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Copyright © John G. Lidstone, all rights reserved.
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It is an offence, under law, if you remove my copyright marking, and/or post this image anywhere else without my express written permission.
If you do, and I find out, you will be reported for copyright infringement action to the host platform and/or group applicable and you will be barred by me from social media platforms I use.
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36 Light 240 Seconds
40 Dark
40 Flat
40 DarkFlat
Used Camera Settings:
1600 Gain
30 Offsett
-10 °C
Used Equipment:
OTA: Skywatcher 150 PDS
Equatorial Mount: Skywatcher NEQ6-PRO
AutoFocuser: ZWO EAF
Camera: QHY294C
Philters: Optolong l-eXtreme
Guiding Scope: Artesky Superguide 60mm
Guiding Camera: ZWO ASI 120 MM Mini + UV/IR Cut Filter
From Wikipedia, the free encyclopedia (en.wikipedia.org/wiki/IC_443)
"Jellyfish Nebula" redirects here. Not to be confused with jellyfish galaxy.
IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a galactic supernova remnant (SNR) in the constellation Gemini. On the plane of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth.
IC 443 may be the remains of a supernova that occurred 30,000 - 35,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds.
Global properties:
IC 443 is an extended source, having an angular diameter of 50 arcmin (by comparison, the full moon is 30 arcmin across). At the estimated distance of 5,000 ly (1,500 parsec) from Earth, it corresponds to a physical size of roughly 70 light years (20 parsec).
The SNR optical and radio morphology is shell-like (e.g. a prototypical shell-like SNR is SN 1006), consisting of two connected sub-shells with different centers and radii. A third, larger sub-shell—initially attributed to IC 443—is now recognized as a different and older (100,000 years) SNR, called G189.6+3.3.[1]
Notably, IC 443 X-ray morphology is centrally peaked and a very soft X-ray shell is barely visible.[2] Unlike plerion remnants, e.g. the Crab Nebula, the inner X-ray emission is not dominated by the central pulsar wind nebula. It has indeed a thermal origin.[3] IC 443 shows very similar features to the class of mixed morphology[4] SNRs. Both optical and X-ray emission are heavily absorbed by a giant molecular cloud in the foreground, crossing the whole remnant body from northwest to southeast.
The remnant's age is still uncertain. There is some agreement that the progenitor supernova happened between 3,000[3] and 30,000[5] years ago. Recent Chandra[6] and XMM-Newton[7] observations identified a plerion nebula, close to the remnant southern rim. The point source near the apex of the nebula is a neutron star, relic of a SN explosion. The location in a star forming region and the presence of a neutron star favor a Type II supernova, the ultimate fate of a massive star, as the progenitor explosion.
The SNR environment:
The SNR IC 443 is located in the galactic anticenter direction (l=189.1°), close to the galactic plane (b=+3.0°). Many objects lie in the same region of sky: the HII region S249, several young stars (members of the GEM OB1 association), and an older SNR (G189.6+3.3).
The remnant is evolving in a rich and complex environment, which strongly affects its morphology. Multi-wavelength observations show the presence of sharp density gradients and different cloud geometries in the surroundings of IC 443. Massive stars are known to be short lived (roughly 30 million years), ending their life when they are still embedded within the progenitor cloud. The more massive stars (O-type) probably clear the circum-stellar environment by powerful stellar winds or photoionizing radiation. Early B-type stars, with a typical mass between 8 and 12 solar masses, are not capable of this, and they likely interact with the primordial molecular cloud when they explode. Thus, it is not surprising that the SNR IC 443, which is thought to be the aftermath of a stellar explosion, evolved in such a complex environment. For instance, an appreciable fraction of supernova remnants lies close to dense molecular clouds (~50 out of 265 in the Green catalogue[8]), and most of them (~60%) show clear signs of interaction with the adjacent cloud.
X-ray and the optical images are characterized by a dark lane, crossing IC 443 from northwest to southeast. Emission from quiescent molecular gas has been observed toward the same direction,[9] and it is likely due to a giant molecular cloud, located between the remnant and the observer. This is the main source of extinction of the low energy SNR emission.
In the southeast the blast wave is interacting with a very dense (~10,000 cm−3) and clumpy molecular cloud, such that the emitting shocked gas has a ring-like shape. The blast wave has been strongly decelerated by the cloud and is moving with an estimated velocity of roughly 30–40 km s−1.[10] OH (1720 MHz) maser emission, which is a robust tracer of interaction between SNRs and dense molecular clouds, has been detected in this region.[11] A source of gamma-ray radiation[12] is spatially coincident with IC 443 and the maser emission region, though is not well understood whether it is physically associated with the remnant or not.
In the northeast, where the brightest optical filaments are located, the SNR is interacting with a very different environment. The forward shock has encountered a wall of neutral hydrogen (HI), and is propagating into a less dense medium (~10-1,000 cm−3) with a much higher velocity (80–100 km s−1)[10] than in the southern ridge.
In the western region, the shock wave breaks out into a more homogeneous and rarefied medium.
Copyright © John G. Lidstone, all rights reserved.
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It is an offence under law if you remove my copyright marking, or post this image anywhere else without my express written permission.
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Got the mother of all motherboards out again tonight. After zooming in to different parts of last night's shot I decided on this composition for this evening. Tripod swap for the two elements with the non modded Helios 44-2 mounted on the tubes. Board lit from below with torch n vape. Hit it from either side with red and blue gelled torches. Tripod swap to the selective masking using my phone and come black card.
Shot during a single lens capped long exposure with a raw conversion in LR with some minor fetling.
Copyright © John G. Lidstone, all rights reserved.
I hope you enjoy my work and thanks for viewing.
NO use of this image is allowed without my express prior permission and subject to compensation/payment.
I do not want my images linked in Facebook groups.
It is an offence, under law, if you remove my copyright marking, and/or post this image anywhere else without my express written permission.
If you do, and I find out, you will be reported for copyright infringement action to the host platform and/or group applicable and you will be barred by me from social media platforms I use.
The same applies to all of my images.
My ownership & copyright is also embedded in the image metadata.
Copyright © John G. Lidstone, all rights reserved.
I hope you enjoy my work and thanks for viewing.
NO use of this image is allowed without my express prior permission and subject to compensation/payment.
I do not want my images linked in Facebook groups.
It is an offence, under law, if you remove my copyright marking, and/or post this image anywhere else without my express written permission.
If you do, and I find out, you will be reported for copyright infringement action to the host platform and/or group applicable and you will be barred by me from social media platforms I use.
The same applies to all of my images.
My ownership & copyright is also embedded in the image metadata.
Copyright © John G. Lidstone, all rights reserved.
I hope you enjoy my work and thanks for viewing.
NO use of this image is allowed without my express prior permission and subject to compensation/payment.
I do not want my images linked in Facebook groups.
It is an offence, under law, if you remove my copyright marking, and/or post this image anywhere else without my express written permission.
If you do, and I find out, you will be reported for copyright infringement action to the host platform and/or group applicable and you will be barred by me from social media platforms I use.
The same applies to all of my images.
My ownership & copyright is also embedded in the image metadata.
The Luxury of being yourself
We have selected pictures on our website, but can always add more depending on the requests we do get and the current trend in the world of luxury fine art:
We do once in a while have discounted luxury fine art, please do keep checking:
Fine Art Photography Prints & Luxury Wall Art:
We do come up with merchandises over the years, but at the moment we have sold out and will bring them back depending on the demands of our past customers and those we do take on daily across the globe.
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We tend to celebrate light in our pictures. Understanding how light interacts with the camera is paramount to the work we do. The temperature, intensity and source of light can wield different photography effect on the same subject or scene; add ISO, aperture and speed, the camera, the lens type, focal length and filters…the combination is varied ad multi-layered and if you know how to use them all, you will come to appreciate that all lights are useful, even those surrounded by a lot of darkness.
We are guided by three passions, simple but overwhelmingly strong, our longing to capture in print, that which is beautiful, the constant search for the one picture, and constant barrage of new equipment and style of photography. These passions, like great winds, have blown us across the globe in search of the one and we do understand the one we do look for might be this picture right here for someone else out there.
“A concise poem about our work as stated elow
A place without being
a thought without thinking
creatively, two dimensions
suspended animation
possibly a perfect imitation
of what was then to see.
A frozen memory in synthetic colour
or black and white instead,
fantasy dreams in magazines
become imbedded inside my head.
Artistic views
surrealistic hues,
a photographer’s instinctive eye:
for he does as he pleases
up to that point he releases,
then develops a visual high.
- M R Abrahams
Some of the gear we use at William Stone Fine Art are listed here:
Some of our latest work & more!
Embedded galleries within a gallery on various aspects of Photography:
There are other aspects closely related to photography that we do embark on:
All prints though us is put through a rigorous set of quality control standards long before we ever ship it to your front door. We only create gallery-quality images, and you'll receive your print in perfect condition with a lifetime guarantee.
All images on Flickr have been specifically published in a lower grade quality to amber our copyright being infringed. We have 4096x pixel full sized quality on all our photos and any of them could be ordered in high grade museum quality grade and a discount applied if the voucher WS-100 is used. Please contact us:
We do plan future trips and do catalogue our past ones, if you believe there is a beautiful place we have missed, and we are sure there must be many, please do let us know and we will investigate.
In our galleries you will find some amazing fine art photography for sale as limited edition and open edition, gallery quality prints. Only the finest materials and archival methods are used to produce these stunning photographic works of art.
We want to thank you for your interest in our work and thanks for visiting our work on Flickr, we do appreciate you and the contributions you make in furthering our interest in photography and on social media in general, we are mostly out in the field or at an event making people feel luxurious about themselves.
WS-267-49597748-231842565-4942244-2492021234943
In Rotation: Ye-Yo Erykah Badu
www.youtube.com/watch?v=iw1T2g9ZAdk
"I say the sun's in the east and the moon reflects
Like the knowledge and wisdom, I manifest
If you want to go to heaven lay up on my breast
I'm ye yo, you're ye yo
Ye yo, ye yo"
This female Giant Wood Orb Weaver spider (Nephila maculata) has inject digestive juices into her prey, then will extract the butterfly's liquefied organs through her hallow fangs. Half life-size.
Photographed at the Spider Pavilion, Los Angeles County Natural History Museum.
www.nhm.org/site/explore-exhibits/special-exhibits/spider...
This is the largest species of orb weaving spider in the world. Although it is the size of a chocolate chip cookie, it is not in any way dangerous to humans and can be easily approached. The webs that this species constructs are equally impressive. Individual webs can measure up to 10-feet across and are strong enough to catch a small bird.
Hand-held Nikon D90 at ISO 400, Nikkor 105D macro lens, 1/160-sec at f/16; Nikon SB-600 Speedlight with O-Flash 3/4-circle Fresnel prism diffuser diffuser.
Click on photo to view large on black. Press F11 to further enlarge.
copyright © 2009 sean dreilinger
view full service grandma dressing sequoia after his bath - _MG_8473 embed on a black background.