Mystic Sisterhood

Would you like to react to this message? Create an account in a few clicks or log in to continue.
Mystic Sisterhood

Psychic, Paranormal & Natural Science Forums



Next Chat Event

How to Hold a Dead Star in Your Hand 5nvklj





How to Hold a Dead Star in Your Hand 9tpt39

..


How to Hold a Dead Star in Your Hand

Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 10:56 am

Objects in space are rather far away. The Moon is our closest celestial neighbor at nearly a quarter million miles from Earth, and the nearest star, our Sun, is 93 million miles away.

These extreme distances mean that it’s usually impossible to touch real objects in space (meteorites that fall to the ground not withstanding).

Advances in both astronomy and technology, however, now allow you to do the next best thing: hold a 3-D model of one based on real data.

Cassiopeia A is located about 10,000 light years from Earth.

How does that compare with our local cosmic objects of the Sun and Moon?

One light year equals the distance that light travels in a year, or just under 6 trillion miles (~10 trillion km).

This means that Cassiopeia A is an impressive 60,000,000,000,000,000 miles (100,000,000,000,000,000 km) from Earth.


Source


_________________
How to Hold a Dead Star in Your Hand 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 10:58 am

How to Hold a Dead Star in Your Hand Casa_sf_optical


Supernova Remnant Cassiopeia A

One such supernova remnant that Chandra studies is Cassiopeia A. About 400 years ago, in our own Milky Way galaxy, a star that was about 15 to 20 times the mass of our Sun, detonated in a supernova explosion.

If we look at Cassiopeia A in optical light, the kind the human eye detects, we see delicate filamentary structure at around 10,000 degrees Celsius.


Source


_________________
How to Hold a Dead Star in Your Hand 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 10:59 am

How to Hold a Dead Star in Your Hand Casa

Death comes alive in the X-ray image of Cassiopeia A from Chandra, however, looking at material that’s millions of degrees hot.

There is so much energy that it heats up the debris field to temperatures that cause the material to glow in X-ray light.


Source


_________________
How to Hold a Dead Star in Your Hand 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 11:02 am

How to Hold a Dead Star in Your Hand Casa_group

Once the data are in the form of an image, different colors can be assigned to various slices of light detected.

For example, a common color palette of chromatic ordering is based on the amount of energy and often includes three layers: red is applied to the lowest energy band, green to the medium, and then blue to the highest energy band in the dataset.

When this is done for X-rays detected for Cassiopeia A, new and important information is revealed.

The blue, wispy arcs in the image show where the acceleration is taking place in an expanding shock wave generated by the explosion.

The red and green regions show material from the destroyed star that has been heated to millions of degrees by the explosion.


Source


_________________
How to Hold a Dead Star in Your Hand 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 11:27 am



3-D Visualization of Cassiopeia A



_________________
How to Hold a Dead Star in Your Hand 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 11:28 am



3-D Fly-Through of Cassiopeia A


_________________
How to Hold a Dead Star in Your Hand 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 7263
Points : 23847
Times User Thanked: : 902
Join date : 2018-01-18

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Dragon Fri Jun 25, 2021 11:29 am



How to Hold a Dead Star in Your Hand


_________________
How to Hold a Dead Star in Your Hand 334pu7m

Sponsored content

How to Hold a Dead Star in Your Hand Empty Re: How to Hold a Dead Star in Your Hand

Post by Sponsored content


    Current date/time is Sat Oct 23, 2021 12:32 pm