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(IAAC) Obj: NGC 2264 - Inst: SC 8" Celestron. HEQ5



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Observation Poster: Jorge Solera Marín <jsoleram@wanadoo.esUT>
Observer: Jorge Solera Marín
Your skills: Intermediate (some years)
Date/time of observation: 23-mar-2003  21:30 UT
Location of site: Sta. Ursula. Tenerife. Spain (Lat 28º 41´, Elev 16 h 46min)
Site classification: Exurban
Sky darkness: 5 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: SC 8" Celestron. HEQ5
Magnification: 32x, 51x, 102 x
Filter(s): None
Object(s): NGC 2264
Category: Open cluster.
Class: 
Constellation: MON
Data: mag 4.0  size 30´x12
Position: RA 06:41  DEC 09:53
Description:
I can see the Christmas tree cluster like a triangle. I count 36 stars from 8 to 11 magnitude. At his base (north), lies 15-Monoceros. With 102x this blue star has a 8.0 companion at 3´´.
Without any filter, I can see some nebulosity surrounding 15-Mon. At the top of the triangle (south) I see STF 950 (102X) an other one binary system white and blue, mag 7.2-9.5 at 13´´. Some nebulosity is around this zone , but I can´t see the famous dark Cone nebula.
About 3´ to southeast of 15-Mon, I can split STF 952, mag. 9.7-10.5 at 14´´, and 9´to southwest of 15.Monb an other blue double star, STF 951, mag. 8.4-10.9 at 22´´.
Finally 30´away the apex of the cluster, bright the fantastic STF 953, orange and white, mag. 6.57-7.05 at 7´´.
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