Videos of strange and mysterious objects and other phenomena in the sky

c.a.

The Living Force
FOTCM Member

thorbiorn

The Living Force
FOTCM Member
From Mysterious streak of light appeared in the sky over Vietnam had a translation of an article from Vietnam presumably:

Mysterious streak of light appeared in the sky over Vietnam

Translated from CLIP: Xôn xao vệt sáng lạ xuất hiện trên bầu trời Quảng Ngãi

On the night of October 1st Nguyen NT (living in Tinh Ky Commune, Quang Ngai City) posted a clip on his personal Facebook page with many pictures of a rather strange light streak appearing in the Quang Ngai sky in the afternoon of the day September 29th.

According to Ms. T., the light trail was accidentally recorded by her around 5:30 pm on September 29th. The band is bright red like a shooting star, but it doesn't move.

“A lot of people think that at that time the sun was setting, so there was an image like that. But the image I filmed appeared in the east so it couldn't be said that the sun had already set. The light strip appeared red at first, there was a bright red color. the tail was like a shooting star and then it melted very quickly "- recalls Mrs. T..

Le Thi My (who lives in Quang Ngai City) said he also saw a streak of red light in the sky 3 days ago. It was late afternoon the trail looked like a big shooting star the red light was very beautiful. "Some people think it's a sign of a big storm," My said.

According to Mr. Nham Xuan Sy, Director of Quang Ngai Hydrometeorological Station, with the initial images provided above it is still impossible to conclude anything. "If this image is true, then this is a very strange phenomenon, appearing in the sky for the first time in Quang Ngai," commented Mr. Sy.
The Vietnamese article has three photos and a video:

c7t27_8ed6ba0be84901175858.jpgc7t27_9975a8a8faea13b44afb.jpg961581ab0ddaf6.img.jpg
The first video, I first saw on a Telegram channel Mister_x_1993forever, but fortunately someone uploaded it to Youtube.
 

XPan

The Living Force
From Mysterious streak of light appeared in the sky over Vietnam had a translation of an article from Vietnam presumably:

Mysterious streak of light appeared in the sky over Vietnam


The Vietnamese article has three photos and a video:

View attachment 50398View attachment 50399View attachment 50400
The first video, I first saw on a Telegram channel Mister_x_1993forever, but fortunately someone uploaded it to Youtube.

Spontaneously I would say Crepuscular Rays

A phenomena you occasionally can observe at sunset or sunrise (often when the sun already has set/ or not risen yet), but due to geography (distant mountains) or (most often) caused by distant towering thunderstorm clouds, these optical phenomenas appear. Often pretty, kind of spectacular and unusual.

(3D) Notice:
mobile phones sometimes have a nasty habit of screwing with the tones in a scenery - especially the cheaper ones, but not solely - because they are making the image too contrasty, and overexpose a scenery with bright rays in the sky (or similar).

The limited dynamic range of a tiny sensor, plus the jpg engine in the phone creating "false"colors and transitions in sunset/sunrise photos (Such as creating darker colored rings around an area that is very bright. Like you see in the last photo @thorbiorn posted from the Vietnamese event). A real DSLR camera often gives much better image quality by showing more gentle transitions, more lifelike and closer to what the naked eye sees, if the photographer handles the image files in post processing properly (which means; not screwing around with the contrast too much)

Photo Tip: Another way to capture the scene, even with a mobile phones, would be to underexpose the scenery preferably with RAW, so that the bright rays are not overexposed. Then in post processing, you lift the shadows (making them brighter), in order to accomplish a more true lifelike image, without the nasty artifacts that otherwise appear in the highlights (like in the 3rd and 4th image below, where the rays are totally overexposed, creating strange artifacts in the photo (also called "blown out highlights"), which usually don't not exist to the naked eye.



Here is an example of Crepuscular Rays
from Queensland Australia, published on 27 Jan 2016 by Higgings Storm Chasing

crepuscular-rays-townsville-australia-7.jpg
crepuscular-rays-townsville-australia-6.jpg
crepuscular-rays-townsville-australia-2.jpg
crepuscular-rays-townsville-australia.jpg
 

thorbiorn

The Living Force
FOTCM Member
Spontaneously I would say Crepuscular Rays

A phenomena you occasionally can observe at sunset or sunrise (often when the sun already has set/ or not risen yet), but due to geography (distant mountains) or (most often) caused by distant towering thunderstorm clouds, these optical phenomenas appear. Often pretty, kind of spectacular and unusual.
Thank you for the explanation, and for sharing your knowledge about the sky, camera types and settings. I tried to take a closer look at the situation following your suggestion of Crepuscular Rays.

We learned that:
On the night of October 1st Nguyen NT (living in Tinh Ky Commune, Quang Ngai City) posted a clip on his personal Facebook page with many pictures of a rather strange light streak appearing in the Quang Ngai sky in the afternoon of the day September 29th.
Below is a screenshot from ViaMichelin.fr
Vietnam Tam Ky.png
Knowing the place, I wanted to find out about the Sun. The app called LunaSolCal will give data about the Sun and the Moon. I tried to add Quang Ngai, but it was not in the database, then I tried Tam Ky, which is 60 km to the North, measured on a Yandex map. In the Yandex map, I can play with the ruler and learn that Tam Ky is the equivalent of 50 km straight north and 30 straight west of Quang Ngai. In the app, I can move back in time to September 29 and learn that in Tam Ky the Sun set at 17:36 Indochina Time. This means that in Quang Ngai the Sun would be setting close to the time of 17:30 since:
According to Ms. T., the light trail was accidentally recorded by her around 5:30 pm on September 29th. The band is bright red like a shooting star, but it doesn't move.
The difficulty with the possibility of the phenomenon being crepuscular rays is:
“A lot of people think that at that time the sun was setting, so there was an image like that. But the image I filmed appeared in the east so it couldn't be said that the sun had already set. The light strip appeared red at first, there was a bright red color. the tail was like a shooting star and then it melted very quickly "- recalls Mrs. T..
The Sun sets in the west, but this appeared in the east. If the statement above is true, there is also a phenomenon called anticrepuscular rays:
Anticrepuscular rays, or antisolar rays,[1] are meteorological optical phenomena similar to crepuscular rays, but appear opposite of the Sun in the sky. Anticrepuscular rays are essentially parallel, but appear to converge toward the antisolar point, the vanishing point, due to a visual illusion from linear perspective.[2][3]

Anticrepuscular rays are most frequently visible around sunrise or sunset. This is because the atmospheric light scattering that makes them visible (backscattering) is larger for low angles to the horizon than most other angles. Anticrepuscular rays are dimmer than crepuscular rays because backscattering is less than forward scattering.
If anticrepuscular rays is a possibility, then one can look for images that look similar to what allegedly was recorded in Vietnam, at least if it was close to real. On | EarthSky there is one image that resembles: "Jenney Disimon in Sabah, North Borneo, caught these anticrepuscular rays and a rising moon – and posted them to EarthSky Facebook – on June 4, 2015."
anticrepuscular-rays-Jenney-Disimon-Sabah-N-Borneo-6-4-2015-e1466547579761.jpg
 

XPan

The Living Force
Thank you for the explanation, and for sharing your knowledge about the sky, camera types and settings. I tried to take a closer look at the situation following your suggestion of Crepuscular Rays.

We learned that:

Below is a screenshot from ViaMichelin.fr
View attachment 50426
Knowing the place, I wanted to find out about the Sun. The app called LunaSolCal will give data about the Sun and the Moon. I tried to add Quang Ngai, but it was not in the database, then I tried Tam Ky, which is 60 km to the North, measured on a Yandex map. In the Yandex map, I can play with the ruler and learn that Tam Ky is the equivalent of 50 km straight north and 30 straight west of Quang Ngai. In the app, I can move back in time to September 29 and learn that in Tam Ky the Sun set at 17:36 Indochina Time. This means that in Quang Ngai the Sun would be setting close to the time of 17:30 since:

The difficulty with the possibility of the phenomenon being crepuscular rays is:

The Sun sets in the west, but this appeared in the east. If the statement above is true, there is also a phenomenon called anticrepuscular rays:

If anticrepuscular rays is a possibility, then one can look for images that look similar to what allegedly was recorded in Vietnam, at least if it was close to real. On | EarthSky there is one image that resembles: "Jenney Disimon in Sabah, North Borneo, caught these anticrepuscular rays and a rising moon – and posted them to EarthSky Facebook – on June 4, 2015."
anticrepuscular-rays-Jenney-Disimon-Sabah-N-Borneo-6-4-2015-e1466547579761.jpg
Oh thank you for bringing up the anticrepuscular rays, @thorbiorn - it never crossed my mind (due to lack of knowledge about those type of rays).

So wow 💕 (the beautiful side of networking)

I will now read in more about them, as well looking for more photos (I am curious how to distinguish the opposite types visually) and then see if i have ever seen such anticrepuscular rays myself.

Judging from the last photo you posted, it does in character even more resemble that the Vietnamn phenomena was of anti-crepuscular origin.

Thank you again :flowers:
 
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