(IAAC) Obj: Helix Nebula (NGC 7293) - Inst: Nexstar 102 SLT (102mm f6, 6 Refractor)

[anonymous at u15354731.onlinehome-server.com]

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Observation Poster: Jose Ramon <joser416 at latinmail.com>

Observer: Jose Ramon
Your skills: Intermediate (some years)
Date/time of observation: October 10, 2009 01:00 UT
Location of site: Colmenarejo (Madrid, Spain) (Lat 40°33&#8242;35&#8243;N, Elev 899 meters)
Site classification: Exurban
Sky darkness: 5 <Limiting magnitude>
Seeing: 3 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: Nexstar 102 SLT (102mm f6,6 Refractor)
Magnification: *22
Filter(s): UHC
Object(s): Helix Nebula (NGC 7293)
Category: Planetary nebula.
Class: 
Constellation: Aqr
Data: mag 7,3  size 25'
Position: RA 22h:40m  DEC -20° :50&#8242;
Description:
Totally invisible with no filter. Using the UHC, a cloud roughly elongated N-S
with little gradient and well-defined edges is easily visible. Certainly, the
Helix is not the Dumbbell and much less those tiny planetary nebulae that need
high magnifications and/or a nebular filter to be caught.

As a side note, also (barely) seen from an urban site (Madrid) with the same
equipment and an OIII filter.
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