Results 1 to 10 of about 14,330 (107)

A Large and Precise All-Sky Photometric Standard Star Dataset Across More Than 200 Passbands [PDF]

open access: yesScientific Data
High-precision photometric standard stars play a key role in enabling accurate photometric calibration and advancing various fields of astronomy. However, due to limitations in calibration methods and the limited availability and underuse of high ...
Kai Xiao   +14 more
doaj   +2 more sources

Astronomy Lab I: Photometric Experiments for Physics Students [PDF]

open access: yesIranian 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
doaj   +1 more source

Determining the pseudo magnitude of the o Oph A star using Iris 5.59 software observed from the Astronomy Laboratory, Department of Physics, Faculty of Mathematics and Natural Science, State University of Malang [PDF]

open access: yesAIP Conference Proceedings, 2021
o Oph A star is a star in the Ophiuchus star cluster. o Oph A stands for omicron Ophiuchi A. Ophiuchus is a zodiac between Scorpio and Sagittarius in the current era, the 9th zodiac is calculated sequentially from Aries and finally, the 13th is Pisces. A magnitude scale is a unit for measuring the brightness of a star.
S. Sutrisno   +2 more
openaire   +1 more source

MOOCS and 100 Days of COVID: Enrollment surges in massive open online astronomy classes during the coronavirus pandemic

open access: yesSocial Sciences and Humanities Open, 2021
One side-effect of the COVID-19 pandemic has been increased enrollment in online classes. The paper explores the surge in activity from March through June 2020 in two massive open online classes (MOOCs) on Astronomy, offered by Coursera and Udemy.
Chris Impey, Martin Formanek
doaj   +1 more source

THE SLOPE OF ΔM LIGHT CURVE DEPENDING UPON THE ITS LOCATION IN CCD FRAME [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
BV observations for V523 Cas were performed with 1.8m telescope and 2K CCD camera at Bohyunsan Optical Astronomy Observatory, Korea, on October 27, 1999. ∆m light curves for 11 comparison objects were made.
J. H. Jeong, I. S. Yim
doaj   +1 more source

Magnitude Standardization Procedure for OWL-Net Optical Observations of LEO Satellites [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2015
As a governmentally approved domestic entity for Space Situational Awareness, Korea Astronomy and Space Science Institute (KASI) is developing and operating an optical telescopes system, Optical Wide-field PatroL (OWL) Network. During the test phase of
Dong-Goo Roh   +12 more
doaj   +1 more source

Astrometry of directly imaged exoplanets with optical interferometry

open access: yesComptes Rendus. Physique, 2023
Optical interferometry has always been seen as a promising but difficult technique for astronomy. Until the year 2018, it was excrucially limited in sensitivity to magnitudes below 10.
Lacour, Sylvestre
doaj   +1 more source

ALGORITHM OF DETECTION SPATIO-TEMPORAL NOISE-LIKE SIGNAL WITH THE UNKNOWN PARAMETERS WITH MANY-CHANNEL RECEPTION

open access: yesРадіоелектронні і комп'ютерні системи, 2017
Considered characteristic task for radio astronomy, detection spatio-temporal noise-like signal emitted by extended radiation source, observations of which are conducted in a parametrically uncertain noise conditions.
Александр Дмитриевич Абрамов   +1 more
doaj   +1 more source

Design of a Ultra-Stable Low-Noise Space Camera Based on a Large Target CMOS Detector and Image Data Analysis

open access: yesSensors, 2022
To detect faint target stars of 22nd magnitude and above, an astronomical exploration project requires its space camera’s readout noise to be less than 5e− with long-time working stability. Due to the limitation of satellite, the traditional CCD detector-
Chao Shen, Caiwen Ma, Wei Gao
doaj   +1 more source

Domesticating Light: Standards and Artisanal Knowledge in Early Astrophysics

open access: yesHoST, 2020
Astrophysics was born in the nineteenth century as a “New Astronomy” (in the words of Samuel Langley, 1884), a knowledge built primarily by amateurs who explored deep space by studying the Sun, stars and nebulae.
Ordóñez Javier
doaj   +1 more source

Home - About - Disclaimer - Privacy