Observation of Three Variable Stars and an Asteroid Using Small Telescopes in the United Arab Emirates (UAE)

IF 0.6 Q4 ASTRONOMY & ASTROPHYSICS

Journal of Astronomy and Space Sciences Pub Date : 2023-03-01 DOI:10.5140/jass.2023.40.1.19

M. Odeh, M. Al-Wardat

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Abstract

We present the results of using small telescopes in the United Arab Emirates (UAE) for observing variable stars and asteroids. Two telescopes, namely, 5” apochromatic refractor and 14” Schmidt-Cassegrain, at Al-Khatim Observatory (M44) were used for the observations. The targets were the three variable stars RR GEM, AG LMi, and DL CMi and the asteroid 22 Kalliope. We found a good consistency between our light curves and published ones for the calibration targets, i.e., the asteroid 22 Kalliope and the variable star RR GEM. According to previous studies, AG LMi has two suggested periods, 16.3 hours and 32.62 hours. Our results clearly confirm the second one, with a period of 32.6175 hours. The star DL CMi has several suggested periods as per previous studies, such as 4.0173 days, 1.9606 days, and 2.0086 days. Our observations confirm the first one, with a period of 4.0159 days. These results demonstrate the effectiveness of using small telescopes for observing variable stars and asteroids. This work provides some recommendations on using small telescopes for such observations.

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在阿拉伯联合酋长国用小型望远镜观测三颗变星和一颗小行星

我们介绍了在阿拉伯联合酋长国(UAE)使用小型望远镜观测变星和小行星的结果。观测使用了位于Al-Khatim天文台(M44)的两台望远镜，即5 "消色差折射望远镜和14 " Schmidt-Cassegrain望远镜。目标是三颗变星RR GEM, AG LMi和DL CMi以及小行星22 Kalliope。我们发现我们的光曲线与已发表的校准目标(即小行星22 Kalliope和变星RR GEM)的光曲线具有良好的一致性。根据先前的研究，AG LMi有两个建议周期，16.3小时和32.62小时。我们的结果清楚地证实了第二种，周期为32.6175小时。根据先前的研究，DL CMi恒星有几个建议的周期，如4.0173天，1.9606天和2.0086天。我们的观测证实了第一个，周期为4.0159天。这些结果证明了使用小型望远镜观测变星和小行星的有效性。这项工作为使用小型望远镜进行此类观测提供了一些建议。

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来源期刊

Journal of Astronomy and Space Sciences ASTRONOMY & ASTROPHYSICS-

CiteScore

1.30

自引率

20.00%

发文量

审稿时长

12 weeks

期刊介绍： JASS aims for the promotion of global awareness and understanding of space science and related applications. Unlike other journals that focus either on space science or on space technologies, it intends to bridge the two communities of space science and technologies, by providing opportunities to exchange ideas and viewpoints in a single journal. Topics suitable for publication in JASS include researches in the following fields: space astronomy, solar physics, magnetospheric and ionospheric physics, cosmic ray, space weather, and planetary sciences; space instrumentation, satellite dynamics, geodesy, spacecraft control, and spacecraft navigation. However, the topics covered by JASS are not restricted to those mentioned above as the journal also encourages submission of research results in all other branches related to space science and technologies. Even though JASS was established on the heritage and achievements of the Korean space science community, it is now open to the worldwide community, while maintaining a high standard as a leading international journal. Hence, it solicits papers from the international community with a vision of global collaboration in the fields of space science and technologies.