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An image created by the NASA visualisation studio of what a lunar eclipse would look like from the surface of the moon! Pretty cool right? If you want to get a better understanding of what is happening and why, you can checkout this article HERE which goes into the theory behind it all and also shows you what a solar eclipse would look like from the surface of the moon.
M87 galaxy with the relativistic jet fired from the super massive black hole 27/02/2017 01:19
(55.000.000 light years)
GSO 0.20 m
Sky-Watcher NEQ-5 Pro SynScan mount
QHY5L-IIC + IR cut filter
f: 1000 mm
Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/
I have a question, imagine a Galaxy with a supermassive black hole smack in the middle, with a mass of a billion suns, devowering stars at an incredible rate and relatively growing as it consumes stars.
A black hole that large in the center of our galaxy, “Sagittarius A” it’s location is believed to be, in the densest part of our galaxy (I mean concentration and proximity of stars) would be swallowing up stars at an enormous rate would it not?.
Astronomers say it is possible that all, most, many? Galaxies have a supermassive black hole at their cores, let’s assume this is fact, eventually an entire galaxy can be consumed by a black hole that size. The more it consumes, the greater it’s gravitational pull, it eventually grows exponentially until the whole galaxy is snuffed out?.
Having said that, there surely must be examples somewhere of galaxies in the process of being swallowed up, in their final death throws, the remnants of spiral arms and the few millions of stars left on their final plunge into blackness and infinite, invisible density.
Or, supermassive black holes may well be a relatively new phase in a galaxies life cycle? are we living at the point where these gargantuan black holes are coming into existence, and maybe it will be billions of years more before galaxies begin to fall prey to their own black holes?. Are there any examples of galaxies much older than ours where evidence shows they are being consumed slowly?
Something as massive, and destructive, as a black hole with a billion star mass, smack in the middle of a galaxies densest region must eventually become a runaway, growing exponentially and consume an entire galaxy, would it not?. Is it possible that our present stelliferous age will meet its end by way of ever expanding black holes?.
I would love to hear your thoughts!
NGC 4051 is a spiral Sifert galaxy in the constellation Ursa Major, at about 48 Mly from earth. It covers about 5 x 4 arcminutes of the night sky The core of this galaxy contains a supermassive black hole.
Data from the Liverpool Telescope, La Palma (2 m aperture and 0.28 "/pixel resolution)