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84 stars entered in Flamsteed's catalog are errors and proved not to exist in the sky: [7] All of them except 11 Vulpeculae were plotted on his star charts. Flamsteed observed Uranus in 1690 but did not recognize it as a planet and entered it into his catalog as a star called "34 Tauri". 11 Vulpeculae was a nova, now known as CK Vulpeculae.
Star polygon, a star drawn with a number of lines equal to the number of points Pentagram, a five-pointed star polygon Five-pointed star, a pentagram with internal line segments removed; Lute of Pythagoras, a pentagram-based fractal pattern; Hexagram, a six-pointed star polygon; Heptagram, a seven-pointed star polygon
An illustration of the constellation Perseus (after Perseus from Greek mythology) from the star atlas published by the Polish astronomer Johannes Hevelius in 1690. A star catalogue is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues ...
To enable rapid access of specific stars in the catalogue, WCSTools software numbers each star using its Guide Star region number (0001 to 9537) and a five-digit star number within each region, separated by a decimal point. sty2 lists Tycho-2 stars by number or sky region. imty2 lists the Tycho-2 stars within an IRAF or FITS image using the world coordinate system defined in its header.
"Clean" export headstamp used by Hirtenberger – with the stars at 3 o'clock and 6 o'clock, the 2-digit year at 12 o'clock, and the caliber at 6 o'clock. The marks are either two 5-point stars, two 6-point asterisks, or a 5-point star and a 6-point asterisk. B Wöllersdorfer Werke Berndorf – Berndorf, Bezirk Baden, Lower Austria, Austria.
BD star numbers are still used and allow the correlation of the work with modern projects. The format of a BD number is exemplified by "BD−16 1591", which is the BD number of Sirius . This number signifies that in the catalog, Sirius is the 1591st star listed in the declination zone between −16 and −17 degrees, counting from 0 hours right ...
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A first version was created in 2013, a more refined version in April 2014. In total, the Attitude Star Catalog contains 8,173,331 entries with information on position, proper motion and magnitude. [4] Starting with Gaia DR2, the Attitude Star Catalog was replaced with a new list generated from the Gaia Main Data Base (MDB), using the same criteria.