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Topic: Hipparcos Catalogue

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Tycho Catalogue

Hipparcos

Canopus (star)

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Grand Nagus Zek

Bellatrix

Mizar

Mintaka

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List of nearest stars

	Hipparcos - Wikipedia, the free encyclopedia
		Hipparcos (for High Precision Parallax Collecting Satellite) was an astrometry mission of the European Space Agency (ESA) dedicated to the measurement of stellar parallax and the proper motions of stars.
		The final Hipparcos Catalogue (120,000 stars with 1 milliarcsec level astrometry) and the final Tycho Catalogue (more than one million stars with 20-30 milliarcsec astrometry and two-colour photometry) were completed in August 1996.
		The Hipparcos and Tycho data have been used to create the Millennium Star Atlas: an all-sky atlas of one million stars to visual magnitude 11, from the Hipparcos and Tycho Catalogues and 10,000 nonstellar objects included to complement the catalogue data.
	en.wikipedia.org /wiki/Hipparcos (268 words)

	ESA Portal - Information Notes - Value of Hipparcos Catalogue shown by planet assessments
		With the Catalogue's completion, the Hipparcos mission achieves its purpose of revolutionizing astrometry, the positional science that has underpinned mankind's studies of the Universe since the satellite's namesake Hipparchus the Greek surveyed the sky in the 2nd Century BC.
		Their positions will be less precise than in the Hipparcos Catalogue, but still far better than the ground-based results, and will include valuable data on the colours of stars.
		Striding the light-years by parallax The study of stars with candidate planets is a dramatic example of Hipparcos's new determinations of the distances of stars by the parallax principle.
	www.esa.int /esaCP/Pr_18_1996_i_EN.html (1560 words)

	Hipparcos
		The Hipparcos Catalogue (118 218 entries) and the Tycho Catalogue (1 058 332 entries) - the two catalogues resulting from the Hipparcos space astrometry mission - were both declared final on 8 August 1996, 3 years after the end of satellite operations.
		For the Hipparcos Catalogue, median astrometric accuracies are around 1 milliarcsec; 10% of the objects have accuracies better than about 0.5 milliarcsec; 49 399 of the 118 218 objects have distances determined to better than 20%.
		The general catalogue release was preceeded by the scientific symposium Hipparcos Venice '97, held on Isola di S. Giorgio, Venice, 13-16 May 1997, organised by the Project Scientist and P.L. Bernacca with the support of the Hipparcos Science Team.
	esapub.esrin.esa.it /sp/sp1211/hipparc2.htm (672 words)

	The Hipparcos Space Astrometry Mission: The Hipparcos and Tycho Catalogues
		The catalogues were constructed under the responsibility of large scientific teams collaborating with ESA.
		ESA, 1997, The Hipparcos and Tycho Catalogues, ESA SP-1200
		A Hipparcos helpdesk is available (send the query to hipparcos@rssd.esa.int) in the event that even after consulting the documentation a user may still have difficulty using the Catalogues: we will try to advise.
	www.rssd.esa.int /Hipparcos/catalog.html (745 words)

	Hipparcos Catalogue - Wikipedia, the free encyclopedia
		The global data analysis tasks, proceeding from nearly 1000 Gbit of raw satellite data to the final catalogues, was a lengthy and complex process, and was undertaken by the NDAC and FAST Consortia, together responsible for the production of the Hipparcos Catalogue.
		A fourth scientific consortium, the INCA Consortium, was responsible for the construction of the Hipparcos observing programme, compiling the best-available data for the selected stars before launch into the Hipparcos Input Catalogue.
		The production of the Hipparcos and Tycho Catalogues marks the formal end of the involvement in the mission by the European Space Agency and the four scientific consortia.
	en.wikipedia.org /wiki/Hipparcos_catalogue (224 words)

	Cnes - Hipparcos the star collector
		Hipparcos, the first-ever astrometry satellite, acquired data used to compile a new star catalogue published in 1997.
		Hipparcos was launched in 1989, carrying a telescope as its main payload, and continued operating until 1993.
		In the end, 2 star catalogues were in fact compiled: the Hipparcos catalogue, recording data of unprecedented accuracy on some 120,000 stars, and the Tycho catalogue, containing less precise data but covering more than 2.5 million stars.
	www.cnes.fr /html/_455_472_1732_1736_.php (321 words)

	[No title] (Site not responding. Last check: 2007-08-21)
		The Hipparcos and Tycho Catalogues This is one of the six CD-ROM sets containing the Hipparcos and Tycho Catalogues: astrometric and photometric star catalogues derived from the ESA Hipparcos Space astrometry mission.
		Contents of the Catalogues: Each of the catalogues includes a large quantity of very high quality astrometric and photometric data, as well as annexes featuring variability and double/multiple star data.
		In the case of the Hipparcos Catalogue, the principal parts are provided in both printed and machine-readable form.
	ngdc.noaa.gov /wdc/datalists/astronomy_beijing/catolog/Hip_Tycho.htm (387 words)

	The Hipparcos Input Catalogue
		The Hipparcos Input Catalogue was constructed as the observing programme for the European Space Agency's Hipparcos astrometry mission.
		The requirements of the project in terms of completeness, sky coverage, astrometric and photometric accuracy, as well as the necessary optimisation of the scientific impact, resulted in an extended effort to compile and homogenize existing data, to clarify sources and identifications and, where needed, to collect new data matching the required accuracy.
		The catalogue is complete to well-defined magnitude limits, and includes a substantial sampling of the most important stellar categories present in the solar neighbourhood beyond these limits.
	wwwhip.obspm.fr /hipparcos/introsp1136/node1.html (171 words)

	HIC - Hipparcos Input Catalog
		The Hipparcos Input Catalogue was constructed as the observing program for the European Space Agency's Hipparcos astrometry mission.
		The requirements of the project in terms of completeness, sky coverage, astrometric and photometric accuracy, as well as the necessary optimization of the scientific impact, resulted in an extended effort to compile and homogenize existing data, to clarify sources and identifications, and, where needed, to collect new data matching the required accuracy.
		`Hipparcos magnitude` is defined by the pass-band of the Hipparcos main detection chain which ranges from 340 to 850 nm.
	starchild.gsfc.nasa.gov /W3Browse/star-catalog/hic.html (1870 words)

	The Hipparcos Catalogue and the ICRS
		The extragalactic sources were not directly observable by the Hipparcos satellite and so the link from Hipparcos to ICRF was established through a variety of indirect techniques: VLBI and conventional interferometry of radio stars, photographic astrometry and so on.
		The Hipparcos frame is aligned to the ICRF to within about 0.5 mas and 0.5 mas/year (at epoch 1991.25).
		The Hipparcos catalogue includes all of the FK5 stars, which has enabled the orientation and spin of the latter to be studied.
	www.hartrao.ac.za /nccsdoc/slalib/sun67.htx/node216.html (393 words)

	[No title] (Site not responding. Last check: 2007-08-21)
		I/239 The Hipparcos and Tycho Catalogues (ESA 1997) ================================================================================ The Hipparcos and Tycho Catalogues ESA 1997
		In the case of the Hipparcos Catalogue, the principal parts are provided in both printed and machine-readable form (on CDROM).
		The 'T' flag implies either an inconsistency between the Hipparcos and Tycho catalogues, or a deficiency in one or both of the catalogues.
	republika.pl /astro_cd/hipp-f.txt (3583 words)

	Hipparcos Catalogue main characteristics
		The Hipparcos Catalogue characteristics are described in full detail in the documentation accompanying the catalogue.
		The Tycho Catalogue is also described in details in the documentation and a summary presented in Høg et al.
		The accuracy of the astrometric parameters of double and multiple entries may be slightly degraded with that of comparably bright single stars, depending on the component separation and magnitude difference.
	astro.u-strasbg.fr /howfar/turon/node2.html (421 words)

	Astrometric Properties Of The Hipparcos Catalogue - Mignard (ResearchIndex) (Site not responding. Last check: 2007-08-21)
		This includes the overall figures useful to characterize the content of the Hipparcos Catalogue, meaningful for an average star of 9 mag.
		Mignard, F. 1997 Astrometric Properties of the HIPPARCOS Catalogue In Proceedings of the ESA Symposium "Hipparcos - Venice '97' " ESA SP-402.
		The Parallax Of The Pleiades Cluster - van Leeuwen, Ruiz
	citeseer.ist.psu.edu /209219.html (292 words)

	ESA Science & Technology: About the mission
		Launched in August 1989 Hipparcos was a pioneering space experiment dedicated to the precise measurement of the positions, parallaxes and proper motions of the stars.
		Computations from observations by the main instrument generated the Hipparcos Catalogue of 118 218 stars charted with the highest precision.
		The directions and motions of stars in the Hipparcos Catalogue are precise to about one milli-arcsecond, or a quarter of a millionth of a degree.
	sci.esa.int /science-e/www/object/index.cfm?fobjectid=31905 (720 words)

	Hipparcos Catalogue
		A catalogue of 118,218 stars, mostly down to magnitude 8 but with a sampling of dimmer ones (chosen for their unusual or interesting properties), surveyed by the Hipparcos satellite and published in 1997.
		It contains the most precise measurements of positions, parallaxes, proper motions, and magnitudes ever made; although for stars dimmer than the ones surveyed, other catalogues must still be used.
		Magnitudes given by the Hipparcos dataset were measured using a device sensitive to a wide range of wavelengths (mostly visual).
	www.daviddarling.info /encyclopedia/H/Hipparcos_Catalogue.html (202 words)

	Star Catalogue Auxiliary Products (Site not responding. Last check: 2007-08-21)
		The star catalogue contains information related to all the stars of the general Hipparcos star catalogue up to magnitude 4.5 (898 stars), planets (Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune), the Moon, and a set of dark areas.
		However, as the Hipparcos star catalogue does not guarantee the completeness of the list of stars above magnitude 8, it has been preferred to keep this value and to refine the set of dark areas during the commissioning phase.
		The star identifier in the GOMOS catalogue is provided in increasing order of magnitude (for example, Sirius has the number 1).
	envisat.esa.int /dataproducts/gomos/CNTR2-6-3-1-2.htm (1752 words)

	The Tycho Reference Catalogue
		I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
		Comparison with the recent ACT Catalogue which is based on an independent reduction of the same observations as used for constructing the TRC is reported.
		Sect 18.4 of Vol 4 of "The Hipparcos and Tycho Catalogues", ESA SP-1200, 1997).
	www.cs.wisc.edu /niagara/data/nasa/1250.xml (897 words)

	Hipparcos Transit Data
		They allow the user to re-interpret the Hipparcos raw data in terms of arbitrary models of the astronomical objects that were observed, without having to worry about complex issues such as the geometric and photometric calibration of the instrument, or how it was pointed as function of time (satellite attitude).
		In principle, it should be possible to reproduce the astrometric results published in the Hipparcos Catalogue, including its Double and Multiple Systems Annex, by analysing the TD in terms of the same models [single star, double star with fixed components, etc] as was assumed in the Catalogue, although that would be a rather pointless exercise.
		In the published Hipparcos Catalogue, the results from the two consortia were compared and combined in order to achieve, statistically, the best possible accuracy on every object.
	www.astro.lu.se /~lennart/TD (1395 words)

	ARI: ARIHIP: DESCRIPTION OF EXTENDED VERSION
		alpha is given in the printed catalogue in the conventional sexagesimal units of hours, minutes of time, and seconds of time.
		delta is given in the printed catalogue in the conventional sexagesimal units of degrees, minutes of arc, and seconds of arc.
		Field 20: K_p Flag for the source of p : H = HIPPARCOS Catalogue (ESA 1997) P = photometric/spectroscopic parallax Field 21: v_rad Radial velocity v_rad of the star, used in calculating the foreshortening effect.
	www.ari.uni-heidelberg.de /datenbanken/arihip/arihdx01.html (824 words)

	The Hipparcos Space Astrometry Mission: Site Guide
		Proceedings from the Hipparcos Venice '97 symposium presenting The Hipparcos and Tycho Catalogues and first astrophysical results of the Hipparcos astrometry mission
		"Hipparcos pinpoints the stars" is an on-line reproduction of a Hipparcos poster available from ESA which illustrates some applications of the Hipparcos data
		The symposium had three main aims: to present the Hipparcos and Tycho Catalogues to the scientific community; to present the first astrophysical results from the Hipparcos mission and to reflect on possibilities offered by astrometry from space in the future.
	www.rssd.esa.int /Hipparcos/site-guide.html (994 words)

	ESA Science & Technology: Hipparcos
		Hipparcos is the first space mission dedicated to measuring the positions of the stars.
		Unique to Europe was the very first space mission for measuring the positions, distances, motions, brightness and colours of stars - for astrometry, as the experts call it.
		The primary product from this pioneering and successful mission was a set of stellar catalogues, The Hipparcos and Tycho Catalogues, published by ESA in 1997.
	sci.esa.int /science-e/www/area/index.cfm?fareaid=20 (175 words)

	HTML Help for OBS_CAT
		Many such catalogues can be concatenated together (without the time header) to provide input for the scheduler OBS_LIST.
		All objects in the Hipparcos catalogue within the fov/2 of the target are selected and subjected to a series of tests.
		All surviving objects (target first) are written to the output catalogue in order of apparent proximity to the target (nearest first).
	www-mipl.jpl.nasa.gov /vicar/dev/html/vichelp/obs_cat.html (332 words)

	Hipparcos and ROSAT Catalogues Accessible to CURSA
		Versions of the Hipparcos catalogues and the ROSAT All-Sky Survey Bright Source Catalogue [2], have been prepared in a format which is fully compatible with the CURSA package [1] for manipulating catalogues and tables.
		Note that the Hipparcos catalogues are available as both ASCII files and FITS tables and the CURSA conversion programs require the ASCII versions as their starting point.
		The ROSAT All-Sky Survey Bright Source Catalogue (RASS-BSC, revision 1RXS) [2] was assembled from the all-sky survey performed by the ROSAT X-ray astronomy satellite (Röntgensatellit) during 1990 and 1991.
	star-www.rl.ac.uk /Bulletin/98apr/node19.html (585 words)

	Modern catalogues for var-star comparisons
		The exercise emphasises the fact that modern catalogue data is too contextual in its nature to be plucked from its source and forced into service on an arbitrary basis.
		That is, all the Johnson V magnitudes listed in the Tycho Catalogue are derived from the Tycho V magnitudes as reduced from the direct measurements made by the spacecraft, and as such constitute a homogeneous whole.
		According to the introduction to the catalogues, well over half the stars have Johnson V magnitudes that have been shown to be good to at least +/-0.1 of a magnitude.
	www.britastro.org /vss/jg-tycho.html (3264 words)

	Hipparcos: The Catalogue (Site not responding. Last check: 2007-08-21)
		The HIPPARCOS and TYCHO Catalogues are being published by the ESA Publications Division, ESTEC, on behalf of the FAST, NDAC, TDAC and INCA Consortia.
		Principal Catalogues and Annexes are being provided in both printed and machine-readable (CD-ROM) form.
		Requests for these catalogues should be sent to ESA (see Order Form in the ESA Hipparcos pages), as CDS is not distributing the printed volumes or the sets of CD-ROMs.
	cdsweb.u-strasbg.fr /hipparcos.html (170 words)

	Hipparcos Tycho Catalog (Site not responding. Last check: 2007-08-21)
		The 1,058,332-star Tycho Catalogue is one of the primary products of the European Space Agency's astrometric satellite, Hipparcos, which collected data for four years, from November 1989 to March 1993.
		The Tycho Catalogue can be searched by stycho (which calls scat) and plotted by skymap.
		The ACT catalog combines positions and photometric data from the Tycho Catalog with proper motions computed using earlier epoch positions from the USNO AC2000, and gives better positions away from the Hipparcos epoch, especially for fainter Tycho stars.
	tdc-www.harvard.edu /software/catalogs/tycho.html (243 words)

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