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Easy to use monthly star maps for northern and southern hemispheres. Helpful target lists for naked eye, binocular, or telescope viewing. Collection of rare star atlases, charts, and maps Archived 2018-03-25 at the Wayback Machine available in full digital facsimile at Linda Hall Library. Navigable online map of the stars, Stellarmap.com.
c. 300 BC — star catalog of Timocharis of Alexandria; c. 134 BC — Hipparchus makes a detailed star map; c. 150 — Ptolemy completes his Almagest, which contains a catalog of stars, observations of planetary motions, and treatises on geometry and cosmology; c. 705 — Dunhuang Star Chart, a manuscript star chart from the Mogao Caves at Dunhuang
The Jewel Box cluster is one of the youngest known open clusters. The mean radial velocity of the Jewel Box cluster is −21 kilometres per second (−13 mi/s). [2] The brightest stars in the Jewel Box cluster are supergiants, and include some of the brightest stars in the Milky Way galaxy. [10]
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An online star chart; Monthly sky maps for every location on Earth Archived 2007-09-13 at the Wayback Machine; The Evening Sky Map – Free monthly star charts and calendar for northern hemisphere, southern hemisphere, and equatorial sky watchers. Sky Map Online – Free interactive star chart (showing over 1.2 million stars up to magnitude 12)
κ Crucis is a B3 bright supergiant (luminosity class Ia). Radial velocity variations in the spectral lines indicate that it has an unresolved companion star. [9] It is over 100,000 times the luminosity of the Sun, partly due to its higher temperature over 16,300 K, and partly to its larger size.
Cheonsang Yeolcha Bunyajido (Korean: 천상열차분야지도; Hanja: 天象列次分野之圖; Korean pronunciation: [t͡ɕʰʌnsɐŋ jʌɭt͡ɕʰɐ puȵɐd͡ʑido]) is a fourteenth-century Korean star map, copies of which were spread nationwide in the Joseon Dynasty. The name is sometimes translated as the "chart of the constellations and the ...
The whole set of star maps contained 1,300 stars. The Dunhuang map or Dunhuang Star map is one of the first known graphical representations of stars from ancient Chinese astronomy, dated to the Tang dynasty (618–907). Before this map, much of the star information mentioned in historical Chinese texts had been questioned. [2]
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