Observation by Peter Goodhew FRAS: R Aquarii
Uploaded by
Peter Goodhew FRAS
Observer
Peter Goodhew FRAS
Observed
2023 Dec 11 - 08:43
Uploaded
2023 Dec 21 - 08:49
Objects
R-Aqr
Equipment
- APM TMB LZOS 152 telescope
- QSI6120wsg8 cameras
- 10Micron GM2000 HPS mount
- ZWO ASI6200MM Pro
- Celestron EdgeHD 14"
- 10Micron GM3000 HPS mount
Exposure
58 hours 30 minutes HaOIIIRGB
Location
Fregenal de la Sierra
Target name
R Aquarii
Title
R Aquarii
About this image
R Aquarii is a symbiotic binary surrounded by a large and complex nebula known as Cederblad 211 with a prominent curved jet.
This nebula is roughly 650 years old. R Aquarii is believed to contain a white dwarf and a Mira-type variable in a binary system. The orbital period is approximately 44 years.
The giant primary star is a Mira variable, a star that pulsates and changes temperature, leading to very large visual brightness changes.
In total it varies in brightness by a factor of 750, and with a period of 390 days.
The central region of the jet shows an ejection that took place around 190 years ago, as well as much younger structures
In 2018 Mike Sidonio discovered previously unknown faint outer features from his Terroux Observatory near Canberra, Australia (https://pbase.com/strongmanmike2002/r_aquarii).
These were featured in a paper by Limmets and collaborators in 2018 (New insights into the outflows from R Aquarii}.
Despite these detections, no clear imaging of these extensions has been produced to date.
We therefore decided to conduct deep imaging from our remote observatories in southern Spain so as to reveal the physical nature of these features.
Captured using our remote telescopes in Spain.
A total of 58 hours 30 minutes (HaOIIIRGB)
More information at https://www.imagingdeepspace.com/r-aquarii.html
Files associated with this observation
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Jeremy Shears,
Chris Hooker,
Ian Jarrett,
Nick Hewitt,
Callum Potter,
Tim Haymes,
Gary Poyner,
Dr Paul Leyland,
Miguel Araújo,
Mr Owen Michael Brazell,
Manolo_Rodriguez,
Peter Carson
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