Euclid’s Eye on the “Hidden Galaxy” – A Spiral Revelation in Infrared

Euclid Spiral Galaxy IC 342

Euclid, with its powerful imaging technology, has unveiled the intricacies of the ‘Hidden Galaxy’, IC 342, setting the stage for a deeper exploration of the Universe’s structure. Through its detailed observations, Euclid is expected to contribute significantly to our understanding of dark matter and dark energy’s role in cosmic expansion. Credit: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi, CC BY-SA 3.0 IGO

Euclid’s View of Spiral Galaxy IC 342

Over its lifetime, ESA’s Euclid, our dark Universe detective will image billions of galaxies, revealing the hidden influence that dark matter and dark energy have on them.

Unveiling the ‘Hidden Galaxy’

That’s why it’s fitting that one of the first galaxies that Euclid observed is nicknamed the ‘Hidden Galaxy’. This galaxy, also known as IC 342 or Caldwell 5, is difficult to observe because it lies behind the busy disc of our Milky Way, and so dust, gas, and stars obscure our view.

Euclid could take this beautiful and sharp image thanks to its incredible sensitivity and superb optics. Most important here is that Euclid used its near-infrared instrument to peer through the dust and measure the light from the many cool and low-mass stars that dominate the galaxy’s mass.

The Capabilities of Euclid

“That’s what is so brilliant about Euclid images. In one shot, it can see the whole galaxy in all its beautiful detail,” explains Euclid Consortium scientist Leslie Hunt of the National Institute for Astrophysics in Italy, on behalf of a broader team working on showcasing galaxies imaged by Euclid.

“This image might look normal, as if every telescope can make such an image, but that is not true. What’s so special here is that we have a wide view covering the entire galaxy, but we can also zoom in to distinguish single stars and star clusters. This makes it possible to trace the history of star formation and better understand how stars formed and evolved over the lifetime of the galaxy.”

Euclid IC 342 Zoom 1

This cutout from Euclid’s full view of the IC 342 is at the high resolution of the VIS instrument. This is nine times better than the definition of NISP that was selected for the full view; this was done for the practical reason of limiting the format of the full image to a manageable size for downloading. The cutout fully showcases the power of Euclid in obtaining extremely sharp images over a large region of the sky in one single pointing. Although this image represents only a small part of the entire color view, the same quality as shown here is available over the full field. Credit: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi, CC BY-SA 3.0 IGO

Insights From a Spiral Galaxy

IC 342 is located around 11 million light-years from Earth, very nearby our own galaxy (in astronomical distances). It is as large as the full Moon on the sky. And as a spiral galaxy, it is considered a look-alike of the Milky Way. “It is difficult to study our own galaxy as we are within it and can only see it edge on. So, by studying galaxies like IC 342, we can learn a lot about galaxies like our own,” adds Leslie.

Euclid is not the first to observe the Hidden Galaxy. The NASA/ESA Hubble Space Telescope has previously imaged its core. But until now it has been impossible to study the star-formation history of the entire galaxy. Additionally, scientists have already spotted many globular clusters in this image, some of which have not been previously identified.

A 3D Map of Dark Matter and Dark Energy

Euclid will observe billions of similar but more distant galaxies, all distributed along a ‘cosmic web’ of dark matter filaments. In this way, it will provide a 3D view of the dark matter distribution in our Universe. The map of the distribution of galaxies over cosmic time will also teach us about dark energy, which accelerates the expansion of the Universe.

See more of Euclid’s First Images.

3 Comments on "Euclid’s Eye on the “Hidden Galaxy” – A Spiral Revelation in Infrared"

  1. mehrdad aghakasiri tehran 00989332197646 | November 8, 2023 at 6:21 am | Reply

    We astronomers in Iran are not supported by the government of the Islamic Republic of Iran, and they do not provide any facilities or funds to this field.The dictatorial regime of Akhundi.I don’t know if people can help me by mail in foreign countries or not.I made a great discovery in I studied the life of the earth and the solar system, and I have about fifty years of experience in astronomy In conclusion, I would like to thank and appreciate all of you dear astronomers who work abroad, may God protect you

  2. mehrdad aghakasiri tehran 00989332197646 | November 8, 2023 at 7:32 am | Reply

    Hello, we may be alone in the Milky Way galaxy at this time, but in the endless space like the Earth, there is infinity.You should know that everything you see is infinite in the endless space.The solar system is one of the rarest stars in the galaxy, in the arms of the galaxy.Like the Sun, there are massive stars that collide with the arms of the Milky Way just like the Sun, just as the Sun collided with more than 400 stars, but those stars that collided with the small stars of the Milky Way like the Sun aredifferent from the Sun.It is that none of those stars have a planet like Earth next to them that has even a single-celled life, let alone a civilized life.In the science class, they taught us about the moon, the earth, and the sun.By bringing a model of the earth and the moon, our science teacher showed us the movement of the earth around the sun and the movement of the moon around the earth.which was made by America, I watched this movie fifty years ago, in 1369 AH and 1990 AD, I became a member of the Scientific and Industrial Research Organization of Iran as an inventor, and until this time I continued to research and study in astronomyand Many articles and books about the destruction of human civilization a hundred million years ago and the moons of the solar system and books about the sun and the arms of the milky way and the sun’s collision with the small stars of the milky way, the ageand life and the mass and volume of the objects of the solar system and some political books and I wrote a religion that I will introduce one of the religious books, Islam is God’s order or the order of Arabs, prophetic custom, the law of religionsfrom the point of view of legal scholars.
    I have lived a very, very hard life that has no limits.Unfortunately, I do not have a university education and due to economic issues, I could not publish the books I have written in Iran and the world.Regarding the religious books that I wrote in Iran, I don’t think the Ministry of Guidance will give permission to print them, but I would like help from foreign authors to print astronomy books.The materials I wrote on this site, especially about the destruction of human civilization on earth, were published by American writers mentioning my name on famous and big sites.Iran and the world should know me.When I publish a book or an article about the destruction of human civilization on earth, I can sell it in Iran and use the profit to immigrate to Canada or America and when I settle outside of Iran., to publish all religious content.The books I wrote abroad.I live in Iran in a family that all have university education and my two siblings are dental surgeons and have degrees from the University of the Philippines, but they are trapped in Iran and now they can’t help me.When I become famous in Iran, they will probably help me to come abroad.I have a divine duty to publish the religious books I have written about the religions of Iran and the wild Bedouin Arabs and the world.I will publish about the law of God according to the opinion of the jurists of the world and it will appear in the world and if you are an American.Writers who submit scientific articles about astronomy on major sites, help me to publish the articles I submit on this site in May, major sites allow my article to be successful.I am going to become famous in Iran and publish the books I have written about astronomy and the names of those I have mentioned in Iran when they recognized me and then came abroad.I want to publish and write the books I mentioned outside of Iran because the Islamic Republic of Iran does not allow me to publish religious books.Thanks to the administrators of this scientific site, Mehrdad, a researcher at the Scientific and Industrial Research Organization of Iran.Ph.D.No. 6, No. 6, Unit 8, 2nd floor, Yas Building, Pourabtaj St., Yas Building, in front of Masih Deneshvari Hospital, Nojom, Darabad, Tehran.god bay thank you

  3. mehrdad aghakasiri tehran 00989332197646 | November 8, 2023 at 10:07 am | Reply

    Hello, there are many evidences and reasons that prove that in our solar system, the stars and their planets have joined our solar system due to the very, very strong attraction of the sun from the branches of the two arms of the Milky Way galaxy.After fifty years of experience in astronomy and Geology, I realized this important issue that before our civilization there were people living on earth who had a very advanced civilization and their lives were destroyed due to the impact of the planets that collided with the sun.And the core of that planet disintegrated after being divided in the lap of the sun, and the materials and elements inside the planet disintegrated like meteorites on the earth, and the life of the earth was destroyed.and the planets close to the sun, Mercury and Venus, it is quite clear that the surface of these planets was hit by meteorites from the planet that was disintegrated.It has meteorites on these rocky planets, and since the axis of Mercury is closer to the sun than all the planets, deep pits have been seen on the surface of this planet by explorers.The American air and space agency NASA has sent an arrow to the planet Mercury, the second planet.which approached the sun from the arm of the Milky Way galaxy and collided with the planet Venus, causing Venus to rotate around itself like all the planets, and one day and night on Venus lasts 243 days, the sun rises in the west of Venus andin Venus is placed in the east of Venus, its rotation is reversed, whenever two spheres and planets collide, either their movement slows down or reverses.This happened more in the case of Venus, that is, several planets that were close to the Sun with Venus collided, which is due to the many collisions of the planets that we mentioned.They collided and caused the planet to rotate slower and slower, and now its rotation is reversed.If a planet collides with the Sun, the rotation of Venus will slow down like Mercury’s arrow.It could not be reversed.Mercury’s orbit takes 58 days to revolve around itself.Why and how?The said planet collided with the sun because the said planet approached the sun with a guest planet because when the said star approached the sun.The said planet was orbiting the star.Due to its rotation, it is ahead of the star.Therefore, as it approached the star, the planet wanted to orbit its star, but the sun prevented it and finally collided with our sun.

    In the coming days I will talk about this topic with you dear ones.For now, I have given you two reasons for the destruction of life on earth.The systems that came to the Sun from the Milky Way were hundreds of times smaller than the Sun

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