IC 410: A Molecular Cloud in Turmoil (Alex Woronow)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: IC 410 · NGC 1893 · Sh2-236 · VdB39

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IC 410: A Molecular Cloud in Turmoil

Powered byPixInsight

IC 410: A Molecular Cloud in Turmoil

IC 410: A Molecular Cloud in Turmoil

OTA: Star-Fire 175 (f/8)

Camera: FLI - PL16070AE

Observatory: Deep Sky West

EXPOSURES:

Hydrogen:…..13 x 1800 seconds

Sulfur:…………12 x 1800

Oxygen:……..15 x 1800

Total exposure: 25 hours

Image Width: 1.3 degs

Processed by Alex Woronow using PixInsight, Topaz, 3DLut, Skylum, SWT

This nebula’s popular name, “Tadpole Nebula” comes from the small feature on its edge at about 7:00 in this image. Most (but hardly all) processing of this target targets emphasizing this feature and consequently enhance the Tadpole’s contrasting elements even if it costs resolution elsewhere. This rendering has attempted to reveal the plethora of detail available across the entire image, admittedly somewhat humbling the poor Tadpoles—but, c’est la gare!

Tadpoles, which exist in many active molecular clouds, arise in clouds being actively carved by supersonic winds and intense UV radiation generated from new and young stars. No surprise that multiple new stars, and even multiple clusters of new stars, generate a complexity of winds, radiation, and, consequently, complexity of interactions with their surrounding natal cloud.

IC 401, when processed in the manner shown here, resembles the Rosette Nebula; a giant molecular cloud with a nascent star cluster at its center that pushes the gases and dust outward to form a donut-like cloud glowing, predominantly, by HII radiation. Here the central star cluster, NGC 1893, does not stand out as clearly as it does in the Rosette Nebula, but it is indeed the energy source determining the IC 410’s shape and illumination. (NGC 1893 lies just below the blackish areas in the nebula; probably many of its stars are concealed in the cloud.)

Astroimaging from Chile

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Status	Advanced success
Started	...
Astrometry.net job	4074757
PixInsight job	KCY45T31DNVJY3RMFB07Z2ECK5Q659J1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	05h22m44s.42
RA (top/left)	05h20m30s.53
RA (top/right)	05h20m41s.69
RA (bottom/right)	05h24m56s.43
RA (bottom/left)	05h24m49s.30

Dec (center)	+33°26′54″.6
Dec (top/left)	+34°05′40″.8
Dec (top/right)	+32°46′46″.6
Dec (bottom/right)	+32°48′04″.3
Dec (bottom/left)	+34°06′58″.1

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IC 410: A Molecular Cloud in Turmoil

IC 410: A Molecular Cloud in Turmoil

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IC 410: A Molecular Cloud in Turmoil

IC 410: A Molecular Cloud in Turmoil

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