Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5 (Andrea Storani)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5, Andrea Storani

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Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5

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Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5

This complex region resembles a ghostly apparition flying upward in this view, with a bright glowing blue heart and dim brown body floating behind. LDN 1217 (aka Barnard 175) is a Bok globule - a region where dust condenses to form protostars. On the left side the blue reflection nebula. The nebula is illuminated by the bright star embedded within it. Curiously, though, the star's motion through space indicates that it is not formed from the condensing nebula - rather it is passing through the dark nebula Barnard 175, causing collisional and ultraviolet excitation, producing the reflection nebula Cederblad 201. Together, the dark and reflection nebulae are called Van den Bergh 152. The term Wolf ’s Cave is named after Max Wolf who discovered the “long, dark lacuna” in 1908. Since 1934 when Hubble studied this region, it has been called the Cepheus Flare.

Dengel-Hartl 5 (small spheric region red and blue on top) is a large, ancient planetary nebula is estimated to be 1300 - 1600 light years distant, making it one of nearest known PN.

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Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5

Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5

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Wolf ’s Cave (Barnard 175 + vdB 152) - DeHt 5

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