Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Hourglass nebula  ·  Lagoon nebula  ·  M 8  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  The star 7Sgr  ·  The star 9Sgr
M8 / NGC6523, kai_m
M8 / NGC6523
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M8 / NGC6523

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Description

This image was taken from my balcony, where i have only very limited visible area at the sky. Actually it was 5 times 60 sec and 2 times 120 sec exposure. At about 03:40 the milky way happened to cross my visible area, so the images were made shortly before and lasting over the beginning of morning dawn at horizonal altitude of about 14 degrees, during last exposures sky already appearing bright light blue. Further 60s exposures would not have been possible without saturating the cam, guiding became worse anyway.

No filters used.

Used Fitswork:

stacking

alignment of color layers (strong atmospheric dispersion)

RGB adjustment

dark substract

flat division

slight wavelet flattening

Used GIMP for additional color adjustment.

Comments

Sky plot

Sky plot

Histogram

M8 / NGC6523, kai_m