IC 5146 - Cocoon Nebula - Stellar Daycare (Michael & Jon Norman)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon Nebula · IC 5146 · LBN 424 · LDN 1055 · Sh2-125 · VdB147

Image of the day 11/16/2021

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IC 5146 - Cocoon Nebula - Stellar Daycare

Link: https://www.instagram.com/nonjorman/

Image of the day 11/16/2021

Powered byPixInsight

IC 5146 - Cocoon Nebula - Stellar Daycare

Link: https://www.instagram.com/nonjorman/

IC 5146, the cocoon nebula, is a spectacular emission/reflection nebulae surrounded by a (frustratingly) faint interstellar dust. Faint as it may be, this dust plays a critical role within the cocoon nebula - acting as the source material for all the young stars that it spawns into existence. Conversely, these young stars are the reason for the stunning pink emission region within the core.

I found the contrast between emission and reflection regions within this nebula to be particularly interesting. Looking into the emission region, one notices the hues shift between deep magenta and bubblegum pink. This effect comes as the reflection and emission light sources within the nebula essentially overlap and the signals are mixed. As you migrate further away from the core, the intensity of the emission drops down and the reflection dominates - resulting in a fairly unique lavender colour. Finally, leaving the core, the remainder of the frame consists of faint dust punctuated with pockets of soft blue reflections. There is technically a faint hydrogen alpha molecular cloud surrounding the whole frame but 12 hours of exposure barely registered above the read noise in the background. To be explored further on a faster system….

Michael and Jonathan Norman

QHY Users Group

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Status	Advanced success
Started	...
Astrometry.net job	5195829
PixInsight job	PZI9ZFTDAPBEMGTRM25QBB3N7R54VQTN
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h53m13s.359
RA (top/left)	21h51m37s.696
RA (top/right)	21h52m28s.307
RA (bottom/right)	21h54m48s.531
RA (bottom/left)	21h53m58s.955

Dec (center)	+47°15′16″.16
Dec (top/left)	+47°22′37″.00
Dec (top/right)	+46°59′12″.85
Dec (bottom/right)	+47°07′51″.20
Dec (bottom/left)	+47°31′19″.28

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Image of the day 11/16/2021

IC 5146 - Cocoon Nebula - Stellar Daycare

Image of the day 11/16/2021

IC 5146 - Cocoon Nebula - Stellar Daycare

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Image of the day 11/16/2021

IC 5146 - Cocoon Nebula - Stellar Daycare

Image of the day 11/16/2021

IC 5146 - Cocoon Nebula - Stellar Daycare

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