Hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  IC 879  ·  NGC 5078  ·  NGC 5101
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NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow
NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow

NGC 5078, NGC 5101, IC 879

Getting plate-solving status, please wait...
NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow
NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow

NGC 5078, NGC 5101, IC 879

Acquisition details

RA center: 13h20m49s.396

DEC center: -27°2246.88

Pixel scale: 0.976 arcsec/pixel

Orientation: 11.572 degrees

Field radius: 0.363 degrees

More info:Open 

Resolution: 2145x1600

Data source: Amateur hosting facility

Remote source: Heaven's Mirror Observatory

Description

NGC 5078, NGC 5101, IC 879

OTA:……………….CDK17

Camera:………….SBIG STXL11002 with AOX and FW8G (0.63 arsec/pxl)

Observatory:…. Heaven’s Mirror, Chile

EXPOSURES:

…R…….13 x 1200 sec.

…B…....17 x 1200

…G…….15 x 1200

…L……..19 x 1200

Total exposure 21.3 hours

Image Width: 40 arc-minutes

Processed by Alex Woronow (2020) using PixInsight, Topaz, 3DLut, SWT

The most prominent galaxies in this image, NGC 5101 (the face-on galaxy on the left), 5078 (the large edge-on galaxy on the right), and IC 879 (the small galaxy below NGC 507 all lie in the S. Hemisphere at about -27 degrees, making them difficult, at best, to image from N. America, but easy for N. Chile, where this image was captured. Both the NGC galaxies lie about 90M lyr from us and only 800,000 lyr from one-another.

NGC 5101 is classified as a “lenticular galaxy,” meaning it has a shape intermediate between a spiral galaxy and an elliptical galaxy: It has a disk shape but does not show distinct spiral arms. Such galaxies are thought by some scientists to be early-form galaxies, but ones that have lost/used up most of their dust and gas so that star formation is minimal. The lost-of-dust hypothesis suggests that they are old, not young. Some scientists have suggested that they evolved from spiral galaxies. So, I suppose their history remains up-in-the-air…or up-in-the-vacuum-of-space.

Let me deviate from popular descriptions of this galaxy and suggest that this image does show spiral arms…blurred, to be sure, but obviously there, nonetheless! I have no idea what implications, if any, this observation has; any ideas to share?

NGC 5978 shows a distorted dust lane, probably the results of interactions with another galaxy or two, or more. That other galaxy could be IC 879. IC879 shows an S-shape distortion, suggesting it interacted with NGC 5979—the two are only 61M lyr apart; that only 10% of the separation between the Milky Way and the Large Magellanic Cloud!

Other Galaxies appear across this image. According to the literature the galaxy group of the three title galaxies has only three more members, as I perceive the discussions, the other three members are not within this image, and, therefore, the numerous annotated galaxies are not members of the club.

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    NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow
    Original
  • NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow
    B

B

Description: Annotated

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NGC 5078, NGC 5101, IC 879, 



    
        

            Alex Woronow