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(IAAC) NGC 6369 - 4.25" F/7.8



Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Object: NGC 6369 (PK 002+05.1; PN G002.4+05.8; ARO 51, He2-232)
Category: planetary nebula
Constellation: OPH
Object data: Vmag=11.4; Bmag=12.9; 28"x28"; type IV+II; central star of
Bmag=14.7 (Vmag=16.6); discovered by Herschel in 1784; ELCAT: [OIII,
496+501nm] = 17 x [Hbeta, 486nm].
RA/DE: 17h29.34m, -2345.6' (2000.0)
Date and UT of observation: 23 June 1990, evening
Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft)
Limiting magnitude (visual in UMi): 6.0
Transparency (1 to 5 - best to worst): 1
Seeing (1 to 5 - best to worst): S
Moon up (phase?): no
Instrument: Japanese Newtonian 4.25"/114mm  f/7.8
Magnification: 36-150x
Filters used: -

Description: at 36x, faint and pale nebulous star with a mag10 star near.
At 72x, more nebulous; at 100x, planetary form obvious; at 150x, larger,
shapeless but looks circular.


Yann Pothier
11 impasse Canart, 75012 PARIS, FRANCE
yann.pothier@fnac.net
http://www.astrosurf.org/cielextreme
http://www.astrosurf.com/cielextreme
http://astrosurf.org/skylink/publi/cielextreme,


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