Prof. Josep M. Trigo-Rodríguez
LightNews LightNews
banner
joseptrigo.bsky.social
Prof. Josep M. Trigo-Rodríguez
@joseptrigo.bsky.social
1.3K followers 610 following 420 posts
Astrophysicist and science writer. My ongoing research lines include: Meteoritics, primordial planetary system materials, their physico-chemical properties, transport of volatiles to planets, planetary atmospheres and astrobiology. Saganist
Posts Replies Media Videos
joseptrigo.bsky.social
PRE-PERIHELION STUDY OF #COMET #3IATLAS with our findings about its spectroscopic similitude with CR carbonaceous chondrites. Manuscript submitted for publication in which we propose it is a #TNO-like body experiencing #cryovolcanism
Now in Cornell Univ. @arxiv repository:
➡️ arxiv.org/abs/2511.19112
AI-generated image to exemplify the onset of cryogenic activity in 3I/ATLAS, here represented during a Mars approach
November 25, 2025 at 2:28 PM
joseptrigo.bsky.social
NIT D'AURORA SAR SOBRE #CATALUNYA! Hem pogut gaudir-la des del Montseny a partir de les 4h45 CET quan era ben intensa i visible a ull nu. Unes imatges des del #MontsenyObservatory.
Com d'intensa serà la propera nit amb l'arribada del vent solar carregat per la massiva ejecció coronal? 🤩👇
#Aurorae
November 12, 2025 at 6:57 AM
joseptrigo.bsky.social
Today at #Hera_mission headquarters visiting our @esa.int colleagues, in ESTEC, #TheNetherlands. Great times to come to better understand #asteroids. Discussing the main implications of our forthcoming paper on undifferentiated asteroid bulk chemistry for future sample return and mining?
October 29, 2025 at 2:48 PM
joseptrigo.bsky.social
COMETS #LEMMON & #SWAN IN AFTERNOON SKIES, both noticeable just using binoculars. Here are both imaged yesterday from #MontsenyObservatory:
🔖 theconversation.com/dos-nuevos-c...
How to find Lemmon?👇
☄️ theconversation.com/como-ver-el-...
October 25, 2025 at 7:32 PM
joseptrigo.bsky.social
#Comet #Lemmon imaged last night from #MontsenyObservatory using the LX200 + ST8. Don't lose your chance today of observing it, easy to find about 10° over the star Arcturus. How to find it during the next nights already explained in @conversation_es

theconversation.com/como-ver-el-...
#PlanetSci🤩
October 23, 2025 at 4:35 PM
joseptrigo.bsky.social
EL COMETA #LEMMON MERAVELLA ALS ASTRÒNOMS és el meu nou article divulgatiu a @Divul_cat on explico en la llengua comuna de Catalunya, Illes Balears i del País Valencià com trobar al cel aquest preciós cometa:

www.enciclopedia.cat/divulcat/Lem...
📷 Josep M. Llenas, Obs. de Pujalt, 18 Oct.
October 21, 2025 at 4:43 PM
joseptrigo.bsky.social
TROBADA D'AGRUPACIONS ASTRONÒMIQUES DE #CATALUNYA a l'Observatori de Pujalt amb quasibé un centenar de participants amb més d'una desena d'agrupacions participants. Nosaltres hem presentat el naixement d'una nova: @AstroMontseny
Gràcies Josep M. Llenas i #Astroanoia per organitzar-ho!
October 18, 2025 at 11:24 PM
joseptrigo.bsky.social
Presencialmente, imagen de hoy🤩👇ya en magnitud +5.2
(1 min. de exposición)
October 11, 2025 at 5:53 PM
joseptrigo.bsky.social
2) As bonus track the image of the green coma a half hour later, just during twilight. Really beautiful!
October 8, 2025 at 7:31 AM
joseptrigo.bsky.social
COMET #C2025A6 #LEMMON WITH ITS TAIL THIS MORNING in a stacked image of 35 images, 10 s exp.each. Despite the Full Moon interference, really beautiful green coma through the telescope in +6 mag. A pleasure enjoying this fascinating moment with my wife.
To find it
theconversation.com/dos-nuevos-c...
October 7, 2025 at 1:23 PM
joseptrigo.bsky.social
COMET #C2025A6 #LEMMON THIS MORNING from #MontsenyObservatory
The coma is already about 10 arcmin wide, and +5.9 V magnitude. I share a 10 s exposure image where it compares with +3.1 mag. Tania Australis (mu UMA) M0 star. Description+charts to find it
theconversation.com/dos-nuevos-c...
#PlanetSci
October 6, 2025 at 12:04 PM
joseptrigo.bsky.social
FOR ALL FRIENDS OBSERVING THE #MOON TONIGHT: Just sharing with you the main features visible on our satellite over this weekend (craters in bold, Lunar maria in cursive)
Join the closest outreach initiative to enjoy it through the telescope🌔🔭🤩
#InternationalObserveTheMoonNight #Moon #PlanetSci
October 4, 2025 at 5:20 PM
joseptrigo.bsky.social
#Comet #Lemmon #C2025A6 is already a naked eye object!

theconversation.com/dos-nuevos-c...

Image on 2025-10-03 2.24 UT RGB 25min, Zeiss-Milvus f-135/2.8 Asi 294 field 8x6°
by Michael Jäger & Gerald Rhemann
#Wov!🤩
October 3, 2025 at 2:44 PM
joseptrigo.bsky.social
#Comet 𝟮𝟬𝟮𝟱 𝗔𝟲 (𝗟𝗲𝗺𝗺𝗼𝗻) is getting bright. It will be

Beautiful image by
📷 Aleix Roig @astrocatinfo.bsky.social on Oct.2 ☄️

I wrote this article in @es.theconversation.com to find it:
theconversation.com/dos-nuevos-c...

Just prepare your telescopes and cameras, be ready for this beauty!
October 2, 2025 at 5:36 PM
joseptrigo.bsky.social
EL PRÒXIM DISSABTE 4 D'OCTUBRE us esperem de 21h a 23h a l'Ermita de Sant Llop de Riells i Viabrea, #Girona, #Catalunya. Gaudirem de la Nit Internacional d'Observació de la #Lluna amb tots els que ens acompanyeu en una nit realment única
#DiaInternacional #ObservemLaLluna
#CiènciaEnCatalàNaturalment
September 29, 2025 at 8:41 PM
joseptrigo.bsky.social
#MOON & #VENUS this morning, attention to the close angular approach to #Regulus tomorrow, and to #Venus over the weekend!
#MontsenyObservatory
September 18, 2025 at 6:08 PM
joseptrigo.bsky.social
CERES: UN ANTIC MÓN OCEÀNIC
El meu article publicat a Divulcat on explico els fascinants descobriments de la sonda #Dawn sobre l'evolució primerenca d'aquest cos planetari, tan ric en aigua que encara conté més que el nostre propi planeta. Llegiu-lo en català:

www.enciclopedia.cat/divulcat/Cer...
September 11, 2025 at 11:50 AM
joseptrigo.bsky.social
Our astronomical association #AstroMontseny organized a #LunarEclipse public observation at Caldes d'Estrac, Barcelona, #Catalonia. We were just in front of the sea, but clouds covered most of the totality, but I made quite a lot of images through the 10 cm Schmidt Right f:4 camera on Sony A 6000 🤩
September 8, 2025 at 5:27 PM
joseptrigo.bsky.social
5) YOU CAN READ MORE DETAILS and visit the museum: www.naturkundemuseum-bw.de/en/research/...
September 3, 2025 at 9:50 AM
joseptrigo.bsky.social
4) AN AMAZING DISCOVERY occurred casually at the Steinheim Meteor Crater Museum when they discovered a cm-sized piece of the projectile inserted into a large shatter cone in limestone. They identified the projectile excavating the crater as a stony-iron disrupted #pallasite
September 3, 2025 at 9:48 AM
joseptrigo.bsky.social
3) THE UPLIFT HILL near the crater center is consequence of the magnitude of the impact in which the central part rebounds shortly after the giant asteroid impact at hypervelocity. It is formed by an impact breccia: a rock strongly fractured and shocked with many types of clasts
September 3, 2025 at 9:46 AM
joseptrigo.bsky.social
2) SHATTER CONES made from #Jurasic limestone are common in a part of the crater. They are clear evidence of an extremely fast and powerful shock wave passing through the rocks in the area, deforming them in the characteristic way in which we can recover them nowadays 👇
September 3, 2025 at 9:44 AM
joseptrigo.bsky.social
AT #STEINHEIM IMPACT CRATER studying the evidence of the giant asteroid impact event which excavated this 3.8 km size structure 15 million years ago. A small threat just describing yesterday adventure with @EAIastrobiology colleagues searching for breccias & shatter cones in the area
September 3, 2025 at 9:34 AM
joseptrigo.bsky.social
The Sun always magnificent during
#Sunrise. Imaged today at 5h02 UTC from #Benicàssim, #Castelló, #PaísValencià
#astrophotography
#planetsci
August 4, 2025 at 2:19 PM
joseptrigo.bsky.social
ALMOST FIRST QUARTER #MOON TAKEN YESTERDAY before setting imaged from #MontsenyObservatory, #Catalonia. 1/10 s with good seeing with the Schmidt-Right camera over Sony A6000. Any colour treatment, just as it was captured. Look at the mountain details in the limb! 🤩🌛
#BackToTheMoon
#PlanetarySciences
August 1, 2025 at 1:23 PM