Modern programs of meridian and photographic observations

Modern programs of meridian and photographic observations

There are 44 active meridian instruments in the world ( 5 great transit instruments, 6 vertical circles, 33 meridian circles), including 8 in the Southern Hemisphere and 16 in the USSR. 10 instruments are new ones - less than 12 years old. We have also more then 20 widefield astrographs which are su...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:International Astronomical Union Colloquium 1978-09, Vol.48, p.503-504
Hauptverfasser: Duma, D. P., Polozhentsev, D. D., Potter, H. I., Tavastsherna, K. N.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:There are 44 active meridian instruments in the world ( 5 great transit instruments, 6 vertical circles, 33 meridian circles), including 8 in the Southern Hemisphere and 16 in the USSR. 10 instruments are new ones - less than 12 years old. We have also more then 20 widefield astrographs which are suitable for catalogue work. There are another 100 astrometric instruments (Danjon Astrolabe, ZT, Time Service TI, PZT and so on) which are used for catalogue purposes.
ISSN:0252-9211
DOI:10.1017/S0252921100074510