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Author : Thornton Page
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (5 download)
Download or read book Revised S201 Catalog of Far-ultraviolet Objects written by Thornton Page and published by . This book was released on 1982 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thornton Page
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.3/5 (91 download)
Download or read book Revised S201 Catalog of Far-ultraviolet Objects written by Thornton Page and published by . This book was released on 1982 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thornton-Leigh Page
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (946 download)
Download or read book Photom\s201 written by Thornton-Leigh Page and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thornton Page
Publisher :
ISBN 13 :
Total Pages : 229 pages
Book Rating : 4.:/5 (227 download)
Download or read book S201 Catalog of Far-Ultraviolet Objects. Revised written by Thornton Page and published by . This book was released on 1982 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: A catalog of star images was compiled from images obtained by the NRL Far-Ultraviolet Camera/Spectrograph (Experiment S201), operated from 21 to 23 April 1972 on the lunar surface during the Apollo-16 mission. These images were scanned on a microdensitometer, and the output was recorded on magnetic tapes. A set of seven computer programs was written to process these recorded outputs in order to compile the catalog. The catalog is divided into 11 parts, covering ten fields in the sky (the Sagittarius field being covered by two parts), and each part is headed by a constellation name and the field center coordinates. The errors in position of the detected images are less than about 3 arc-min. Correlations are given with star numbers in the Smithsonian Astrophysical Observatory catalog, and star images detected on two or more S201 frames which do not corresponds to SAO stars are listed. The Revised Catalog differs from the first edition (NRL Report 8173, 20 January 1978) in that the brightnesses of all detected objects have been placed on an absolute scale of UV magnitudes based on instrument preflight calibrations. These magnitudes are compared with expectations based on theoretical model atmospheres and with calibrated OAO-2 observations of stars in common. The text includes discussions of the data analysis procedures and discussions of some results for nonstellar objects of special interest. The Revised S201 Catalog is also available on a single reel of seven-track magnetic tape. (Author).
Author : Thornton Page
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (31 download)
Download or read book S201 Catalog of Far-ultraviolet Objects written by Thornton Page and published by . This book was released on 1978 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: A catalog of star images was compiled from images obtained by an NRL Far-Ultraviolet Camera/Spectrograph (Experiment S201) operated from 21 to 33 April 1972 on the lunar surface during the Apollo-16 mission. These images were scanned on a microdensitometer, and the output recorded on magnetic tapes. A set of seven computer programs were written to process these recorded outputs in order to compile the catalog. The catalog is divided into 11 parts, covering ten fields in the sky (the Sagittarius field being covered by two parts), and each part is headed by a constellation name and the field center coordinates. The errors in position of the detected images are less than about 3 arc-min. Correlations are given with star numbers in the Smithsonian Astrophysical Observatory catalog. Values are given of the peak density and the density volume (a product of the number of pixels in the image and the density units above background in each pixel). The text includes a discussion of the photometry, corrections thereto due to threshold and saturation effects, and its comparison with theoretical expectation, stellar model atmospheres, and a generalized far-ultraviolet interstellar extinction law. The S201 catalog is also available on a single reel of seven-track magnetic tape. (Author).
Author : Thornton Page
Publisher :
ISBN 13 :
Total Pages : 163 pages
Book Rating : 4.:/5 (399 download)
Download or read book S201 Catalog of Far-ultraviolet Objects written by Thornton Page and published by . This book was released on 1978 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Astronomical Data Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.3/5 (91 download)
Download or read book Astronomical Catalog Desk Reference written by Astronomical Data Center (U.S.) and published by . This book was released on 1994 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1250 pages
Book Rating : 4.3/5 (121 download)
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author : Astronomical Data Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.3/5 (91 download)
Download or read book Astronomical Data Center Bulletin written by Astronomical Data Center (U.S.) and published by . This book was released on 1980 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1030 pages
Book Rating : 4.:/5 (1 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1983-04 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : International Astronomical Union. Symposium
Publisher : Springer Science & Business Media
ISBN 13 : 9780792308416
Total Pages : 546 pages
Book Rating : 4.3/5 (84 download)
Download or read book The Galactic and Extragalactic Background Radiation written by International Astronomical Union. Symposium and published by Springer Science & Business Media. This book was released on 1990-08-31 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 139th Symposium of the International Astronomical Union on `The Galactic and Extragalactic Background Radiation, held in Heidelberg, FRG, June 12-16, 1989
Author :
Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (31 download)
Download or read book NSSDC Data Listing written by and published by . This book was released on 1994 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thornton T. Page
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (227 download)
Download or read book Revised Listing - S201 Far-Ultraviolet Atlas of the Large Magellanic Cloud written by Thornton T. Page and published by . This book was released on 1981 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Far-ultraviolet electrographic images, covering the wavelength ranges 1050 to 1600 angstroms and 1230 to 1600 angstroms, were obtained of the Large Magellanic Cloud during the Apollo 16 mission with the NRL Far-Ultraviolet Camera/Spectrograph (Experiment S201). The images were analyzed as described in the 'S201 Far-Ultraviolet Atlas of the Large Magellanic Cloud' (NRL Report 8206), and the 'Revised S201 Catalog of Far-Ultraviolet Objects' (NRL Report 8487). The listing of far-UV objects in the LMC provided here is improved in quantitative accuracy and completeness compared to that originally provided in NRL Report 8206. These improvements include more accurate estimates of interstellar extinction corrections, comparisons with more sensitive ground-based H alpha emission measurements, and calibration of the S201 photometry by comparison with OAO-2 photometry of objects in common. The listing presents ultraviolet brightnesses, measured on one or more of four frames (two 1050 - 1600 angstroms and two 1250 - 1600 angstroms exposures), for 473 objects or gruopings of objects in the LMC. Also listed, where available, are H alpha brightnesses of associated nebulosities, and values of hydrogen index (defined as ratio of H alpha brightness to far-UV brightness, both corrected for interstellar extinction). (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.7/5 (738 download)
Download or read book International Ultraviolet Explorer (IUE) NASA Newsletter written by and published by . This book was released on 1979 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Böhme
Publisher : Springer Science & Business Media
ISBN 13 : 3662123525
Total Pages : 1157 pages
Book Rating : 4.6/5 (621 download)
Download or read book Literature 1985, Part 1 written by S. Böhme and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 1157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronomy and Astrophysics Abstracts aims to present a comprehensive documen tation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of the relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 39 records literature published in 1985 and received before August 15, 1985. Some older documents which we received late and which are not surveyed in earlier volumes are included too. We acknowledge with thanks contributions of our colleagues all over the world. We also express our gratitude to all organiza tions, observatories, and publishers which provide us with complimentary copies of their publications. On account of the introduction of an object index the scope of index information will be considerably enlarged beginning with this volume. In connection with the subject index an additional source to satisfy the needs of retrieval is opened up. Starting with Volume 33, all the recording, correction, and data processing work was done by means of computers. The recording was done by our technical staff members Ms. Helga Ballmann, Ms. Mona El-Choura, Ms. Monika Kohl, Ms. Sylvia Matyssek. Ms. Karin Burkhardt, Ms. Susanne Schlotelburg, and Mr. Stefan Wagner supported our task by careful proofreading. It is a pleasure to thank them all for their encouragement. Heidelberg, September 1985 The Editors Contents Introduction . . . . . . . . . . . .
Author : International Astronomical Union
Publisher :
ISBN 13 :
Total Pages : 724 pages
Book Rating : 4.0/5 ( download)
Download or read book Transactions of the International Astronomical Union written by International Astronomical Union and published by . This book was released on 1988 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
