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Compared to the Milky Way, the Andromeda Galaxy appears to have predominantly older stars with ages >7 × 10 9 years. [61] [ clarification needed ] The estimated luminosity of the Andromeda Galaxy, ~2.6 × 10 10 L ☉ , is about 25% higher than that of our own galaxy.
38° 40′ 12″. 9.9. M5e-M6e. a variable star in the constellation of Andromeda. It is classified as a semiregular variable pulsating giant star, and varies from an apparent visual magnitude of 14.5 at minimum brightness to a magnitude of 9.9 at maximum brightness, with a period of approximately 238.3 days. [17] [18]
Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi ). [1] The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars. ( Pistol Star, Rho Cassiopeiae, Betelgeuse, and VY Canis ...
The Andromeda Galaxy (M31) has satellite galaxies just like the Milky Way. Orbiting M31 are at least 13 dwarf galaxies: the brightest and largest is M110, which can be seen with a basic telescope. The second-brightest and closest one to M31 is M32. The other galaxies are fainter, and were mostly discovered starting from the 1970s.
To visualize that scale, if the Sun were a ping-pong ball, Proxima Centauri would be a pea about 1,100 km (680 mi) away, and the Milky Way would be about 30 million km (19 million mi) wide. Although stars are more common near the centers of each galaxy, the average distance between stars is still 160 billion (1.6 × 10 11) km (100 billion mi ...
Alpheratz / ælˈfɪəræts /, [13] [14] or Alpha Andromedae ( α Andromedae, abbreviated Alpha And or α And ), is a binary star 97 light-years from Earth and is the brightest star in the constellation of Andromeda when Mirach (β Andromedae) undergoes its periodical dimming. Immediately northeast of the constellation of Pegasus, it is the ...
Pages in category "Stars in the Andromeda Galaxy" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. A.
Nu Andromedae. Nu Andromedae ( Atropabella by Alicia, Nu And, ν Andromedae, ν And) is a binary star in the constellation Andromeda. The system has an apparent visual magnitude of 4.5, [2] which is bright enough to be seen with the naked eye. It is approximately 620 light-years (190 parsecs) from Earth. [1] Situated just over a degree to the ...