Roy Axelsen has published a paper on the δ Scuti star BS Aquarii in the JAAVSO.
DSLR photometry of the monoperiodic, high amplitude δ Scuti star BS Aquarii yielded five times of maximum in September and October. These data were analyzed with twenty-two times of maximum obtained by other observers from 1973 to 1995. New light elements were calculated, revealing a period of 0.197822765 day (±0.000000010) at HJD 2456543.0250 (±0.0005). These light elements represent a linear ephemeris, with no significant change in the period of the star from 1973 to 2013. The data do not support the previous suggestion in the literature of an unseen companion affecting the O–C diagram.
Axelsen, R. (2014). New Light Elements for the High Amplitude δ Scuti Star BS Aquarii. 42. Retrieved from https://www.aavso.org/media/jaavso/2992.pdf
About the author
- Roy Axelsen is Section Director of the Variable Stars Section of the AAQ and won the Page Medal in 2016.
- Variable Stars2019.06.25Photometry of Variable Stars
- Variable Stars2019.06.25The visual observation of variable stars
- Variable Stars2017.03.22Digital single lens photometry in white light: a new concept tested on data from the high amplitude δ Scuti star V703 Scorpii
- Variable Stars2016.10.14The high amplitude δ Scuti star AD Canis Minoris