(IAAC) Obj: M8, Lagoon Nebula - Inst: Refractor 102mm f6,6

[anonymous at s15272250.onlinehome-server.com]

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Observation Poster: José Ramón <joser416 at latinmail.com>

Observer: José Ramón
Your skills: Intermediate (some years)
Date/time of observation: 
Location of site: Colmenarejo, Madrid (Lat 40°34, Elev 899)
Site classification: Suburban
Sky darkness: 6 <Bortle Scale (9 worst)>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: Refractor 102mm f6,6
Magnification: x22
Filter(s): OIII
Object(s): M8, Lagoon Nebula
Category: Emission nebula.
Class: 
Constellation: Sagittarius
Data: mag 6,0  size 90' x 40'
Position: RA 18h:04m  DEC -24°:23'
Description:
Added to show the marvels a nebular filter can do, even with an object
relatively low in the sky and suffering the effects of street lights. With no
filter, the unique nebula visible is the densest one -the Hourglass-, SW of 9
Sagittarii.
Adding the OIII, the Lagoon suffers a spectacular change, being easily visible
nebulosity around the Hourglass and both 9 Sagittarii and its companion at north
as well as (fainter) around the open cluster NGC 6530, separated by a truly
"dark river". North of the main nebula, one can see one much fainter that
extends E-W. To resume, it looks like what one can see in pictures, except that
-of course- greenish and not reddish and with less fine details. 
Can't wait to see it under a REAL dark sky.   
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