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1. BEST-II catalog of variables. III. Puppis field
ID:
ivo://CDS.VizieR/J/AJ/156/204
Title:
BEST-II catalog of variables. III. Puppis field
Short Name:
J/AJ/156/204
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Berlin Exoplanet Search Telescope II (BEST II) is a ground-based, small aperture, wide-angle telescope used to search for stellar light variations in the southern hemisphere. We report the results of a monitoring campaign observing a field in the Puppis constellation in late 2011/early 2012. Light curves were obtained for 130472 stars, out of which we identify 2169 variables, including 1829 newly discovered, 26 previously known, and 314 suspected variable stars. We determine periods and variability class for two previously known, but only suspected to be, variable stars. For eight individual eclipsing binary stars, including the two previously known but unclassified binaries, the system parameters were derived at the epoch of the observation by modeling the light curves. Eventually, in a catalog for all variable stars, we present coordinates, magnitude, and elements of light variations, e.g., epoch, period, amplitude, type, and light curves. This catalog concludes the BEST/BEST II project.
2. Constellation Boundary Data
ID:
ivo://CDS.VizieR/VI/49
Title:
Constellation Boundary Data
Short Name:
VI/49
Date:
21 Oct 2021
Publisher:
CDS
Description:
A computer readable catalog of constellation boundary data is presented in a form suitable for the construction of star charts and atlases. Two data files are available, one for equator and equinox 1875 and the other for equator and equinox 2000. In addition to the data files a documentation file is available that includes a table listing the abbreviations used for the constellations as well as a more detailed discussion of the preparation of the catalog. The present catalog of constellation boundary data is complementary to that of Roman (1987). Roman's catalog should be used to determine in which constellation an object lies in. The present catalog is more suited to the construction of star charts and atlases. Both catalogs were based on Delporte (1930).
3. Constellations as Polygons
ID:
ivo://org.gavo.dc/cstl/q/cone
Title:
Constellations as Polygons
Short Name:
cstl cone
Date:
27 Dec 2024 08:31:13
Publisher:
The GAVO DC team
Description:
This cone search will return all constellations within the cone, together with the J2000 polygons of them.
4. Identification of a Constellation From Position
ID:
ivo://CDS.VizieR/VI/42
Title:
Identification of a Constellation From Position
Short Name:
VI/42
Date:
21 Oct 2021
Publisher:
CDS
Description:
A table of constellation boundaries was rearranged to permit the rapid identification of the constellation to which a position refers. A software program is provided to precess positions at another equinox to those at 1875.0.
5. The Constellations of the Zodiac
ID:
ivo://edu.gavo.org/eurovo/cosadie_zodiac
Title:
The Constellations of the Zodiac
Date:
27 Dec 2024 08:31:12
Publisher:
The GAVO DC team
Description:
Within this use case you learn about the constellations of the Zodiac, i.e. those crossed by the apparent path of the Sun during the year. Together with some characteristics the orbital motion of the Earth, in this use case you also find a short excursion into history of astronomy. The use case also introduces the precession of the equinoxes.
6. The Sky
ID:
ivo://edu.gavo.org/eurovo/aida_the_sky
Title:
The Sky
Date:
27 Dec 2024 08:31:13
Publisher:
The GAVO DC team
Description:
The Earth rotates around its polar axis and orbits around the Sun: the sky above us (the celestial sphere) is in constant apparent motion. Stellarium is the perfect tool to demonstrate the motions of the sky, the use of coordinates and to illustrate constellations.
7. Uranometria Argentina catalog of bright southern stars
ID:
ivo://CDS.VizieR/V/135A
Title:
Uranometria Argentina catalog of bright southern stars
Short Name:
V/135A
Date:
21 Oct 2021
Publisher:
CDS
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.