Betelgeuse: An introductory course to observational astronomy

被引：0

作者：

Sigismondi, Costantino ^{[1
]}

Pompa, Tiziana ^{[2
]}

机构：

[1] Sapienza Univ Rome, ICRA, Rome, Italy

[2] Liceo Galilei, Pescara, Italy

来源：

SIXTEENTH MARCEL GROSSMANN MEETING | 2023年

关键词：

Betelgeuse; Red giant; Variable stars; Atmospheric Extinction; Quadrant;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Betelgeuse is the brightest variable star in the sky, with a pulsational main period of 14 months and typical magnitude variation of 0.5 magnitudes. In 2020 its deep dimming was of one whole magnitude, particularly evident to each attentive observer. The technique of airmass correction to detect the stellar signal from the atmospheric extinction treats the naked eye observations as the digital astronomical observations. Harlow Shapley said in 1930s "theories come and go, while a good observation stands forever" and he spoke about naked eye observations, nowadays they are less considered in science mainly because of philosophical reasons concerning the subjectivity of knowledge and the deceit of the senses, while the knowledge of the eye physiology and of data reduction could recover the correct relationship between the human being and the Universe.

引用

页码：3507 / 3512

页数：6