Celestial hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  M 7  ·  NGC 5878  ·  NGC 6453  ·  NGC 6475
Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 ), Mike
Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 )
Powered byPixInsight

Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 )

Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 ), Mike
Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 )
Powered byPixInsight

Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 )

Equipment

Loading...

Acquisition details

Loading...

Description

Ptolemy's Cluster in Scorpio ( Messier 7, NGC 6475 ).

Visible to the naked eye as a small bright patch in the sky, this open cluster is around 980 light years away with around 80 stars within a area of 25 light years or so.

Links:

500px.com/MikeODay

photo.net/photos/MikeODay

Details:

RA 17h 54m, Dec -34deg 47'.

Skywatcher Quattro 10" f4 Newtonian.

Skywatcher AZ Eq6 GT Mount

Orion auto guider - PHD2.

Baader MPCC Mark 3 Coma Corrector.

Nikon D300 (unmodified).

Field of view (deg) ~ 1.35 x 0.90.

18 x 30 sec ISO800.

23 May 14

Reprocessed Pixinsight 8 Sep 2015

Comments

Sky plot

Sky plot

Histogram

Ptolomy's Cluster in Scorpio ( Messier 7 , NGC 6475 ), Mike