Kappa Crucis Widefield from Kulnura

[seeker372011]

Managed only one 10 minute exposure before the clouds came in. This is through the ED80 on CG5, autoguided, 300D (unmodded) iso 1600, dark frame subtracted in photoshop.

Notice planetary nebula PLN 303 +1.1 to the left of the Jewel Box. Louie and Anthony helped us try to identify this obscure object but we couldn't find it in any of our star maps on the night.

Notice also the blue nebulosity on the bottom right hand side of the image. Dont know what this is... Does anyone?

Narayan

[[1ponders]]

No idea Narayan, but another fine shot to add to your collection. :cheers:

[atalas]

Narayan great to see that shot of yours posted,still couldnt find any info on that neb It's
starting to drive me nuts! that blue is probably reflection neb.

Louie :party: :thumbsup:

[Rodstar]

It is a marvel that you got any images that night Narayan. Well done to you and your son. I assume that is the Coal Sack to the left of the image??

[seeker372011]

Yes Rrod, that's correct, it is the Coal sack..

total set up time -including driving to Kulnura-probably 5 hours...

useful imaging time 10 minutes...glad we at least got that one image!

narayan

[[1ponders]]

Now that's dedication. :thumbsup:

[Mick]

Maybe the blue nebulosity is light from Mimosa (Beta Crucis)?

[Dennis]

Hmm, could not find any nebulosity using the following programs:
• Starry Night Pro 4.5.2
• The Sky Pro V6
• SkyTools
• Desktop Universe.

Great image though, of a most beautiful part of our fabulous Southern skies.

Cheers

Dennis

[h0ughy]

don't see much except lots of stars Narayan
:2thumbs:

[seeker372011]

I emailed Doug Sydner who maintains a great website for Planetary nebs asking about the object in the image above and this is what he replied:

Quote

Hi Narayan,

From your image and other information, I believe that planetary is
PK305+1.1
(other designations are PNG 305.1+01.4, He2-90 and ESO 132-1). It is in
Centaurus, east and south of the "Jewel Box' cluster. It is about 10
arc-seconds in size and has a photographic magnitude of 13.7. The
coordinates are 13h 09.6m, -61d 20m. It is listed in the
blackskies.com
database under He2-90 (Henize). I hope this helps!

Unquote

I had -as it turns out incorrectly -identified the object as PN 303+1.1

just to set the record straight and in case anyone else wants to hunt this object down!

Narayan

[atalas]

Great some info on that neb! Narayan maybe that blue in your image is amp glow from your camera.

Louie :thumbsup:

[tornado33]

The little red nebula caught my attention. It is not on any star charts I know of amazingly. Here is a DSS image of it
http://archive.stsci.edu/cgi-bin/dss_search?v=poss2ukstu&r=12+50+20&d=-61+34+59&e=J2000&h=15.0&w=15.0&f=gif&c=none&fov=NONE&v3=
Its next on my list to get.
The blue glow in the pic is real, I believe its faint reflection nebulosity (Its a nice deep image by the way)
Scott

[atalas]

Oh my ! thats interesting ,now lets see what you can do with It Scott!

Louie :confuse3:

[tornado33]

Hi all.
Done it, here it is http://www.users.on.net/~josiah/baader/unknownsmall.jpg
Its at
12 deg 50 m21s -61 deg 34.54
the shot is 1350 and 1800 sec shot, ISO 400 cropped full res from larger
image.
Id love to tell you its name but I cant as according to all the starmaps it doesnt exist.
Scott

[atalas]

Nice work again Scott,so you would not no anything about those stars in the middle of It then I would assume ?

Louie :confuse3:

[ballaratdragons]

Scott,

It must be known about if it is in the Archives of stsci.edu.

I was about to get very very excited that Narayan had made a new discovery.

But that Blue nebulosity maybe a newbie!

[tornado33]

The deep south is such an unknown realm even now it seems. :D I cant find any info on it at this stage.
Scott

[ballaratdragons]

Hmmm! A bit strange that there is no info when they are both in a heavily photographed, mapped and catalogued area.

[atalas]

Ken I guess there has been no measurements as such taking yet. Maybe at this time not a priority for Astronomers.

Louie :confuse3:

[ballaratdragons]

If there are uncharted objects in our Southern Skies it's time we started cataloguing them as they are found. Possibly even name them if they are not already catalogued anywhere else. An IceInSpace catalogue possibly: IIS-1, IIS-2 etc. and sub-named after the discoverer: Narayan-A, etc.

If no-one else is doing it, might as well start now. IIS -1 (Narayans Nebula-A) A faint blue nebulous area South of the Jewel Box.

[iceman]

We need Andrew (hector), he'll be able to ID it i'm sure.

[seeker372011]

well done Scott. Finding it must have quite been a challenge since you cant see it in the viewfinder of the Canon at all

As for Narayan's Nebula..let see if some one else can image it to make sure it is not just something from the twilight zone!

[tornado33]

Thanks.
The larger faint blue nebula will be hard for me as its so big, though I should see if I can do a 50mm lens shot of it.
Scott

[john_drummond]

Hi all,

I did a search on GUIDE 8.0 (software) and it suggests that the object is
GN 12.47.3 - an emission nebula. Information from the Nebula Databank:

GN12.47.3
Maximum diameter: 180 arcseconds
Emission nebula
Brightness level: 5 (1=brightest, ... 6=faintest)
Brightness level extremely approximate

Alternative designations for this object:

GN 12.47.3
RCW 71

I took some wide field shots of the area last night and compared it to Guide and to Scott's image. I created a webpage with the images, Scott's image, and a GUIDE screen shot on it. It can be seen at:

http://www.possumobservatory.co.nz/scott%27s_nebula.htm

or

http://tinyurl.com/8scpp


Hopefully the page is fairly self explanatory. Careful comparison of the
stars between the various images and GUIDE tells the story.

This emission neb lies about 40' from the Jewell Box in a PA of about 200.

BTW, does anyone know what GN stands for - I presume it G... Nebulae(?)

Cheers

John Drummond

[iceman]

Great research John, nice job!

[tornado33]

Excellent work John, thanks for the page, its great!
Gn stands for Galactc Nebula , and RCW objects from what I can tell are mostly Supernova remnants. Its quite odd that this object isnt in most popular atlases and catalogues. Now the task for us all is to see if it can be seen visually :).
Scott

[tornado33]

This chap must know of it too :)
http://users.westconnect.com.au/~sjastro/rcw71nc.html
http://users.westconnect.com.au/~sjastro/
He has some nice images there.
Scott

[ballaratdragons]

That's the small red nebula answered, but what about 'Narayans Nebula-A' the Blue haze. Has it been captured again to prove it isn't a camera effect.

[john_drummond]

No problem re the webpage - I enjoyed the mystery and challenge...

Regarding the 'blue nebula' ('Narayans Nebula-A') captured by Narayan, I wonder if it's not some sort of lens ghosting/reflection from the very bright Beta Crucis which lies about 21' beyond the edge of the frame in the same direction. I checked a combined image I took of this area last night with a Sigma 70-200 lens and 1.4x adapter (thus 448mm FL @ f4) and I can't see this nebula (14 x 2 minute at 800asa) - not dismissing the possibilitythough. :confuse3: See the image at...

http://www.possumobservatory.co.nz/scott%27s_neb-448mm_fl-@f4-14x2min@800asa-050726-line.jpg

or

http://tinyurl.com/9q6k5

Cheers

John Drummond
Gisborne, New Zealand
E 178° 03' S 38° 40'
email: john_drummond@xtra.co.nz
website: http://www.possumobservatory.co.nz

[ving]

looked at heaps of info and pics of the area surrounding beta crux and not a sign of any nebulosity...

time to name it!
:confuse3:
nice pic btw

[john_drummond]

Oops, forgot to add that Beta Crucis is at the top of the image and the Jewell Box is at 8 O'Clock to it. The object with 'arrows' is 'Scott's Nebula'. The blue halo around Beta Crucis on my image is no doubt lens artifacts...

Cheers

John

[atalas]

Guys thanks for all the research and images you post !


Louie :thumbsup: