+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Subject + Availability Options Selected Navigations: [Remove] Item/Media Type > Conference Paper [x] Publication Year > 1971-1980 > 1976 [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 1702 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 4 5 6 7 8 9 10 Next >> Physical properties of interplanetary grains Author(s): Brownlee, D. E.; Horz, F.; Tomandl, D. A.; Hodge, P. W. Abstract: Morphological analyses of micrometeorite craters found on lunar rocks and laboratory simulation experiments are used to formulate a meteoritic interplanetary dust particle for optical scattering calculations that is roughly ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2009-01-13 Accession Number: 76N21092; Document ID: 19760014004 Narrow band photometry of comet Kohoutek Author(s): Brown, L. W. Abstract: Photometric observations of the coma of comet Kohoutek were made at the Cassegrain focus of a 36-inch telescope. The observations consisted of one wide (visual, 5454 A) and six narrow (CN, 3879 A; C3, 4057 A; C2, 4732 A, ... NASA Center: Goddard Space Flight Center Publication Year: 1976 Added to NTRS: 2008-12-30 Accession Number: 76N21055; Document ID: 19760013967 Comet data collections Author(s): Giclas, H. L. Abstract: Various collections of comet observational material are discussed in terms of developing a data base. Emphasis is placed on observational material buried in the archives of the older observatories. NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2008-12-30 Accession Number: 76N21057; Document ID: 19760013969 Photoelectric polarimetry of the tail of comet Ikey-Seki (1975 VIII) Author(s): Weinberg, J. L.; Beeson, D. E. Abstract: Post-perihelion measurements of Comet 1965 VIII made on four nights in October-November 1965 using a Fabry photometer atop 3,052 m Mt. Haleakala, Hawaii are described. Detailed results of observations at 5300A on October 29, ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2008-12-30 Accession Number: 76N21056; Document ID: 19760013968 Photometry of the cometary atmosphere: A review Author(s): Vanysek, V. Abstract: Photometry and polarimetry of the cometary heads one of the most important sources of information about the physical processes in comets is reviewed. Methods of inspection discussed include: narrow band photometry, wide band ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2008-12-30 Accession Number: 76N21053; Document ID: 19760013965 Photoelectric photometry of comet Kohoutek (1973f) Author(s): Kohoutek, L. Abstract: Comet Kohoutek was observed with the 50 cm (f/15) reflecting telescope of the European Southern Observatory, La Silla, Chile, on fourteen nights between January 16 and 30, when the heliocentric and geocentric distances of ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2008-12-30 Accession Number: 76N21054; Document ID: 19760013966 Spectroscopic observations of comet Kohoutek (1973f), 2 Author(s): Benvenuti, P. Abstract: Spectroscopic observations of comet Kohoutek at the Asiago Astrophysical Observatory are described. Spectra cover six nights before perihelion and five nights after perihelion. The spectra of the coma and tail of comet ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2008-11-10 Accession Number: 76N21060; Document ID: 19760013972 Review of cometary spectra Author(s): Herbig, G. H. Abstract: The spectra of comet Kohoutek, comet Bradfield, and comet Mrkos are reviewed and compared in relation to stellar spectroscopy and evolution. The possibility of observing the absorption spectrum of a comet and direct ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2008-11-10 Accession Number: 76N21058; Document ID: 19760013970 Detection of molecular microwave transitions in the 3 mm wavelength range in comet Kohoutek (1973f) Author(s): Buhl, D.; Huebner, W. F.; Snyder, L. E. Abstract: Observations of comet Kohoutek made with a 3-mm line receiver mounted on the 11-m NRAO radio dish at Kitt Peak are presented. The detection of line transitions of hydrogen cyanide and methyl cyanide is reported and discussed ... NASA Center: Goddard Space Flight Center Publication Year: 1976 Added to NTRS: 2008-11-10 Accession Number: 76N21064; Document ID: 19760013976 Laser induced photoluminescence spectroscopy of cometary radicals Author(s): Jackson, W. M.; Cody, R. J.; Sabety-Dzvonik, M. Abstract: Flash photolysis together with laser excitation of the product fragments was used in laboratory studies of cometary radicals. The LIPS method has been applied to the CN radical to determine: (1) Radiative lifetimes of ... NASA Center: Goddard Space Flight Center Publication Year: 1976 Added to NTRS: 2008-11-10 Accession Number: 76N21080; Document ID: 19760013992 1 2 3 4 5 6 7 8 9 10 Next >> + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007