Dominique Boutigny
@alvindediaspar.bsky.social
Researcher at CNRS-IN2P3 Laboratoire d'Annecy de Physique des Particules
Work on Vera C. Rubin Observatory and Dark Energy Science Collaboration (DESC)
Also amateur astronomer when the sky is clear
Work on Vera C. Rubin Observatory and Dark Energy Science Collaboration (DESC)
Also amateur astronomer when the sky is clear
In France, the Moon was already totally eclipsed at moonrise making it difficult to spot in the twilight glow.
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September 7, 2025 at 10:03 PM
In France, the Moon was already totally eclipsed at moonrise making it difficult to spot in the twilight glow.
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The @vrubinobs.bsky.social has a seismometer inside the pier which is supporting the telescope. Out of curiosity I had a look at the data after the mag 8.8 earthquake that occurred in Kamchatka on July 29th and to my surprise I got the following !
August 1, 2025 at 4:08 PM
The @vrubinobs.bsky.social has a seismometer inside the pier which is supporting the telescope. Out of curiosity I had a look at the data after the mag 8.8 earthquake that occurred in Kamchatka on July 29th and to my surprise I got the following !
Yes, have a look to page 30
July 22, 2025 at 2:33 PM
Yes, have a look to page 30
That's all I could get today from the solar eclipse through the clouds in Haute-Savoie. There is a sunspot near the edge at 10 o'clock.
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March 29, 2025 at 2:01 PM
That's all I could get today from the solar eclipse through the clouds in Haute-Savoie. There is a sunspot near the edge at 10 o'clock.
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These rectangular pads are the permanent magnets of the linear motor drives of the Vera C. Rubin Observatory Telescope Mount which is able to point toward any celestial position with a very high speed (up to 10.5 deg/s in azimuth).
@vrubinobs.bsky.social @lsst-france.bsky.social
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@vrubinobs.bsky.social @lsst-france.bsky.social
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February 21, 2025 at 5:47 PM
These rectangular pads are the permanent magnets of the linear motor drives of the Vera C. Rubin Observatory Telescope Mount which is able to point toward any celestial position with a very high speed (up to 10.5 deg/s in azimuth).
@vrubinobs.bsky.social @lsst-france.bsky.social
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@vrubinobs.bsky.social @lsst-france.bsky.social
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We had a 3 day workshop at @ccin2p3.bsky.social to discuss where we are and what remains to be done in order to process @vrubinobs.bsky.social data in the 3 data facilities in the US, France and UK.
A good opportunity to have a look to the CC-IN2P3 computer room #nostalgia
A good opportunity to have a look to the CC-IN2P3 computer room #nostalgia
February 14, 2025 at 11:24 AM
We had a 3 day workshop at @ccin2p3.bsky.social to discuss where we are and what remains to be done in order to process @vrubinobs.bsky.social data in the 3 data facilities in the US, France and UK.
A good opportunity to have a look to the CC-IN2P3 computer room #nostalgia
A good opportunity to have a look to the CC-IN2P3 computer room #nostalgia
Looking at my photo from Chile I find this good example of wind erosion. We were around 4500 m above sea level in the Atacama Altiplano close to the border between Chile and Argentina.
January 8, 2025 at 4:46 PM
Looking at my photo from Chile I find this good example of wind erosion. We were around 4500 m above sea level in the Atacama Altiplano close to the border between Chile and Argentina.
I did a few tests of an APN Sony A7s + Samyang 135mm f2 and an astro duo narrowband filter (enhancing Halpha and OIII lines).
Here is the result on the Orion region with the Orion nebula, the Horse Head, the Flame and a part of the Barnard's Loop.
This is 33x30s stacked with Siril 🔭 🧪
Here is the result on the Orion region with the Orion nebula, the Horse Head, the Flame and a part of the Barnard's Loop.
This is 33x30s stacked with Siril 🔭 🧪
January 2, 2025 at 5:28 PM
I did a few tests of an APN Sony A7s + Samyang 135mm f2 and an astro duo narrowband filter (enhancing Halpha and OIII lines).
Here is the result on the Orion region with the Orion nebula, the Horse Head, the Flame and a part of the Barnard's Loop.
This is 33x30s stacked with Siril 🔭 🧪
Here is the result on the Orion region with the Orion nebula, the Horse Head, the Flame and a part of the Barnard's Loop.
This is 33x30s stacked with Siril 🔭 🧪
The partial eclipse of the Moon 2 days ago from La Serena (Chile).
Shot with a bridge camera SONY RX10 and its super zoom. I love this camera 📷
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Shot with a bridge camera SONY RX10 and its super zoom. I love this camera 📷
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September 19, 2024 at 3:02 PM
The partial eclipse of the Moon 2 days ago from La Serena (Chile).
Shot with a bridge camera SONY RX10 and its super zoom. I love this camera 📷
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Shot with a bridge camera SONY RX10 and its super zoom. I love this camera 📷
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From Chile...toward the galactic center... 🔭
August 28, 2024 at 3:02 AM
From Chile...toward the galactic center... 🔭
Fun fact: the system supporting the
@vrubinobs.bsky.social secondary mirror is an active component designed to compensate any vibration in order to keep the mirror in position. And it is so sensitive that it is acting like a seismometer.
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@vrubinobs.bsky.social secondary mirror is an active component designed to compensate any vibration in order to keep the mirror in position. And it is so sensitive that it is acting like a seismometer.
🔭
August 27, 2024 at 6:14 PM
Fun fact: the system supporting the
@vrubinobs.bsky.social secondary mirror is an active component designed to compensate any vibration in order to keep the mirror in position. And it is so sensitive that it is acting like a seismometer.
🔭
@vrubinobs.bsky.social secondary mirror is an active component designed to compensate any vibration in order to keep the mirror in position. And it is so sensitive that it is acting like a seismometer.
🔭
The sky is not always clear above @vrubinobs.bsky.social on Cerro Pachón but whatever the weather, the landscape is always stunning
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August 21, 2024 at 1:44 AM
The sky is not always clear above @vrubinobs.bsky.social on Cerro Pachón but whatever the weather, the landscape is always stunning
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Yesterday there was a lot of haze but I could see the Sun through it, so I decided to try to use the haze as a solar filter. I was surprised to get so many sunspots with 1 single shot !
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August 19, 2024 at 2:48 AM
Yesterday there was a lot of haze but I could see the Sun through it, so I decided to try to use the haze as a solar filter. I was surprised to get so many sunspots with 1 single shot !
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The sky in Chile is something you can't even imagine until you see it with your own eyes. I was in the valley of Rio Hurtado this week-end and this is what I had right above my head.
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August 13, 2024 at 3:44 AM
The sky in Chile is something you can't even imagine until you see it with your own eyes. I was in the valley of Rio Hurtado this week-end and this is what I had right above my head.
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The enormous sunspot AR3780 was easily visible at sunset today. Another group of sunspots, not visible in this picture, released a powerful X1.3 flare yesterday that may triggers auroras.
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August 9, 2024 at 11:42 PM
The enormous sunspot AR3780 was easily visible at sunset today. Another group of sunspots, not visible in this picture, released a powerful X1.3 flare yesterday that may triggers auroras.
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It is difficult to imagine it but the
@VRubinObs
is a huge 10 story-building. Here is a view of the 3rd level. On the left we see the primary/tertiary mirror on its support cell and protected by the cover of the coating chamber.
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@VRubinObs
is a huge 10 story-building. Here is a view of the 3rd level. On the left we see the primary/tertiary mirror on its support cell and protected by the cover of the coating chamber.
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August 9, 2024 at 6:31 PM
It is difficult to imagine it but the
@VRubinObs
is a huge 10 story-building. Here is a view of the 3rd level. On the left we see the primary/tertiary mirror on its support cell and protected by the cover of the coating chamber.
🔭
@VRubinObs
is a huge 10 story-building. Here is a view of the 3rd level. On the left we see the primary/tertiary mirror on its support cell and protected by the cover of the coating chamber.
🔭
People @vrubinobs.bsky.social are busy installing the actuators inside the mirror cell supporting the 8.4 m mirror. These actuators maintain the mirror at its exact position and compensate for gravity forces when the telescope mount is moving.
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July 31, 2024 at 3:25 PM
People @vrubinobs.bsky.social are busy installing the actuators inside the mirror cell supporting the 8.4 m mirror. These actuators maintain the mirror at its exact position and compensate for gravity forces when the telescope mount is moving.
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Here is T CrB the last time I shot it with my telescope, CCD camera and a Sloan i' filter.
May 8, 2024 at 2:36 PM
Here is T CrB the last time I shot it with my telescope, CCD camera and a Sloan i' filter.
Just received this book on Fritz Zwicky. Among other things, his reasoning about the Coma galaxy cluster, leading to the evidence of the existence of dark matter, has always fascinated me !
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April 29, 2024 at 12:14 PM
Just received this book on Fritz Zwicky. Among other things, his reasoning about the Coma galaxy cluster, leading to the evidence of the existence of dark matter, has always fascinated me !
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The view from my house is not too bad ;-)
April 25, 2024 at 6:26 PM
The view from my house is not too bad ;-)
T Coronae Borealis (T CrB) is a symbiotic recurrent nova expected to outburst within the next 6 months. Hoping to record this event, I did some preliminary observations to measure its magnitude before the outburst. Here is an annotated image I took on March with a Sloan i filter.
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April 10, 2024 at 5:06 PM
T Coronae Borealis (T CrB) is a symbiotic recurrent nova expected to outburst within the next 6 months. Hoping to record this event, I did some preliminary observations to measure its magnitude before the outburst. Here is an annotated image I took on March with a Sloan i filter.
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Je donne une conférence sur la cosmologie jeudi 21 mars à Villeurbanne
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March 15, 2024 at 6:24 PM
Je donne une conférence sur la cosmologie jeudi 21 mars à Villeurbanne
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Le 13 mars, dans le cadre des "Mercredis du LAPP", je donnerai une conférence sur le thème du big-bang et de l'évolution de l'univers. La conférence sera précédée par une visite de l'espace de découverte Eutopia. C'est gratuit et ouvert à tout le monde.
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March 8, 2024 at 10:44 AM
Le 13 mars, dans le cadre des "Mercredis du LAPP", je donnerai une conférence sur le thème du big-bang et de l'évolution de l'univers. La conférence sera précédée par une visite de l'espace de découverte Eutopia. C'est gratuit et ouvert à tout le monde.
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Last week I was in California and was lucky to see this Great Blue Heron catching a gopher (the gopher was less lucky though...). It was then able to swallow it in 1 piece... Gloup !
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February 14, 2024 at 10:50 PM
Last week I was in California and was lucky to see this Great Blue Heron catching a gopher (the gopher was less lucky though...). It was then able to swallow it in 1 piece... Gloup !
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