Eta Carinae and the Homunculus Nebula (Rolf Olsen)

Celestial hemisphere: Southern · Constellation: Carina (Car) · Contains: Foramen · HD303308 · HD303310 · HD303311 · HD93128 · HD93160 · HD93161 · HD93162 · HD93204 · HD93205 · HD93250 · HD93403 · HD93420 · HD93500 · HD93723 · eta Car

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Eta Carinae and the Homunculus Nebula

Link: https://www.rolfolsenastrophotography.com/Astrophotography/Light-Echoes-from-Eta-Carinae

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Eta Carinae and the Homunculus Nebula

Link: https://www.rolfolsenastrophotography.com/Astrophotography/Light-Echoes-from-Eta-Carinae

This image shows the unstable LBV star Eta Carinae surrounded by the Homunculus Nebula, two mushroom-shaped lobes ejected by the star, each of which is hundreds of times larger than our solar system. The gas in the nebula is known to have been ejected from the star at speeds of up to 2000 km/s.
The insert at the bottom left shows the Homunculus Nebula in details a imaged by the Hubble Space Telescope in 2008.

Eta Carinae is a massive binary star system located in the Carina constellation, situated approximately 7,500 light-years away from Earth. The system consists of two massive stars orbiting each other in a highly eccentric orbit. Eta Carinae is particularly noteworthy for its extraordinary variability and historical outbursts.
The primary star, Eta Carinae A, is one of the most massive binary systems known, and its exact mass remains a topic of scientific investigation. The secondary star, Eta Carinae B, is also a massive star, but it is significantly less massive than its companion. The two stars orbit each other with a period of about 5.5 years.
Eta Carinae gained widespread attention due to a major outburst that occurred in the mid-19th century, making it one of the brightest stars in the night sky during that time. This event, known as the Great Eruption, expelled a massive amount of material into space, forming the iconic Homunculus Nebula. It is believed that Eta Carinae may explode as a spectacular supernova within the next few thousand years.Image details:Feb-Mar 2022, Ha OIII: 240:375 mins, total 10 hours 15 mins @ -25C
Homunculus Nebula: L 122 x 0.4s, Ha 16 x 0.4s @ -25C

Telescope: Homebuilt 12.5" f/4 Serrurier Truss Newtonian
Camera: QSI 683wsg with Lodestar guider
Filters: Astrodon 3nm Ha/OIII and LRGB E-Series Gen 2
Taken from my observatory in Auckland, New Zealand

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Status	Advanced success
Started	...
Astrometry.net job	9248397
PixInsight job	9VT4LKC173P17GU39WJTOE2P2S2Q4W3X
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h45m27s.985
RA (top/left)	10h48m15s.868
RA (top/right)	10h42m43s.850
RA (bottom/right)	10h42m39s.410
RA (bottom/left)	10h48m15s.790

Dec (center)	-59°37′42″.58
Dec (top/left)	-59°23′29″.82
Dec (top/right)	-59°23′22″.77
Dec (bottom/right)	-59°51′30″.31
Dec (bottom/left)	-59°52′05″.94

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Eta Carinae and the Homunculus Nebula

Eta Carinae and the Homunculus Nebula

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Eta Carinae and the Homunculus Nebula

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