Star Clusters - Globular and Open - post your images of clusters

[Jeff WX1USN]

With all the clouds here I have been using the Slooh remote observatory more and actually processing some of the images.

Here is an image of Caldwell 73 I took with the Slooh 14" SCT telescope at the Chile Observatory. 69 images taken in 2019 and 2023. Processed in Pixinsight and Lightroom.


Caldwell 73, also known as NGC 1851, is a globular cluster located about 40,000 light-years from Earth in the constellation Columba. It is notable for hosting stars of different ages and is believed to be a remnant of two clusters that collided in the past.

 

[Levina de Ruijter]

With all the clouds here I have been using the Slooh remote observatory more and actually processing some of the images.

Here is an image of Caldwell 73 I took with the Slooh 14" SCT telescope at the Chile Observatory. 69 images taken in 2019 and 2023. Processed in Pixinsight and Lightroom.


Caldwell 73, also known as NGC 1851, is a globular cluster located about 40,000 light-years from Earth in the constellation Columba. It is notable for hosting stars of different ages and is believed to be a remnant of two clusters that collided in the past.

View attachment 6711

40,000 light-years away. That it can be seen at all, so far away. Hard to imagine that all those are stars, not unlike our sun. Great image, Jeff.

 

[Jeff WX1USN]

40,000 light-years away. That it can be seen at all, so far away. Hard to imagine that all those are stars, not unlike our sun. Great image, Jeff.

The Andromeda Galaxy is the furthest you can see with the naked eye, it is 2.5 MILLION LIGHT YEARS AWAY! but that also shows just how big it is!

 

[Levina de Ruijter]

The Andromeda Galaxy is the furthest you can see with the naked eye, it is 2.5 MILLION LIGHT YEARS AWAY! but that also shows just how big it is!

It's that far away? Wow. That's a number on a scale that goes above and beyond my puny brain. Amazing. I thought it would be relatively close, seeing as how it can be seen with the naked eye, or so I'm told as I've never seen it, be it with the naked eye or through a telescope. It must be huge then. It does make 40,000 light years seem like a short distance!

I'm still getting that Seestar by the way. Just wait and see!

 

[Jeff WX1USN]

It's that far away? Wow. That's a number on a scale that goes above and beyond my puny brain. Amazing. I thought it would be relatively close, seeing as how it can be seen with the naked eye, or so I'm told as I've never seen it, be it with the naked eye or through a telescope. It must be huge then. It does make 40,000 light years seem like a short distance!

I'm still getting that Seestar by the way. Just wait and see!

40K light years is still within our galaxy. and 2 million light years is a short distance cosmically

 

[Levina de Ruijter]

40K light years is still within our galaxy. and 2 million light years is a short distance cosmically

Yes. I always thought that we can see other galaxies but not see into them. So star clusters, nebulas etc. are by definition in our galaxy. That at least is what I always assumed. But the distances within the galaxy still blow me away.

 

[Jeff WX1USN]

Yes. I always thought that we can see other galaxies but not see into them. So star clusters, nebulas etc. are by definition in our galaxy. That at least is what I always assumed. But the distances within the galaxy still blow me away.

You are totally correct regarding the things in our galaxy!

 

[Levina de Ruijter]

You are totally correct regarding the things in our galaxy!

Yes! Thank God I got something right!

 

[JohnPD]

Yes. I always thought that we can see other galaxies but not see into them. So star clusters, nebulas etc. are by definition in our galaxy. That at least is what I always assumed. But the distances within the galaxy still blow me away.

You are totally correct regarding the things in our galaxy!

The things I learn here! Seriously!

 

[Jeff WX1USN]

Caldwell 98 The Coal Sack Cluster
from the wiki
NGC 4609 (also known as Caldwell 98) is an open cluster of stars in the southern constellation of Crux. It was discovered on May 12, 1826 by the Scottish astronomer James Dunlop.[4] The cluster has an apparent visual magnitude of 6.9[2] and spans an angular size of 6.5′.[1] It is situated beyond the Coalsack Nebula[5] at an estimated distance of 4,500 ly (1,379 pc) from the Sun