NGC 6188 (The Rm Nebula) & NGC 6164 (Jeff McClure)

Celestial hemisphere: Southern · Constellation: Ara (Ara) · Contains: HD147496 · HD147558 · HD147615 · HD147633 · HD147657 · HD147707 · HD147757 · HD147860 · HD147894 · HD147958 · HD147970 · HD148044 · HD148104 · HD148214 · HD148399 · HD148519 · HD148610 · HD148690 · HD148691 · HD148809 · HD148837 · HD148850 · HD148851 · HD148922 · HD148937 · HD148974 · HD148987 · HD148989 · HD149019 · HD149054 · And 98 more.

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NGC 6188 (The Rm Nebula) & NGC 6164

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NGC 6188 (The Rm Nebula) & NGC 6164

This is an image I captured on 6 July of NGC 6188 (the Rim Nebula, aka The Hand or the Fighting Dragons) and NGC 6164 in the southern constellation of Ara (not visible from the northern hemisphere). It is about 4,000 light-years from us and is a region of star formation with very young, extremely energetic stars, causing the molecular gas clouds from which they formed to fluoresce. Here, fluorescing hydrogen gas appears as green while excited oxygen shows as blue and sulfur glows red. Left center is the much smaller nebula, NGC 6164. If you zoom in to the roughly “S” shaped object, you can see that there are multiple shock waves radiating outward from it. The system (HD 150136) is composed of three stars in an unstable orbit around each other. Two of the stars are super-massive newly formed stars orbiting extremely fast in very close proximity to the other. Randomly they brush up against each other and create a massive explosion not unlike a nova, generating the multiple shock waves seen around them. They indeed are the essence of fighting dragons, with metaphorical claws extended, as seen in NGC 6188.

I captured the image using a rented, remotely operated telescope from the Heaven's Mirror Observatory near Yass, NWS, Australia. The scope was a Takahashi FSQ-106ED f-3.6, 100mm, and the camera was an FLI PL 16803. Exposures were 600 sec x2 in Ha, OIII, and SII for a total of one hour of exposure time. The host was kind enough to preprocess the raw data with darks and biases, although I did have to clean up some streaks. The resultant image is shown using the Hubble color palate after processing in Nebulosity 4 and Adobe Photoshop Lightroom Classic v. 10.4.

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Status	Advanced success
Started	...
Astrometry.net job	4726307
PixInsight job	OZIAG5GH7YJU0LILITMV562Y7KKM7228
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h39m58s.56
RA (top/left)	16h22m48s.62
RA (top/right)	16h56m37s.29
RA (bottom/right)	16h56m03s.59
RA (bottom/left)	16h24m30s.71

Dec (center)	-48°33′28″.3
Dec (top/left)	-50°12′21″.0
Dec (top/right)	-50°21′16″.8
Dec (bottom/right)	-46°45′40″.5
Dec (bottom/left)	-46°36′57″.3

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NGC 6188 (The Rm Nebula) & NGC 6164

NGC 6188 (The Rm Nebula) & NGC 6164

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NGC 6188 (The Rm Nebula) & NGC 6164

NGC 6188 (The Rm Nebula) & NGC 6164

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