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

[Jeff WX1USN]

Clusters are seen in several forms, Open where the associated stars are spread out, Tight is it sounds a group of stars near each other, and Globular a "ball" of stars often looking like a Christmas Tree ornament, they can have hundreds of thousands of stars in the globular.

This is M45 a open cluster that has nebulosity associated with it. It is visible to the naked eye looking like a little dipper.The thin line is a satellite.

 

[PhotoNut]

You know a lot about astronomy. Your images are terrific.

 

[Chuck]

Clusters are seen in several forms, Open where the associated stars are spread out, Tight is it sounds a group of stars near each other, and Globular a "ball" of stars often looking like a Christmas Tree ornament, they can have hundreds of thousands of stars in the globular.

This is M45 a open cluster that has nebulosity associated with it. It is visible to the naked eye looking like a little dipper.The thin line is a satellite.

View attachment 1820

What the other guy said: terrific!

 

[Jeff WX1USN]

NGC 869 the double cluster also listed as Caldwell 14

From Wikipedia
The Double Cluster (also known as Caldwell 14) consists of the open clustersNGC 869 and NGC 884 (often designated h Persei and χ (chi) Persei, respectively), which are close together in the constellation Perseus. Both visible with the naked eye, NGC 869 and NGC 884 lie at a distance of about 7,500 light years in the Perseus Arm of the Milky Waygalaxy

 

[Jeff WX1USN]

from the Wiki
Messier 50 or M 50, also known as NGC 2323 or the Heart-shaped Cluster, is an open cluster of stars in the constellation Monoceros. It was recorded by G. D. Cassini before 1711 and independently discovered by Charles Messier in 1772 while observing Biela's Comet. It is sometimes described as a 'heart-shaped' figure or a blunt arrowhead

 

[Jeff WX1USN]

from the wiki
Omega Centauri (ω Cen, NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 17,090 light-years (5,240 parsecs), it is the largest known globular cluster in the Milky Way at a diameter of roughly 150 light-years.<a href="https://en.wikipedia.org/wiki/Omega_Centauri#cite_note-10"><span>[</span>10<span>]</span></a> It is estimated to contain approximately 10 million stars, with a total mass of 4 million solar masses,<a href="https://en.wikipedia.org/wiki/Omega_Centauri#cite_note-11"><span>[</span>11<span>]</span></a> making it the most massive known globular cluster in the Milky Way.

Omega Centauri is very different from most other galactic globular clusters to the extent that it is thought to have originated as the core remnant of a disrupted dwarf galaxy

Taken with the 17" planewave telescope at the Slooh Chile Observatory

 

[PhotoNut]

It is estimated to contain approximately 10 million stars, with a total mass of 4 million solar masses

This is totally unimaginable, isn't it?

Great images again, Jeff. Just, dare I say it, stellar! (They really are.)

 

[JohnPD]

This is totally unimaginable, isn't it?

Great images again, Jeff. Just, dare I say it, stellar! (They really are.)

It is unimaginable. Far exceeds what our puny human minds can grasp.

Images are superb!

 

[Blackbird]

This is totally unimaginable, isn't it?

Yes, it is.

And the images are amazing.

 

[Jeff WX1USN]

This is totally unimaginable, isn't it?

Great images again, Jeff. Just, dare I say it, stellar! (They really are.)

Yes, it is.

And the images are amazing.

Thank all of you. I am going to start a new thread about equipment/cameras/techniques in the Astro area.

 

[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