Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  IC 4706  ·  IC 4707  ·  Lobster Nebula  ·  M 17  ·  NGC 6618  ·  Sh2-45  ·  Swan Nebula  ·  omega Nebula
Getting plate-solving status, please wait...
M17 in SHORGB, 



    
        

            Los_Calvos
Powered byPixInsight

M17 in SHORGB

Getting plate-solving status, please wait...
M17 in SHORGB, 



    
        

            Los_Calvos
Powered byPixInsight

M17 in SHORGB

Acquisition details

Dates:
June 20, 2021 ·  June 21, 2021 ·  June 22, 2021 ·  June 23, 2021 ·  June 24, 2021 ·  June 25, 2021 ·  June 26, 2021
Frames:
Chroma Technology Chroma Blue: 12×300(1h) -20°C bin 1×1
Chroma Technology Chroma Green: 12×300(1h) -20°C bin 1×1
Chroma Technology Chroma Ha 3nm: 25×1200(8h 20′) -20°C bin 1×1
Chroma Technology Chroma OIII 3nm: 36×1200(12h) -20°C bin 1×1
Chroma Technology Chroma SII 3nm: 37×1200(12h 20′) -20°C bin 1×1
Chroma L: 13×300(1h 5′) -20°C bin 1×1
Chroma Red: 12×300(1h) -20°C bin 1×1
Integration:
36h 45′
Darks:
55
Flats:
7
Bias:
200
Avg. Moon age:
13.30 days
Avg. Moon phase:
92.14%
Bortle Dark-Sky Scale:
1.00

RA center: 18h20m38s.373

DEC center: -16°0413.27

Pixel scale: 0.732 arcsec/pixel

Orientation: 1.059 degrees

Field radius: 0.584 degrees

More info:Open 

Resolution: 4056x4076

File size: 94.6 MB

Data source: Own remote observatory

Remote source: Observatorio El Sauce

Description

Once again a great classic: M17.M17, located in Sagittarius and visible from the 2 hemispheres, is also called omega or Swan Nebula. It is an emission nebula, its strong luminosity comes from young B-type stars that irradiate the gas around HII.The central bar of the nebula actually masks an open cluster consisting of about thirty young stars that could be observed in IR, as well as a high density of dust favorable to their formation.This bar, the brightest part really pulls towards the white and not overexposed as one might think. This phenomenon is apparently the result of mixing the emission light of the very hot gas with that of bright stars reflected by the surrounding dust. The nebula contains a large amount of dark matter whose presence is made evident by the remarkable shapes it reveals. This material has been heated by the young hidden stars and shines strongly in infrared light.  It is about 5500 Light-Years away for a size of about 40 Light-Years (the central bar represents only 15 Light-Years). We offer it in SHORGB mode as well as in classical RGB version

Comments

Revisions

  • Final
    M17 in SHORGB, 



    
        

            Los_Calvos
    Original
  • M17 in SHORGB, 



    
        

            Los_Calvos
    B

B

Description: version LRGB

Uploaded: ...

Sky plot

Sky plot

Histogram

M17 in SHORGB, 



    
        

            Los_Calvos