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A.J

General Astronomy/Cosmology Thread

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Apparently another planet ,NASA updates are a bit deflating especially as it's 2100 LY away .

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TESS (the telescope that will likely find a habitable world nearby) has passed it's tests thus far and is on course to begin its mission in the next month.

Here is a test image.

embargo20180518fordisplay4flat8x10300dpi

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Posted (edited)

A picture of earth from 70 million miles away  as the probe  osiris rex   approaches asteroid Bennu    just shows how small we are and how vast space is   Earth and our Moon  left

image.thumb.png.031a2b6a6dc7311b30b84d8935f6e3a4.png

Edited by weirpig

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Been watching the Jupiter Venus conjunction past few mornings, looking SE. Very clear today. Pics from Thurs 17th and today 22nd 

planets.jpg

planets 2210.JPG

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And for Thursday morning, a crescent moon will be visible between the two planets, again low in the SE sky around dawn. Clear skies for many before the cloud and snow head in form the SW

Nice view with clear skies

planetmoona1.JPG

planetmooncnames.jpg

Edited by Jo Farrow
photo from 301st

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https://www.bbc.co.uk/news/science-environment-47873592

"

Astronomers have taken the first ever image of a black hole, which is located in a distant galaxy.

It measures 40 billion km across - three million times the size of the Earth - and has been described by scientists as "a monster".

The black hole is 500 million trillion km away and was photographed by a network of eight telescopes across the world.

Details have been published today in Astrophysical Journal Letters.

Prof Heino Falcke, of Radboud University in the Netherlands, who proposed the experiment, told BBC News that the black hole was found in a galaxy called M87.

"What we see is larger than the size of our entire Solar System," he said.

"It has a mass 6.5 billion times that of the Sun. And it is one of the heaviest black holes that we think exist. It is an absolute monster, the heavyweight champion of black holes in the Universe."

The image shows a intensely bright "ring of fire", as Prof Falcke describes it, surrounding a perfectly circular dark hole. The bright halo is caused by superheated gas falling into the hole. The light is brighter than all the billions of other stars in the galaxy combined - which is why it can be seen at such distance from Earth.

The edge of the dark circle at the centre is the point at which the gas enters the black hole, which is an object that has such a large gravitational pull, not even light can escape.

The image shows an intensely bright "ring of fire", as Prof Falcke describes it, surrounding a perfectly circular dark hole. The bright halo is caused by superheated gas falling into the hole. The light is brighter than all the billions of other stars in the galaxy combined - which is why it can be seen at such distance from Earth.

The edge of the dark circle at the centre is the point at which the gas enters the black hole, which is an object that has such a large gravitational pull, not even light can escape."

https://www.theguardian.com/science/2019/apr/10/black-hole-picture-captured-for-first-time-in-space-breakthrough

 

 

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I'm actually blown away by the image. 

I have had a such a strong fascination of black holes ever since I started collecting Quest magazine in the late 80's. 

I sat and stared at that new picture for a few minutes, just getting my head aroound it. That there, is a shadow of an actual black hole... mind blown!

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