The Planetary Nebula in Cygnus (R.A. 21h 2m, Decl. $47^{\circ} \,{22}^{\prime}$
نویسندگان
چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1881
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/41.8.409