1548C27 - an interesting new cometary nebula

Details 1548C27 - an interesting new cometary nebula 1548C27 - an interesting new cometary nebula

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86..751c&link_type=abstract

Astronomical Journal, vol. 86, May 1981, p. 751-754. NASA-NSF-supported research.

Astronomy and Astrophysics

Astronomy

18

Astronomical Photography, Comets, Infrared Astronomy, Nebulae, All Sky Photography, Astronomical Catalogs, H Alpha Line, H Ii Regions, Sky Surveys (Astronomy)

Scientific paper

The object 1548C27, a faint cometary nebula of classical form, discovered by an examination of early Near Infrared Photographic Sky Survey (NIPSS) data (1979) is presented. Direct imaging and polarimetric, photometric, and spectroscopic observations are reported. Early survey test photographs show that the object lies at R.A. 19h40m48s, Decl. +23 deg 17 arcmin 09 arc sec (1950) in the Vulpecula constellation in the immediate vicinity of the complex H II region and galactic cluster NGC 6820/6823. From the photographs, the nebula was estimated to be 15 m visual and of color class one. The object was observed spectroscopically in the region 5700-6800 A using an Image Dissector Scanner with a 1.8 m reflector, and the spectral scan, obtained on November 4, 1978, is presented. New information on cometary nebulae may further illuminate the evolutionary importance of the objects.

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