LBN 438 - A Dune Worm (Alberto Pisabarro)

Celestial hemisphere: Northern · Constellation: Lacerta (Lac) · Contains: HD214652 · HD214714 · HD214716 · HD214807 · HD215181 · HD215191 · HD215212 · HD215327 · LBN 435 · LBN 438 · LBN 440 · PGC 2095590 · PGC 2096501 · PGC 2098398 · PGC 2099212 · PGC 2099496 · PGC 2100473 · PGC 2101898 · PGC 2103324 · PGC 2103859 · PGC 2103920 · PGC 2105629 · PGC 2106798 · PGC 2110730 · PGC 2112618 · PGC 2113324 · PGC 2114780 · PGC 2119110 · PGC 2121517 · PGC 214866 · And 5 more.

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LBN 438 - A Dune Worm

Link: https://www.loscoloresinvisibles.com/copia-de-galeria-rgb?pgid=jzuz311l-9330dd38-b854-4145-b629-264bc799f150

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LBN 438 - A Dune Worm

Link: https://www.loscoloresinvisibles.com/copia-de-galeria-rgb?pgid=jzuz311l-9330dd38-b854-4145-b629-264bc799f150

LBN 438 is a dusty nebula located in the constellation Lacerta, known as the sandworm or shark nebula. It is a really faint nebula, it is illuminated by a type of interstellar radiation known as Extended Red Emission (ERE). ERE is a relatively recent discovery, at the end of the 20th century, it is a photoluminescence process by which hydrogenated amorphous carbon (Carbon without crystalline structure) is illuminated by interstellar photons. The nebula also contains ionized hydrogen, but emits a relatively weak Ha signal, so I decided to use broadband and Ha filters to capture this object, trying to go very deep in Ha, this image contains about 23h of Ha.
At the top of the nebula there is a reddish glow, which I assume is due to ERE, since the glow is brighter than the rest of the Ha present in the image. If you look closely at the background of the image you will be able to see several small galaxies.

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Status	Advanced success
Started	...
Astrometry.net job	8697573
PixInsight job	NRRTNDLTKM0W5GNQEUYPXDSULYXZ0GGD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h42m08s.56
RA (top/left)	22h47m39s.45
RA (top/right)	22h39m00s.59
RA (bottom/right)	22h36m38s.95
RA (bottom/left)	22h45m11s.80

Dec (center)	+37°42′23″.0
Dec (top/left)	+37°56′54″.9
Dec (top/right)	+38°38′22″.2
Dec (bottom/right)	+37°26′58″.7
Dec (bottom/left)	+36°46′04″.6

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LBN 438 - A Dune Worm

LBN 438 - A Dune Worm

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LBN 438 - A Dune Worm

LBN 438 - A Dune Worm

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