Results 1 to 10 of about 12,372 (117)

A Reverse-Design Strategy for the Track Error of the Qi Tai Telescope Based on Pointing Accuracy

open access: yesEngineering, 2022
The Qi Tai Telescope (QTT), which has a 110 m aperture, is planned to be the largest scale steerable telescope in the world. Ideally, the telescope’s repeated pointing accuracy error should be less than 2.5 arc seconds (arcsec); thus, the telescope ...
Baoyan Duan, Xiang-Yang Li
exaly   +3 more sources

Design and Preliminary Ground Experiment for Deployable Sunshade Structures of a Modular Space Telescope

open access: yesSensors
On-orbit assembling space telescope (OAST) is one of the most feasible methods to implement a large-scale space telescope. Unlike a monolithic space telescope (such as Hubble Space Telescope, HST) or a deployable space telescope (such as James Webb Space
Ye Kuang, Boqian Xu
exaly   +3 more sources

StarWhisper Telescope: an AI framework for automating end-to-end astronomical observations [PDF]

open access: yesCommunications Engineering
The exponential growth of large-scale telescope arrays has boosted time-domain astronomy development but introduced operational bottlenecks, including labor-intensive observation planning, data processing, and real-time decision-making.
Cunshi Wang   +33 more
doaj   +2 more sources

Lunar-like silicate material forms the Earth quasi-satellite (469219) 2016 HO3 Kamoʻoalewa

open access: yesCommunications Earth & Environment, 2021
The Earth’s most stable quasi-satellite, Kamoʻoalewa, displays an extremely red reflectance spectrum typical of space weathering of lunar-like silicate material which raises the possibility that it is formed of material originating from the ...
Benjamin N. L. Sharkey   +9 more
doaj   +1 more source

Modeling of hydraulic support system for large structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the control of a large structure, hydraulic equipment is often used because it requires a large output. In this study, we focus on the telescope as an example of a large structure, and model its hydraulic support system and analyze its characteristics
Tomoya HATTORI   +5 more
doaj   +1 more source

Experimental validation of hydraulic support system for large structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the control of a large structure, hydraulic equipment is often used because it requires a large output. In this study, we focus on a telescope as an example of a large structure, and experimentally verify the basic characteristics of the hydraulic ...
Tomoya HATTORI   +7 more
doaj   +1 more source

Io’s Optical Aurorae in Jupiter’s Shadow

open access: yesThe Planetary Science Journal, 2023
Decline and recovery timescales surrounding eclipse are indicative of the controlling physical processes in Io’s atmosphere. Recent studies have established that the majority of Io’s molecular atmosphere, SO _2 and SO, condenses during its passage ...
Carl Schmidt   +15 more
doaj   +1 more source

A 36 cm robotic optical telescope: Equipment and software

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The paper describes an optical telescope system and control software for robotic observation of space debris. The telescope has a main aperture of 355 mm, adopts the optical design scheme of primary focus with a large field of view, and is equipped with ...
Jian Sun   +9 more
doaj   +1 more source

Observing CVs and LMXBs with SALT: Updates and Recent Results

open access: yesActa Polytechnica CTU Proceedings, 2015
I present an overview of the ongoing observational programs utilizing the Southern African Large Telescope (SALT), focussing on magnetic Cataclysmic Variables and Low Mass X-ray Binaries.
David A. H. Buckley
doaj   +1 more source

Photonics Large-Survey Telescope Internal Motion Metrology System

open access: yesPhotonics, 2023
Large survey telescopes are vital for mapping dark energy and dark matter in the deep universe. This study presents a fiber-linked internal motion metrology system that aligns the mirrors and large lenses in the telescopes to enhance alignment accuracy ...
Qichang An   +5 more
doaj   +1 more source

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