U.S. Naval Observatory, Nautical Almanac Office; H.M. Nautical Almanac Office (1961). Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac. H.M. Stationery Office, London., sec. 2A
U.S. Naval Observatory, Nautical Almanac Office (1992). P. Kenneth Seidelmann (บ.ก.). Explanatory Supplement to the Astronomical Almanac. University Science Books, Mill Valley, CA. ISBN0-935702-68-7., section 11.43
Montenbruck, Oliver; Pfleger, Thomas (2000). Astronomy on the Personal Computer. Springer-Verlag Berlin Heidelberg. ISBN978-3-540-67221-0.,pp 35-37
U.S. Naval Observatory, Nautical Almanac Office; U.K. Hydrographic Office, H.M. Nautical Almanac Office (2008). The Astronomical Almanac for the Year 2010. U.S. Govt. Printing Office. p. M18. ISBN978-0160820083.
Depending on the azimuth convention in use, the signs of cosA and sinA appear in all four different combinations. Karttunen et al., Taff and Roth define A clockwise from the south. Lang defines it north through east, Smart north through west. Meeus (1991), p. 89: sin δ = sin φ sin a − cos φ cos a cos A; Explanatory Supplement (1961), p. 26: sin δ = sin a sin φ + cos a cos A cos φ.
NOVAS, the U.S. Naval Observatory's Vector Astrometry Software, an integrated package of subroutines and functions for computing various commonly needed quantities in positional astronomy.
SOFA, the IAU's Standards of Fundamental Astronomy, an accessible and authoritative set of algorithms and procedures that implement standard models used in fundamental astronomy.
This article was originally based on Jason Harris' Astroinfo, which comes along with KStars, a KDE Desktop Planetarium for Linux/KDE.
สิงหาคม 03, 2021
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cudcxmfarayathangmumiklphrxmwngklmihycaksudyxdipwtthuthxngfa epnephiyngmumprakxbkhxngradbkhwamsung 90 a 6 tan A sin h cos h sin ϕ o tan d cos ϕ o cos a sin A cos d sin h cos a cos A cos d cos h sin ϕ o sin d cos ϕ o displaystyle tan A sin h over cos h sin phi o tan delta cos phi o qquad qquad begin cases cos a sin A cos delta sin h cos a cos A cos delta cos h sin phi o sin delta cos phi o end cases sin a sin ϕ o sin d cos ϕ o cos d cos h displaystyle sin a sin phi o sin delta cos phi o cos delta cos h cos a cos A cos a sin A sin a sin ϕ o 0 cos ϕ o 0 1 0 cos ϕ o 0 sin ϕ o cos d cos h cos d sin h sin d displaystyle begin bmatrix cos a cos A cos a sin A sin a end bmatrix begin bmatrix sin phi o amp 0 amp cos phi o 0 amp 1 amp 0 cos phi o amp 0 amp sin phi o end bmatrix begin bmatrix cos delta cos h cos delta sin h sin delta end bmatrix tan h sin A cos A sin ϕ o tan a cos ϕ o cos d sin h cos a sin A cos d cos h sin a cos ϕ o cos a cos A sin ϕ o displaystyle tan h sin A over cos A sin phi o tan a cos phi o qquad qquad begin cases cos delta sin h cos a sin A cos delta cos h sin a cos phi o cos a cos A sin phi o end cases sin d sin ϕ o sin a cos ϕ o cos a cos A displaystyle sin delta sin phi o sin a cos phi o cos a cos A 7 cos d cos h cos d sin h sin d sin ϕ o 0 cos ϕ o 0 1 0 cos ϕ o 0 sin ϕ o cos a cos A cos a sin A sin a displaystyle begin bmatrix cos delta cos h cos delta sin h sin delta end bmatrix begin bmatrix sin phi o amp 0 amp cos phi o 0 amp 1 amp 0 cos phi o amp 0 amp sin phi o end bmatrix begin bmatrix cos a cos A cos a sin A sin a end bmatrix rabbphikdsunysutr rabbphikddarackr aekikh smkarehlaniichsahrbkaraeplngphikdaethbesnsunysutreriykwa B1950 0 thaphikdaethbesnsunysutrcaeriykipyngxikwisuwt phwkekhacatxngipthiphthnatxenuxngthi B1950 0 kxnthicaichsutrehlani l 303 arctan sin 192 25 a cos 192 25 a sin 27 4 tan d cos 27 4 displaystyle l 303 circ arctan left sin 192 circ 25 alpha over cos 192 circ 25 alpha sin 27 circ 4 tan delta cos 27 circ 4 right sin b sin d sin 27 4 cos d cos 27 4 cos 192 25 a displaystyle sin b sin delta sin 27 circ 4 cos delta cos 27 circ 4 cos 192 circ 25 alpha These equations convert to equatorial coordinates referred to B1950 0 a arctan sin l 123 cos l 123 sin 27 4 tan b cos 27 4 12 25 displaystyle alpha arctan left sin l 123 circ over cos l 123 circ sin 27 circ 4 tan b cos 27 circ 4 right 12 circ 25 sin d sin b sin 27 4 cos b cos 27 4 cos l 123 displaystyle sin delta sin b sin 27 circ 4 cos b cos 27 circ 4 cos l 123 circ duephim aekikhmumthis thrngklmfa xngkhprakxbkhxngwngokhcr rabbphikdthrngklmxangxing aekikh Majewski Steve Coordinate Systems UVa Department of Astronomy subkhnemux 19 March 2011 Meeus Jean 1991 Astronomical Algorithms Willmann Bell Inc Richmond VA ISBN 0 943396 35 2 chap 12 U S Naval Observatory Nautical Almanac Office H M Nautical Almanac Office 1961 Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac H M Stationery Office London sec 2A U S Naval Observatory Nautical Almanac Office 1992 P Kenneth Seidelmann b k Explanatory Supplement to the Astronomical Almanac University Science Books Mill Valley CA ISBN 0 935702 68 7 section 11 43 Montenbruck Oliver Pfleger Thomas 2000 Astronomy on the Personal Computer Springer Verlag Berlin Heidelberg ISBN 978 3 540 67221 0 pp 35 37 U S Naval Observatory Nautical Almanac Office U K Hydrographic Office H M Nautical Almanac Office 2008 The Astronomical Almanac for the Year 2010 U S Govt Printing Office p M18 ISBN 978 0160820083 Depending on the azimuth convention in use the signs of cosA and sinA appear in all four different combinations Karttunen et al Taff and Roth define A clockwise from the south Lang defines it north through east Smart north through west Meeus 1991 p 89 sin d sin f sin a cos f cos a cos A Explanatory Supplement 1961 p 26 sin d sin a sin f cos a cos A cos f aehlngkhxmulxun aekikhkhxmmxns miphaphaelasuxekiywkb rabbphikdthrngklmfaNOVAS the U S Naval Observatory s Vector Astrometry Software an integrated package of subroutines and functions for computing various commonly needed quantities in positional astronomy SOFA the IAU s Standards of Fundamental Astronomy an accessible and authoritative set of algorithms and procedures that implement standard models used in fundamental astronomy This article was originally based on Jason Harris Astroinfo which comes along with KStars a KDE Desktop Planetarium for Linux KDE ekhathungcak https th wikipedia org w index php title rabbphikdthrngklmfa amp oldid 9423690, wikipedia, วิกิ หนังสือ, หนังสือ, ห้องสมุด,
