telescopes and moon
DESCRIPTION
World of powerful astronomical telescopes. Includes both operational and those under constructionTRANSCRIPT
TELESCOPES
GAZING THE INFINITY
REFRACTING TELESCOPE
REFLECTING TELESCOPE
2.5m Mt. WILSON
MIRROR
MOUNT PALOMER OBSERVATORY
CALIFORNIA
Housing 5 telescopes
WILSON 60’’
1908
WILSON 100’’1917
HALE 200”/ 5m1949
SPIC AND SPAN
Washing the mirror
Three million light years away…..
2008
SUPER NOVAE
Mt. PALOMER OBSERVATORY
SALT- SAUTH AFRICAN LARGE TELESCOPE
THE PRIDE OF AFRICA
HUBBLE
THE FIRST SPACE TELESCOPE
SPITZER
INFRA RED SPACE TELESCOPE
CHANDRA
AN X RAY TELESCOPE IN SPACE
VERY LARGE ARRAY RADIO
TELESCOPE, NEW MEXICO
Keck observatory, Mauna kea, Hawaii
- Two 10m telescopes
Keck at night
VLT
Four 8m telescopes - Cerro Paranal, Atacama, Chile
Calibration
Making artificial stars by exciting Na atoms
with laser beams
Interior of Antu, the Sun
The Long Haul
Resolution – one milli arc second
Completed in 2006, it is 4 billion times powerful than unaided eyes
ATA (Allen Telescope Array) – An ambitious
project
• When completed, it will have 350 antennae
• Project supported by Paul Allen, co founder, Microsoft corporation
Allen Telescope Array(One Hectare Telescope)
San Francisco, California
Andromeda - in visible light and the radio image
M33 Pinwheel Galaxy
SETI – Search for Extra Terrestrial Intelligence
METI – Messaging to Extra Terrestrial Intelligence
• Physicist Stephen Hawking, suggests that "alerting" extraterrestrial intelligences of our existence is foolhardy
• They may be looking for resources• "It is not obvious that all
extraterrestrial civilizations will be benign” - Nature \
• Better we "lay low".
E ELTEuropean Extremely
Large Telescope
A 42m telescope coming up in Cerro Armazones, Chile
OWL – Overwhelmingly Large Telescope
A 100m Telescope, 1500 times powerful than Hubble
VERITAS – Very Energetic Radiation Imaging Telescope
Array System
gamma ray telescopes
Fermi’s Large Area Telescope
Detected by Fermi’s Large Area Telescope
Vela Pulsar
Pulsar Map by Fermi Telescope
ARECIBO RADIO TELESCOPE (300m)
Largest single dish telescope
Puerto Rico
ToMr. Alien,M 1325,000 l.y
Numbers 1 -10
Atomic No: H, C, N, O, P (DNA)
Formulas for sugars and basesin DNA
The double helix structure of DNA
Human figure, height and the world population
The Solar system
Arecibo dish and its dimension
Quasar (Quasi Stellar Radio Source) – view by Hubble
Quasar- 10 billion light years awayView by Chandra
Quasar starburst in infra red
Antennae galaxies star
burst
NGC 1569 starburst