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RA: 20h 12m 42.81s
Dec: +19° 59′ 22.7″
Ch: MSA:1218, U2:163, SA:9
Type: planetary nebula
Mag: B=11.8, V=?
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag planetary nebula.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11M; 9" x 6" extent; small, greenish oval is tough; use N-filter and high-x; 25' to NW is LP VAR FG SGE."
Observer: Mark Birkmann Your skills: Intermediate (some years) Date/time of observation: 7/9/99, 6:00 UT Location of site: New Haven, Missouri (Lat N 38, Elev ~700') Site classification: Rural Sky darkness: 5 1-10 Scale (10 best) Seeing: 5 1-10 Seeing Scale (10 best) Moon presence: None - moon not in sky Instrument: 30" f/4, dob Magnification: 150x 540x Filter(s): Orion Ultrablock Object(s): NGC 6886 Category: Planetary nebula. Class: 2+3 Constellation: sagitta Data: mag 12.2p size 5.5" Position: RA 20h:12m 42.8s DEC +19:59' 22"
Description: Very small, no detail, color, or central star seen. Formed a triangle with two nearby stars, the nearest of which was an obvious yellow.
Steve Coe, observing with a 13" f/5.6, notes: "Pretty bright, very, very small, little elongated. Just a central star with a tiny, elongated haze around it at 220X. The grey-green color gave it away. Camp 613 13" 330X--pretty faint, very small, not brighter in the middle, round, just barely larger than seeing disk, on east side of isosolese triangle of stars of equal magnitude."
AJ Crayon, using an 8" f/6 Newtonian, notes: "is a planetary nebula. It is about the size of the seeing disk 12m and round, at 200X. This was a very difficult object to find."
16-inch f/10 SCT (95x, 127x)
I could only see it in 290x as a frosted greenish spot which is out of focus compare to the two similar brightness stars which form a tri angle to the planetary. The spot could be very very slightly elongated in a NW-SE direction but it could be illusion as well, difficult. The SW star of this trio is deep yellow in color.
Instrument:12-inch Dobsonian Reflector Telescope.
Sky Conditions:The fainter parts of the Milky Way are barely visible on the horizon.
Transparency of the Sky:Haziness only visible on the horizon.
Seeing:Atmosphere stable with little interference.
Object Type:Planetary Nebula.
First Impression:This object looks like a planetary nebula.
Chart Number:No.13(Extract taken out of "Atlas of the Night Sky").
Size:9mm Eyepiece:Field Of View:15'/13= 1.5'.
7mm Eyepiece:Field Of View:15'/12.5= 1.2'.
1.5'+ 1.2'= 2.7'.
Size in Arc Minutes:1.3'.
Planetary Nebula is 1.3'* 0.6'.
Brightness Profile:The nucleus is slightly brighter compared to the far outskirts of this planetary nebula.
Challenge Rating:Very Difficult.
This planetary nebula's shape is oval and well defined as a small out of focus ball of light.It almost looks like a bipolar planetary nebula.This nebula is seen as a greenish blur of light at both 167* and 214*.
The Messier objects
The Bennett objects
The Caldwell list
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