Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  56 Cyg  ·  57 Cyg  ·  B349  ·  IC 5070  ·  NGC 6997  ·  Pelican nebula  ·  The star 56Cyg  ·  The star 57Cyg
Pelican HOO vs Near Infrared animation, Andreas Zeinert
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Pelican HOO vs Near Infrared animation

Pelican HOO vs Near Infrared animation, Andreas Zeinert
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Pelican HOO vs Near Infrared animation

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Description

This is a comparison between an HOO image and a picture taken in the near infrared (with Astrodon sloan Z'2 filter) done at the same night. The infrared filter lets pass radiation above 800 nm. Its picture exhibits more stars as the infrared is less absorbed by dust but also as the bandpass is wider ( these effects are more than compensating lower quantum efficiecy of the sensor).

Interesting, there is a weak signal of the Pelican nebula in the infrared too. Enjoy/

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Sky plot

Sky plot