The Squid and Bat after 2 hours with RASA8 (Göran Nilsson)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B152 · Sh2-129 · VdB140

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The Squid and Bat after 2 hours with RASA8

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The Squid and Bat after 2 hours with RASA8

This is work in progress - I aim to get more data very soon. After a month of constant clouds I managed to get 27 x 5 min (so just over two hours) of data on the Squid (Ou4) and Bat (Sh2-129) nebulae last night. As everyone (here) knows the Bat nebula is an extremely faint object so I had no expectations more than maybe to see if it would be worth while to do it properly with many hours. The ASI2600MC is attached to the scope with a new dedicated adapter from Artesky (less flimsy than the supplied Celestron one) that also has threading for a 2" filter. So in there I put a new filter, an IDAS NBX dual band (Ha + Oiii) filter that is made for fast systems like the f/2 RASA. Maybe the Artesky adapter is the reason I could not see any annoying amount of tilt this time.

Here is the result. I aim/hope to get more data over the next few nights but I think this proves that the RASA 8 is a real light bucket, that the ASI2600MC is a very sensitive camera, and that a dual band filter works quite well on OSC cameras.

Sharpless2 Objects
Celestron RASA

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Status	Advanced success
Started	...
Astrometry.net job	4025705
PixInsight job	8A8EDX6CPQ2927LEW714G9VIY2XVSNSY
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h12m14s.20
RA (top/left)	21h00m52s.35
RA (top/right)	21h03m37s.83
RA (bottom/right)	21h22m29s.21
RA (bottom/left)	21h21m51s.38

Dec (center)	+59°56′53″.1
Dec (top/left)	+61°38′28″.4
Dec (top/right)	+58°03′26″.8
Dec (bottom/right)	+58°11′51″.4
Dec (bottom/left)	+61°47′52″.0

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The Squid and Bat after 2 hours with RASA8

The Squid and Bat after 2 hours with RASA8

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The Squid and Bat after 2 hours with RASA8

The Squid and Bat after 2 hours with RASA8

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