Bug Nebula, NGC 6302 (Frank Alvaro)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: Bug Nebula · NGC 6302 · PK349+01.1

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Bug Nebula, NGC 6302

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Bug Nebula, NGC 6302

NGC 6302 (also known as the Bug Nebula, Butterfly Nebula, or Caldwell 69) is a bipolar planetary nebula 3800 light years away in the constellation Scorpius. The structure in the nebula is among the most complex ever seen in planetary nebulae. The spectrum of Butterfly Nebula shows that its central star is one of the hottest stars known, with a surface temperature in excess of 250,000 degrees Celsius, implying that the star from which it formed must have been very large. Hubble's Wide Field Camera 3 (WFC3) reveals a complex history of ejections from the star. The star first evolved into a red giant with a diameter of about 1,000 times that of our Sun. It then lost its extended outer layers. Some of this gas was cast off from its equator at a relatively slow speed, perhaps as low as 32,000 kph miles an hour, creating the torus. Other gas was ejected perpendicular to the ring at higher speeds, producing the elongated lobes or "wings" of the butterfly-shaped structure. Later, as the central star heated up, a much faster stellar wind (a stream of charged particles traveling at more than 3.2 million kph) plowed through the existing wing-shaped structure, further modifying its shape. (Wikipedia and hubblesite.org)

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Southern Hemisphere Astro
Australian Astrophotographers

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	9863898
PixInsight job	0D0OAWOBHW77ZNOVWZ5NQNJ1Y69AT1IR
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h13m42s.600
RA (top/left)	17h13m03s.339
RA (top/right)	17h14m30s.540
RA (bottom/right)	17h14m20s.536
RA (bottom/left)	17h12m53s.945

Dec (center)	-37°06′35″.59
Dec (top/left)	-37°13′18″.46
Dec (top/right)	-37°10′08″.22
Dec (bottom/right)	-36°59′48″.84
Dec (bottom/left)	-37°02′58″.47

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Bug Nebula, NGC 6302

Bug Nebula, NGC 6302

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Bug Nebula, NGC 6302

Bug Nebula, NGC 6302

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