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CONSTELLATION THAT IS SEEN IN THE SKY DURING SUMMER

7. b -Orion

Brightest Star

8. d -Sirius

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Why do stars have colors

9. a - its because of varied temperature

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Large groups that contains stars

10. C -constellation  

but specifically this was called star clusters (large group of stars) that there are also a larger groups which is called galaxy

What is Orion

• Because it is located on the celestial equator, Orion is a well-known constellation that can be viewed all across the world. It's one among the most easily recognized constellations in the night sky.
• Two constellations may be spotted in the summer. During the day, Scorpius may be seen, while at night, Orion can be seen. During the summer, the constellations Scorpius and Orion are conspicuous in the sky.

Why Sirius is the brightest star if we based on apparent magnitude

• Sirius, with a negative apparent magnitude of 1.46, is the brightest star. The absolute magnitude of Sirius is 1.4.
• The brightest star in the night sky is Sirius, often known as the Dog Star or Sirius A. Only a few planets, the full moon, and the International Space Station shine brighter than this star, whose name means "glowing" in Greek.
• Sirius was well-known to the ancients because to its brightness. However, scientists were taken aback when a companion star, Sirius B, was discovered in 1862. Sirius A, or just Sirius, is the brightest star visible with the naked eye.

Stars have colors because

• A star's hue is determined by its surface temperature.

Constellation

A constellation is a visible shape or pattern formed by a collection of visible stars on the celestial sphere, usually depicting an animal, mythical theme, or inanimate object.

Star cluster

Star clusters are collections of hundreds to millions of stars that give astronomers with critical information on stellar development by comparing the ages and compositions of the stars.

Galaxy

Any of the star systems and interstellar stuff that make up the cosmos is referred to as a galaxy. Many of these assemblages are massive, including hundreds of billions of stars. Nature has created a huge variety of galaxies, from dim, hazy dwarf objects to magnificent spiral-shaped giants. //brainly.com/question/11172796

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Answer:

7. B.
8. D.
9. C.
10. C.

Explanation:

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