[Prev][Next][Index][Thread][Search][Objects]
(IAAC) Obj: NGC5457 (M101) - Inst: 55CM / f:4.1 / StarMaster
----
Observation Poster: James (Jim) Anderson <madmoon@bellsouth.net>
Observer: James (Jim) Anderson
Your skills: Intermediate (some years)
Date/time of observation: 06022003/0605ut
Location of site: Bigwoods, NC (Lat 35;46N, Elev 250')
Site classification: Exurban
Sky darkness: 6/10 <1-10 Scale (10 best)>
Seeing: 5/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 55CM / f:4.1 / StarMaster
Magnification: 120X, 220X
Filter(s): None
Object(s): NGC5457 (M101)
Category: External galaxy.
Class: SAB
Constellation: UMa
Data: mag 8.3p size 28.9' x 26.9'
Position: RA 14:03 DEC +54:20
Description:
120X- Even through the polluted skies NGC5457, is a manificent object. It
appears as a E-W bright oval with spiral arms extending outward in involute
patterns. At the very North an arm begins, spiraling outward, wrapping clockwise
about 100* where it splits into 2 arms, the inner one wrapping around, as it
seems at least 180*. The outer branch spirals wider and contains several
promenent star clouds. The first star cloud is NGC5461 that looks like a tiny
elongated object that stands out strongly, very easy with direct vision.
Continuing along the arm about 3.5' is another star cloud NGC5462 which looks
like 2 tiny bright blobs, not quite joined. The arm continues on ending with a
faint star (14V). Another arm starts at the South of the core spriraling
clockwise outward about 230* to an star cloud NGC5447 which looks like a small
dim clumpy wisp about 60" x 10". There are other clouds just detectable all
around the FOV. This object is well worth in depth observations under good sky
conditions. Ah! For a better night.
--
Optional related URLs:
** This observing log automatically submitted via the Web from:
http://www.visualdeepsky.org/enter-log.html
To stop receiving all 'netastrocatalog' lists, use the Web forms at:
http://www.visualdeepsky.org/subscribe.html