Question 59 (1 point) The semi-major axis of an ellipse is half the length of it

Question

Question 59 (1 point)

The semi-major axis of an ellipse is half the length of its major axis.

Question 59 options:

Question 60 (1 point)

CCD chips can be used to make digital images of objects in the sky.

Question 60 options:

Question 61 (1 point)

An ellipse has the shape of a flattened circle.

Question 61 options:

Question 62 (1 point)

Globular clusters are found mainly in the plane of the Milky Way.

Question 62 options:

Question 63 (1 point)

Spiral galaxies were once called spiral nebulae.

Question 63 options:

Question 64 (1 point)

An active galaxy is more luminous than the average galaxy.

Question 64 options:

Question 65 (1 point)

The crab nebula is a planetary nebula.

Question 65 options:

Question 66 (1 point)

Fusion marks when a star is officially a star.

Question 66 options:

Question 67 (1 point)

Interstellar reddening is due to dust grains scattering blue light and letting red light pass.

Question 67 options:

Question 68 (1 point)

Elliptical galaxies contain new stars.

Question 68 options:

Explanation / Answer

59 False, it depends on the eccentricity of the ellipse

60 True, CCD chips can be used to make digital images of the objects in the sky as well

61 True, the circle should be flattened to create the ellipse

62 False Globular clusters are found in the halo of a galaxy

63 true, yes Spiral galaxies were once called spiral nebulae.

64 True, Yes, An active galaxy is more luminous than the average galaxy.

65 False no, The crab nebula is not a planetary nebula.

66 False, Fusion cant tell about the life of a star

67 True

68 False elliptical galaxies contain older stars

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