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RA: 21h 17m 08.28s
Dec: +34° 12′ 27.5″
Ch: MSA:1146, U2:121, SA:9
Ref: SIMBAD, [1996ApJS..107..255T]
Type: planetary nebula
Mag: B=?, V=?
Size: 13′ x 9′
The position given here for this nebula is the position of the central star, which is identified as being RX J2117.1+3412 by Tweedy & Kwitter (1996).
In turn, the position of the central star is taken from SIMBAD, which also gives the star's magnitude as B=13.3, V=13.16.
Note that SIMBAD cross-references this star with PN G080.3-10.4=PK 080-10 1.
A new PG 1159 star discovered in the ROSAT XRT all sky survey : NLTE analysis of X-ray and optical spectra. Astron. Astrophys., 268, 561-569. [1993A&A...268..561M]
An Atlas of ancient planetary nebulae and their interaction with the interstellar medium. Astroph.J.Supp., 107, 255-262. [1996ApJS..107..255T]
Acronym "MWP1" used here (e.g. p 256).
Is a strong emitter of OIII (256), exhibits bipolar morphology (258), angular size 13x9 arcmin, linear size 5.3x3.7 pc (Table 3).
Illustrated in Fig. 5 (Plate 52).
An image of MWP 1, by Don Goldman, was featured on APOD (2010 October 21).
The Messier objects
The Bennett objects
The Caldwell list
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