Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
권호 표지
DOI QR코드

DOI QR Code

CCD Photometry of the Asteroid 55 Pandora

소행성 55 Pandoro의 CCD 측광 연구

  • Kwon, Sun-Gill (Department of Earth Science Education, Korea National University of Education) ;
  • Kim, Seung-Lee (Korea Astronomy and Space Science Institute) ;
  • Lee, Ho (Department of Earth Science Education, Korea National University of Education) ;
  • Jeon, Young-Beom (Korea Astronomy and Space Science Institute) ;
  • Park, Hong-Suh (Department of Earth Science Education, Korea National University of Education)
  • 권순길 (한국교원대학교 제3대학 지구과학교육과) ;
  • 김승리 (한국천문연구원) ;
  • 이호 (한국교원대학교 제3대학 지구과학교육과) ;
  • 전영범 (한국천문연구원) ;
  • 박홍서 (한국교원대학교 제3대학 지구과학교육과)
  • Published : 2007.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

We performed R band time-series CCD photometric observations of the 55 Pandora for 2 nights using the 0.6 m telescope equipped with 2K CCD camera at SOAO (Sobaeksan Optical Astronomical Observatory). From the observation we determined its rotation period $P=0.^d2007=4.^h8168$, and maximum amplitude $0.281\;{\pm}\;0.001$. We also derived the pole position ${\lambda}_p(^o)=342$, ${\beta}_p(^o)=64$, and the shape parameter a/b = 1.27, b/c = 1.31 by applying Amplitude-Magnitude method.

소백산 천문대의 0.6m 광학망원경과 2K CCD 카메라를 이용하여 소행성 55 Pandora에 대한 R 필터 시계열 측광관측을 수행하였다. 관측으로부터 소행성의 자전 주기($P=4.^h8168$)와 진폭(${\Delta}R=0.281{\pm}0.001$란 구하였고, Amplitude-Magnitude 방법을 이용하여, 소행성 55 Pandora의 자전축 방향 ${\lambda}_p((^o)=342$, ${\beta}_p(^o)=64$와 세 축의 비는 a/b=1.27, b/c=1.31인 형태로 자전하고 있음을 알아내었다.

Keywords

References

  1. 우화성, 2001, 소행성 165 Loreley, 402 Chloe, 423 Diotima, 895 Helio의 CCD 측광. 경북대학교 이학석사 학위논문, 50 p
  2. 이시우, 안병호, 1997, 태양계천문학. 서울대학교출판부, 서울, 459 p
  3. Angelis, G, 1995, Asteroid spin, pole and shape determinations. Planetary and Space Science, 43, 649-682 https://doi.org/10.1016/0032-0633(94)00151-G
  4. Drummond, J.D., Weidenschilling, S.J., Chapman, C.R, and Davis, DR, 1988, Photometric geodesy of mainbelt asteroids. II - Analysis of lightcurves for poles, periods, and shapes. Icarus, 76, 19-77 https://doi.org/10.1016/0019-1035(88)90139-X
  5. Drummond, J.D., Weidenschilling, S.J., Chapman, C.R, and Davis, D.R., 1991, Photometric geodesy of mainbelt asteroids. IV - an updated analysis of lightcurves for poles, periods, and shapes. Icarus, 89, 44-64 https://doi.org/10.1016/0019-1035(91)90086-9
  6. James, F., 1859, Observations of (25) Phocaea and (55) Pandora. Astronomical Journal, 6, 22-23 https://doi.org/10.1086/100728
  7. James, F., 1860, Observations of Leda, Polyhymni, Mnemosyne and Pandora, made with the Equatorial by J. Ferguson. Astronomische Nachrichten, 52, 233 https://doi.org/10.1002/asna.18600521404
  8. Johanna, T., Kaasalainen, M., Michalowski, T., Kwiatkowski, T., Kryszczynska, A, Denchev, P. and Kowalski, R., 2003, Shapes and rotational properties of thirty asteroids from photometric data. Icarus, 164, 346 https://doi.org/10.1016/S0019-1035(03)00146-5
  9. Magnusson, P., Barucci, M.A, Drummond, J.D., Lumme, K., Ostro, S.J., Surdej, J., Taylor, R.C., and Zappala, V., 1989, In: Binzel, RP., Gerhrels, T., Matthews, M.S. (eds.), Asteroid II. University of Arizona Press, 67
  10. Michalowski, T. and Velichko, F.P., 1990, Photoelectric photometry, parameters of rotation and shapes of asteroids 22 Kalliope and 79 Eurynome. Acta Astronomica, 40, 321-332
  11. Moller, A, 1877, Ephemeride der Pandora (55). Astronomische Nachrichten, 90, 171 https://doi.org/10.1002/asna.18770901106
  12. Safford, T.H., 1958, Elements of (55) Pandora. Astronomical Journal, 5, 192-192 https://doi.org/10.1086/100708
  13. Schober, H.J., 1978, Photometric Variations of the Minor Planets 55 Pandora and 173 Ino during the Opposition in 1977: Light Curves and Rotation Periods. Astronomy and Astrophysics Supplement Series, 34, 377-381
  14. Searle, G, 1858, New Planet discovered. Monthly Notices of the Royal Astronomical Society, 18, 302
  15. Shevchenko, VG, Krugly, Y.N., Lupishko, D.F., Harris, AW., and Chemova, G.P., 1993, Lightcurves and phase relations of asteroid 55 Pandora. Astronomicheskii Vestnik, 27, 75-80
  16. Zappala, V. and Martino, M., 1986, Rotation axes of asteroids via the amplitude-magnitude method: Results for 10 objects. Icarus, 68, 40-50 https://doi.org/10.1016/0019-1035(86)90073-4
  17. Zellner, B., Bowell, E., 1977, Asteroid compositional types and their distributions. In: Comets, asteroids, meteorites: Interrelations, evolution and origins; Proceedings of the Thirty-ninth International Colloquium, Lyons, France, August 17-20, 1976. (A78-19751 06-88) Toledo, Ohio, University of Toledo, 1977, 185-195, Discussion, 195-197