Lobster Claw, Bubble, and friends in Cassiopeia (base16)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · HD218997 · HD219286 · HD219287 · HD219460 · HD219854 · HD220016 · HD220057 · HD220102 · HD220167 · HD220369 · HD240233 · HD240244 · HD240245 · HD240248 · HD240250 · HD240252 · HD240253 · HD240256 · HD240264 · HD240267 · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 542 · LBN 543 · LBN 544 · LBN 547 · LBN 548 · And 12 more.

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Lobster Claw, Bubble, and friends in Cassiopeia

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Lobster Claw, Bubble, and friends in Cassiopeia

This is a very busy and interesting area in Cassiopeia that spent the last two nights (in between clouds).

The Lobster Claw is a very large Sharpless object, Sh2-157, easily spotted by star-hopping from the famous W asterism in Cassiopeia if you have an NV device; without it, the only way to spot this would be through EAA or proper imaging. And of course, if you have a GoTo mount you can go straight to it :-)

The bubble nebula on the top right is a very famous target, and I have used it for testing/EAA previously but using longer FL scopes. With the wider scope, I can cover the entire perspective in one image.

There is one other target in this picture: NGC 7538 (bright one, towards the bottom right), a stellar nursery for massive stars. Located around 9000 light-years away, this is one of the few regions of massive star formation relatively close to us, allowing astronomers to investigate this process in great detail.

I was surprised to see a patch of globulars - NGC 7510 towards the bottom, right in the middle.

Overall, a very busy and interesting area!

Ha: 12x10min, bin1
Sii: 12x10min, bin1
Oiii: 16x10min, bin1

ZWO ASI2600MM Pro
N.I.N.A. Users

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Status	Advanced success
Started	...
Astrometry.net job	6248362
PixInsight job	H28EA5MKXD4VZVQ7QNLPLPQUJ7K5FNSQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h16m42s.63
RA (top/left)	23h23m59s.34
RA (top/right)	23h23m50s.94
RA (bottom/right)	23h08m49s.89
RA (bottom/left)	23h10m09s.43

Dec (center)	+60°32′24″.4
Dec (top/left)	+59°13′25″.1
Dec (top/right)	+61°53′33″.1
Dec (bottom/right)	+61°49′47″.8
Dec (bottom/left)	+59°10′00″.9

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Lobster Claw, Bubble, and friends in Cassiopeia

Lobster Claw, Bubble, and friends in Cassiopeia

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Lobster Claw, Bubble, and friends in Cassiopeia

Lobster Claw, Bubble, and friends in Cassiopeia

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