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NGC 7380 is an open
cluster discovered by
Caroline Herschel in 1787. Open cluster NGC 7380 is nicely intertwined
with a bright diffuse nebula which bears the catalog designation Sh2-142.
In order to produce the color image
seen here, I worked with data coming from 2
different photographic plates taken at Palomar Observatory between 1989
and 1991. The original file is 7,095x6,078
pixels with a resolution of about 1 arcsec per pixel. The image show an
area of sky large 2° x 1.7° (for
comparison, the full-Moon is about 0.5° in diameter). Other images of the same celestial field found online
This image is a composite from black and white images taken with the Palomar Observatory's 48-inch (1.2-meter) Samuel Oschin Telescope as a part of the second National Geographic Palomar Observatory Sky Survey (POSS II). The images were recorded on two type of glass photographic plates - one sensitive to red light and the other to blue light and later they were digitized. Credit: Caltech, Palomar Observatory, Digitized Sky Survey. |
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