12 replies to this topic

[Daniel Dance]

This is somewhat a redux of a previous quasar annotated Leo Triplet I did about 6 years ago - this time I used an ASI1600 camera - previously I used an QSI683 CCD camera.

 

The most mind blowing part of this image are the quasars, which only a few are annotated here, near the Hamburger Galaxy, NGC 3628.

 

These quasars are located billions and billions of light years away which I just can fathom what that means.  I just can't.  Time and space and space and time. . . .

 

Source:  (For quasar positions, redshifts, positions come from)

Paper:  NGC 3628: Ejection activity associated with quasars

Authors:  H. Arp, E. M. Burbridge, Y. Chu, E. Flesch4, F. Patat, and G. Rupprecht

 

 

Leo Triplet with Quasars 2024 by Daniel McCauley, on Flickr

 

 

 

[Borodog]

I wish I could "love" this image instead of just "like" it. Beautiful processing. Capture details? Equipment and integration time? Bortle class?

[Daniel Dance]

I wish I could "love" this image instead of just "like" it. Beautiful processing. Capture details? Equipment and integration time? Bortle class?

Thank you.

 

ASI183 with Takahashi TOA-130.

Lum was 85 x 120s total - R, G, B was 20 minutes each.

Bortle 5 skies

[micromaxcomputer]

Incredible!

[AhBok]

Well, I don’t like it. I kinda love it!

[Daniel Dance]

Well, I don’t like it. I kinda love it!

Thank you all!   It boggles my mind.

 

I learned a lot about redshift values as well from doing this . . .

[danny1976]

There is a lot of detail in those tiny galaxies.

[Daniel Dance]

There is a lot of detail in those tiny galaxies.

Thanks.

Those actually aren't very tiny though. They're some of the largest galaxies angular size to photograph in the night sky along with M81, M82, M101, M51, etc....

[descott12]

One of the best images I have seen. Truly fantastic. So sharp. 

[Ptarmigan]

Nice image!   

 

Always cool to see quasars in those images. Mindboggling to think that light left way before our Solar System even formed. The light arrives to Earth that has traveled for billions of years. 

[Daniel Dance]

Thank you all.  As Carl Sagan would say . . . ."Billions and Billions"

[Rasfahan]

Very nice - and to think people claim it‘s not worth to do broadband imaging from light polluted skies.

Edited by Rasfahan, 22 February 2024 - 05:12 PM.

[Jim Thommes]

Beautiful image Daniel! Size of the known universe is indeed difficult to conceive. Throw in expansion of space and your head explodes.