Results 1 to 10 of about 900 (131)
Astronomical Seeing at Maidanak Observatory during the Year 2018 [PDF]
Galaxies, 2021 Results of a four-month campaign of astronomical seeing measurements at Maidanak astronomical observatory (MAO) are presented. A differential image motion monitor (DIMM) was used for seeing estimations during the period from August to November 2018.
Yusufjon Tillayev +2 more
doaj +5 more sources
Investigation of the Global Spatio-Temporal Characteristics of Astronomical Seeing
Remote Sensing, 2023 Astronomical seeing is important for monitoring the atmospheric environment, observation scheduling and management, and selecting astronomical sites.
Cuicui Bi +5 more
doaj +5 more sources
Astronomical Seeing and Meteorological Parameters at Maidanak Observatory
Atmosphere, 2023 In this article, we present the results of astronomical seeing measurements conducted at the Maidanak observatory and the influence of meteorological parameters on astronomical seeing.
Yusufjon Tillayev +3 more
doaj +4 more sources
UBVRI night sky brightness at Kottamia Astronomical Observatory [PDF]
Scientific Reports, 2023 Photoelectric observations of night sky brightness (NSB) at different zenith distances and azimuths, covering all the sky, at the Egyptian Kottamia Astronomical observatory (KAO) site of coordinates ϕ = 29° 55.9′ N and λ = 31° 49.5′ E, were done using a ...
Mohamed F. Aboushelib +4 more
doaj +2 more sources
Model for estimating the astronomical seeing at Dome A, Antarctica
Optics Express, 2021 A model for estimating astronomical seeing at Kunlun Station (Dome A, Antarctica) is proposed. This model is based on the Tatarskii equation, using the wind shear and temperature gradient as inputs, and a seeing model depending directly on the weather data is provided.
Qike Yang, Chun Qing
exaly +3 more sources
Night-time measurements of astronomical seeing at Dome A in Antarctica [PDF]
Nature, 2020 Seeing, the angular size of stellar images blurred by atmospheric turbulence, is a critical parameter used to assess the quality of astronomical sites. Median values at the best mid-latitude sites are generally in the range of 0.6--0.8\,arcsec. Sites on the Antarctic plateau are characterized by comparatively-weak turbulence in the free-atmosphere ...
Bin Ma, Zhaohui Shang, Paul Hickson
exaly +4 more sources
Patterns of Astronomical Seeing at KSA SEM Observatory
Journal of the Korean Earth Science Society, 2009 We report patterns of astronomical seeing at KSA SEMO (Korea Science Academy Space Earth and Man Observatory). Though the data of the seeing measured at the local observatory is essential in identifying the seeing of the observatory, systematic measurement of seeing has not been made in Pusan yet.
Im-Seok Kang, Kyung-Hoon Lee
exaly +3 more sources
Surface Layer Turbulence at the Maidanak Observatory
Atmosphere, 2023 Results of night-time surface layer turbulence measurements using ESO LuSci at the Maidanak observatory are presented. Turbulence in the surface layer was evaluated at the Maidanak observatory using LuSci during the period of 2021–2022.
Azimjon Azimov +5 more
doaj +1 more source
Discovery of Calm Astronomical Sites Over the Antarctic Continent
The Astronomical Journal, 2023 A calm astronomical site means a site where astronomical observation would be less likely to be interfered with by optical turbulence. Previous turbulence measurements at a few sites in Antarctica have demonstrated very calm atmospheric conditions here ...
Qike Yang +12 more
doaj +1 more source
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
doaj +1 more source