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"Watermelon tourmaline" Cosmic geode.
This image was photographed under northern skies, at my home in Valencia.
Expanding out across NGC 7822 with mixed refactors on this 3 panel mosaic.
Image credits:
Processing by Swift.
Data acquired by Swift by and a little by Candini
Hope you enjoy this one!

#Astrophotography #Space
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"Exploration"
It's been awhile since I've posted. Lately I've been feeling uninspired. This is my first milkyway shot this year. I'm glad I got a chance to catch it enjoy!

#milkyway
#astrophotography
#monolake
#tufas
#space
#longexposure
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UGC 8335 ~ Interacting Spiral Galaxy
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Abell 30 è una nebulosa planetaria, formata nella fase finale dell'evoluzione di una stella simile al Sole. Si trova nella costellazione del Cancro a circa 5.500 anni luce dalla Terra.
È stata formata dall'interazione iniziale di venti veloci e venti lenti. Il complesso sistema di nuclei visibile in entrambe le immagini corrisponde al materiale recentemente espulso.
L' emissione diffusa a raggi X nell'immagine più grande e nella regione intorno alla sorgente centrale è causata dalle interazioni tra il vento dalla stella e i nodi del materiale espulso. I nodi sono riscaldati ed erosi da questa interazione, producendo emissioni a raggi X.

Immagini Chandra, XMM-Newton, HST and KPNO.
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Galaxy NGC 4845...
This NASA/ESA Hubble Space Telescope image shows the spiral galaxy NGC 4845,located over 65 million light-years (estimated) away in the constellation of Virgo (the Virgin).
The galaxy's orientation clearly reveals the galaxy's striking spiral structure,a flat and dust-mottled disk surrounding a bright galactic bulge.
NGC 4845's glowing center hosts a gigantic version of a Black Hole,known as a supermassive Black Hole.
The presence of a Black Hole in a distant galaxy like NGC 4845 can be inferred fron its effect on the galaxy's innermost stars,these stars experience a strong gravitationnal pull from the Black Hole and whizz around the galaxy's center much faster than otherwise.
From investigating the motion of these central stars,astronomers can estimate the mass of the central Black Hole,for NGC 4845 this is estimated to be hundreds of thousands times heavier than the Sun.
This same technique was also used to discover the supermassive Black Hole at the center of our own Milky Way,Sagittarius A,which hits some four million times the mass of the Sun.
The galactic core of NGC 4845 is not just supermassive,but also super- hungry .
In 2013 researchers were observing another galaxy when they noticed a violent flare at the center of NGC 4845.
The flare came from the central Black Hole tearing up and feeding off an object many times more massive than Jupiter.
A brown dwarf or a large planet simply strayed too close and was devoured be the hungry core of NGC 4845.
Image credit:ESA/Hubble and NASA
S.Smartt (Queen's University Belfast)
Source:European Space Agency/SCI News.
Special effect:ak
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