Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330) (Paul Lloyd)

Celestial hemisphere: Southern · Constellation: Tucana (Tuc) · Contains: HD6536 · HD6623 · HD6655 · HD7031 · IC 1611 · IC 1612 · NGC 299 · NGC 306 · NGC 330 · NGC 346 · NGC 371 · NGC 395 · NGC 411 · NGC 416

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Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330)

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Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330)

The Small Magellanic Cloud has been considered as a satellite galaxy of our Milky Way Galaxy and lies
200,000 ly away. The three Open Cluster of stars prominent here lie within that galaxy, and consequently,
are very large structures (NGC 371 on the left is estimated at 350 ly across, compared to just 14 ly for
the Pleiades). They are also active regions of star formation, as the age of the constituent stars are
typically 10 My or younger. They are also very hot, very large type O and B class stars which typically
have short life spans. NGC 371 and NGC 346 (centre) have associated bright reflection nebulae from
which these stars have been born. NGC 330 (lower, right) is somewhat closer than the other two at
approx. 180,000 ly, and is older than them at an estimated 40 My. This image also contains a number of
other Open Clusters that are not so prominent.

Telescope: Askar 107PHQ f/7 750mm refractor
Camera: ZWO ASI294MC Pro, gain 125, bin 1x1, no filter
Exposure: 32 x 300 sec, Bortle 3-4 sky, moonless
Field of View: approx. 1º 24’ x 1º 0’
Image processed and prepared in PixInsight and Photoshop Elements

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Status	Advanced success
Started	...
Astrometry.net job	8392842
PixInsight job	Z58AASPXYDQCK6FVJ3MY2QU1NJI18Z8R
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h01m15s.62
RA (top/left)	01h10m02s.45
RA (top/right)	00h52m11s.62
RA (bottom/right)	00h51m59s.30
RA (bottom/left)	01h10m48s.72

Dec (center)	-72°07′33″.7
Dec (top/left)	-71°36′05″.3
Dec (top/right)	-71°37′51″.8
Dec (bottom/right)	-72°37′35″.0
Dec (bottom/left)	-72°35′35″.9

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Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330)

Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330)

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Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330)

Open Clusters in the Small Magellanic Cloud (NGC 371, NGC 346 & NGC 330)

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