Coating and installation of UT1 mirror M3

The tertiary, elliptical and flat mirror (M3) for the UT1 has been coated and is now being installed in its cell. Measurements show excellent reflectivity (91 %) and very little scatter roughness (8 Å). This mirror is placed on top of the M3 Tower that protrudes from the central hole in the primary mirror (M1). It directs the light from the secondary mirror (M2) towards the instruments at the Nasmyth platforms. (Photo obtained on July 30, 1998).

Källa:

ESO

Om bilden

ID:eso9837c
Typ:Foto
Publiceringsdatum:12 augusti 1998
Relaterade pressmeddelanden:eso9837
Storlek:1024 x 768 px

Om objektet

Namn:Mirror, Very Large Telescope
Typ:Unspecified : Technology : Observatory : Telescope
Kategori:Paranal

Bildformat

Stor jpeg
187,0 kB
Skärmstor jpeg
206,2 kB

Skrivbordsunderlägg

1024x768
193,4 kB
1280x1024
364,0 kB
1600x1200
484,3 kB
1920x1200
512,9 kB
2048x1536
619,9 kB