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Contains:  NGC 3532, Part of the constellation Carina (Car)
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NGC 3532/Caldwell 91 Open Cluster in Carina LRGB, 


NGC 3532/Caldwell 91 Open Cluster in Carina LRGB

NGC 3532/Caldwell 91 Open Cluster in Carina LRGB

Technical card

Resolution: 2004x1336

Dates:March 31, 2019

Frames: 6x300"

Integration: 0.5 hours

Avg. Moon age: 25.12 days

Avg. Moon phase: 20.45%

Bortle Dark-Sky Scale: 1.00 job: 2631999

RA center: 166.423 degrees

DEC center: -58.739 degrees

Pixel scale: 7.005 arcsec/pixel

Orientation: 4.766 degrees

Field radius: 2.343 degrees

Locations: Chile, Coquimbo Region, Chile

Data source: Own remote observatory


NGC 3532 (Caldwell 91)] also commonly known as the Pincushion Cluster, Football Cluster, and the Wishing Well Cluster, is an open cluster some 405 parsecs from Earth in the constellation Carina. Its population of approximately 150 stars of 7th magnitude or fainter includes seven red giants and seven white dwarfs. On 20 May 1990 it became the first target ever observed by the Hubble Space Telescope.

The cluster was first catalogued by Nicolas Louis de Lacaille in 1751. It was admired by John Herschel, who thought it one of the finest star clusters in the sky, with many double stars (binary stars).

Was looking for clusters in rich star fields in Sky Atlas 2000, this seem as good candidate and surpassed expectations. 3 x 300 L, 1 x 300 each RGB.



License: None (All rights reserved)

Sky plot

Sky plot


NGC 3532/Caldwell 91 Open Cluster in Carina LRGB,