NGC 7331 with surprise visitor. (Andrew)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: MQ J223629.89+342557.1 · MQ J223634.35+343736.3 · MQ J223658.78+345100.5 · MQ J223714.05+342719.1 · MQ J223718.80+343007.9 · MQ J223723.46+342639.9 · MQ J223729.16+342332.7 · MQ J223729.66+341636.9 · MQ J223732.36+342511.9 · MQ J223732.40+342927.2 · NGC 7327 · NGC 7331 · NGC 7333 · NGC 7335 · NGC 7336 · NGC 7337 · NGC 7338 · PGC 2051985 · PGC 3088708 · PGC 69281 · PGC 69291 · PGC 69360 · SDSS J223617.14+342810.6 · SDSS J223657.38+343630.9 · SDSS J223704.78+343202.9 · SDSS J223713.70+343350.5 · SDSS J223729.15+342524.5 · SDSS J223733.78+343457.5 · WISEA J223710.91+343022.2 · WISEA J223718.62+343405.4

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NGC 7331 with surprise visitor.

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NGC 7331 with surprise visitor.

I was imaging a luminance stack for NGC 7331, and I noticed in one of my 180" subs, I had a visitor in the form of a jet air liner. What struck me about this frame is that although the lights at the wing tips are streaks as expected, the fuselage looks kind of like a ghost plane, but the engines especially are in almost tack sharp focus! If anyone knows how this could come to be in a 180" exposure I'd love to know. To summarize, here we have NGC 7331, and next to it a jet air liner. Two streaks where the wingtip lights went through the frame, a ghostly looking fuselage, and two engines in almost perfect focus. Almost seems like a one and a million shot!

I ultimately ended up with a very nice stack of NGC 7331 and Stephan's Quintet, but this one exposure was probably the coolest I've ever gotten, despite not being able to use it in the final stack, due to RA tracking getting a big spike as a result of the jet messing with the guide star in the OAG.

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Title: Full frame of NGC 7331 visitor

Description: This is the full frame of the original image crop.

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Status	Advanced success
Started	...
Astrometry.net job	6254266
PixInsight job	DSC6XM666I2DWWP6W38MHQZSDT86UJCP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h36m58s.522
RA (top/left)	22h36m15s.852
RA (top/right)	22h36m16s.600
RA (bottom/right)	22h37m41s.261
RA (bottom/left)	22h37m41s.410

Dec (center)	+34°34′37″.50
Dec (top/left)	+34°52′56″.60
Dec (top/right)	+34°16′19″.62
Dec (bottom/right)	+34°16′15″.57
Dec (bottom/left)	+34°52′55″.69

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NGC 7331 with surprise visitor.

NGC 7331 with surprise visitor.

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NGC 7331 with surprise visitor.

NGC 7331 with surprise visitor.

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