British Astronomical Association

Supporting amateur astronomers since 1890

Thommes’ nebula

Common name Designation Constellation  Star RA Dec
Thommes’ nebula Monoceros V900 Mon 6hr 57m 22s -08° 23’ 18”

The faint variable nebula in Monoceros, discovered by Jim Thommes in 2009. Nick Hewitt image 2019 November 29th using iTelescope32 (431mm f6.8 Planewave CDK). 300s x 2. Bin2.
Thommes’ nebula is a relatively new addition to the list, being noticed by Jim Thommes in 2009 when imaging LBN1022. It is flowing from an eruptive variable V900 Monocerotis and was barely visible on POSS images. It has yet to be systematically imaged by British amateurs although the occasional image is in now in our archive. It would be good to have regular observations with consistent instrumentation and technique.

Grant Privett’s 2011 image of V900 Mon and Jim Thommes’s newly discovered nebula.
Grant Privett’s 2011 image of V900 Mon and Jim Thommes’s newly discovered nebula.

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/8a.-Thommes-and-V900Mon-rgb-full-Privett.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

https://britastro.org/wp-content/uploads/2021/01/8a.-Thommes-and-V900Mon-rgb-full-Privett.jpg

https://britastro.org/wp-content/uploads/2021/01/7.-Thommes-nebula-20191129-iT32-Luminance-BIN2-300s-x-2-cropped-PP.jpg

The British Astronomical Association supports amateur astronomers around the UK and the rest of the world. Find out more about the BAA or join us.