what gumshoe PIs call a ‘hunch’

Canada Goose Outlet The motion of the Moon is a wonderfully complicated affair. The path of the Moon is inclined about five degrees relative to the ecliptic, meaning that the Moon can ride anywhere from declination 28 degrees south, to 28 canada goose degrees north. From latitude 34 canada goose black friday sale degrees north, this puts the mid July ecliptic at about 33 degrees elevation across the meridian at sunset. Canada Goose Outlet

Canada Goose Jackets The nodal points where the path of the Moon crosses the ecliptic also canada goose deals precess slowly around the celestial sphere. This motion completes one revolution every 18.6 years, meaning that the Moon reaches those maximum declination values (sometimes referred to as a ‘long nights’ or the Major Lunar Standstill of the Moon) just under once every 19 years. Canada Goose Jackets

cheap canada goose uk This occurred last in 2006, and will occur next in 2025. Incidentally, we’re at a shallow mid point (known as a Minor Lunar Standstill) between the two dates this coming Fall. cheap canada goose uk

uk canada goose A good fit? A comparison of the Canada Goose Parka Moon in the image (left) with a simulated view in Stellarium from August 19th, 1950 (click to enlarge). Image credit: Dave Dickinson/Meagan AbellThis also puts the late summer 1st quarter Moon as far south ‘in the weeds’ as possible. Extrapolating back in time, this sort of wide ranging Moon occurred around 1949. Looking at the celestial scene in Stellarium, three dates nail the horn angle and elevation of the Moon seen in the photograph pretty closely around this time: uk canada goose

canada goose clearance Of course, this is just a hunch. Perhaps the subject was standing on a westward facing spit of rocks. Or maybe the photographer was closer or farther away than estimated. Or maybe the negative was inverted left to right along the way that’s why I’d like to invite, you, the astute sky watcher, to weigh in. canada goose clearance

canada goose uk shop And even if we pinned down the date, the mystery remains. Who are the girls in the negatives? canada goose coats What became of the photo shoot? And how did the negatives end up in a thrift store in Virginia? canada goose uk shop

Read another astronomical mystery sleuthed out by Dave Dickinson, with The Downing of Spirit ’03: Did the Moon Play a Role?

cheap Canada Goose Update: an sharp eyed reader noticed that if you boost the contrast, you can see an additional ‘speck’in the Moon image(see comment discussion below): cheap Canada Goose

Update: Meagan responds: “The object along the horizon in the crescent Moon image is actually just a transparency defect.” A second image from the same strip does not show the white speck (arrowed above) near the horizon.

Share this:Click to share on Facebook (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to print (Opens in new window)MoreClick to email this to a friend (Opens in new window)

Interesting I boosted the contrast in the image, and I do see what you talking about. (posted at the bottom of the article) IDing a planet/star in the image would definitely narrow down the dates I not convinced the bright dot isn just an artifact though, as old negatives tend to have lots of blemishes and canada goose store flecks on them. And yes the beach is near an airport.


メールアドレスが公開されることはありません。 * が付いている欄は必須項目です