Alexis Carlotti
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astrogre.bsky.social
Alexis Carlotti
@astrogre.bsky.social
170 followers 110 following 61 posts
Astronomer at IPAG / Grenoble Alpes Univ. - I design instruments to characterize exoplanets // Astronome à l'IPAG / Univ. Grenoble Alpes - Je conçois des instruments pour caractériser des exoplanètes
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astrogre.bsky.social
Lever de Lune sur Belledonne durant l'éclipse du 7 Septembre 2025, vu depuis Grenoble.
September 7, 2025 at 8:11 PM
astrogre.bsky.social
The crescent nebula, observed during a clear night in the mountains, with a seestar S50 (25min integration time).
An image of the crescent nebula, i.e., a gas shell produced by an active star located about 5700 light years from here, and which can be seen in the Cygnus constellation. The gas was ejected by the star and is surrounding it like a bubble. It shows some filament structures and various colors. The mass of the nebula is estimated to be 25 times the mass of the sun.
August 28, 2025 at 6:52 PM
astrogre.bsky.social
En plus de jeter un oeil à la Lune, ce fut l'occasion de regarder quelques galaxies et des nébuleuses (ici M51, M81 et M97, observées quelques minutes chacune).
April 16, 2025 at 3:19 PM
astrogre.bsky.social
Colleagues from IPAG (CNRS/OSUG/UGA) standing up for science, in solidarity with our US colleagues.
@standupforscifr.bsky.social @osug-fr.bsky.social @ugrenoblealpes.bsky.social
16 scientists from IPAG (CNRS; Université Grenoble Alpes) standing up for science in solidarity with US colleagues
March 7, 2025 at 1:08 PM
astrogre.bsky.social
Standing Up for Science, in solidarity with our US colleagues targeted by the Trump administration.
@standupforscifr.bsky.social
A picture of a French scientist holding a 'Stand Up for Sciences' poster to demonstrate his solidarity with his US colleagues in the context of the anti-science, brutal decisions of the Trump administration.
March 7, 2025 at 12:13 PM
astrogre.bsky.social
Début d'une mission à l'Observatoire de Haute Provence pour installer au T152 le spectromètre VIPA (IPAG, @osug-fr.bsky.social @ugrenoblealpes.bsky.social) dans le cadre de @erc.europa.eu EXACT. Ce spectro à haute résolution et haute transmission a été développé pour l'étude d'exoplanètes.
February 10, 2025 at 10:23 PM
astrogre.bsky.social
Ne serait-il pas temps, à quelques heures de la fin de 2024, de poster une jolie photo prise cette année ?
Une photo que vous aimez.
La nébuleuse d’Orion. Une pouponnière d’étoiles qui, de part sa taille, sa luminosité et ses couleurs, est sans doute la plus spectaculaire. Il faut se figurer une sorte de nuage éclairé de l’intérieur par des étoiles et présentant des teintes multiples. ~ Préservons le ciel nocturne, éteignons les lumières ~
December 31, 2024 at 8:17 AM
astrogre.bsky.social
Just finished a run at the Haute-Provence Observatory to prepare for the arrival of the VIPA H-band spectrometer in Feb. 25 thanks to ERC EXACT. It will be coupled with the PAPYRUS AO facility using a single-mode fiber injection unit developed between IPAG, LAM and @onera.bsky.social.
A view of the telescopes at the Haute-Provence Observatory at sunset. The main dome is the one of the T193 telescope, which was used to detect the first exoplanet around a Sun-like star in 1995.
December 13, 2024 at 12:06 PM
astrogre.bsky.social
Bald fleshy monster with a huge jaw and huge, sharp teeth ; Art by Disse86 (DeviantArt)
November 17, 2024 at 1:04 PM
astrogre.bsky.social
Comet C/2023 A3, Grenoble around 8pm. Observed with a Seestar. It’s a pity I could not do any stacking.
Comet C/2023 A3 observed on October 15, 2024 from Grenoble, France
October 15, 2024 at 7:00 PM