Project management of DAG: Eastern Anatolia Observatory

The four meter DAG (Eastern Anatolia Observatory in Turkish) telescope is not only the largest telescope in Turkey but also the most promising telescope in the northern hemisphere with a large potential to offer scientific observations with its cutting edge technology. DAG is designed to be an AO telescope which will allow both infrared and visible observations with its two Nasmyth platforms dedicated to next generation focal plane instruments. In this paper, status updates from DAG telescope will be presented in terms of; (i) in house optical design of DAG, (ii) tender process of telescope, (iii) tender process of enclosure, and (iv) tender process of the observatory building. Also status updates from the focal plane instruments project and possible collaboration activities will be presented.Publisher's Versio

İstabul Üniversitesi gözlemevi odak düzlemi aygıtı test ve karakterizasyon laboratuvarı

Doğu Anadolu Gözlemevi Odak Düzlemi Aygıtları ve Adaptif Optik Sistemi başlıklı, 2016K121370 numaralı T.C. Kalkınma Bakanlığı projesi ve İstanbul Üniversitesi Rektörlüğü desteğinde yürüyen çalışmalar kapsamında İstanbul Üniversitesi Astronomi ve Uzay Bilimleri Bölümü’nde teleskop odak düzlemi aygıtı test ve karakterizasyon laboratuvarı kurulum çalışmaları başlatılmıştır. Başta DAG Teleskobu olmak üzere ülkemizdeki tüm gözlemevlerine hizmet verebilecek şekilde tasarlanan laboratuvar, CCD kamera, filtre ve odak düzlemi aygıtları için bir test masasına sahip olacaktır. Bu sunumda, laboratuvarın kurulumu ve alımlarında gelinen son noktanın yanı sıra, İstanbul Üniversitesi Fizik Bölümü Nano-Optoelektronik Araştırma Laboratuvarları ile birlikte yapılması planlanan çalışmalar sunulacaktır.Publisher's Versio

Satellite Constellations as an Issue in Space Law

Satellite constellations constitute significant threat to ground-based optical astronomy as well as radio astronomy.Thousands of satellites are planned to be placed in low-Earth orbit (LEO), and several hundreds of them are plannedfor higher orbits such as MEO. International astronomical community has been discussing the issue with its alldimensions; need for proper regulations, national space policies, and international agreements. This contributionis intended to define the issue and its impact on astronomical observations

Development of Astronomy in Turkey

An overview of the historical developments related to astronomy in Turkey is presented. Developments in the Republican Period (since 1923) of Turkey are given; the first institute of astronomy was established in 1933. Recent developments and ongoing projects are also summarized. By 2020, it is expected that the two largest telescopes in Turkey will be 4 m and 2.5 m

Dark and Quiet Skies II Working Group Reports

This Report presents the main results of the Conference Dark and Quiet Skies for Science and Society II which took place on-line on 3-7 October 2021. This conference was the logical follow-up of the first one, organized as an on-line workshop with the same title on 5-9 October 2020. Both conferences were co-organized by UNOOSA, IAU and the Government of Spain and were well attended. The focus of the second conference was about the feasibility of implementing the recommendations presented by the first on in its extensive report. The main qualifying difference between the first and second conferences was a more explicit involvement of the industrial stakeholders and of space policy experts, whose contributions were instrumental in presenting a credible review of the proposed mitigating measures as well as of possible regulatory guidelines.As better explained in the report, the main findings of the conference are also being presented to the 59th Session of the Scientific and Technical Sub Committee (STSC) of COPUOS in the form of a Working Paper