Nebulae: Crash Course Astronomy #36
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Date: 2022-04-04
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Comments and reviews: 10
Norman
What about the expansion rate of the Crab Nebula formation. It is expanding at a rate faster than our value for -c-. Photos taken in the early part of the last century show its configuration at that time and photos taken more recently show a configuration that exceeds the calculated distance of travel for its outer edges than our value for -c- can account for. This Nebula is estimated to be eight thousand four hundred light years away. In the time allocated it should show no difference in its expansion configuration over the estimated hundred fifty to two hundred year time frame. .
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What about the expansion rate of the Crab Nebula formation. It is expanding at a rate faster than our value for -c-. Photos taken in the early part of the last century show its configuration at that time and photos taken more recently show a configuration that exceeds the calculated distance of travel for its outer edges than our value for -c- can account for. This Nebula is estimated to be eight thousand four hundred light years away. In the time allocated it should show no difference in its expansion configuration over the estimated hundred fifty to two hundred year time frame. .
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David
There isn't a high school or college professor who'd want me in their class. I know I'm not the brightest bulb in the box, but when my curiosity get going, I'm relentless with questions. My questions would look like an outline for a book report x 100.
Example:
I. question
A. question
1. question
a. question
b. question
2. question
I think you get the idea.
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There isn't a high school or college professor who'd want me in their class. I know I'm not the brightest bulb in the box, but when my curiosity get going, I'm relentless with questions. My questions would look like an outline for a book report x 100.
Example:
I. question
A. question
1. question
a. question
b. question
2. question
I think you get the idea.
reply
Lizard
THANK YOU for that zooming at 9: 25 I've been trying to get a handle on the actual size of these spectacular images in the sky. Like, it's so hard to imagine close by galaxies being the size in the sky as the moon because I never see anything cos of light pollution but it's amazing seeing the actual sizes against orion
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THANK YOU for that zooming at 9: 25 I've been trying to get a handle on the actual size of these spectacular images in the sky. Like, it's so hard to imagine close by galaxies being the size in the sky as the moon because I never see anything cos of light pollution but it's amazing seeing the actual sizes against orion
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Samarkand
Soooo, uuuh, Nebulaes come from the explosion of large stars that have run out of simple elements to use as fuel, like hydrogen and helium, yet somehow the stars born from the nebulae are brand new with their stocks of hydrogen and helium? How, exactly?
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Soooo, uuuh, Nebulaes come from the explosion of large stars that have run out of simple elements to use as fuel, like hydrogen and helium, yet somehow the stars born from the nebulae are brand new with their stocks of hydrogen and helium? How, exactly?
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Stickman
Fun fact: Nebulae, Barnard's Loop in particular are really useful for navigation purposes in space simulator games like Elite Dangerous due to their high naked eye visibility and relatively predictable position from system to system.
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Fun fact: Nebulae, Barnard's Loop in particular are really useful for navigation purposes in space simulator games like Elite Dangerous due to their high naked eye visibility and relatively predictable position from system to system.
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Dick
I've always wondered, if nebulae are massive swirling and expanding gas and dust, why do they appear to be so stationary and unchanging. Shouldn't they be changing shape with time like a cloud here on earth?
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I've always wondered, if nebulae are massive swirling and expanding gas and dust, why do they appear to be so stationary and unchanging. Shouldn't they be changing shape with time like a cloud here on earth?
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Paul
The breathless manner of editing all of these scientific videos, makes it difficult to retain the information. Please considering leaving just a bit more time between sentences.
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The breathless manner of editing all of these scientific videos, makes it difficult to retain the information. Please considering leaving just a bit more time between sentences.
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Vernon
I'm kind of afraid of getting a telescope, because I'm afraid of neglecting it and not using it as much as I would like to. I'd like to get a bigger pair of binoculars though
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I'm kind of afraid of getting a telescope, because I'm afraid of neglecting it and not using it as much as I would like to. I'd like to get a bigger pair of binoculars though
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Jess
Gorgeous science, thorough treatment. But pls ditch the seque' visual, which blinds one between, gets quickly repetitive, --count them. Interfere w appreciating the nebulae.
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Gorgeous science, thorough treatment. But pls ditch the seque' visual, which blinds one between, gets quickly repetitive, --count them. Interfere w appreciating the nebulae.
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Eric
You explain things very well. I always learn something from you. How does this space stuff turn into a hot spinning ball of hydrogen? It's just floating in space?
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You explain things very well. I always learn something from you. How does this space stuff turn into a hot spinning ball of hydrogen? It's just floating in space?
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