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Weltevreden SA
28-01-2018, 05:14 AM
https://www.flickr.com/photos/145284842@N07/26058690758/in/dateposted/Hi from across the puddle, mates. I need your help. I have a presentation at the Astro.Soc.So.Africa symposium on Pro-Am collaboration, coming up March 9-12 in Cape Town. The presentation is about the elusive "Magellan's Ghost" light band that goes from the S quadrant of the LMC, through Mensa, crosses Chameleon about 4 degrees to the S, and fades away around Apus. This phenomenon has been discussed periodically on IIS and CN since 2009 and so far no one has satisfactorily explained it. Some of you might remember Timo Karhula's sighting reports on it. I researched and wrote a 70-page paper analysing the possible causes from Galactic cirrus to Magellanic gas and star streaming, and essentially came up with no plausible causes.

There are too few images to go on. I'm asking any of you who work with wide-field imaging to see if you can capture the luminosity patches in the attached image by Hisayochi Kato, but using other filters, exposures, & processing. I could really use a larger palette of images to show at the symposium. I'd be hugely grateful for anything you can provide, and will of course credit the images with the equipment & processing info you provide with them.

Here is a link to my annotated copy of an original by Hisayochi Kato (https://www.flickr.com/photos/145284842@N07/26058690758/in/dateposted/). The emission I would like to see more images is marked with the numbers 1, 2a, 2b, 3.


Thanks much . . .
=Dana in S Africa

gregbradley
28-01-2018, 08:11 AM
http://www.pbase.com/gregbradley/image/137923433/large

That's one. Your posted links don't work. It says you need to login to view.

Greg.

gregbradley
28-01-2018, 08:20 AM
Here is a link to a posted photo of the SMC tidal tail by Colin:

http://www.iceinspace.com.au/forum/attachment_browse.php?a=215264

Greg

Atmos
28-01-2018, 10:05 AM
Not sure if there is any cross over in the LMC area with the following image.

https://www.astrobin.com/269173/
Two hours at F/1.8 although not the sharpest lens.

What I can do next new moon is head up to my dark site and do some luminance on the area with a Sigma Art 85mm. I could do luminance with a smaller chip (micro 4/3rds) or use a Nikon D810 for a wider field.

Weltevreden SA
30-01-2018, 08:03 AM
Thank you to all who replied. Greg, I disliked Flickr before, now I loathe it. I specifically flagged those images as Open Access. I got the Kato image from Flickr in the first place by simply clicking on their link. G-r-r-r . . .

Atmos, I'd like to take you up on your officer to do s specific shoot of the region I need. It is not the LMC itself, but the region beneath the LMC starting in Mensa and angling toward the MW disc at about 4° under the Chameleon's tummy. I will send you the images that Flickr 403'd if you'll email me at assa.nightfall@gmail.com.

I've been quiet on this forum (also CN) because I'm now the editor of the ASSA Nightfall Deep Sky web publication (https://assa.saao.ac.za/wp-content/uploads/sites/23/2017/11/NF_v2n1.1_201710.pdf). Suddenly I'm waist-deep in writing for it instead of you. If you check it out, the cover image is by your IIS colleague Murray Parkinson.

Thank again to everyone . . .

=Dana in SA

alocky
30-01-2018, 09:35 AM
Hi Dana, I’ve attached a link to a wide field image that shows the ifn between the LMC and SMC. I can also head out somewhere dark and get some wide field images of the region you mention.
Regards
Andrew.
https://www.astrobin.com/309256/?nc=user

astroron
30-01-2018, 11:06 AM
Thanks Dana for the link to the "Nightfall Deep Sky web publication"
Fantastic.
It will take me some time to read it all.
Some really interesting articles. :thumbsup:
I corresponded with Magda Striker a bit when I was in the Webb society.
Cheers:thumbsup: