IC1311 at the edge of the Gamma Cygni Nebula (lowenthalm)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: IC 1311 · TYC3155-1099-1 · TYC3155-1153-1 · TYC3155-1227-1 · TYC3155-1345-1 · TYC3155-1369-1 · TYC3155-1469-1 · TYC3155-1523-1 · TYC3155-1547-1 · TYC3155-1591-1 · TYC3155-511-1 · TYC3155-514-1 · TYC3155-535-1 · TYC3155-559-1 · TYC3155-571-1 · TYC3155-895-1 · TYC3155-969-1 · TYC3155-973-1 · TYC3155-989-1 · TYC3155-995-1 · TYC3159-503-1 · TYC3159-575-1 · TYC3159-615-1 · TYC3159-665-1 · TYC3159-715-1 · TYC3159-873-1 · TYC3159-933-1 · TYC3159-977-1 · V1310 Cyg · V1312 Cyg · And 3 more.

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IC1311 at the edge of the Gamma Cygni Nebula

Acquisition type: Lucky imaging

Powered byPixInsight

IC1311 at the edge of the Gamma Cygni Nebula

Acquisition type: Lucky imaging

I was mostly shooting for open cluster IC1311 about half an hour before moonset of a half moon. The transparency this night was excellent and I got some of the edge of the Gamma Cygni nebula (IC1318 ) as a bonus, despite a short integration time of only 24 minutes intended to only capture the open cluster. I resized the image to 66.7% of its original size since the large file size seemed unneeded to show the cluster well.

This dense open cluster is roughly 8,000 parsecs away (using 2018 Gaia parallax data). There are several hundred stars in the cluster.

The "hot pixel" red star to the right of lower center is not a hot pixel, but in fact the long period Mira-type variable V1629 Cyg with a variable period of 460 days during which it dims and brightens by about a magnitude. It is surrounded by a very dusty envelop of ejected matter (probably a lot of carbon) that absorbs most wavelengths shorter than red, and so emitting almost no green and blue light which gives the crazy high saturated red you see here.

Each of the subs was composed of 240 one second exposures live stacked in SharpCap.

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Status	Advanced success
Started	...
Astrometry.net job	4768199
PixInsight job	V1CAM8BIIFCJENNZM8GZQUJC6MIUESD0
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h10m47s.113
RA (top/left)	20h10m28s.471
RA (top/right)	20h09m31s.376
RA (bottom/right)	20h11m05s.556
RA (bottom/left)	20h12m03s.850

Dec (center)	+41°10′25″.100
Dec (top/left)	+41°27′29″.37
Dec (top/right)	+41°00′24″.70
Dec (bottom/right)	+40°53′21″.37
Dec (bottom/left)	+41°20′23″.48

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IC1311 at the edge of the Gamma Cygni Nebula

IC1311 at the edge of the Gamma Cygni Nebula

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IC1311 at the edge of the Gamma Cygni Nebula

IC1311 at the edge of the Gamma Cygni Nebula

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