Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B304  ·  B307  ·  B92  ·  B93  ·  IC 1283  ·  IC 1284  ·  IC 4701  ·  IC 4715  ·  M 18  ·  M 24  ·  NGC 6567  ·  NGC 6589  ·  NGC 6590  ·  NGC 6595  ·  NGC 6596  ·  NGC 6603  ·  NGC 6613  ·  Small Sgr Star Cloud  ·  Y Sgr
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Messier 24 - Small Sagittarius Star Cloud, 



    
        

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Messier 24 - Small Sagittarius Star Cloud

Getting plate-solving status, please wait...
Messier 24 - Small Sagittarius Star Cloud, 



    
        

            Sigga
Powered byPixInsight

Messier 24 - Small Sagittarius Star Cloud

Imaging telescopes or lenses: Takahashi FSQ 106ED f/5

Imaging cameras: SBIG STL-11000M

Mounts: Paramount MyT Paramount MyT

Software: Adobe Lightroom 5  ·  Mac OS X Snow Leopard  ·  Adobe Photoshop CS2  ·  Deepskystacker 4.1.1  ·  Fitswork 4.4.7

Filters: Astrodon LRGB + Ha

Accessory: NR Surtur 8.4 Imperial Stout  ·  Almonds  ·  Sky Atlas 2000  ·  My Cat Sne  ·  Reading Glasses!!!


Dates:June 12, 2021

Frames: 4x360" (24')

Integration: 24'

Avg. Moon age: 1.87 days

Avg. Moon phase: 3.93%


Astrometry.net job: 4645417

RA center: 18h 16' 47"

DEC center: -18° 13' 11"

Pixel scale: 6.983 arcsec/pixel

Orientation: -5.431 degrees

Field radius: 2.335 degrees


Resolution: 1336x2004

Locations: ORM, La Palma, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

M24, also known as the Small Sagittarius Star Cloud, is a large naked eye expanse of stars, clusters, nebulosity and other objects located in Sagittarius. At mag. +2.5 and covering 1.5 degrees of sky, it's visible to the naked eye as a large detached part of the Milky Way. The object is a fantastic sight in binoculars and small telescopes. It's claimed that M24 has the densest concentration of individual stars visible, around a thousand, in a single binocular field of view. It should not be confused with the nearby Large Sagittarius Star Cloud which lies about ten degrees to the south.

The Small Sagittarius Star Cloud is not a true deep sky object but results from a rare alignment between the Earth and the centre of our galaxy. We would expect this region to be packed with interstellar dust, however by chance we are looking through a gap in the dust. As a result, many thousands of distant stars, clusters and nebulae are visible that would otherwise be obscured. Spatially, M24 covers a volume up to 16,000 light-years deep.

M24 can be found 7 degrees north and a little west of the top star of the bright teapot asterism, Kaus Borealis (λ Sgr - mag. +2.. Positioned north of M24 is open cluster M18 and the Omega Nebula (M17). All three objects are visible in the same binocular field of view. Open clusters M23 and M25 are located a few degrees west and east of M24 respectively.

M24 was discovered by Charles Messier on June 20, 1764. It's best seen from southern or equatorial latitudes during the months of June, July and August.

4 x 360 seconds LRGB. Idea for this from my friend Harald (AC1000) who did excellent wide field version.

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Messier 24 - Small Sagittarius Star Cloud, 



    
        

            Sigga