Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Jang Hae Jeong"'
Autor:
Joh-Na Yoon, Yong Sam Lee, Chun-Hwey Kim, Yonggi Kim, Hong-Suh Yim, Wonyong Han, Jang Hae Jeong
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 29, Iss 4, Pp 397-405 (2012)
Astronomical Observations at Chungbuk National University Observatory (CBNUO) with an 1 m telescope have begun since April 2008, and Near-Earth Space Survey observations also have been started since November 2010, with a 0.6 m wide field telescope de
Externí odkaz:
https://doaj.org/article/8754c49447144d25aeb0a0aa5da4a047
Autor:
Chun-Hwey Kim, Jang Hae Jeong
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 29, Iss 2, Pp 151-161 (2012)
An intensive analysis of 148 timings of V700 Cyg was performed, including our new timings and 59 timings calculated from the super wide angle search for planets (SWASP) observations, and the dynamical evidence of the W UMa W subtype binary was examin
Externí odkaz:
https://doaj.org/article/58a0974b27fa4968ae00c8d96671db2e
Autor:
Jang Hae Jeong, Chun-Hwey Kim
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 28, Iss 3, Pp 163-172 (2011)
An intensive analysis of 185 timings of WZ Cep, including our new three timings, was made to understand the dynamical picture of this active W UMa-type binary. It was found that the orbital period of the system has complexly varied in two cyclical
Externí odkaz:
https://doaj.org/article/ff59141ea536448f94e04ca0f5a7e53a
Autor:
Chun-Hwey Kim, Jang Hae Jeong
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 28, Iss 2, Pp 109-116 (2011)
The first presented BV light curves of BH UMa confirmed Krajci’s (2005) result that BH UMa is an RR Lyr star that belongs to the RRc subgroup. The light curves showed a slight asymmetry of D = 0.453 with an amplitude of about 0.m58 in B, 0.m47 in
Externí odkaz:
https://doaj.org/article/d2085cf238b841bea6843058a3226c23
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 4, Pp 383-392 (2010)
Armillary sphere, generally known as, not only astronomical instrument for observing astronomical phenomena but also symbolizes the royal authority and royal political ideology which is based on Confucianism. Among the well-reputed Confucian schola
Externí odkaz:
https://doaj.org/article/6bebcf800b8d4afb9080eb6f3fe529fd
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 2, Pp 81-88 (2010)
A total of 583 observations (193 in Δb, 190 in Δv, 200 in Δr) for V523 Cas was made on 9 nights from September to December in 2008 using the 100 cm telescope with 2K CCD camera of the Chungbuk National University Observatory. With our data BVR l
Externí odkaz:
https://doaj.org/article/423f6875effa401e9278e259ec0f5841
Autor:
Chun-Hwey Kim, Mi Hwa Song, Joh-Na Yoon, Jang Hae Jeong, Taek-Soo Jeoung, Young-Jae Kim, Jung Yeb Kim
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 2, Pp 89-96 (2010)
BVR CCD observations of GW Cep were made on 15 nights in November through December 2008 with a 1-m reflector at the Jincheon station of the Chungbuk National University Observatory. Nineteen new times of minimum lights for GW Cep were determined an
Externí odkaz:
https://doaj.org/article/8fd25eb87fad4cc6b2f3a26de8c7e8bd
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 26, Iss 3, Pp 355-374 (2009)
We analysed the old automatic clock and time signal system that was used by the national astronomical agency in East Asian Area. Jagyeongnu is a kind of water clock that was operated by the flowing water in Joseon Dynasty. Seowoongwan managed the wat
Externí odkaz:
https://doaj.org/article/baaeb9ae7a164c2b8aae18f6fd32197e
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 25, Iss 3, Pp 299-320 (2008)
We study on the astronomical calendars that was used in the Silla era. The calendars are deduced from the records in Samguksagi. They were influenced from calendaric system of Tang Dynasty, which are Lin duk calendar(?), Ta yen calendar(?) and Sun my
Externí odkaz:
https://doaj.org/article/278ac8f3ccaf4d3d8ae0f490dce96315
Autor:
Chun-Hwey Kim, Sang-Mok Cha, Young-Jae Choi, Mi-Hwa Song, Jang-Ho Park, Jang-Hee Won, Jin-Sun Yim, Myung-Shin Cho, Eun-Mi Park, Jang Hae Jeong
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 25, Iss 2, Pp 101-112 (2008)
Systematic CCD observations of times of minimum lights for eclipsing binaries has been carried out from 2002 to 2007 at Campus Station of Chungbuk National University Observatory which is located in Cheongju city, Korea. As a by-product of our observ
Externí odkaz:
https://doaj.org/article/2e0f38f55afe4b099b0f498daca81bc1