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Xavi Bros

@xavi-bros

Amateur Astronomer. Anysllum Observatory owner. AstroSabadell member. Psychologist pursuing a Psychiatry Phd. Author of “En las playas de Sedna”.

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21.11.2024
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Latest posts by Xavi Bros @xavi-bros

Wonderful. Have a nice day!

05.03.2026 14:31 👍 0 🔁 0 💬 0 📌 0
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Are all open clusters boring or equal?
Of course not!
M35 is bright with about 500 stars situated 2970 lightyears far. In the same field you can see NGC 2158 a more concentrated one not related with M35, situated 9000 ly far.
Image: R80mm Anysllum amateur Observatory.

05.03.2026 13:19 👍 24 🔁 3 💬 1 📌 0
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Jules Verne:

“How many things have been denied one day, only to become realities the next!”

08.02.2026 08:04 👍 2 🔁 0 💬 1 📌 0
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Penghu 1 the famous fossil jawbone found in Taiwan was a Denisovan‼️
This finding is important because we just realize Denisovans lived not only in Siberia or Tibet but also in the warm south-eastern shore of Asia…

Image: National Geographic

08.02.2026 00:06 👍 4 🔁 3 💬 0 📌 0
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What is a Herbig–Haro object?

It’s a bright nebulosity with jets associated with a newborn star.

It is formed when narrow jets of partially ionised gas ejected by stars collide with nearby clouds of gas and dust at several hundred kilometres per second.

Image: HH211 by JWST

31.01.2026 15:56 👍 2 🔁 1 💬 0 📌 0
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The binary star Wolf-Rayet 140 produce shells of dust every eight years as rings‼️
Each ring was created when the two stars came close together and their stellar winds collided, compressing the gas and forming dust.
Image by the James Webb Space Telescope:
go.nasa.gov/4c8iA18

24.01.2026 04:12 👍 5 🔁 2 💬 0 📌 0
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¿No lo has leído aún?
Cuatro tramas que confluyen en una‼️

“En las playas de Sedna”

“…una obra dotada de profundidad que se adentra en cuestiones de calado para el ser humano, como sólo pasa con la buena ciencia ficción”.
Miguel Rodríguez

Opiniones:
amzn.to/3qpNMDv

27.12.2025 16:55 👍 3 🔁 1 💬 0 📌 0
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Another beautiful open cluster in Cassiopeia: NGC 663 located 8,800 light years from us. It has about 400 very young stars (only 20-25 million years old). Most of them are blue massive ones.
I did this image with 45min exposure in each RGB filter and a 35cm telescope.

26.12.2025 05:47 👍 13 🔁 5 💬 0 📌 0
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M103 is a small open cluster located 9400 light-years far and only 15 l-y of diameter. It has 172 stars with two prominent ones.
This image is a RGB’s 180 minutes exposure taken remotely from my private observatory “Anysllum”.
See the diverse color of stars in this area of our Milky Way…

15.12.2025 14:11 👍 5 🔁 0 💬 0 📌 0
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Detail of just a part of the ring of M57 “Ring Nebula” the archetypal of a planetary nebula.
This amazing image has been done by the James Webb Space Telescope with its NIRCam Camera.
See the intricate details in this image!

11.12.2025 05:23 👍 2 🔁 0 💬 0 📌 0
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NGC 7789 (“White Rose”) is an open cluster in Cassiopeia situated 7600 lightyears far. It’s composed by more than 1000 stars‼️in a rich Milky Way’s field.
This two-hours exposure RGB image was done from the Anysllum observatory recently (Xavier Bros - AstroSabadell).

04.12.2025 21:34 👍 5 🔁 1 💬 0 📌 0
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The 23th exoplanet transit measured!
TOI-1728b is a Neptune-like exoplanet that orbits a K-type star situated 198 lightyears far. Its mass is 26.78 Earths. The brightness gap detected is 0,007 magnitudes!
Observation done from the “Anysllum Observatory” by Xavier & Jordi Bros.

24.11.2025 06:24 👍 3 🔁 0 💬 0 📌 0
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NGC 2403 (Caldwell 7) is a spiral galaxy “only” 8 million lightyears distant. It’s very similar to M33. In this LHaRGB image you can see several star-forming HII regions.
(16h of integration from Anysllum Observatory (X.Bros-J.Zapata) processed by J.Zapata! AstroSabadell).

22.11.2025 18:40 👍 7 🔁 0 💬 0 📌 0
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A group of galaxies around NGC 7331, 40 million lightyears far. The main galaxy is an unbarred spiral with a diameter of 120000 lightyears, similar to MilkyWay.
Image done by Xavier Bros and Jaume Zapata, AstroSabadell members, from the remote-operated "Anysllum" observatory.

03.11.2025 14:03 👍 6 🔁 1 💬 0 📌 0
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An incredible image of C/2025 A6 (Lemmon) by Tobias Swaczyna.
Enjoy it‼️

26.10.2025 07:24 👍 5 🔁 2 💬 0 📌 0
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The most difficult exoplanet transit I could observe until now:
K2-285c, a neptune-like around a K star 500 lightyears far.

Detected a tiny disminution of brightness of only 2,3 thousandths of a magnitude‼️The light curve is not beautiful but it’s a challenge achieved.

22.10.2025 15:34 👍 3 🔁 0 💬 0 📌 0
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M52 is a rich open cluster with a mass of about 1200 suns. As usual in open clusters is very “young” (age 158 million years…).
Image taken from the amateur observatory Anysllum @AstroSabadell with a 35cm telescope and 45min exp in each RGB filter.

20.10.2025 21:43 👍 12 🔁 1 💬 0 📌 0
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See this amazing Venus image done by NASA's Parker Solar Probe in its trip to the Sun in 2021.
It is possible to see some Venus details through its clouds‼️

18.10.2025 12:54 👍 4 🔁 2 💬 0 📌 0
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How is our Galaxy’s shape?

The MilkyWay is a barred spiral galaxy with about 200000-400000 million stars… our sun is 30000 lightyears from the center where is a black hole.
Sun's Galactic rotation period is about 240 M years!

Image: Illustration by R.Hurt, JPL-Caltech, NASA

15.10.2025 18:40 👍 6 🔁 2 💬 0 📌 0
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A moon over the sky of Mars:
In this Martian skyscape the brightest object is Deimos, the smallest of Mars’ two moons.
This image was taken before sunrise by Perseverance rover on March 1, 2025.
Image: NASA via APOD.

15.10.2025 01:04 👍 2 🔁 0 💬 0 📌 0
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Communication with alien life:
Very different cognition, culture and language could be as difficult or more than technology or distance to communicate with them.

Image: movie The Arrival

12.10.2025 22:01 👍 3 🔁 0 💬 0 📌 0
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The exoplanet Kepler-76b is situated 2684 lightyears far. Its a hot jupiter (mass of 2 Jupiters).
This transit observation was done from the Teide observatory, telescope IAC 80, by the IAC-AstroSabadell team‼️

12.10.2025 21:52 👍 2 🔁 0 💬 0 📌 0
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The Messier 11 open cluster (“the wild duck”), is a compact, metal rich cluster situated 6120 lightyears far.
A beautiful contrast of its young stars with the more diverse stars of the rich Milky Way backgroud:
Image from the Anysllum Observatory, 90 minutes of RGB exposure.

08.10.2025 04:29 👍 5 🔁 0 💬 0 📌 0
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Neptune, it’s wonderful rings and the main moon of this system, Triton, in a memorable image by the James Web Space Telescope… beautiful ‼️

08.10.2025 03:24 👍 3 🔁 0 💬 0 📌 0
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Isaac Asimov:

“Don't you believe in flying saucers? in telepathy? in life after death?
No, I reply. No and no.
I believe in evidence, in observation confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it.”

27.09.2025 13:56 👍 2 🔁 0 💬 0 📌 0
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Observed 16 exoplanet transits from the Anysllum Observatory:

Last one was XO-7 b: a gas giant exoplanet that orbits an F-type star. Its mass is 0.709 Jupiters.
Its star is situated 764 lightyears far‼️
During the transit the star is only 0.01 magnitudes fainter‼️

19.09.2025 06:52 👍 4 🔁 1 💬 0 📌 0
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The galaxy cluster of Coma Berenice, Abell 1656, is situated 320 million lightyears far… and has about 1000 galaxies‼️
How many do you see in this image behind the blue bright stars of our own galaxy?
18 hours of LRGB exposure from the Anysllum Observatory, AstroSabadell.

11.09.2025 03:58 👍 5 🔁 1 💬 0 📌 0
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The universe is expanding at different rates‼️
According a research using JWST data: the Hubble constant could be different when we observe in different directions:
www.livescience.com/space/cosmol...

08.09.2025 06:23 👍 2 🔁 1 💬 0 📌 0
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When bright & dark nebulae met with open clusters, we see huge views: Melotte 15 -part of Heart Nebula- with bright stars between gas & dust!
Anysllum observatory image obtained after 21 hours of SHO-LRGB by Xavier Bros & Jaume Zapata both members of AstroSabadell.

06.09.2025 17:24 👍 5 🔁 2 💬 0 📌 0
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GEORGE ORWELL:

“Who controls the past controls the future. Who controls the present controls the past.”

“In a time of deceit telling the truth is a revolutionary act.”

“The past was erased, the erasure was forgotten, the lie became the truth.”

06.09.2025 07:55 👍 1 🔁 1 💬 0 📌 0