冷漠 发表于 2025-3-26 22:40:42

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CAMP 发表于 2025-3-27 03:28:57

On the Use of Statistical Parallaxes for the Proper Motion Reductionseclination. The proper motions and reductions with use of galaxies were derived for all areas. The errors of reductions are equal to ± 0..006. In addition the statistical reductions R., R. were computed for the control and for the zones of avoidance. The following formulae were used: . where . is th

MENT 发表于 2025-3-27 07:22:37

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Tonometry 发表于 2025-3-27 13:19:52

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晚间 发表于 2025-3-27 16:26:21

Complex Geodynamical Investigations in the Area of the USSR Academy of Sciences Central Astronomical is based on the Fundamental Star Catalogue FK5 together with local coordinate systems in observation stations on the Earth’s surface which are intrinsically connected with the geometry of the gravitation field.

Devastate 发表于 2025-3-27 19:49:16

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和音 发表于 2025-3-28 01:08:39

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animated 发表于 2025-3-28 02:26:04

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枫树 发表于 2025-3-28 07:56:46

On the Programme of Ground-Based Observations of Bright Selected Minor Planets for 1991–2000The programme of observations of 10 bright minor planets for 1991–2000 is proposed. One of the main aims of the programme is the determination of the orientation parameters and the systematic errors of star catalogues.

桉树 发表于 2025-3-28 12:46:22

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查看完整版本: Titlebook: Inertial Coordinate System on the Sky; Proceedings of the 1 Jay H. Lieske,Victor K. Abalakin Conference proceedings 1990 International Astr