Results 1 to 10 of about 300,539 (158)

Scales and orders of magnitude in Astronomy [PDF]

open access: goldProceedings of 2nd MCCT-SKADS Training School. Radio Astronomy: fundamentals and the new instruments — PoS(2nd MCCT-SKADS), 2009
J. Alcolea
exaly   +3 more sources

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: bronzeAIP 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   +2 more sources

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

An inverse method to interpret colour-magnitude diagrams [PDF]

open access: yesAstronomy and Astrophysics, 2002
An inverse method is developed to determine the star formation history, the age-metallicity relation, and the IMF slope from a colour-magnitude diagram. The method is applied to the Hipparcos HR diagram.
J Köppen, Daniel Egret, O Bienaymé
exaly   +3 more sources

Reports on the Progress of Astronomy Standard Magnitudes [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 1954
A. W. J. Cousins, R. H. Stoy
openaire   +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

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

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