Thursday, September 1, 2022

Capturing Io's shadow for the first time




For the first time I was able to capture Io's shadow on Jupiter. This morning the Galilean moon Io was transitioning Jupiter creating a shadow on the planet.

Setting: TAL200K f/8.5, ASI224MC, ADC and Barlowx2
Software: SharpCap4, AS3!, DeNoise AI, CS4.
Preparation: polarallignment using SharpCap4 with ASI290MM and Guidingscope 60x240, 3 star allignment also using ASI290MM and Guidingscope 60x240





Jupiter with Io's Shadow

 


This morning the Galilean moon Io was transitioning planet Jupiter and creating a dark shadow on the planet.
Setting; TAL200K f/8.5 with ASI224MC, Barlow x2 and ADC
Software: SharpCap4, AS3!, CS4


Monday, August 29, 2022

Imaginary - Wiskunde tentoonstelling


In het najaar 2022 en het voorjaar 2023 zal de tentoonstelling over zichtbare en onzichtbare wiskunde "Imaginary" doorheen Vlaanderen trekken. Voor meer informatie zie deze link 




Artemis I launch scrubbed - earliest launch window september 2

 


Artemis I launch has been scrubbed. The earliest next launch window is expected to be september 2nd.

Saturday, August 27, 2022

Following Galilei Galileo footsteps @ Tuscany

This summer I spent my vacation in Tuscany and I took the opportunity to follow Galileo Galilei's footsteps. My first stop was in Pisa, the Birthplace of Galileo. Galileo was born on February 15, 1564. A statue of Galileo can be seen @ Largo Ciro Menotti, just 100m  from scientist's childhood home.

Statue of Galileo in Pisa (credit Pascal Hilkens)


It was in the Duomo di Pisa (the Cathedral of Pisa) that according to Vincenzo Viviani, a young pupil of his and later his biographer, Galileo in 1583, while observing in the Cathedral of Pisa the oscillation of a lamp, had asked ‘whether the times of oscillation between two points, for large, medium and small arcs, were the same. 

Duomo Di Pisa in the Piazza Dei Miracoli (credit Pascal Hilkens)

Next stop was Florence @ the Museo Galileo near the famous Ponte Vecchio.


Outside the Museum and in front of the entrance a gnomon of a giant sundial is installed. 







The museum exposes some very unique pieces of which two original telescopes (1609 & 1610) from Galileo.

Galileo's Telescopes (1609&1610) credit Pascal Hilkens





At the Uffize Gallery (Galleria degli Uffizi), Galileo as a Mathematician can be found on a fresco with tempera retouches by Agnolo Gori made in 1663 at the ceiling of the west corridor, span 74.

Ceiling with Fresco of Galileo (credit Pascal Hilkens) 

In one of the many Uffizi rooms I found a portrait of Galileo Galilei made by the Flemsih painter Justus Sustermans, in 1636.


Galileo by Justus Sustermans - Oil on Canvas at Uffize Gallery (credit Pascal Hilkens)

I finished my tour at the Basilica of Santa Croce in Florence. The remains of Galileo Galilei are located in a marble tomb created by Giulio Foggini. The polychrome marble tomb of Galileo was sculpted between 1734 and 1737. The brown and black marble tomb is flanked by two allegorical sculptures of robed female figures representing Astronomy by Vincenzo Foggini, and Geometry by Girolamo Ticciati. Galileo died on the night of January 8th, 1642.

His body was first placed in a little room below the bell tower of the Basilica and only in 1737 got Galileo his monumental tomb.


Original tomb of Galileo - credit Pascal Hilkens





Galileo monumental tomb - credit Pascal Hilkens

Sculpture of Galileo with below Jupiter and it's four Galilean moons - Credit Pascal Hilkens



Latin text below Galileo's tomb - Credit Pascal Hilkens


English translation of the text below the tomb: 
Galileo Galilei, Florentine patrician, the greatest restorer of Geometry, Astronomy and Philosophy to be compared to none of his era, may rest well in this place. Lived 78 years - Died in 1642.


Basilica Sante Croce, Florence - Credit Pascal Hilkens

Some interesting facts of Sante Croce: not only Galileo is buried in the Basilica but also:

- Niccole Machiavelli
- Michelangelo Buonarotti died on February 18, 1564 - 3 days after Galileo was born
- Florence Nightingale
- Memorial of Enrico Fermi
- Memorial of Guglielmo Marconi
- a cenotaph for Dante


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