Celestial hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  Sh2-261
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Lower's nebula (Sh2-261) in Hα-SII/OIII/OIII+rgb, 



    
        

            Jose Carballada
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Lower's nebula (Sh2-261) in Hα-SII/OIII/OIII+rgb

Getting plate-solving status, please wait...
Lower's nebula (Sh2-261) in Hα-SII/OIII/OIII+rgb, 



    
        

            Jose Carballada
Powered byPixInsight

Lower's nebula (Sh2-261) in Hα-SII/OIII/OIII+rgb

Acquisition details

Dates:
Dec. 17, 2020 ·  Jan. 6, 2021 ·  Jan. 18, 2021 ·  Jan. 27, 2021 ·  Feb. 10, 2021 ·  Feb. 11, 2021
Frames:
Astrodon B Gen.2 E-series 36mm: 140×30(1h 10′) (gain: 75.00) -20°C bin 1×1
Astrodon G Gen.2 E-series 36mm: 140×30(1h 10′) (gain: 75.00) -20°C bin 1×1
Astrodon HA 36mm - 5nm: 240×600(40h) (gain: 200.00) -20°C bin 1×1
Astrodon O-III 36mm - 5nm: 107×600(17h 50′) (gain: 111.00) -15°C bin 1×1
Astrodon R Gen.2 E-series 36mm: 140×30(1h 10′) (gain: 75.00) -20°C bin 1×1
Astrodon S-II 36mm - 5nm: 107×600(17h 50′) (gain: 111.00) -15°C bin 1×1
Integration:
79h 10′
Avg. Moon age:
16.91 days
Avg. Moon phase:
31.21%

RA center: 06h08m57s.26

DEC center: +15°4527.2

Pixel scale: 1.007 arcsec/pixel

Orientation: 0.172 degrees

Field radius: 0.408 degrees

More info:Open 

Resolution: 2328x1760

File size: 2.7 MB

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Another nice object from the amazing Sharpless catalog.

Close to 80 hours of integration time and really surprised by the blue bubble that appears in the middle (not the bright blue triangle, the big blue subtle bubble on top of that) .

As usual on my latest pictures, I used this "natural" palette that I really like so much.

The process was long and hard and the acquisition also due to the weather in my observatory's region.

This object was never something prioritari on my desk but I am really happy with the results, even with the hard work to process all this data.

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