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Main Authors: Phan-Thanh, Hien, Nguyen-Duc, Nguyen, Le-Quang, Thuy, Hinse, Tobias C., Nguyen-Luong, Quang
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2511.14094
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author Phan-Thanh, Hien
Nguyen-Duc, Nguyen
Le-Quang, Thuy
Hinse, Tobias C.
Nguyen-Luong, Quang
author_facet Phan-Thanh, Hien
Nguyen-Duc, Nguyen
Le-Quang, Thuy
Hinse, Tobias C.
Nguyen-Luong, Quang
contents This project presents the development and implementation of a compact spectrometer, named SPECTRUMMATE, tailored for small telescopes. Small telescopes offer several advantages: they are cost-effective, occupy less space, and are simpler to set up than larger instruments. This makes them particularly suitable for amateur astronomers and educational institutions with limited resources. Moreover, small telescopes can effectively observe bright celestial objects, enabling valuable contributions to astronomical projects. Based on the Sol'EX design, SPECTRUMMATE was constructed using optical components available at the Space and Applications Laboratory (SpaceLAB), University of Science and Technology of Hanoi, Vietnam. The instrument is designed to meet the specific needs of astronomers who require detailed analysis within the visible spectrum (SPECTRUMMATE can capture a waveband of 368 angstrom/image, spectral coverage from 4000 to 6600 angstrom, and resolving power R = 2546 at 5500 angstrom). To achieve optimal performance, the design process involved selecting and configuring optical elements, including a collimator, diffraction grating, and objective lens. Experimental setups were tested to minimize spectral dispersion while ensuring the system's compactness and ease of alignment. Spectra obtained by SPECTRUMMATE demonstrated efficient spectral calibration and the capability to capture high-resolution spectra of bright light sources, such as the Sun, making it a valuable tool for specialised spectroscopic observations. The modular design of SPECTRUMMATE also allows users to change its components easily to achieve the desired spectral range and resolution.
format Preprint
id arxiv_https___arxiv_org_abs_2511_14094
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SPECTRUMMATE: A Low-cost Spectrometer for Small Telescopes
Phan-Thanh, Hien
Nguyen-Duc, Nguyen
Le-Quang, Thuy
Hinse, Tobias C.
Nguyen-Luong, Quang
Instrumentation and Methods for Astrophysics
This project presents the development and implementation of a compact spectrometer, named SPECTRUMMATE, tailored for small telescopes. Small telescopes offer several advantages: they are cost-effective, occupy less space, and are simpler to set up than larger instruments. This makes them particularly suitable for amateur astronomers and educational institutions with limited resources. Moreover, small telescopes can effectively observe bright celestial objects, enabling valuable contributions to astronomical projects. Based on the Sol'EX design, SPECTRUMMATE was constructed using optical components available at the Space and Applications Laboratory (SpaceLAB), University of Science and Technology of Hanoi, Vietnam. The instrument is designed to meet the specific needs of astronomers who require detailed analysis within the visible spectrum (SPECTRUMMATE can capture a waveband of 368 angstrom/image, spectral coverage from 4000 to 6600 angstrom, and resolving power R = 2546 at 5500 angstrom). To achieve optimal performance, the design process involved selecting and configuring optical elements, including a collimator, diffraction grating, and objective lens. Experimental setups were tested to minimize spectral dispersion while ensuring the system's compactness and ease of alignment. Spectra obtained by SPECTRUMMATE demonstrated efficient spectral calibration and the capability to capture high-resolution spectra of bright light sources, such as the Sun, making it a valuable tool for specialised spectroscopic observations. The modular design of SPECTRUMMATE also allows users to change its components easily to achieve the desired spectral range and resolution.
title SPECTRUMMATE: A Low-cost Spectrometer for Small Telescopes
topic Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2511.14094