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Old 29-05-2007, 12:02 PM
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glenc (Glen)
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Faint PN

Has anyone seen the faint (mag 11.7, size 215") PN Lo 5?
It was found in 1977 by Longmore at RA 11h 13m 51s, dec -48d 5.5m.
The image below is from the DSS 2 red survey.
http://archive.eso.org/dss/dss
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Last edited by glenc; 29-05-2007 at 01:23 PM.
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Old 29-05-2007, 01:03 PM
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h0ughy (David)
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why not ask Mr Scott Alder - he love these faint fuzzies. try a pm
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Old 29-05-2007, 01:27 PM
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Jenni Kay FRAS The following observations were made with a 12.5” f/5 Newtonian, form my semi-rural home site at Lobethal, SA. The skies here typically have a limiting naked-eye magnitude of 6.1, with the seeing rated at ANT II-III.

Longmore 5 : 11 13.9 –47 57 (Centaurus)
120X: Obvious enough, as a faint, large, round, hazy glow. Much improved with the UHC filter, showing a bright, doughnut shape, 3.5’ in diameter. 240X: Relatively bright annular, with a faint star at the centre, which may or may not be the true central star. Seems to be a little brighter along the western edge. 360X: There can be seen some six stars around the rim. Some catalogues place this planetary some 8.5’ too far south.

http://www.mso.anu.edu.au/cas/southe...sc_200403.html
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Old 29-05-2007, 04:02 PM
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Consider it photographed the as soon as weather and moon allows.
Scott
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Old 29-05-2007, 04:03 PM
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I will have a try for this object when we get a dark sky again.ARGO NAVIS data base give the coordinates as RA=11:13'50" DEC=48:05'29" still whithin the field of view of a widefield eyepiece from the coordinates given in your post
There are a few faint large Longmore Planetary Nebulae that can be seen whith medium to large sized amateur telescopes.
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Old 29-05-2007, 04:06 PM
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Here it is in Star Atlas pro, showing the FOV with by 10 inch, and 6 inch scopes.
Scott
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Old 29-05-2007, 05:20 PM
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The ESO Online Digitized Sky Survey
gives Lo5 = PNG 286.5+11.6 the coords
RA = 11:13:54.1 DEC = -47:57:00.6
It is 20' from the mag 6.5 star HD98022 in pa 265d.


Last edited by glenc; 29-05-2007 at 05:35 PM.
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