0U4, the Giant Squid in SH2-129 (Icarulus)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD201063 · HD201344 · HD201429 · HD202214 · HD202380 · HD203025 · HD203338 · HD203339 · HD239582 · HD239605 · HD239618 · HD239626 · LBN 441 · LBN 445 · LBN 446 · LBN 449 · LBN 453 · Sh2-129

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0U4, the Giant Squid in SH2-129

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0U4, the Giant Squid in SH2-129

Image en HOO de OU4, une nébuleuse planétaire bipolaire découverte par un amateur français, Nicolas Outters, en 2011. Elle apparaît au milieu de la nébuleuse de la chauve-souris(SH2-129) dans la constellation de Céphée. C’est un objet de grande taille (1,2 degré) situé à seulement 2 300 années-lumière de la Terre, mais il est à peine visible. Il émet uniquement en O3, formant, au milieu de l’océan rouge des nébuleuses visibles en Ha, une bulle bleu en forme de calmar qui lui a valu le nom de « Giant Squid ». Cette nébuleuse est ionisée par une étoile triple qui brille en son centre (HR8119) et qui est probablement à l’origine de son émission il y a 90 000 ans.

HOO picture of OU4, a bipolar planetary nebula discovered by French amateur Nicolas Outters in 2011. It appears in the middle of the Flying Bat Nebula (SH2-129) in the constellation Cepheus. It's a large object (1.2 degree) just 2,300 light-years from Earth, but very faint. It emits only in O3, forming a squid-like blue bubble in the middle of the red ocean of nebulae visible in Ha, which has earned it the name "Giant Squid". This nebula is ionized by a triple star shining at its center (HR8119), probably responsible for its emission 90,000 years ago.

Deep Sky Northern Hemisphere

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Status	Advanced success
Started	...
Astrometry.net job	8419405
PixInsight job	01R3TBGM4YY364I2GUSHNNCVU0POJ0KP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h11m53s.976
RA (top/left)	20h58m29s.328
RA (top/right)	21h18m15s.436
RA (bottom/right)	21h25m32s.781
RA (bottom/left)	21h04m55s.742

Dec (center)	+59°52′25″.52
Dec (top/left)	+59°32′42″.50
Dec (top/right)	+58°21′32″.96
Dec (bottom/right)	+60°07′04″.12
Dec (bottom/left)	+61°22′19″.25

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0U4, the Giant Squid in SH2-129

0U4, the Giant Squid in SH2-129

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