Lesson plan
Lambda Cancri
Lambda Cancri is a blue-white-hued spectroscopic binary star in the zodiac constellation of Cancer. Its name is a Bayer designation that is Latinized from λ Cancri, and abbreviated Lambda Cnc or λ Cnc. With a combined apparent visual magnitude of +5.93, it is faintly visible to the naked eye. Based upon parallax measurements obtained during the Gaia mission, it is approximately distant from the Sun. The system is drifting further away with a line of sight velocity of around +23 km/s. The two components are designated Lambda Cancri A (formally named Piautos ) and B. The position of this system near the ecliptic means it is subject to lunar occultation.
Article summary
Lambda Cancri is a blue-white-hued spectroscopic binary star in the zodiac constellation of Cancer. Its name is a Bayer designation that is Latinized from λ Cancri, and abbreviated Lambda Cnc or λ Cnc. With a combined apparent visual magnitude of +5.93, it is faintly visible to the naked eye. Based upon parallax measurements obtained during the Gaia mission, it is approximately distant from the Sun. The system is drifting further away with a line of sight velocity of around +23 km/s. The two components are designated Lambda Cancri A (formally named Piautos ) and B. The position of this system near the ecliptic means it is subject to lunar occultation.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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