(IAAC) Obj: NGC6604 - Inst: 30CM, f:10 SCT LX200

[anonymous at sedna.atmob.org]

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Observation Poster: James Anderson <madmoon at bellsouth.net>

Observer: James Anderson
Your skills: Intermediate (some years)
Date/time of observation: 10022002/0141ut
Location of site: Grant, VA (Lat 36:39.8, Elev 2836')
Site classification: Rural
Sky darkness: 6/10 <1-10 Scale (10 best)>
Seeing: 7/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 30CM, f:10 SCT LX200
Magnification: 138X, 254X
Filter(s): H-Beta
Object(s): NGC6604
Category: Open cluster.
Class: I 3m n
Constellation: Ser
Data: mag 6.5v  size 6.0'
Position: RA 18:18.1  DEC -12:14
Description:
138X - NGC6604 appears too small to se any detail.

254X - NGC6604 is a small open cluster, loosely scatterd. In the south is a
hook of 4 brightst stars and atleast 5 more relatively bright stars and several
more fainter ones for a total of 24 stars ranging from 7.5 to 13.5 magnitude.
The brightest being at the south end of the hook shape aserism and 2 relatively
bright stars in the norther boundry of the cluster. The brightest, 
GSC5685.2720/9.3mag, and the westernone CGS5685.2250/11.4 mag which has 2
fainter stars closely associated. (11.8 & 12.8 mag) The center of the cluster is
very sparse of stars and there is no trace of bright nebula, Sharpless SH2-54
which is the host to NGC6604. The H-Beta filter does not help with SH2-54.
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