NGC 2018 LMC SuperBubble (Alex Woronow)

Celestial hemisphere: Southern · Constellation: Mensa (Men) · Contains: NGC 2010 · NGC 2018 · NGC 2031

NGC 2018 LMC SuperBubble

NGC 2018 LMC SuperBubble

OTA: CDK24” f/6.5
Camera: Moravian C3-61000 Pro, 2x2 binned at capture
Observatory: Heaven's Mirror, Chile

Exposures:
R: 6 x 180 sec
G: 6 x 180
B: 6 x 180
H: 14 x 900 sec
O: 20 x 900
Total Exposure time used: 9.4 hours
Image Width: 28.5 arcminutes

Also known as N 44, this "bubble" comprises the remains of a supernova explosion in the Large Magellanic Cloud. This object is about 700,000 ly distant, so each pixel in these pictures covers about 2.7x10^13 km. (The apparently "small" features in this image are not all that small in reality.)

The supernova explosion triggered bursts of star formation in the surrounding pre-existing gas and the ejected gas as the two gas clouds collided at hypersonic speeds. These clusters made new bubbles as the stars ignited and ejected gas. The complexity of arcs and bubbles attests to the ongoing violence in this region.

Processing: PixInsight, Topaz Studio2, custom image weighting, and star replacement scripts. Both images are in approximated "true color" with the HO (not HOO) image and narrowband components of the HORGB images constructed from the isolated emission-line radiation. These blinked images provide a nice comparison of the pros and cons of the two methods of utilizing narrowband image data.

Alex Woronow

Final
Original
B

B

Title: HORGB

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	7774342
PixInsight job	YNKH70TGITHJNZQTRGM9QZ2UQKJZTNAF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h30m50s.192
RA (top/left)	05h27m18s.563
RA (top/right)	05h32m28s.125
RA (bottom/right)	05h34m21s.696
RA (bottom/left)	05h29m15s.120

Dec (center)	-70°59′16″.41
Dec (top/left)	-71°00′49″.60
Dec (top/right)	-71°14′41″.26
Dec (bottom/right)	-70°57′28″.70
Dec (bottom/left)	-70°43′49″.36

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NGC 2018 LMC SuperBubble

NGC 2018 LMC SuperBubble

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Image Index:

Contribution Index (beta):

NGC 2018 LMC SuperBubble

NGC 2018 LMC SuperBubble

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

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