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SDSSCGB 12925 Compact Group of Galaxies (Subaru HSC-SSP), 



    
        

            sergio.diaz

SDSSCGB 12925 Compact Group of Galaxies (Subaru HSC-SSP)

Technical card

Software: PixInsight 1.8  ·  Photoshop CC



Basic astrometry details

Astrometry.net job: 4071811


Resolution: 1082x1759

Data source: Professional, scientific grade data

Description

Compact Group of Galaxies SDSSCGB 12925. The object up from center is actually a group of three closely interacting galaxies, the UGC 12589 (which is an AGN), SDSSCGB 12925.3 and SDSSCGB 12925.4, while the lower one is the Seifert 1 galaxy 2MASX J23250382+0001068.

This image comes from a cutout of the Subaru Strategic Survey, that uses the 8.2 Subaru telescope with a giant CCD array (Hyper Suprime-Cam). The color composite uses the sdss-i (4 subs), sdss-r (2 subs) and sdss-g (4 subs) filters for the R, G, B channnels, respectively.

Processed with PI, removed some artifacts (the disturbing blooming-like on brightest stars) and final adjustments with Ps.

Acknowledgement:
Hyper Suprime-Cam Subaru Strategic Survey, Principal Investigator: Satoshi Miyazaki (NAOJ)

Data downloaded as FITS cutout from hscMap tool, Deep-UltraDeep (dud) survey. Fields 9463 and 9706 (discarded some of the data because of large artifacts).

8.2 m Subaru telescope & Hyper Suprime-Cam
0.168 arcsec/pixel, 15 um/pixel, estimated focal length ~18400mm
Capture data is not stored in the FITS metadata.

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sergio.diaz
sergio.diaz
License: Attribution-NonCommercial-ShareAlike Creative Commons
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SDSSCGB 12925 Compact Group of Galaxies (Subaru HSC-SSP), 



    
        

            sergio.diaz