Hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  The star 69Ori
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Lower's Nebula Sh2-261, 



    
        

            Jim Thommes
Lower's Nebula Sh2-261
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Getting plate-solving status, please wait...
Lower's Nebula Sh2-261, 



    
        

            Jim Thommes
Lower's Nebula Sh2-261
Powered byPixInsight

Technical card

Imaging telescopes or lenses: Takahashi FSQ-106

Imaging cameras: ATIK383L+

Mounts: AVX

Guiding cameras: ASI 120MM Guide Camera

Software: Mikita Misiura Starnet ++  ·  Aladin Sky Atlas Aladin  ·  Excalibrator  ·  Pixinsight  ·  Main Sequence Software Sequence Generator Pro  ·  PHD2 AutoGuide Software

Filters: Astronomik Ha 12nm 1.25''  ·  Astronomik LRGB 1.25" Type IIc  ·  Astronomik OIII 12nm OIII Filter

Accessory: Pegasus Focus Cube2 Pegasus Focuser


Dates:Dec. 28, 2019Jan. 22, 2020

Frames:
Astronomik Ha 12nm 1.25'': 18x720" (3h 36') bin 1x1
Astronomik OIII 12nm OIII Filter: 24x720" (4h 48') bin 2x2
RGB: 24x300" (2h) bin 1x1

Integration: 10h 24'

Avg. Moon age: 14.73 days

Avg. Moon phase: 5.73%


Basic astrometry details

Astrometry.net job: 4762476

RA center: 06h08m45s

DEC center: +15°4839

Pixel scale: 2.358 arcsec/pixel

Orientation: 0.367 degrees

Field radius: 1.228 degrees


Resolution: 3000x2250

Locations: Desert Astronomy Association Observatory Campus, Julian, CA, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

This is an image of the emission nebula Sh2-261 (known popularly as Lower's Nebula and also known as LBN 863, SIM 34). Embedded within Sh2-261 is LBN 862 and LBN 864.  Also there are several dark nebulae in this field (Dobashi 4665, TGU H1364 P13, TGU H1364 P14) and one open cluster ([KPS2012] MWSC 0725).  These objects and some of the brighter stars are seen in the annotated image.  The horizontal FOV is approximately 120'. Image scale of the full size image is 2.4 arcsec/pix.

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Lower's Nebula Sh2-261, 



    
        

            Jim Thommes