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#comet

1 post1 participant0 posts today
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Jeff
In my off season this past fall, I decided to go to Kauai and go backpacking all over the island. Coming from Alaska it was quite pleasant to wear shorts constantly and have good fresh fruit everywhere you went. While I was camping on the west side of the island I decided to pull the camera out and get some Milky Way shots. What I totally forgot about was the #comet C/2023 A3 passing by our planet.

The hooting and hollering that I made when I first looked at the image could be heard for miles.

The upper part of the cloud is lit up from the moon rising behind the island creating a very pleasing image.
I am shooting this on a #sony A7iii with a 20mm f1.8 lens. 30” exposure, iso 1250

#milkyway #astrophotography #comet #sonyalpha #kauai #hawaii #beaches #nightsky #ocean #nature #hiking #camping
#camping
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ESO

1/ We have to agree with astronomer David H. Levy here: "Comets are like #cats : they have tails, and they do precisely what they want."

Since you loved the images of #comet C/2024 G3 (ATLAS) that we shared recently, here are some more, taken from our Paranal Observatory in #Chile. This lovely #BlackAndWhite image was taken by our colleague Juan Beltrán, an engineer at Paranal.

➡️ eso.org/public/images/potw2505

📷 J. Beltrán/ESO

This black and white picture shows a small telescope and a large portion of the night sky. At the forefront, the silhouette of a small telescope reveals its small dome and central structure. Besides it stands a man, wearing a hood. The background of the picture shows the night sky, although only a few stars are visible, as well as a few short white strikes which indicate moving objects. The ’star’ of this composition, though, is the comet C/2024 G3 (ATLAS), which covers most of the frame and looks like a giant feather in the sky (or a bushy cat’s tail). The core of the comet (its tip) is bright white, while its tail becomes more diffuse as you go away from the core.
#astrodon#astronomy#astrophysics
Public
Paul Knightly
Comet NEOWISE (C/2020 F3) was the most visible comet to grace the Northern Hemisphere since Comet Hale-Bopp in 1997. I vaguely remember seeing Hale-Bopp as a kid, so being able to see a naked-eye comet of this magnitude was a real treat. This photo was taken in early July 2020 a couple hours away from home, under dark skies in northeast Oklahoma, USA.

This is a composite of about 30 images that I took using a star-tracker, allowing me to zoom in on the comet and move the camera slowly to keep up with Earth's rotation, enabling a clear image. There are some things I would do differently next time, but it speaks to how bright the comet was that even with my settings dialed back I still ended up with blown-out highlights.

#Comet #Astronomy #Space #Astrophotography
Comet NEOWISE arcs through the night sky. It's dual tail is visible reaching to the top of the image frame. The photo is edited to highlight the blue hue of the comet's gas and dust tails.
#astrophotography
Public
rdm

Over the last week I've been going out every couple of nights and shooting C/2024 G3 Atlas as it slowly disintegrates after the front fell off.

Here are a couple more of my Dwarf3 shots, along with one from my phone. One is very heavily processed to bring out the side-tails.

20-50 frames of 15s at 80.

A comet without a head.There are faint secondary tails to the right.
A comet without a head, heavily post-processed to bring out the side tails, which form faint triangles to the right.
A wide-angle shot of the horizon and the sea, with most of the frame taken up with the evening sky. There is still a faint orange glow near the horizon, a long with the glow of the lights of three ships and Wadjemup. Near the middle of the frame is a comet, diving for the horizon.
#dwarf3#c2024g3#Comet
Public
rdm

Went comet chasing last night, got some great technically good shots. And this one. Which I love.

Taken when the comet was less than one degree above the horizon, as it dived into the sea.

A little cloud just rounds things out.

25*15s@80, Dwarf3, post in Snapseed and Google Photos.

An orange yellow comet tail in a blue purple sky, with hints of an out of focus sea below.
#astronomy#photography#astrophotography
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

Comet C/2024 G3 very low in bright evening twilight as seen from the mountains of southern New Mexico at 9,000 feet. (Friday, 17 January)

The comet appears fainter than 24 hours ago:
universeodon.com/@KrajciTom/11

The comet really isn't getting any higher in the northern hemisphere and it's getting fainter. It will now put on its best show in the southern hemisphere...but not for long.

Tonight was very windy. This stack of a few exposures shows how much the trees were swaying in the wind.

The comet, seconds before it sets behind distant conifers. The evening twilight sky is mostly orange with a hint of some blue shading along the top of the frame. A ragged band of clouds stretches across much of the frame, a bit above the comet.
#NewMexico#Comet#Astrophotography
Public
TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

Comet C/2024 G3 very low in bright evening twilight as seen from the mountains of southern New Mexico at 9,000 feet. (Thursday, 16 January)

First photo is the comet as first seen in very bright twilight. 200mm lens, fixed tripod.

Second photo is about seven minutes later, just before it set behind cirrus and trees. 400mm lens.

Third photo is another three minutes later. The comet is gone.

Or is it?

Fourth photo is the third photo, but processed to flatten the sky gradient, converted to grayscale, and a very aggressive contrast boost. Traces of the tail can be seen below the band of cirrus clouds. Perhaps even some faint traces above the band of cirrus?

The comet, surprisingly visible in such bright twilight, is a small streak with its short tail extending up and to the left of the nucleus. The sky is a very bright orange just above the trees, and gradually shades to a rich dark blue along the top of the frame. I am trying to convey in this photo how bright twilight was at this time.
Twilight is darker and the comet is much lower in the sky. This is also a longer telephoto lens compared to the first image, so the comet and distant trees are twice as large. A few slight traces of cirrus are above the comet and to its right. Thicker cirrus are down lower and to the right.
The comet has set, leaving some cirrus in the evening twilight sky. But what if we boost the image contrast? (See the next image....)
This is the third image, but the sky gradient has been flattened, converted to grayscale, and a very aggressive contrast boost has been applied. Below the band of cirrus clouds (now a very dark band because of the contrast boost) traces of the outer tail are obvious. Are there faint traces of the tail above the band of cirrus?
#NewMexico#Comet#Astrophotography
Public
TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

Comet C/2024 G3 very low in bright evening twilight as seen from the mountains of southern New Mexico at 9,000 feet. (Tuesday, 14 January)

At the time of this photo, the sun was about 6 degrees below the horizon (very bright twilight!) and the comet was about 1 to 2 degrees above the horizon.

The second image is a 3x crop of the first.

I never saw the comet with my eyes. I was pointing the camera blind. First image is the complete frame of an APS-C camera and 200mm lens.

The comet, only a minute before it set behind distant conifers that are black silhouettes. The twilight sky is orange and it transitions to a dark blue along the top edge of the frame. The comet's tail points straight up, but is short. Day by day it will get slightly higher in the sky.
This is a 3x crop of the first image.
#NewMexico#Comet#Astrophotography
Replied in thread
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AkaSci 🛰️

Did Comet C/2024 G3 (ATLAS) survive its close flyby of the Sun?

Perhaps, it did.

Here is an image of the Sun's corona taken by the NASA/ESA SOHO spacecraft with Comet C/2024 G3 (ATLAS) in the view, about 15 hours after perihelion.

The image was taken by the Large Angle and Spectrometric COronagraph (LASCO) instrument aboard the NASA/ESA SOHO (Solar and Heliospheric Observatory) spacecraft.

#Comet
soho.nascom.nasa.gov/data/real
5/n

Image of the Sun's corona taken by the NASA/ESA SOHO spacecraft with Comet C/2024 G3 (ATLAS) in the view, about 15 hours after perihelion.
Continued thread
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AkaSci 🛰️

The best vantage point for observing Comet C/2024 G3 (ATLAS) is in space. Which is where astronaut Don Pettit took this stunning photograph from, perched with his camera behind a window in the NASA ISS at ~400 km altitude, on Jan 11.
☄️ 🚀
#Comet #C2024G3
2/n

Pic of comet C/2024 G3 (ATLAS) taken from the ISS. The comet is pointed towards the Sun behind Earth, whose thin atmosphere streaks brightly across the middle of the pic. https://x.com/astro_Pettit/status/1877963226530349168
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