Results 11 to 20 of about 128,880 (312)
Compact Optical Visual Magnification System with a Wide Field of View [PDF]
SensorsA new concept for designing a visual magnification system is introduced. In this concept, apart from the conventional objective and the eyepiece group lenses in the system, an additional Power-Corrector (PC) group of lenses is introduced in the optical ...
Uri Milman, Jacob Kaufmann, Yoel Arieli
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An Overview of Some Latest Development in Chinese Astronomy [PDF]
Anais da Academia Brasileira de Ciências, 2021 We present brief highlights and updates on some newer projects, both in operation/construction and in preparation stages, of astronomical research on Mainland China, with an emphasis on those involving international collaborations.
ZHONG WANG, YANCHUN LIANG
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Astronomy Lab I: Photometric Experiments for Physics Students [PDF]
Iranian Journal of Astronomy and Astrophysics, 2023 As physics laboratories are an integral part of the physics education across the globe, astronomy laboratories are also a necessary part of the astronomy education.
Reza Rezaei
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Solar-Terrestrial Physics, 2023 The Yakutsk spectrograph of cosmic rays includes a complex of muon telescopes based on gas-discharge and scintillation counters located on the surface and under the ground at depths of 7, 20, and 40 m.w.e.
Yanchukovsky V. L.
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The First Telescope in the Korean History I. Translation of Jeong`s Report [PDF]
Journal of Astronomy and Space Sciences, 2009 In 1631 A.D. Jeong Duwon, an ambassador of the Joseon dynasty was sent to the Ming dynasty. There he met João Rodrigues, a Jesuit missionary, in Dengzhou of Shandong peninsula.
Sang-Hyeon Ahn
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Atmosphere, 2021 Knowledge of the turbulence spectra is of interest for describing atmospheric conditions as applied to astronomical observations. This article discusses the deformations of the turbulence spectra with heights in a wide range of scales at the sites of the
Artem Yu. Shikhovtsev +5 more
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Broadband multi-wavelength properties of M87 during the 2017 Event Horizon Telescope campaign [PDF]
, 2021 In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are consistent with theoretical expectations for a weakly accreting ...
The Event Horizon Telescope Collaboration
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CTAO Instrument Response Functions - prod5 version v0.1 [PDF]
, 2021 CTAO Instrument Response Functions - prod5 version v0.1 The CTA Observatory (CTAO) will provide very wide energy range and excellent angular resolution and sensitivity in comparison to any existing gamma-ray detector.
Consortium, Cherenkov Telescope Array
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Baccio del Bianco and the artistic fortuna of Galileo’s Il Saggiatore
Galilæana, 2023 This contribution takes into consideration Galileo’s Il Saggiatore as an overlooked source for the arts in Florence during the first part of the seventeenth century.
Eva Struhal
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Estimation of Astronomical Seeing with Neural Networks at the Maidanak Observatory
Atmosphere, 2023 In the present article, we study the possibilities of machine learning for the estimation of seeing at the Maidanak Astronomical Observatory (38∘40′24″ N, 66∘53′47″ E) using only Era-5 reanalysis data.
Artem Y. Shikhovtsev +6 more
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