How is a spiral galaxy and a barred galaxy alike?

Answer 1

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Answer 2

•A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. Bars are found in approximately two-thirds of all spiral galaxies.[1] Bars generally affect both the motions of stars and interstellar gas within spiral galaxies and can affect spiral arms as well.[1]

•Edwin Hubble classified these types of spiral galaxies as "SB" (spiral, barred) in his Hubble sequence, and arranged them into three sub-categories based on how open the arms of the spiral are. SBa types feature tightly bound arms, while SBc types are at the other extreme and have loosely bound arms. SBb-type galaxies lie in between. A fourth type, SBm, was subsequently created to describe somewhat irregular barred spirals, such as the Magellanic Cloud galaxies, which were once classified as irregular galaxies, but have since been found to contain barred spiral structures. Among other types in Hubble's classifications for the galaxies are: spiral galaxy, elliptical galaxy and irregular galaxy.

In 2005, observations by the Spitzer Space Telescope backed up previously collected evidence that suggested the Milky Way is a barred spiral galaxy. Observations by radio telescopes had for years suggested the Milky Way is barred, but Spitzer's vision in the infrared region of the spectrum has provided a more definite calcul

Answer 3

spiral galaxies are the basic galaxies after the big bang and the elliptical galaxies are 2 or more merged spiral galaxies in one elliptical galaxy, thats why the elliptical galaxies are bigger and well shaped and constant.

Answer 4

1. the colors of the gas,dust,clouds

2. diffrent type of stars mostly red dwarfs or like our sun

3. their sizes

4. types of spiral galaxies...Barred and unbarred

thats all i can tell

Answer 5

A spiral galaxy is has spiral arms coming out from the core whereas a barred galaxy is a type of spiral galaxy in which the core is shaped like a bar and the spiral arms come out of the ends of the bar.

Answer 6

They are both spiral galaxies but one has a central bar while the other does not.