Paul, it's irrelevant we are viewing the persons image not c & c'ing his grammar, although the word nebular can be used should I correct both of you and say he should use the term nebulae as there are more than one nebula
IMHO some people of late have been to pedantic about grammar and offer very little in the way of constructive criticism. Remember also that these threads are often written on the spur of the moment, withouta thought of spelling or grammar.
By the way a very nice image, the dust lanes and nebulae are showing up well.
For all.
There are no Messier objects in Corona Australis, however the constellation does have a globular cluster suitable for binoculars, as well as an interesting region of nebulosity that goes under a multiple name.
NGC 6541 is a globular cluster, quite large and bright, about 15,000 light years away. It's nearly midway between theta CrA and theta Sco, a bit closer to the latter (more precisely thirty arc minutes east of theta Sco).
NGC 6729 is part of a nebulous region that contains both variable stars R CrA and TY CrA.
The region is a mixture of bright and dark nebulae; the brightest region is NGC 6726/6727, which form a figure eight. Just to the SE is NGC 6729, which is much fainter, but of more interest as it contains R CrA, an irregular variable that goes from 9.7 to about 12. As the star brightens, so does the surrounding nebula. The other variable, TY CrA, is found in NGC 6726, and varies from about 8.8 to 12.6.
The easiest way of finding the nebulosity is to drop seven and a half degrees south of zeta Sagittarii.
Last edited by TrevorW; 03-10-2010 at 12:38 PM.
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