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Integrated Flux Nebulae (IFN) - any catalogues?

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#1 C.Hay

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Posted 29 February 2020 - 07:36 AM

Dear all,

 

I'm wondering whether there are any catalogues of Integrated Flux Nebulae (IFN) out there beside the 9-entry Mandel-Wilson (MW) list: http://www.skymonste...nCatalogue.html

 

I'm also curious to learn whether Steve Mandel and Michael Wilson actually set up the list like that, or whether someone else did that.

 

CS, Christopher


Edited by C.Hay, 29 February 2020 - 07:36 AM.

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#2 Paul Garais

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Posted 29 February 2020 - 07:40 AM

Would also be interesting to know, at which skies your are attempting to image IFN. A rough Bortle estimate anyone? Like up to Bortle 5 and above not?
Giving that you do not integrate 20+ hours ;)


—Paul

#3 Dave Mitsky

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Posted 29 February 2020 - 12:00 PM

Mel Bartels' list of IFN can be found at https://www.bbastrod...els Ghosts.html


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#4 PEterW

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Posted 29 February 2020 - 01:01 PM

Mel has also got a partial sky map of the ones he’s found so far to help people find them. Definitely an area for more people to add to, especially southerly latitudes. Maybe these are the “final frontier” for visual amateur astronomy?

Peter
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#5 Dave Mitsky

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Posted 29 February 2020 - 01:43 PM

I spent some time observing with Mel Bartels and Tom, the owner of a homemade HET (High Etendue Telescope) 14" f/2.6 meniscus-mirror Dob, one night during the 2019 Black Forest Star Party at Cherry Springs. I was able to see integrated flux nebulosity for the first time in the areas surrounding M15 and M31. 

Attached Thumbnails

  • 14-inch HET BFSP 1.jpg
  • 14-inch HET BFSP 2.jpg

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#6 Dave Mitsky

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Posted 29 February 2020 - 01:48 PM

Here are some of the photos that I took during Mel Bartels talk.  The truss-tube Dob is a 25" f/2.6!

Attached Thumbnails

  • Mel Bartels Talk BFSP.jpg
  • Mel Bartels Talk IFN.jpg
  • Mel Bartels 6-inch f2.8 Dob.jpg
  • Mel Bartels 25-inch f2.6 Dob.jpg
  • Mel Bartels M51 IFN.jpg

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#7 C.Hay

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Posted 01 March 2020 - 03:07 PM

Many thanks for all the replies. A correspondent has drawn my attention to the following two lists:

 

MBM - Magnani, Blitz, Mundy:

http://cds.u-strasbg.../Dic-Simbad?MBM

 

PGCC - Planck Catalogue of Galactic Cold Clumps

http://cds.u-strasbg...imbad?/12600965

 

However, those two were generated photographically by professional astronomers with specific research interests. Many of the objects in them will be of little to zero interest to us visual observers.

 

The Mandel-Wilson list, which has 9 entries as far as I can make out, is also a photographic product, but one by an amateur, which makes it much more attractive to me.

 

So the only assembly of IFN compiled with visual observation in mind is, as far as I can make out, the fine compilation by Mel Bartels, with objects carrying descriptive names.

 

CS, Christopher


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