Hemisphere:  Southern  ·  Constellation: Dorado (Dor)  ·  Contains:  NGC 2053  ·  NGC 2088  ·  NGC 2095  ·  NGC 2098  ·  NGC 2105  ·  NGC 2109  ·  NGC 2117  ·  The star εDor
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Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro
Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds
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Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds

Revision title: New data

Getting plate-solving status, please wait...
Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro
Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds
Powered byPixInsight

Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds

Revision title: New data

Imaging Telescopes Or Lenses
ASKAR FRA600 108mm APO f/5.6 Refractor
Imaging Cameras
ZWO 294 MC Pro Cooled
Mounts
iOptron CEM 70
Filters
Optolong UV/IR 2" Filter
Accessories
Pegasus Focus Cube v2 · AstroZap Dew Heater · Gerd Neumann Flat Field Panels Flat Lighting for 5" and 10" Telescopes
Software
Nighttime Imaging 'N' Astronomy N.I.N.A. 1.10 · GIMP 2.10.28 · Pleiades Astrophoto, S.L. PixInsight 1.8.8-9 Ripley (x64) · PH2 Guiding software · DSS 4.2.5 (64)
Guiding Telescopes Or Lenses
William Optics UniGuide 50mm f/4 Guide Scope
Guiding Cameras
ZWO 120MM Mini

Acquisition details

Dates:
Nov. 27, 2021
Frames:
165x120" (5h 30')
Integration:
5h 30'
Avg. Moon age:
22.13 days
Avg. Moon phase:
50.16%

RA center: 05h43m40s.8

DEC center: -67°4536

Pixel scale: 1.599 arcsec/pixel

Orientation: 359.154 degrees

Field radius: 1.099 degrees

Resolution: 2778x4092

Locations: ARTAMI Observatory at home, Curicó - Bortle 5 - 6, Maule, Chile

Data source: Backyard

Description

Objects to the west of the Large Magellan Cloud. At the first sight you see a number of open cluster, and in the left hand side border, near the centre of the border, a globular cluster, ESO 57-43. At the top left corner the star e-Dor,  and at the very centre, the N70 super bubble cloud. Sometimes also designed as LH120-N70, which is a supernova remnant, and has 300 ly diameter. Below it you have two clusters NGC 2114 and NGC 2098.
There is an article here on its early characterization: http://astroimg.org/articles/LH120N70-MarchApril1994.pdf
I did crop the large image an annotated as image B.
There is a problem in my images, I did not try star reduction, so a lot of halos are around the stars and, it seems the effect has to do with a faster optics. I hope is not the UV/IR Cut filter, anyway... I have to learn how to reduce halos.

For the colours I did photometric colour calibration, selecting one of the star clusters as main coordinates. From there, I had to reduce a bit the bluish, it has strong blue colours on the structure above N70.

Comments

Revisions

  • Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro
    Original
  • Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro
    B
  • Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro
    C
  • Final
    Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro
    D

B

Title: Crop of the wide field image

Description: Just a crop of the larger image, emphasizing the clouds.

Uploaded: ...

C

Title: Annotated

Description: Crop of the image but annotated, with the cluster of galaxies and several star clusters.

Uploaded: ...

D

Title: New data

Description: The problem was my focuser, so the star halos were just due to out of focus. I run a few test to finally discover that the focuser was not doing the proper job (my fault anyway). So last night I repeated for a 6 hr exposure (180x120" images) and now is much better.

Uploaded: ...

Sky plot

Sky plot

Histogram

Wide Field west of the Large Magellan Cloud - N70 and lots of clusters (like NGC 2114 and 2098) and gas clouds, 



    
        

            Claudio Tenreiro