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Song, I-Yeong (1619 ~ ?), a mid-Joseon astronomer, was active in the era of the introduction of Shixian-li. His activity..

???| 2025.05.27| 14???| ?? | ??(0)

armillary clock, Song I-Yeong(��e), comet ..

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The armillary sphere, an astronomical observation device embodying the Orbital Heaven Theory of the Later Han Dynasty in..

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General: history and philosophy of astro..

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Since interstellar objects like 1I/`Oumuamua and 2I/Borisov originate from exoplanetary systems, evenif we do not visit ..

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Astrobiology, astrophysics : interstellar..

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??? ????? ??? ??? ?? ?? ???? ??? ?? (HOW MODEL VARIANCE IN HIGH-REDSHIFT STAR FORMATION SHAPES COSMIC REIONIZATION HISTO..

We present a semi-analytical method to calculate the global evolution of the ionized state of the intergalactic medium, ..

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cosmology: dark ages, reionization, ?rst s..

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???| 2025.05.19| 13???| ?? | ??(7)

data, astronomical science museum, Chilgap..

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A STUDY ON THE RELIABILITY OF THE DAEJEON HARDWARE CORRELATOR FOR THE KVN OBSERVATION MODES (A STUDY ON THE RELIABILITY ..

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???| 2025.05.10| 17???| ?? | ??(3)

VARIABILITY, Active Galactic Nucleus (AGN..

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???| 2025.05.10| 14???| ?? | ??(3)

solar term, Lunisolar calendar in Korea, P..

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???| 2025.05.09| 16???| ?? | ??(2)

history of astronomy, star chart, Archeoas..

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