(IAAC) NGC 6886 - 8" F/10

Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Object: NGC 6886 (PK 060-07.2; PN G060.1-07.7; ARO 109, He2-458)
Category: planetary nebula
Constellation: SGE
Object data: Vmag=11.4; Bmag=12.2; dim=9"x6" (9.3"x6.3" in IDB); type
II+III; central star of Vmag=16.6; discovered by Copeland in 1884; ELCAT:
[OIII, 496+501nm] = 24 x [Hbeta, 486nm].
RA/DE: 20h12.72m, +1959.1' (2000.0)
Date and UT of observation: 18 August 1993, 01h00 UT
Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft)
Limiting magnitude (visual with averted vision in UMi): 6.3
Transparency (1 to 5 - best to worst): 1
Seeing (1 to 5 - best to worst): 3
Moon up (phase?): no
Instrument: Meade SCT 8"/203mm  f/10
Magnification: 145x
Filters used: prism, OIII
Description: at 80x, located with prism, quite faint and melted in the
continuous spectrum of a nearby star of same brightness, about mag11;
confirmed at 145x with a very good OIII response [see the outstanding
OIII/Hbeta ratio]; somewhat fuzzy at 145x and at 310x; brighter towards the
center; mag11 star at 1'S and mag10 star at 1.4'E.
I can provide a scanned drawing of NGC 6886 to anyone who can read the
binhex encoding of Eudora (for Mac); just mail me to try
(yann.pothier@fnac.net), it works quite often with other configurations...
Yann Pothier
11 impasse Canart, 75012 PARIS, FRANCE
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