Simone Tranquilli
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localvoid.net
Simone Tranquilli
@localvoid.net
Amateur astronomer and astrophotographer (with quite varying results).
Science, computers and operating systems since childhood.

Mostly a metalhead.

Also on https://mastodon.social/@simotranquilli

Personal website: https://www.localvoid.net
Jupiter, 26 december 2024

Back, after a long pause, with some images of Io transiting on Jupiter.

To see the full album and read the descriptions of each images, follow the link below.

www.localvoid.net/2025/09/14/j...

#astronomy #astrophotography #jupiter #planet
Jupiter, 26 december 2024
Back, after a long pause, with some images of Io transiting on Jupiter. During the imaging session (~ 20:40 UT / ~ 22:30 UT), switching between mono and RGB at different magnifications did allow to sh...
www.localvoid.net
September 14, 2025 at 4:09 PM
The entire solar disk imaged in 3 wavelengths: O-III, Ca-K and H-Alpha.
All the 3 images are the result of a stitching process.
To see the full res, annotated images and technical details, follow the link .

#astronomy #astrophotography #sun #halpha #oiii #cak

www.localvoid.net/2025/05/18/s...
May 18, 2025 at 3:06 PM
Twelve images in total (six in mono color space and their colorized versions).
For full quality images and technical details, follow the link below:

www.localvoid.net/2025/05/12/s...

#astronomy #astrophotography #sun #halpha #sunspot
Solar active regions (H-Alpha), 26 december 2024
Around the center of the solar disk, the large, arc shaped filament between AR 3932, AR 3933, AR 3928 and AR 3927 it's still clearly visible: same for the plages around them. This area has been imaged...
www.localvoid.net
May 13, 2025 at 7:56 PM
Another family portrait of Jupiter and its Galilean Moons.
After a long time I got a nice view of the GRS and the cloud structures around it.

For full res images and details follow the link below:

www.localvoid.net/2025/05/02/j...

#astronomy #astrophotography #jupiter #planet #solarsystem
May 2, 2025 at 9:39 AM
A test to compare the results for improvements in contrast and details of sunspots and faculae.
In addition, an image of some of the main active regions on those days.
Follow the link below to see the technical details.

www.localvoid.net/2025/04/20/s...

#astronomy #astrophotography #sun #sunspot
Solar mosaics in different wavelengths. Experimenting with filters. 25 december 2024
Three images of the solar disk, acquired using three different filters: O-III, Ca-K and the solar ERF, mainly used with the H-Alpha Quark. The idea was to compare the results with the simple white lig...
www.localvoid.net
April 20, 2025 at 3:58 PM
Six images of the Sun in H-Alpha.
During that session, the solar limb didn’t show any relevant prominences, so all the data was focused on the active regions.
Follow the link for the full res images and details.

www.localvoid.net/2025/04/13/t...

#astronomy #astrophotographpy #sun #halpha #sunspot
The Sun in H-Alpha light, 25 december 2024
Six images of the Sun in H-Alpha. During that session, the solar limb didn't show any relevant prominences, so all the data was focused on the active regions. Among them, a nice and large filament flo...
www.localvoid.net
April 13, 2025 at 12:41 PM
Three images of Jupiter, both mono and RGB. Full opensource image processing, with PixInsight replaced by LuckyStackWorker and GIMP. Details in the link below.

www.localvoid.net/2025/04/06/j...

#astronomy #astrophotography #jupiter #opensource
April 6, 2025 at 2:39 PM
Following the O-III and Ca-K images of the Sun, a series of images in H-Alpha light on the first day of the past winter session.

www.localvoid.net/2025/03/29/t...

#sun #halpha #prominence #sunspot
The Sun in H-Alpha light, 24 december 2024
Following the O-III and Ca-K images of the Sun, a series of images in H-Alpha light. Since the introduction of the new equipment, an overall improvement can be appreciated in every image: a better sam...
www.localvoid.net
March 29, 2025 at 7:20 PM
First imaging session after a long pause, introducing some new equipment: mono camera , electronic focuser and new refractor.

#astronomy #astrophotography #sun #oiii #cak #sunspot

www.localvoid.net/2025/03/25/t...
The Sun, Ca-K and O-III light, 24 december 2024
First imaging session after a long pause, introducing some new equipment: mono camera (Apollo - M), electronic focuser (ToupTek AAF) and new refractor (Tecnosky Planet 102 f/11 ED). This session was a...
www.localvoid.net
March 25, 2025 at 10:19 PM
Last session in august 2024, before a long pause until december.

To see the full set of images follow the link

www.localvoid.net/2025/03/23/t...

#astronomy #astrophotography #sun #halpha
The Sun in H-Alpha light , 31 august 2024.
Last session in august 2024, before a long pause until december. The weather conditions were not optimal: the processing of each file did require some extra (and "painful") work, specially to highligh...
www.localvoid.net
March 23, 2025 at 3:32 PM
Last images of the Moon for the month of august 2024, just before the sunlight started to fill the sky.

Details and full resolution images following this link to the album

www.localvoid.net/2025/03/10/w...

#astronomy #astrophotography #moon
March 10, 2025 at 9:39 PM
Jupiter, 31 august 2024

Three images of Jupiter and the galilean moons.

For the acquisition details and the full resolution images follow the link:

www.localvoid.net/2025/03/08/j...

#astronomy #astrophotography #planet #jupiter
March 8, 2025 at 5:00 PM
Two images of the Moon, acquired in the early morning, just before to set up the H-Alpha equipment to image the Sun.

To see the full resolution images follow the link:

www.localvoid.net/2025/03/01/w...

#astronomy #astrophotography #moon
Waning crescent Moon, 30 august 2024
Two images of the Moon, acquired in the early morning, just before to set up the H-Alpha equipment to image the Sun. In the first one, the complete thin waning crescent. Among the main features, the O...
www.localvoid.net
March 2, 2025 at 9:14 AM
Two more images from the recording session on 30 august.
Each image is a mosaic composed by two panels.

www.localvoid.net/2025/02/23/s...

#astronomy #astrophotography #sun #halpha #sunspot
Sun in H-Alpha light, 30 august 2024. Full disk
Two more images from the recording session on 30 august. Each image is a mosaic composed by two panels. The Ha filter was set up to be off-band around the 656.28 nm wavelength, on the +5 and -5 Å. win...
www.localvoid.net
February 23, 2025 at 3:32 PM
Reposted by Simone Tranquilli
Life Hack: Capturing #Astrophotography shots can improve your photography skills and give you stunning images to share. Find out more at http://astropotamus.com/learn
February 20, 2025 at 12:00 PM
The Sun in H-Alpha light, 30 august 2024.

On that day, the main feature was a series of some prominences on the western solar limb.

Follow the link below to see the full resolution images:

www.localvoid.net/2025/02/15/a...

#astronomy #astrophotography #sun #halpha
The Sun in H-Alpha light, 30 august 2024
On that day, the main feature was a series of some prominences, mostly on the western solar limb where, looking at the biggest ones, pareidolia could show a gazelle, a tree and a crab. AR 3807 was pla...
www.localvoid.net
February 16, 2025 at 10:47 AM
A view of some nice features on the solar chromosphere. The last days of august 2024 were quite cloudy and the seeing was probably not the best. The results are not amazing, but still nice.

www.localvoid.net/2025/02/09/a...

#astronomy #astrophotography #sun #halpha
The Sun in H-Alpha light, 29 august 2024
To see the images in full resolution and their acquisition details click on the link to the album . A view of some nice features on the solar chromosphere. The last days of august 2024 were quite clou...
www.localvoid.net
February 10, 2025 at 9:54 PM
The Sun in H-alpha light, 28 august 2024.

Three prominences and some views of the active regions 3799 and 3800.

Follow this link to the gallery to see the images in full resolution and read the complete descriptions .

www.localvoid.net/2025/02/05/a...

#astronomy #astrophotography #sun #halpha
February 5, 2025 at 8:15 PM
Reposted by Simone Tranquilli
This is what Jupiter looks like in infrared.

Furious and vengeful.
January 26, 2025 at 2:05 AM
Plato, Vallis Alpes, Cassini - 26 august 2024.
Stack of the best 1000 frames out of 10000

astrob.in/0js1ey/0/

telescopius.com/pictures/vie...

#astronomy #astrophotography #moon
January 12, 2025 at 3:31 PM

Close to the lunar South Pole - Clavius, 26 august 2024
One of the main craters in the southern quadrant of the Moon: Clavius.

astrob.in/jp6imn/0/

telescopius.com/pictures/vie...

#astronomy #astrophotography #moon
January 12, 2025 at 12:20 PM
Craters on the eastern shores of Mare Nubium, 26 august 2024.

Stack of the best 2000 frames out of 10000

astrob.in/65024j/0/

telescopius.com/pictures/vie...

#astronomy #astrophotography #moon
January 12, 2025 at 11:25 AM
Copernicus, Eratosthenes and Montes Carpatus, 26 august 2024.

astrob.in/1dq14m/0/

telescopius.com/pictures/vie...

Stack of the best 2000 frames out of 10000

#astronomy #astrophotography #moon
January 11, 2025 at 3:06 PM
Reposted by Simone Tranquilli
The skies above Paranal are at risk from a proposed industrial megaproject. 

This would be located in the vicinity of ESO's Observatory. If constructed, it would irreparably impact astronomical observations.

Read more: https://www.eso.org/public/news/eso2501/
🔭 

📷 ESO/P. Horálek
World's darkest and clearest skies at risk from industrial megaproject
On December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.
www.eso.org
January 10, 2025 at 8:00 AM
Mare Frigoris, Mare Imbrium, Copernicus - 26 august 2024

astrob.in/qd0vov/0/

telescopius.com/pictures/vie...

Stack of the best 2000 frames out of 10000

#astronomy #astrophotography #moon
January 9, 2025 at 7:32 PM