NAUTICAL ASTRONOMICAL YEARBOOK for 2007 (in Russian)

Foreword

According to the resolutions of XXIV General Assembly of International Astronomical Union (Manchester, 2000) the computing of ephemerides is based on the modern theory of celestial bodies motion what provides an accuracy sufficient for analytical researches and practical applications.

The DE405/LE405 numerical theory of movement of the Sun, the Moon, and major planets is used in хNautical Astronomical Yearbookж, in which coordinates and speeds of objects are gave as the polynoms by Tchebyshev. In NAY the positions of stars are published in the system of fundamental catalogue FK6 and stellar catalogue HIPPARCOS.

NAY is published with modifications advised by the meeting of the represents of HDNO MDRF, SN&HRI MDRF, M.V.Frunze HNA, S.O.Makarov SMA, NASOC and IAA RAS (1999) in St.-Petersburg and confirmed by the resolution of the Russian astronomical conference (RAC-2001) in St.-Petersburg.

The ephemerides (visual geocentrical equatorial coordinates) of brightest navigational stars – the Sun, the Moon, four major planets (Venus, Mars, Jupiter, Saturn) and of the 160 stars are published in NAY. The basis of the NAY is the daily tables of the Sun, the Moon, four major planets, and 69 brightest navigational stars, and the time of the rising and setting of the Sun and the Moon, the time of the beginning and the end of civil and navigational twilights, the azimuths of the upper limb of the Sun on rising and setting. These ephemerides and the tables of Polaris, the interpolational tables, the modified tables of altitudes and azimuths of stars TAA-52, and a number of auxiliary tables allow to solve any navigatoval task by methods of classical naval astronomy without additional manuals.

The responsible for the calculation of ephemeris data for NAY on 2007 are the following researchers of Laboratory of astronomical yearbooks IAA RAS:

The explanation for NAY 2007 is revized by V.N.Kostin, M.V.Lukashova, M.L.Sveshnikov. Presentation of charts of the sky of stars in PS-format for the stars in the system of the Fundamental Catalog FK6 and stellar catalog HIPPARCOS on epoch J2010.0 is made by M.L.Sveshnikov.

Examples for NAY 2007 are calculated by M.V.Lukashova, M.L.Sveshnikov.

M.V.Lukashova and M.L.Sveshnikov have made the original of the Explanation with TEX-system. Editing version of the tables has been made by G.A.Netsvetaeva using “Systems of Making-up of Tabulated Editions SVITA”.

The proof-reading of a data is made by I.A.Lebedeva, N.K.Omel'yanchuk.

A.M.Finkelshtein
Director of IAA RAS
Contents

page
Foreword 4
Explanation for the Nautical Astronomical Yearbook 5
Same astronomical phenomena in Solar System in 2007 23
Visibility of planets in 2007 24
Daily tables 25
Stars. Apparent places on 2007 270
Azimuth of Polaris in 2007 276
Determination of latitude by altitude of Polaris in 2007 277
Corrections to azimuth of apparent solar upper limb at sunrise and sunset
     A. Definition of argument K from date and latitude 280
     B. Definition of ΔA from K and Δh 280
Appendices
1. Corrections to the time of sunrise and sunset, rising and setting of the Moon, twilight and the culminations of stars:

1.A. Correction for latitude 281

1.B. Correction for longitude 282
2. Tables for correction of the observed altitudes of stars 283
3. Conversion of arc to time 288
4. The tables of increments and corrections 289
5. The index of stars 320
6. Tables for calculation of altitudes and azimuths (TAA-52) 321
7. Charts of the sky of stars (supplementary sheet)