Sula Welty

Written by Sula Welty

Modified & Updated: 02 Mar 2024

Jessica Corbett

Reviewed by Jessica Corbett

18-astonishing-facts-about-messier-87-m87
Source: Britannica.com

Messier 87, also known as M87, is a fascinating celestial object that has captured the attention of astronomers and space enthusiasts alike. Located in the Virgo constellation, M87 is a massive elliptical galaxy that holds numerous astonishing mysteries waiting to be unraveled. From its supermassive black hole to its intricate jet formations, M87 has been a subject of intense study and observation for decades.

In this article, we will delve into the depths of M87 and uncover 18 astonishing facts about this cosmic wonder. From mind-boggling statistics to mind-blowing discoveries, these facts will provide you with a glimpse into the captivating world of M87.

Key Takeaways:

  • M87, located in the Virgo constellation, houses a supermassive black hole and emits a powerful jet of high-energy particles, making it a fascinating subject for astronomers and stargazers alike.
  • The supermassive black hole at the heart of M87 is larger than our solar system and was the first to be directly imaged, offering extraordinary insights into the mysterious nature of these cosmic entities.
Table of Contents

M87 is located in the constellation Virgo.

Messier 87 (M87) is a massive elliptical galaxy situated in the constellation Virgo, approximately 53.5 million light-years away from Earth. Its distinct location has made it a subject of fascination for astronomers and stargazers alike.

M87 has a supermassive black hole at its center.

One of the most remarkable features of M87 is its supermassive black hole, which boasts a mass equivalent to billions of suns. This black hole, known as M87*, has been the target of extensive research and has even been imaged by the Event Horizon Telescope in 2019.

M87 is home to a powerful jet of high-energy particles.

Emerging from the vicinity of M87’s black hole is a colossal jet of high-energy particles that stretches for thousands of light-years. This jet is believed to be created by the intense gravitational forces and magnetic fields near the black hole’s event horizon.

M87 is one of the brightest radio sources in the sky.

Thanks to its active galactic nucleus and immense jet, M87 shines brightly in radio wavelengths. Its prominent radio emissions make it a popular target for radio telescopes and a subject of ongoing research in the field of radio astronomy.

M87 is part of the Virgo Cluster.

M87 is a significant member of the Virgo Cluster, a massive collection of galaxies located within the Virgo constellation. This cluster is notable for its rich concentration of galaxies and serves as a valuable resource for studying galactic interactions and dynamics.

M87 was discovered by Charles Messier in 1781.

The French astronomer Charles Messier first spotted M87 during his observations in He included it in his famous Messier Catalogue, which lists various astronomical objects, including galaxies, star clusters, and nebulae.

M87 has a visual magnitude of 8.6.

With an apparent visual magnitude of 8.6, M87 is visible through a moderate-sized telescope. Although it may not appear as stunning as some brighter celestial objects, its significance lies in its unique characteristics and position in the cosmos.

M87 has a diameter of about 120,000 light-years.

The elliptical shape of M87 spans a diameter of roughly 120,000 light-years. This makes it one of the largest galaxies known, dwarfing even our own Milky Way in size and scale.

M87 is surrounded by a faint halo of stars.

Observations of M87 have revealed the presence of a faint halo of stars encircling the galaxy. These stars are thought to be remnants from smaller galaxies that were absorbed by M87 over its long cosmic history.

M87 is an active galaxy.

As an active galaxy, M87 exhibits increased levels of electromagnetic emissions, especially in the radio and X-ray spectra. These intense emissions are believed to be caused by the supermassive black hole at its core, along with various other astrophysical processes.

M87’s jet can travel at nearly the speed of light.

The jet emanating from M87’s core reaches astonishing speeds, approaching the velocity of light. This powerful outflow of particles showcases the immense energy released by the supermassive black hole as it devours surrounding matter.

M87’s black hole has a mass of about 6.5 billion times that of the sun.

The black hole residing at the heart of M87, known as M87*, is an absolute behemoth with a mass of approximately 6.5 billion solar masses. This staggering mass provides further evidence of the extraordinary nature of this galaxy.

M87’s galaxy cluster contains over 2,000 members.

The Virgo Cluster, to which M87 belongs, is a vast congregation of galaxies. It comprises over 2,000 confirmed members, making it one of the most extensive galaxy clusters in the local universe.

M87’s jet is visible even in small telescopes.

Despite its immense distance from Earth, the high-energy jet of M87 can be observed even through smaller telescopes. This makes it an accessible and awe-inspiring sight for amateur astronomers passionate about exploring the wonders of the cosmos.

M87’s black hole was the first to be directly imaged.

In April 2019, the Event Horizon Telescope Collaboration captured the first-ever direct image of a black hole. The subject of this historic image was none other than M87’s supermassive black hole, offering extraordinary insights into the mysterious nature of these cosmic entities.

M87’s black hole is surrounded by a glowing disk of hot gas.

The black hole at the center of M87 is enveloped by a luminous accretion disk composed of superheated gas. This disk emits copious amounts of radiation, contributing to the overall brightness of the galaxy in various wavelengths of light.

M87 is a prominent source of gamma-ray emissions.

M87 is known to emit high-energy gamma rays, which are the most energetic form of electromagnetic radiation. These emissions are linked to the interactions between M87’s jet and the surrounding intergalactic medium.

M87’s supermassive black hole is larger than the solar system.

With a diameter spanning approximately 24 billion kilometers, M87’s supermassive black hole is larger than our solar system. This staggering size demonstrates the incredible scale of these cosmic phenomena and their ability to shape the galaxies they reside in.

Conclusion

Messier 87 (M87) is undoubtedly a fascinating celestial object that never fails to leave us in awe. With its massive size, powerful jets of energy, and the black hole at its center, M87 has captured the attention of astronomers and space enthusiasts around the world. As we delve deeper into the mysteries of the universe, M87 serves as a reminder of the extraordinary wonders that lie beyond our own planet.

By studying and understanding M87, scientists can gain valuable insights into the formation and evolution of galaxies, as well as the fundamental laws of physics that govern our universe. As technology continues to advance, we can expect even more astonishing revelations about M87 and other distant cosmic entities that will expand our knowledge and deepen our sense of wonder about the cosmos.

FAQs

1. How far is Messier 87 from Earth?

Messier 87 is located approximately 54 million light-years away from Earth. This vast distance makes it one of the more distant objects visible to amateur astronomers.

2. How big is the black hole in Messier 87?

The black hole at the center of M87 is an absolute behemoth, with a mass that is estimated to be about 6.5 billion times that of our Sun. Its size and gravitational pull are unparalleled, contributing to the fascinating phenomena observed within the galaxy.

3. What are the powerful jets emitted by Messier 87?

Messier 87 is known for its prominent jets, which are streams of high-energy particles that are propelled at nearly the speed of light. These jets extend thousands of light-years and are likely generated by the black hole’s intense gravitational forces.

4. Can Messier 87 be seen with the naked eye?

No, Messier 87 cannot be seen with the naked eye. Its distant location and relatively dim appearance make it best suited for observation with telescopes, both amateur and professional.

5. What implications does studying Messier 87 have for astrophysics?

Studying Messier 87 and its unique features can provide valuable insights into various astrophysical phenomena, including black hole physics, galaxy formation, and the behavior of high-energy particles. It contributes to our overall understanding of the universe and the fundamental laws that govern it.

Was this page helpful?

Our commitment to delivering trustworthy and engaging content is at the heart of what we do. Each fact on our site is contributed by real users like you, bringing a wealth of diverse insights and information. To ensure the highest standards of accuracy and reliability, our dedicated editors meticulously review each submission. This process guarantees that the facts we share are not only fascinating but also credible. Trust in our commitment to quality and authenticity as you explore and learn with us.