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Contains:  Hourglass nebula, IC 1274, IC 1275, IC 4685, Lagoon nebula, M 20, M 21, M 8, NGC 6514, NGC 6523, NGC 6526, NGC 6530, NGC 6531, NGC 6544, NGC 6546, NGC 6559, The star 11Sgr, The star 4Sgr, The star 7Sgr, The star 9Sgr, Trifid nebula
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M8 & M20, 


            Hsiang-Yu Hsieh
M8 & M20
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Technical card

Imaging telescopes or lenses: PENTAX 75 SDHF

Imaging cameras: Canon 6 D mod.

Mounts: Vixen Advanced Polaris (AP)

Dates:May 18, 2018

Frames: 68x120" ISO1600

Integration: 2.3 hours

Darks: ~13

Flats: ~15

Bias: ~10

Avg. Moon age: 3.38 days

Avg. Moon phase: 12.37%

Temperature: 28.00

Basic astrometry details job: 2076195

RA center: 18h 9' 14"

DEC center: -24° 14' 9"

Pixel scale: 2.696 arcsec/pixel

Orientation: 348.028 degrees

Field radius: 2.920 degrees

Resolution: 6488x4325

Data source: Traveller


This is a two-frames mosaic. It's the first time I used partial brighter/darker method for image.



Hsiang-Yu Hsieh
License: None (All rights reserved)

Sky plot

Sky plot


M8 & M20, 


            Hsiang-Yu Hsieh

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Images of Taiwan