Continuing with the Galaxy theme - a shot from a while back, taken at Lagunillas in Cajon del Maipo.
It was surpringsing to see the Milkly Way so clearly - being so close to Santiago...but as usual I only had to wait for that clear night and rush up some mountain. #Fun times.
And that's just about a wrap for what seems like the heart of milky way season here in Tahoe! It's been a fun one, and I've reinvigorated my passion for shooting the night sky experimenting with new techniques.
I'm excited about this image I got from the east shore a few nights ago, and looking forward to shooting some snowy landscapes this winter. I had some inspiration from @abeblair's photography for this shot, he does great work!
Are black holes spherical?
"Can you go to the other side of a black hole? As in, is a black hole a sphere that you can "go to the other side of," or if you orbited it from lightyears away, could you go "around" it?"
It is, in fact, possible to orbit a black hole. You do not even have to be light years outside of it. You simply have to be outside the event horizon, the distance at which everything, even light, falls into the black hole. For a normal-sized black hole, between fifty and seventy miles is a safe distance to orbit.
A black hole is a sphere in the sense that everything that goes within its Schwarzschild radius (the distance from the center of the black hole to the event horizon) cannot escape its gravity. Thus, there is a dark sphere around the infinitely dense center, or singularity, from which nothing can escape.
There is a supermassive black hole at the center of the Milky Way, and we orbit this black hole approximately every 230 million years.
To answer the title question, if a black hole is rotating, then it will be shaped as an oblate spheroid, slightly larger around the equator than in the direction of the poles. However, the equations of general relativity tell us that rather than having one radius, the location of the event horizon, there are two important radii, the spherical event horizon on the inside, and the oblate spheroidal exterior surface. The region in between the two is called the ergosphere, where particles cannot remain at rest and objects can still escape the black hole. Such a black hole looks like this (swipe left).
As in the non-rotating case, no particle entering the event horizon can escape.
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Actual Hoover Dam Info:
The Dam lies between Nevada and Arizona, and was constructed all the way back in 1936! It was originally known as the Boulder Dam but was renamed to Hoover later. So uh suck it Boulder City?? At the time it was built, such a large hydroelectric dam hadn't been constructed before. What you're seeing here is Lake Mead, the largest reservoir in the US by volume!
The white band shows how high it gets when full! Like a sugar high after a tub of Ben's and Jerry's.
Incredible work by @joe_leahy !
That's it. My music season is over. There are a few things I have going on, such as attending Photo Plus Expo in Manhattan next qeek and flying off to Oregon for one last photo trip to test equipment and bonds for next year. I suggest to every Long Islander photographer who wants to make a career out of this to attend Photo Plus at the Javitz Center next week. You can find me likely hanging around the Sigma booth.
In the meantime, tag your photos with #lislandastro as I have a lot of new people and work to feature on here and grow this community! Keep a lookout, as either November or December will again begin dark sky meetups in Montauk. For these winter meetups, I plan on bringing a telescope for viewing and teaching those attending how to use a star tracker to capture deep sky objects, such as the Orion Nebula and Andromeda Galaxy.