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Justino Martinez

@justino.info

Physicist 🖥️ at the Institute of Marine Sciences and ICATMAR 🌊(BCN) 🇪🇺 Hiking the Pyrenees🏞️ and amateur astrophotographer 🌠 http://justino.info

183 Posts122 Follower50 Folgt
Justino Martinez@justino.info · 7d ago

Madrid i Ávila: 75000 Ha cremades (25x30km). 🔥 Per fer-me una millor idea del que representa he fet un vídeo posant la zona cremada als voltants de les 4 capitals catalanes... 🗞️ No tothom hi entén de futbol; si us plau, deixeu d'utilitzar "camp de futbol" com a mesura d'àrea. #incendios #incendis

Justino Martinez@justino.info · 3w ago

This is a short time-lapse test of the preparations for capturing the August 12 eclipse. First, I tested the orientation of the equatorial mount during the day to avoid seeing the Earth's rotation reflected in the solar disk. Then, I stabilized the video. Seestar S50& Google Photos #astrophotography

Justino Martinez@justino.info · 2mo ago

Monthly mean #SST of the Mediterranean Sea. Trend (global warming) has been eliminated, so only some punctual episodes (marine heatwave episodes like those of 2003) should be highlighted. Then, what has been happening since early 2022? What are these sustained high sea surface temperatures? 🌊🧪

Monthly SST for the Mediterranean Sea since 1987. It is clear that there has been a sustained increase in temperature since 2022. What has changed since the first quarter of this year? Tonga eruption? https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami
Justino Martinez@justino.info · 2mo ago

We have had extremely anomalous high temperatures, not explained by the climate warming of last decades, since 2022 in NW Mediterranean. Look, now in the 2026 we have a similar situation as 2022... Extremely high sea surface temperature in May... May..be boiled? 🌊

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Justino Martinez@justino.info · 4mo ago

Two of my old images of the Orion Nebula (M42), taken with different devices. On the left is a photo taken with a Google Pixel 7 Pro in #astrophotography mode (4 minutes of stacking), and on the right is a photo taken with a Seestar S50 (50 minutes of stacking). Curious fact in ALT description.

Complex organic molecules have been detected in M42. If you could fly through it and take a sniff, it might smell like sulfur (rotten eggs) mixed with sweet-smelling hydrocarbons (similar to a charcoal grill or hot metal).
Justino Martinez@justino.info · 5mo ago

The result isn't very spectacular, but I like this rude combination. A mosaic from 1st night + capture from the 2nd. I had to deal with the varying noise levels between the two sessions. 3D diagram showing relative distances by Galaxy Visualizer, a Python project I'm developing #astrophotography

Capturing the full Markarian's Chain with my Seestar S50 took two nights. While it's not the best photo, I had to combine a mosaic from the first night, which was composed of almost five hours of 30-second images, with a single capture of over six hours of 30-second images. This meant that I had to deal with the different noise levels from both sessions. Siril + Graxpert + Naztronomy. Final composition in Gimp and Google PhotosMain objects as detected by https://astrometry.net I created the 3D diagram showing the relative distances between all the galaxies in the chain using Galaxy Visualizer, a Python project I'm developing.
Justino Martinez@justino.info · 5mo ago

The second part of yesterday's offering. Simpke stacking of more than six hours imaged. Now I'm trying to stack both (yesterday & today's images) at the same time with Siril. It's tricky because the composition is L-shaped and background and border noise is not easy to mitigate... #astrophotography

Justino Martinez@justino.info · 5mo ago

The second part of yesterday's offering. Simpke stacking of more than six hours imaged. Now I'm trying to stack both (yesterday & today's images) at the same time with Siril. It's tricky because the composition is L-shaped and background and border noise is not easy to mitigate... #astrophotography

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Justino Martinez@justino.info · 5mo ago

The spring is about to start with 2 cloud free nights and I'll try to capture the #Markarian Chain. Today the first part: 4.8 hours images stacked by #Seestar S50 and adjusted with google photos by the phone. It is located at a distance of about 50 to 60 million ly (15-18) megaparsecs (Mpc).

The Markarian's Chain is a striking alignment of galaxies located within the heart of the Virgo Cluster. Named after astrophysicist Benjamin Markarian, it consists of at least eight galaxies, including the prominent M84, M86, and the interacting pair known as "The Eyes." While they appear as a curved line from Earth, most are physically linked by gravity and move together through space.
Justino Martinez@justino.info · 5mo ago

The spring is about to start with 2 cloud free nights and I'll try to capture the #Markarian Chain. Today the first part: 4.8 hours images stacked by #Seestar S50 and adjusted with google photos by the phone. It is located at a distance of about 50 to 60 million ly (15-18) megaparsecs (Mpc).

The Markarian's Chain is a striking alignment of galaxies located within the heart of the Virgo Cluster. Named after astrophysicist Benjamin Markarian, it consists of at least eight galaxies, including the prominent M84, M86, and the interacting pair known as "The Eyes." While they appear as a curved line from Earth, most are physically linked by gravity and move together through space. Identification of the more prominent objects by https://astrometry.net
ICATMAR@icatmar.bsky.social · 6mo ago

🛟Estem posant a punt la boia de Somorrostro del projecte EOA-BCN amb @ajuntamentbcn.bsky.social 🌊Un cop configurat l’ordinador que gestionarà les dades dels sensors i afegit un sistema AIS, la boia monitoritzarà salinitat, Tº, corrents i variables meteorològiques a 1 milla de la platja.

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Aida Alvera-Azcárate@aida-alvera.bsky.social · 6mo ago

This is always funny to see: time of abstract submission to the Liège Colloquium. I am not the only one submitting my abstracts really close to the deadline 😂. In any case, we have extended a few days, so you still have time to push that Y-axis up! New deadline 16 February 2026 #LiegeOcean26 🌊🧪

A graphic showing number of abstracts (y axis) with time (x axis). The number stays low until just a few days before the deadline, when it increases sharply.
Aida Alvera-Azcárate@aida-alvera.bsky.social · 6mo ago

Following some requests, we have extended the deadline for submitting your abstracts to the Liège Colloquium #LiegeOcean26 until 16 February. This is the last chance!! 🌊🧪 Lots of great abstracts received so far, it is going to be a great edition!

Justino Martinez@justino.info · 6mo ago

The Triangulum Galaxy (M33) lies about 3 million light-years away, seen as it was when early humans in Ethiopia began using stone tools. 2 hours 40 minutes of images processed in Seestar S50 using their AI enhancement, with final edits in Google Photos on mobile. #astrophoto 🔭🧪

M33. Image captured using a Seestar S50Some astronomical objects detected in the image using the plate solver provided by astrometry.net
Justino Martinez@justino.info · 7mo ago

An introduction on how to start using the wave model #WAVEWATCH III coupled with the ocean model #CROCO using the #OASIS coupler. #ocean #modelling 🧪🌊 www.researchgate.net/publication/...

(PDF) An introduction to the CROCO simulations: Dealing with WAVEWATCH III

PDF | This is an introduction on how to start using the wave model WAVEWATCH III coupled with the ocean model CROCO using the OASIS coupler. | Find, read and cite all the research you need on Research...

researchgate.net

Justino Martinez@justino.info · 7mo ago

#NGC-891 (Caldwell 23) is an unbarred spiral galaxy located about 32 million light-years away in the constellation Andromeda. It is considered to be very similar to our own Milky Way galaxy and would appear similar when viewed edge-on. See ALT text for processing details. 🧪 #astrophotography

View of spiral galaxy NGC-891 (also known as C23) using Seestar S50. The filamentary patterns perpendicular to the galactic plane (barely discernible in this image) are thought to be ejected dust from supernova explosions. 772 x 30-second images stacked using a Naztronomy script. Processed in GraXpert and Siril, then post-processed using Google Photos.