Barnard 169-174 and the overlooked DA 568 and BFS 10 (Göran Nilsson)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 14 Cep · 15 Cep · B169 · B170 · B171 · B173 · B174 · LBN 474 · LBN 482 · LDN 1137 · LDN 1138 · LDN 1139 · LDN 1141 · LDN 1142 · LDN 1143 · LDN 1149 · LDN 1151 · LDN 1153 · LDN 1159 · LDN 1160 · LDN 1164 · LDN 1165 · LDN 1166 · LDN 1169 · The star 13 Cep · The star 14 Cep

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Barnard 169-174 and the overlooked DA 568 and BFS 10

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Barnard 169-174 and the overlooked DA 568 and BFS 10

Finally a long clear night, and I aimed at this area of dark nebulosity just to the east of the Elephant Trunk Nebula. I soon realized that there are other interesting objects here. Down to the right is a big round object of mainly Ha nebulosity and just above it there is a small but bright red object. After some search in the in the Simbad database I found that the larger area of Ha nebulosity is DA 568 and the smaller one is BFS 10 (aka WN B2154.8+5747). They were first found as strong radio emitting objects and not until 2004 described as Ha regions when Kerton et al (2004) devoted a whole paper to these overlooked objects (https://iopscience.iop.org/article/10.1086/381296/pdf).

This is what they look like as radio objects according to Kerton et al (2004). The big object seen to the right is the Elephant Trunk Nebula:

"Nordish by nature"
Hydrogen and Oxygen Narrowband Only!
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ZWO ASI 2600MC PRO

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Status	Advanced success
Started	...
Astrometry.net job	8856283
PixInsight job	1QIW5DO62G4G09W9JXESIEOYLTTUHT5V
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h00m36s.23
RA (top/left)	22h09m52s.92
RA (top/right)	21h50m37s.33
RA (bottom/right)	21h52m12s.73
RA (bottom/left)	22h09m39s.12

Dec (center)	+58°22′43″.0
Dec (top/left)	+60°07′32″.10
Dec (top/right)	+60°03′32″.6
Dec (bottom/right)	+56°35′37″.9
Dec (bottom/left)	+56°39′06″.6

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Barnard 169-174 and the overlooked DA 568 and BFS 10

Barnard 169-174 and the overlooked DA 568 and BFS 10

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Barnard 169-174 and the overlooked DA 568 and BFS 10

Barnard 169-174 and the overlooked DA 568 and BFS 10

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