Barnard 204 is a Dark Nebula appearing in the constellation Aries. It is 815 light years from our solar system.

Barnard 204 appears roughly 12.0 x 12.0 arcminutes in size, corresponding to a physical diameter of 9 light years.

(quote from SkySafari)

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Date and Place 2014-11-22 Daikura, Fukushima
2014-11-29 Ootawara, Tochigi
Scope Takahashi Epsilon180ED
Mount Celestron CGEM
Camera Atik383L+
Auto guiding Off-axis Lodestar + GPUSB
Filter Astrodon Tru-balance Gen.2 LRGB Filter 36[mm] Unmounted
Exposure L : 35x 900[s]
R : 8x 300[s], G : 8x 300[s], B : 8x 300[s]
Total : 685[min]
Software Astroart5 SP3 with SHS Version 4.0 beta 1
PHD Guiding 2.3.1
Sky Safari Pro 4.0.5
Stella Image 6