Remotely-Controlled Low-Cost Digital Telescope

  • Gaël Serge Alain Robin Bangkok University
  • Anant K. Shukla Bangkok University
  • Romuald Jolivot Bangkok University

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Abstract

This paper presents a low-cost web controlled digital telescope which can benefit educational institutions. The system is composed of two webcams to acquire data. One is used as a wide field of view for localization purpose and the second one is used as a narrow field of view using a 40 cm focal length lens and an achromatic doublet to visualize celestial objects. The telescope orientation is performed remotely using two motors through Internet with an in-house developed soft- ware running on a Raspberry Pi 3 device. MQTT based server is used to provide a full wireless communication between the user and the telescope for orientation control, data visualization and acquisition. The telescope structure is built using a 3D-printer. An image processing algorithm is presented to calibrate mounting camera misalignment. The overlapping calibration is performed to localize the telescope image onto the large field-of-view image. It is based on Fourier domain cross-correlation technique.

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Author Biographies
Gaël Serge Alain Robin

BU-CROCCS, School of Engineering, Bangkok University, Bangkok, Thailand

Anant K. Shukla

BURL, School of Engineering, Bangkok University, Bangkok, Thailand

Romuald Jolivot

BU-CROCCS, School of Engineering, Bangkok University, Bangkok, Thailand

Published
Vol 23 No 3, May 31, 2019
How to Cite
G. Robin, A. Shukla, and R. Jolivot, “Remotely-Controlled Low-Cost Digital Telescope”, Eng. J., vol. 23, no. 3, pp. 141-156, May 2019.

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