HolAster : holography and astronomy
February 2018
Back to my Lorraine’s roots after the opal adventure, in Kleindal, a small village near Metz, I launch a new lab for art holography and holograms of astronomical objects. On this website I provide historical documents on the production of Ap-holographie, IDHOL and other labs, starting with Sérimage-holographie in 1977. My Veneto’s origin and relationship lead me to the purchase a nice telescope near Venezia, it is now grounded in a new astronomical observatory close to the holographic table. Moreover, I’ll keep busy the links with my holo-friends and the holography world.
Francesco Mazzero
Welcome!
DCG hologram of a Mezezo Opal. August Muth / The light foundry. 2015.
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“Quand les humains réalisent des hologrammes ils reproduisent la nanostructure des opales précieuses”
f.m.
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Photographies by Francesco unless other mention.
Wollo fire opal with play of color. Size: 17 x 19 mm.
A three lasers hello !
![](http://www.holaster.fr/wp-content/uploads/2023/10/opale-OPTIC-0371b-s-1-1024x752.jpg)
Image of the Sun diffracted by a Mezezo opal. The real image is floating 20 mm above the stone.
![](http://www.holaster.fr/wp-content/uploads/2023/10/opale-optic-0578c-s-1024x702.jpg)
An now the sunset !
![](http://www.holaster.fr/wp-content/uploads/2023/10/JOG-opale-optic-C-s-2-1024x341.jpg)
a : The light of the Sun diffracted by the opal.
b : The sunset diffracted by the same opal.
c : The same sunset diffracted by a reflection hologram*.
*Hologram done by Pascal Gauchet.
![](http://www.holaster.fr/wp-content/uploads/2023/10/collection-wollo1515-s-1024x647.jpg)
![](http://www.holaster.fr/wp-content/uploads/2023/10/wolloROUGHprint-s-1024x1024.jpg)
A rough opal from Wollo. Size 30 mm.
![](http://www.holaster.fr/wp-content/uploads/2023/10/M27-T300-MB-9-septembre-2023-B1h1B2-send-1024x641.jpg)
The planetary nebula Messier 27. Observatory “Sélène” in Kleindal. Photography : Hadrien.
![](http://www.holaster.fr/wp-content/uploads/2023/10/M33-T300-MB-9-septembre-2023-B5-send-1024x672.jpg)
Messier 33, the galaxy in the Triangle. Observatory Sélène in Kleindal. Photo : Hadrien.
![](http://www.holaster.fr/wp-content/uploads/2023/10/boulder-9868N1B1-s-1024x683.jpg)
Boulder opal from Queensland / Australia. Size : 35 mm.
![](http://www.holaster.fr/wp-content/uploads/2023/10/opale-OPTIC-s-1024x1024.jpg)
Nodule of Mezezo opal with “optical activity”.
![](http://www.holaster.fr/wp-content/uploads/2023/10/opale-boulder-araignee0102-s-1024x768.jpg)
Boulder opal “matrix”. Queensland / Australia.
![](http://www.holaster.fr/wp-content/uploads/2023/10/wollo-OPTIC-7685N1B3-s-1024x1024.jpg)
Wollo opal “optic”. The strong diffraction focalize the light above the stone.
![](http://www.holaster.fr/wp-content/uploads/2023/10/wollo-OPTIC-7708N1B-s-1024x1024.jpg)
Light focused on a screen by this opal.
![](http://www.holaster.fr/wp-content/uploads/2023/10/Mezezo-9933N1B1-s-1024x682.jpg)
Patterns of a precious Mezezo opal. Size : 40 mm.