A double star is a star that _________

A double star is a star that __________.

Question 1 / 2066636ee928f7522a1c519609

Question 1 of 2066636ee928f7522a1c519609

A double star is a star that __________.

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Question 1 of 20

66636ee928f7522a1c519609

A double star is a star that __________.

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🔍 Key Concepts

• Double star (binary or optical) definition in maritime/astronomical navigation • Difference between physical properties (brightness, declination) and appearance in the sky • How stars are plotted and identified on a nautical star chart

💭 Think About

• Look at which choices describe how the star LOOKS in the sky versus how bright it is or where it is located • Ask yourself: when using a star finder or star chart, what would make a star specifically labeled as a "double star"? • Consider whether "double" is referring to number of stars, brightness, or position on the celestial sphere

✅ Before You Answer

• Verify which option talks about two stars in relation to each other • Eliminate any answers that only talk about brightness changes without mentioning two stars • Eliminate any answers that involve declination relationships to the Sun, since that is not part of the basic definition of a double star

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Question 1 of 20

A double star is a star that __________.

suddenly becomes much brighter and then fades

comprises two stars that appear close together

is twice as bright as a single star

has a declination equal to twice that of the Sun

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Question 1 / 2066636ee928f7522a1c519609

Question 1 of 2066636ee928f7522a1c519609

A double star is a star that __________.

Back

Question 1 of 20

66636ee928f7522a1c519609

A double star is a star that __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed