Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp). (Claudio Tenreiro)

Celestial hemisphere: Southern · Constellation: Puppis (Pup) · Contains: PGC 149778 · PGC 149785 · PGC 149803 · PGC 20574 · PGC 20588 · PGC 20590 · PGC 20630 · PGC 3081387 · PGC 3081388 · PGC 628428 · PGC 631519 · PGC 636071 · PGC 636507 · PGC 636688 · PGC 637040 · PGC 637270 · PGC 637842 · PGC 638454 · PGC 639160 · The star πPup · pi. Pup · v01 Pup · v02 Pup

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Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp).

Revision title: New stretching

Powered byPixInsight

Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp).

Revision title: New stretching

This one of the many nice star groups, quite a cluster, it suppose to be composed by 16 stars. This one is called the Pi Puppis cluster, since the nice yellow star is pi Puppis or Ahadi.

The category of cluster or just star group of this object has been discussed in the technical literature in the past. This particular open cluster is discussed by H. Baumgardt, in Astron. Astrophys. 340, 402–414 ( 1998 ) There are more recent works on it by my motivation was the surroundings of the cluster as well as the stars in it.

Due to the Moon and weather, the image was captured in 3 consecutive days.

Original
Final
B

B

Title: New stretching

Description: I did apply a more traditional stretching to avoid the stars to become too prominent, so separate stretching of the background was done, before the colour punch.

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Status	Advanced success
Started	...
Astrometry.net job	5352328
PixInsight job	R7BSQLEOBYALIDTURCOVCA4YF4FD8NTC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h17m59s.32
RA (top/left)	07h21m01s.89
RA (top/right)	07h21m03s.10
RA (bottom/right)	07h15m01s.12
RA (bottom/left)	07h14m51s.70

Dec (center)	-37°09′22″.9
Dec (top/left)	-38°04′22″.2
Dec (top/right)	-36°14′50″.8
Dec (bottom/right)	-36°14′06″.6
Dec (bottom/left)	-38°03′36″.9

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Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp).

Revision title: New stretching

Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp).

Revision title: New stretching

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Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp).

Revision title: New stretching

Collinder 135 - star group/cluster in Puppis dominated by Ahadi (Pi Pupp).

Revision title: New stretching

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