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Contains:  Hourglass nebula, Lagoon nebula, M 8, NGC 6523, NGC 6526, NGC 6530, The star 7Sgr, The star 9Sgr
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Lagoon nebula, M8 Hubble Palette, 


            Matt Hughes
Lagoon nebula, M8 Hubble Palette
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Lagoon nebula, M8 Hubble Palette

Technical card

Dates:May 17, 2018May 25, 2018May 26, 2018

Astrodon 5nm Ha 36mm: 20x1200" -15C bin 1x1
Astrodon OIII 36mm - 3nm: 18x1200" -10C
Astrodon SII 36mm 3nm: 20x1200" -15C

Integration: 19.3 hours

Flats: ~40

Bias: ~153

Avg. Moon age: 8.29 days

Avg. Moon phase: 59.81%

Bortle Dark-Sky Scale: 7.00

Basic astrometry details job: 2092526

RA center: 18h 4' 6"

DEC center: -24° 19' 19"

Pixel scale: 1.432 arcsec/pixel

Orientation: 359.985 degrees

Field radius: 0.828 degrees

Resolution: 3259x2587

Locations: Home, Gisborne, Victoria, Australia

Data source: Backyard


Taken over a month from 26 April 2018 to 26 May 2018. As the weather cooled I managed to cool my sensor more so integration was complicated.

The Lagoon Nebula is estimated to be between 4,000-6,000 light-years from the Earth. In the sky of Earth, it spans 90' by 40', which translates to an actual dimension of 110 by 50 light years. Like many nebulas, it appears pink in time-exposure color photos but is gray to the eye peering through binoculars or a telescope, human vision having poor color sensitivity at low light levels. The nebula contains a number of Bok globules (dark, collapsing clouds of protostellar material), the most prominent of which have been catalogued by E. E. Barnard as B88, B89 and B296. It also includes a funnel-like or tornado-like structure caused by a hot O-type star that emanates ultraviolet light, heating and ionizing gases on the surface of the nebula. The Lagoon Nebula also contains at its centre a structure known as the Hourglass Nebula (so named by John Herschel), which should not be confused with the better known Hourglass Nebula in the constellation of Musca. In 2006 the first four Herbig–Haro objects were detected within the Hourglass, also including HH 870. This provides the first direct evidence of active star formation by accretion within it



Matt Hughes
License: None (All rights reserved)

Sky plot

Sky plot


Lagoon nebula, M8 Hubble Palette, 


            Matt Hughes