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V/135A      Uranometria Argentina catalog of bright southern stars (Gould, 1879)

Resultados del Observatorio Nacional Argentino en Cordoba, Vol.1: Uranometria Argentina. Brightness and position of every fixed star, down to the seventh magnitude within one hundred degrees of the South Pole. Gould B.G. <Resultados del Observatorio Nacional Argentino en Cordoba ; v. 1, Buenos Aires : Impr. de P.E. Coni, 1879., xv, 385 p. ; 32 cm.> =1879RNAO....1.....G
ADC_Keywords: Historical catalog ; Cross identifications ; Constellations Description: In 1879 Benjamin Apthorp Gould published in Buenos Aires, Argentina, the Uranometria Argentina catalog of 7756 stars south of declination +10 degrees. This included all those stars he considered magnitude 7 or brighter and some fainter stars which are close companions to brighter stars or to each other and have combined magnitude 7 or brighter. Star positions are in 1875 coordinates, and constellation boundaries also in 1875 coordinates were defined within the aforementioned declination range. With only a few small changes these were incorporated into the boundaries adopted by the IAU in 1930 and subsequently universally accepted. In terms of accurate photoelectric magnitude measurements the Uranometria Argentina is nearly complete to magnitude 6.5 in its declination range. In each constellation the individual stars considered to be magnitude 7 and brighter were numbered in sequence of increasing right ascension in 1875 coordinates, except that in a few cases this sequence was somewhat adjusted so that stars close together could be listed on adjacent lines of text. The numbering system is analogous to that in the Flamsteed Catalogus Brittanicus and now widely used. Star numbers from the Uranometria Argentina rarely appear in the 21st century despite the potential utility of their use. They were included in the American Ephemeris and Nautical Almanac until 1978, and in the FK5 catalog until 1999, always with the letter G following the number in the Uranometria Argentina catalog. This serves to distinguish Flamsteed numbers with no following letters from Gould numbers, and is utilized in this presentation and recommended for general use. The file catalog.dat includes every star in the original Uranometria Argentina. In the original the constellations were presented in sequence of increasing distance from the south pole and numbered accordingly. For the convenience of 21st century astronomers the constellations are presented here by alphabetical sequence in constellation name and the stars in each constellation in the same sequence as in the original. A separate file notes.txt includes a large number of notes for individual stars and for groups of stars recognized in the original catalog as belonging together. Each note is referenced by an asterisk * in the file catalog.dat. Columns 43-63 provide J2000 coordinates and cross identifications from the Flamsteed, HD, and SAO catalogs for the stars and have been added by the author of this data set. Columns 82-154 have been copied verbatim from the Uranometria Argentina catalogue, except that where asterisks are shown errors in the original printed catalogue have been corrected and the originally published values are stated in the notes. Two publications state corrections to the printed Uranometria Argentina. These are by B.A. Gould, Astronomische Nachrichten 116, 379-382 (1887AN....116..379G), and by T. W. Backhouse, Astronomical Journal 12, 112 (1892AJ.....12Q.112B). All of these, and a few others, mostly typographical misprints found by the present author, are presented in this digital version. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 168 8471 The Catalogue (with fixes of July 2013) notes.dat 123 2567 Individual notes (with fixes of July 2013) comments.txt 165 374 Additional comments catalog.ori 145 8473 Original catalog file sent by F. Pilcher notes.ori 165 3375 Original notes file sent by F. Pilcher
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1 A1 --- f_G [G] Letter G indicating this number refers to the star designation in the Gould catalog Uranometria Argentina 3- 5 I3 --- G [1/393]? Number in printed Uranometria Argentina (blank if not in Gould Uranometria) 7- 9 A3 --- cst Three letter abbreviation of the constellation name under which the star appears in the Uranometria Argentina 10 A1 --- n_G [*?] Unnumbered or unidentified star (1) 11- 13 I3 --- F ? Star number in John Flamsteed's "Historia Coelestis Brittanica" 14 A1 --- f_F [*] An asterisk indicates this star has a letter which appears in some catalogues but not in the Uranometria Argentina, or therein under a different letter. 15- 22 A8 --- let Greek or Roman letter, in some cases with a following number, commonly associated with the star 23 A1 --- n_let [*] Indicates a note in notes.dat file 24- 28 F5.2 mag Vmag ? Magnitude of the star in the V system 29- 31 A3 --- Var [:v?Vd ] Denotes variability or possible variability 32- 40 A9 --- Spec MK spectral class (2) 41 A1 --- n_Spec [*] Indicates a note in notes.dat file 43- 44 I2 h RAh ? Right Ascension J2000 (hours) 46- 47 I2 min RAm ? Right Ascension J2000 (minutes) 49- 52 F4.1 s RAs ? Right Ascension J2000 (seconds) 55 A1 --- DE- Declination J2000 (sign) 56- 57 I2 deg DEd ? Declnation J2000 (degrees) 59- 60 I2 arcmin DEm ? Declination J2000 (minutes) 62- 63 I2 arcsec DEs ? Declination J2000 (seconds) 66- 71 I6 --- HD ? Star number in the Henry Draper (HD) catalogue 72 A1 --- m_HD [ABC] Occasionally an HD star number is followed by a letter stated here. 74- 79 I6 --- SAO ? Star number in the Smithsonian Astrophysical Observatory (I/131) catalogue 80 A1 --- m_SAO Occasionally a SAO star number is followed by a letter stated here. 81 A1 --- n_Ref [*] Concerns the second star (3) 82- 98 A17 --- Ref Star numbers from pre-1875 catalogues referenced in the Uranometria Argentina (4) 99 A1 --- n_RA1875h [*] Indicates a note in notes.dat file when no position 100-101 I2 h RA1875h ? Right Ascension epoch 1875 (hours) as printed in the Uranometria Argentina. 103-104 I2 min RA1875m ? Right Ascension epoch 1875 (minutes) as printed in the Uranometria Argentina. 106-107 I2 s RA1875s ? Right Ascension epoch 1875 (seconds) as printed in the Uranometria Argentina. 108 A1 --- n_RA1875s [*] Indicates a note in notes.dat file 110 A1 --- DE1875- Declination epoch 1875 (sign) 111-112 I2 deg DE1875d ? Declination epoch 1875 (degrees) as printed in the Uranometria Argentina. 114-117 F4.1 arcmin DE1875m ? Declination epoch 1875 (minutes) as printed in the Uranometria Argentina. 118 A1 --- n_DE1875m [*] Indicates a note in notes.dat file 119 A1 --- b [#] Pound signs (#) on two or more successive lines indicate that in the Uranometria Argentina these stars are connected with curly braces as appearing like a single star through a low power glass 120-124 A5 --- Amag Magnitude as printed in the Uranometria Argentina 131 A1 --- n_Amag [*] Indicates a note in notes.dat file 132-155 A24 --- Comm Notes as printed in the Uranometria Argentina (5) 157 A1 --- n_Name [Gfpb] Actual star concerned by the note (G1) 158-168 A11 --- Name Name used to identify objects (G1)
Note (1): An asterisk * indicates this star appears without a number in the Uranometria Argentina, or is not identified with modern data omitted, or that this star now lies in a different constellation from that assigned in the Uranometria Argentina. Note (2): If the spectral class contains more than 8 characters, an abbreviated form is shown the main table with an asterisk referring to a note. Note (3): An asterisk is used for the second star of a star pair for which only a single data set is printed in the Uranometria Argentina. Note (4): The catalogues to which the letters refer (the acronyms) are: F = John Flamsteed. Historia Coelestis Britannica. (Ed. Halley.) Londini: 1818. By = Fundamenta Astronomiae, pro anno 1755 deducta, ex observationibus viri incomparabilis James Bradley. Auctore F. W Bessel. Regiomonti: 1818. L = A Catalogue of 9766 stars in the Southern Hemisphere, from the observations of Nicolas Louis Lacaille, made at the Cape of Good Hope in the years 1751 and 1752. Reduced at the expense of the British Association for the Advancement of Science, under the superintendence of Mr. Thomas Henderson; and printed under the direction of Mr. Francis Baily. London: 1847. Ll = A Catalogue of those stars in the Histoire Celeste Francaise of Jerome de LaLande, for which tables of reduction to the epoch 1800.0 have been published by Professor Schumacher. Reduced at the expense of the British Association for the Advancement of Science, under the immediate superintendence of Mr. Francis Baily. London: 1847. B = A Catalogue of 7385 stars, chiefly in the Southern Hemisphere, prepared from observations made in the years 1822-6 at the Observatory at Paramatta founded by Sir Thomas Makdougall Brisbane. The computations made and the catalogue constructed by Mr. William Richardson. London: 1835. J = A Catalogue of 606 principal fixed stars in the Southern Hemisphere, deduced from observations made at the Observatory, St. Helena, by Manuel J. Johnson. London: 1835. T = A General Catalogue of the principal fixed stars, from observations made at the Hon. East India Company's Observatory at Madras, in the years 1830-43 by Thomas Glanville Taylor, Astronomer to the Hon. Company. Madras: 1844. G = A Catalogue of 1963 stars, reduced to the beginning of the year 1850, from observations made at Santiago de Chile, during the years 1850-52, by the U. S. N. Astronomical Expedition to the Southern Hemisphere, Lt. James M. Gilliss, superintendent. Washington: 1870. (Appendix to Washington Observations of 1868.) WB = Positiones Mediae Stellarum Fixarum, in Zonis Regiomontanis a Besselio inter -15° et +15° declinationis observatarum, ad annum 1825 reductae, et in catalogum ordinatae. Auctore, Maximiliano Weisse. Jussu Academiae Imperalis Petropolitanae edi curavit et praefatus est F. G. W. Struve. Petropoli: 1846. OA = Argelander's Zonenbeobachtungen von 15. bis 31. Grade Sudlicher Declination in mittleren Positionen fur 1850.0, von Wilhelm Oeltzen. Sitzungsberichte der Wiener Akademie: 1857-58. Y = Catalogue of stars, observed at the U. S. Naval Observatory during the years 1845-71, and prepared for publication, by Professor M. Yarnall. Washington: 1873. Note (5): In the original printed Uranometria Argentina some abbreviations are shown in the far right column, and these are duplicated here. Their meanings are: var = variable dpl = double tpl = triple r = red star rr = very red star c = colored star cum = cumulative, or combined magnitude of several stars, a cluster or nebula
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1 A1 --- n_Name [Gbfp] Actual star concerned by the note (G1) 2- 12 A11 --- Name Name of the star (G1) 14-123 A110 --- Note Text of the note
Global notes: Note (G1): the star name consists in the star number in the constellation (column "G") followed by the letter 'G' (for Gould, to avoid any confusion with Flamsteed numbers) and the constellation name (note that the 2 parts of the Ser constellation are distinguished here, see the "History" section below). The symbol in the column "n_Name" specifies which star is concerned by the note: G = concerns the designated source p = concerns the source in the line preceding the source indicated f = concerns the source in the line following the source indicated b = concerns the source between the source indicated and an other source specified in the note
Acknowledgements: Frederick Pilcher, pilcher(at) History: * 20-Jul-2010: Original version * 15-Aug-2011: Column "Name" contains the recommended "Gould" name (number followed by a 'G'). * 12-May-2012: in column "Name", the 2 parts of the Serpens constellation are distinguished as SerCap (Serpens Caput) and SerCau (Serpens Cauda) (this version is available in the "version.0" subdirectory) * 30-Sep-2013: Version 'A', which includes the following changes: -- Inclusion of errata published with the original Uranometria Argentina catalog, not included in initial electronic version; -- The swapping of a small number of stars where Gould has assigned a Gould number to the dimmer star of a pair; -- The use of "G" in the notes whenever referring to a Gould number, and some shuffling of text where the additional characters made the line too long; -- Various typos fixed
(End) Frederick Pilcher, Patricia Vannier [CDS] 20-Jul-2010
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