Diving Shark - LDN 1235 (Peter Komatović)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 16 Cep · 24 Cep · B175 · HD208509 · HD210369 · HD210401 · HD210511 · HD210615 · HD210640 · HD210806 · HD210873 · HD210884 · HD210902 · HD211300 · HD211319 · HD211771 · HD211867 · HD211879 · HD212976 · HD213022 · HD213460 · HD213571 · LBN 528 · LBN 531 · LBN 535 · LBN 538 · LBN 541 · LBN 546 · LDN 1217 · LDN 1219 · And 7 more.

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Diving Shark - LDN 1235

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Diving Shark - LDN 1235

We had an extraordinary dark night for astrophotography on the 12th of August. The Perseid meteor shower was not very dense, but we saw quite a few bright ones in the dark sky above Kozjak. The conditions were almost perfect for imaging darker DSO objects.
In the morning, the 13% illuminated Moon, which is still visible in RGB astrophotography, was rising, and the high humidity ensured that the equipment actually "sweated".
I had the telescope pointed at the Shark Nebula - LDN 1235.
The smaller RedCat51 telescope allowed me to capture also the vdB 152 nebula ( LBN 531 ), a bright reflection nebula at the top of the dark gas column called Wolf's Cave - LDN 1217, in the same frame.

Equipment:
Mounting the Avalon M-UNO
Telescope WO RedCat51, 250 mm
ZWO ASI2600MC PRO camera cooled to -10˚ C
Astronomik L2 filter
62 shots of 300 seconds each (aprox. 5 h), gain 100, offset 50
Data aquisition with APT
Data preparation and processing in Pixinsight and Photoshop.
CS

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	8285665
PixInsight job	PV718XO9ITNQAYPQBI2KSUVTMSSXWAYO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h08m33s.94
RA (top/left)	21h39m49s.45
RA (top/right)	21h50m23s.61
RA (bottom/right)	22h30m29s.79
RA (bottom/left)	22h32m57s.80

Dec (center)	+71°56′23″.9
Dec (top/left)	+74°21′43″.7
Dec (top/right)	+69°07′35″.3
Dec (bottom/right)	+69°18′33″.2
Dec (bottom/left)	+74°36′39″.3

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Diving Shark - LDN 1235

Diving Shark - LDN 1235

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Diving Shark - LDN 1235

Diving Shark - LDN 1235

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