IC4604 - Blue Rho Ophiuchi Nebula

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NGC4038/4039 Antennae GalaxiesThe Rho Ophiuchi cloud complex is a complex of interstellar clouds with different nebulae in the constellation Ophiuchus. At an estimated distance of 460 light years, it is one of the closest star-forming regions to the Solar System.
On this close-up image we see  ρ Ophiuchi at the center of the large blue area (IC 4604).

 

Object IC4604 - Blue Rho Ophiuchi nebula (close-up)
Constellation: Ophiuchi
Position: RA 16h 25m 35s  / Dec -23° 26' 50''
Apparent Size: 60 x 50 arcmins
Apparent Magnitude:  
Distance in light years: 361 ly
   
Photo Data  
Date: 24 Mar 2021 - 03 May 2022
Location:

El Sauce Observatory Chile (1525m ASL)
GPS: 30.472529° S, 70.762999° W
Telescope: CHI-1-CCD:  Planewave CDK24  61cm / f6.5/3962mm
Camera: FLI ProLine PL9000,  12μm,  3056x3056,  @ T sensor = -10.0°
Field of View: 32' x 32'
Pixel Scale/Resolution: 0.62 arcsec/px
Expose frames/times: L 21x600s, R 18x600s, G 17x600s, B 13x600
Total expose: 11h 30min
Filter: Astrodon Luminance, Red, Green, Blue
Mount: Mathis MI-1000/1250 with absolute encoders
   
Software: Siril 1.4, Photoshop CC
Remarks:  

© Photos and photo data by Peter Cerveny
© Object description/intro text fully or partially by Wikipedia,
    which is released under the Creative Commons Attribution-ShareAlike 4.0 International License 

 
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