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Barnard 142 and 143

Dark Nebulae in Aquila (the E-Nebula or Triple Cave)
(Barnard's Catalogue of Dark Nebulae)

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Date:31.05.06 Time:2:25 UT Exposure:25 min
Field of View:3.9o x 4.6o Emulsion: Fuji Provia 400F Filter:none
Instrument:f=300mm 1/4.0 Place:Hakos, Namibia Observer:Till Credner

© Copyright by the observers

Take your binoculars in a dark summer night and watch for the brightest star in the constellation of Aquila: Atair (also called Altair). At the same time you will see gamma Aquilae about two degrees into north-west direction and myriads of fainter stars right in between the rich summer milky way. Just 1.5 degrees west you might remark small regions with considerable less stars. These are the dark nebulae Barnard 142/143, also called the E-nebula or triple cave nebula due to its shape. There are no holes in the starry sky but interstellar dust clouds which block light from the stars behind.

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