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.
Publisher
The Korean Space Science Society
Subject
General Earth and Planetary Sciences,General Physics and Astronomy
Reference9 articles.
1. Avvakumova EA, Malkov OY, Kniazev AY, Eclipsing variables:
catalogue and classification, Astron. Nachr. 334, 860-865 (2013).
10.1002/asna.201311942
2. Heinze AN, Tonry JL, Denneau L, Flewelling H, Stalder B, et al.,
A first catalog of variable stars measured by the asteroid terrestrial-impact last
alert system (ATLAS), Astron. J. 156, 241 (2018).
10.3847/1538-3881/aae47f
3. Jayasinghe T, Stanek KZ, Kochanek CS, The ASAS-SN all-sky catalog
of bright variable stars, Am. Astron. Soc. Meet. Abstr. 52
(2020).
4. Johnston WR, Asteroids with satellites database (2022)
[Internet], viewed 2022 Dec 15, available from:
http://www.johnstonsarchive.net/astro/astmoons/am-00022.html
5. Mousavi-Sadr M, Ebadi H, BVR photometric study and absolute
parameters of the eclipsing binary AG LMi, New Astron. 89, 101625 (2021).
10.1016/j.newast.2021.101625