What Hubble classification is M51?
Table of Contents
What Hubble classification is M51?
M51 Data Table
| Messier | 51 |
|---|---|
| Object Type | Spiral galaxy |
| Classification | SA(S) bc |
| Constellation | Canes Venatici |
| Distance (light-years) | 23 Million |
What type of galaxy is M77?
M77 is a prime example of a Seyfert galaxy, or a galaxy with an intensely active center that is obscured by gas and dust in visible light.
Is M51 a barred spiral galaxy?
Sb spiral M51 (note, M51 has a companion galaxy, and it is the main object that is classified as an Sb spiral) Sc spiral NGC 2997. SBa barred spiral M95.
Is M51 two galaxies?
Collectively known as M51, the two galaxies are merging. At the center of each galaxy is a supermassive black hole millions of times more massive than the Sun. The galactic merger should push huge amounts of gas and dust into those black holes and into orbit around them.
What does M51 mean in space?
Messier 51 (M51), better known as the Whirlpool Galaxy, is an iconic grand-design spiral galaxy located in the constellation Canes Venatici. The Whirlpool Galaxy has an apparent magnitude of 8.4 and lies at an approximate distance of 23 million light years from Earth.
How old is the M51 galaxy?
about 400 million years old
Astronomers estimate that it is about 400 million years old and has a mass 40 million times larger than our Sun. The concentration of stars is about 5,000 times higher than in our solar neighborhood, the Milky Way Galaxy.
Where is the m77 galaxy?
RA 2h 42m 41s | Dec -0° 0′ 48″Messier 77 / Coordinates
Can you see M51 with a telescope?
M51’s companion galaxy (NGC 5195) is clearly visible in photographs, and even detectable through the telescope eyepiece (with enough aperture).
Does M51 have a black hole?
The NASA/ESA Hubble Space Telescope has provided astronomers with what may be their first direct view of an immense ring of dust which fuels a massive black hole at the heart of the spiral galaxy M51, located 20 million light-years away.
What does M stand for in m101?
Messier 101 (The Pinwheel Galaxy) | NASA.
What is the difference between Type 1 and Type 2 Seyfert galaxies?
The nuclear spectra of Type 1 Seyfert galaxies show broad emission lines, which are indicative of a central concentration of hot gas that is expanding at speeds of up to thousands of kilometres per second. Type 2 Seyferts have strong emission lines, but they indicate more-modest velocities, less than 1,000 km/sec.
Who killed Cetus?
294 : “Perseus killed the Ketos (Cetus, Sea-Monster) beside the Erythraian Sea [the Red Sea].”
What season is Orion?
Orion is most visible in the evening sky from January to April, winter in the Northern Hemisphere, and summer in the Southern Hemisphere.
Can you see M51 with a small telescope?
Messier 51 can be spotted with binoculars as a gray patch of light. The core of the galaxy, as well as its companion NGC 5195, can be observed through small telescopes. Using bigger instruments will let you contemplate its halo and details within its spiral arms.
Can you see M101 with binoculars?
M101 is a large face-on spiral galaxy located 22 million light-years away in the constellation of Ursa Major. At magnitude +7.9, it can be glimpsed in binoculars or small telescopes from dark sites.
What is a Seyfert 1 galaxy?
What type of galaxy is a Seyfert?
Seen in visible light, most Seyfert galaxies look like normal spiral galaxies, but when studied under other wavelengths, it becomes clear that the luminosity of their cores is of comparable intensity to the luminosity of whole galaxies the size of the Milky Way.
