Developing information system on lunar crescent observations

T. Hidayat*, P. Mahasena, B. Dermawan, D. Herdiwijaya, H. Setyanto, M. Irfan, B. Suhardiman, A. Santoso

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We present a progress report on the development of information system of lunar crescent astronomical observations which will be largely accessible for public domain. This consists of calculations of the Moon's ephemeris as well as systematic real-time lunar crescent observations. A well suited small telescope, equipped with a simple digital detector, is connected to a server to provide information on lunar crescent observations. The system has been used and worked well. The only constraint is poor weather condition. Network of small telescopes, installed at various locations in Indonesia, are currently planned to provide plethora of data. In the long term, this will be used to help to determine the astronomical visibility criteria of lunar crescent for Islamic calendar.

Original languageEnglish
Pages (from-to)67-80
Number of pages14
JournalITB Journal of Science
Volume42 A
Issue number1
Publication statusPublished - 2010
Externally publishedYes


  • Lunar crescent observations
  • Lunar information system
  • Real-time observations


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