Contains:  Omega nebula, M 17, NGC 6618, M 18, NGC 6613, IC 4701
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vdB120, vdB121, vdB117, M17, M18, NGC6596, IC4701, IC4706; Sagittarius, 





    
        

            Thomas V. Davis
vdB120, vdB121, vdB117, M17, M18, NGC6596, IC4701, IC4706; Sagittarius

vdB120, vdB121, vdB117, M17, M18, NGC6596, IC4701, IC4706; Sagittarius

Technical card

Resolution: 1600x1606

Astrometry.net job: 2190314

RA center: 274.328 degrees

DEC center: -16.922 degrees

Pixel scale: 4.186 arcsec/pixel

Orientation: 89.742 degrees

Field radius: 1.318 degrees

Data source: Backyard

Description

vdB120, vdB121, vdB117, M17, M18, NGC6596, IC4701, IC4706; Sagittarius
Astro-Physics 305mm f/3.8 Riccardi-Honders astrograph
KAI-16803 FLI Proline
Total Exposure Time: 2.5 hours; LRGB 60:30:30:30 minutes RGB binned 2x2
June 2012; Inkom, ID

Comments: There are some pretty amazing dust formations near the center of the image.

vdB120: Size (arcmin): 1.2
Type: illuminating star inside nebula
Surface brightness: moderate
Color: red
Absorption: moderate
Illuminating star ID1: BD-16 4790
Illuminating star ID2: HD167746
Mag. of illuminating star: 8.69
Spectral type of star: F7II

vdB121: Size (arcmin): 0.6
Type: illuminating star inside nebula
Surface brightness: faint
Color: blue
Absorption: moderate
Illuminating star ID1: BD-17 5141
Illuminating star ID2: HD168418
Mag. of illuminating star: 9.5
Spectral type of star: B2Iab/Ib

vdB117: Size (arcmin): 2.2
Type: illuminating star inside nebula
Surface brightness: moderate
Color: very blue
Absorption: moderate
Illuminating star ID1: BD-17 5080
Illuminating star ID2: HD167143
Mag. of illuminating star: 9.11
Spectral type of star: B3III

Comments

Author

tvdavisid
Thomas V. Davis
License: None (All rights reserved)
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Histogram

vdB120, vdB121, vdB117, M17, M18, NGC6596, IC4701, IC4706; Sagittarius, 





    
        

            Thomas V. Davis