4 papers
On the Orbit of Visual Binary WDS 01158-6853 I-27CD (SAO248342)
S. Siregar
WDS 01158-6853 I-27CD=SA0 248342 has the proper motion +404. in right ascension and 105. in declination. Magnitude of each star is 7.84 for primary and 8.44 for secondary, separate…
On Near-Earth Asteroid Study at Department of Astronomy, Bandung Institute of Technology
S. Siregar
Since1984 asteroid study is conducted at Department of Astronomy, Bandung Institute of Technology. At present there are two main streams in our research, dynamical and physical stu…
On the Orbit of Visual Binary ADS 8119 AB (α = 11h18m10s.9 and δ=+31o31'44".9)
S. Siregar, D. Hadi Nugroho
Xi UrsaMajoris (ξ Uma) historically is one of the most important double star inconstellation Ursa Major, found by Sir William Herschel on May, 2, 1780 and the first binary successf…
Observations of Extrasolar Planet Transit at the Bosscha Observatory
R. Satyaningsih, B. dermawan, T. Hidayat +3
Since its first discovery, most extrasolar planets were detected using radial velocity (RV) method. However, the RV method does not provide all parameters required to characterize…