[AZ-Observing] Pickering's Wedge
- From: BillFerris@xxxxxxx
- To: az-observing@xxxxxxxxxxxxx
- Date: Mon, 29 Sep 2003 10:48:42 EDT
I got some photon time with my 10-inch Newtonian, last Friday. Most of the
objects I observed were old friends but there was one guy I hadn't sketched
before. That was Pickering's Wedge, the triangular nebulosity between the two
major components of the Veil Nebula.
NGC 6960 is the long lick of flame kissing 52 Cygni, a 4.2 magnitude star in
eastern Cygnus. About 2.5 degrees to the east, the lacy arcing form of NGC
6992 is found. These are the major visible components of the Veil Nebula, an
ancient supernova remnant. But there are more remnant nebulous patches to be
seen
in this area.
Among these is Pickering's Wedge, also known as Pickering's Triangle or
Fleming's Triangular Wisp. (Thanks to Tom Polakis for helping me with the
identification.) According to Brian Skiff, this object was discovered by
Williamina
Fleming, one of E. C. Pickering's assistants at Harvard College, while she was
studying a photographic plate of the region.
Since it wasn't observed--or at least not cataloged--by anyone prior to
Dreyer's publication of the NGC/IC, this object has no designation in those
catalogs. Still, it's a fine subject for moderate aperture under dark
transparent sky.
Here's the URL: http://members.aol.com/billferris/pwedge.html
Regards,
Bill in Flagstaff
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