Interesting region close to alpha 1 crux, wide field and details (Claudio Tenreiro)

Celestial hemisphere: Southern · Constellation: Crux (Cru) · Contains: Coalsack Cluster · HD109124 · HD109137 · HD109243 · HD109266 · HD109314 · HD109327 · HD109343 · HD109474 · HD109475 · HD109477 · HD109492 · HD109493 · HD109504 · HD109505 · HD109517 · HD109528 · HD109550 · HD109612 · HD109644 · HD109678 · HD109699 · HD109728 · HD109809 · HD109810 · HD109819 · HD109831 · HD109866 · HD109891 · HD109978 · And 68 more.

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Interesting region close to alpha 1 crux, wide field and details

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Interesting region close to alpha 1 crux, wide field and details

The region somewhat "inside" the southern cross has several interesting objects, some of them are in this image. At the top left there is light from a nearby star giving that bluish reflection. On the right hand side, starting from the top you have Gum43 (RCW 65) and the OC Ruprecht 105, next going down from there there is a composite region of Gum 44 (RCW 66, also a bit of RCW 67) , in the lower part, to the left you have Gum 45 (RCW 69) which is a quite interesting object. Below to the centre you have the classic OC NGC 4609 in company of the small OC Hogg 15.
Gum 45 is what is called a bipolar planetary nebula, it is mention in this article dedicated to new bipolar planetary nebulas. Normally is named as RCW 69, originally assigned as a HII region.
I have included as revision B and C expanded areas of this image, to show more detailed views of these objects. D is a BW version of the C image.

Final
Original
B
C
D

B

Title: Gum 43 an 44

Description: Details of the upper right hand side objects

Uploaded: ...

C

Title: Gum 45 (RCW 69) and NGC 4609

Description: Detail of the lower left hand side objects.

Uploaded: ...

D

Title: Black and white image of RCW 69

Description: Just to compare with the image of RCW 69 on the paper I produced this BW image, of course I do not pretend to get the same result with my gear and my location as the one in the paper, but for a bit of un is nice.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	9628257
PixInsight job	M1EQ1P0T1HAVKBVLBCC25R5CMB2FQCT0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h39m10s.11
RA (top/left)	12h44m36s.84
RA (top/right)	12h32m17s.38
RA (bottom/right)	12h33m17s.22
RA (bottom/left)	12h46m32s.96

Dec (center)	-62°12′41″.1
Dec (top/left)	-61°01′44″.4
Dec (top/right)	-61°08′21″.3
Dec (bottom/right)	-63°22′46″.5
Dec (bottom/left)	-63°15′40″.9

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Interesting region close to alpha 1 crux, wide field and details

Interesting region close to alpha 1 crux, wide field and details

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Interesting region close to alpha 1 crux, wide field and details

Interesting region close to alpha 1 crux, wide field and details

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