Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Hemisphere:  Southern  ·  Contains:  B287, M 7, M7, NGC 6475, PK355-04.2, Ptolemy cluster
Getting plate-solving status, please wait...
M7 - Ptolemy´ s Cluster, 


            Daniel Nobre
Powered byPixInsight

M7 - Ptolemy´ s Cluster

Imaging telescopes or lenses: GSO Ritchey Chretien 200mm F/8

Imaging cameras: Canon 450D modified

Mounts: iOptron iEQ45

Guiding telescopes or lenses: Orion ED80 apochromatic refractor Orion ED80

Guiding cameras: QHY5L-II-M QHY5L II mono

Focal reducers: Astro-Physics CCD tele compressor CCDT67 - 0.67x Reducer

Software: Pleiades Astrophoto PixInsight 1.8 Ripley  ·  PHD2 Guiding

Filters: Orion SkyGlow Astrophotography Filter 2 inch Orion Sky Glow 2"

Accessory: Telrad  ·  Shoestring Astronomy GPUSB

Dates:May 26, 2017

Frames: 45x240"

Integration: 3.0 hours

Avg. Moon age: 0.79 days

Avg. Moon phase: 0.71% job: 1592344

RA center: 17h 53' 51"

DEC center: -34° 50' 26"

Pixel scale: 1.012 arcsec/pixel

Orientation: -130.150 degrees

Field radius: 0.646 degrees

Resolution: 3861x2493

Locations: Pandora Observatory, Pindamonhangaba, Sao Paulo, Brazil


Hi! This is my 3-hour Ptolemys cluster image integration and processing attempt @ fair weather...this is one of my difficult images I tried to take... and after that I had to face and begin removing the inumerous "glitches and challenges" of this simple image! I could crop the bottom to remove some artifacts a little bit but I want to keep the two stars...Hope you enjoy ! :-)



Daniel Nobre

Sky plot

Sky plot


M7 - Ptolemy´ s Cluster, 


            Daniel Nobre