Tuesday, 26 October 2010

Saturn and Moons - Dione (right) & Tethys (left)



Saturn and Moons - Dione (right) & Tethys (left):

Image: from flickr by Ethan T. Allen (cc)
Tags: Dione - Moons - Planet - Saturn - Tethys
Posted by ALCHEssMIST - Alchemipedia - Cetacographer - Nirvana - Tags alliance.

Moon Photo


Moon Facts:
  • Earth's only natural satellite.
  • Quarter the diameter of Earth.
  • 1/81 of the mass of the Earth.
  • The moon is in synchronous rotation with Earth & always shows the same face.
  • It is the brightest object in the sky after the Sun.
  • The Moon's gravitational influence produces the ocean tides.
  • The Moon's appearance in the sky is the same size as the Sun which means that the Moon covers the Sun precisely during total solar eclipses.
  • The moon is thought to have formed ~ 4.5 billion years ago in a giant impact event involving Earth.
  • The Moon remains, under the Outer Space Treaty which means it is free to all nations to explore for peaceful purposes.
Moon Landings:
  • There have been 6 manned lunar landings of the moon between 1969 & 1972.
  • The first manned moon landing was Apollo 11 in 1969.
Image: from TinyPic.com.
Tags: Earth - Gravitation - Moon - Moon Landing - Ocean Tides - Outer Space Treaty - Satellite - Solar Eclipse
Posted by ALCHEssMIST - Alchemipedia - Cetacographer - Nirvana - Tags alliance.

Tuesday, 12 October 2010

Solar System Planet Sizes - Largest To Smallest


Planet Sizes (Largest To Smallest):
  • Jupiter - (diameter = 142,800 km)
  • Saturn - (diameter = 120,660 km)
  • Uranus - (diameter = 51,118 km)
  • Neptune - (diameter -= 49,528 km)
  • Earth - (diameter = 12,756 km)
  • Venus - (diameter = 12,104 km)
  • Mars - (diameter = 6787 km)
  • Mercury - (diameter = 4879.4 km)
  • Pluto (dwarf planet) - (diameter = 2300 km)
See Related Posts:

Image: from Wikipedia, Farry
Tags: Earth - Jupiter - Mars - Mercury - Neptune - Planet - Pluto - Saturn - Solar System - Uranus - Venus
Posted by ALCHEssMIST - Alchemipedia - Cetacographer - Nirvana - Tags alliance.

Wednesday, 16 June 2010

Solar Eclipse Astrophotography (Solar System)



Solar Eclipse

Image from TinyPic.com

Tags: Astrophotography - Eclipse - Solar Eclipse - Solar System

Wednesday, 2 June 2010

Star Formation in the Early Universe (Artist Adolf Schaller)


Artists impression of Star Formation in the Early Universe (less than 1 billion years old) by artist Adolf Schaller.

"The deepest views of the cosmos from the Hubble Space Telescope (HST) yield clues that the very first stars may have burst into the universe as brilliantly and spectacularly as a firework finale."

Preliminary interpretation of the deepest views from the HST suggest that the universe made a significant portion of its stars in a massive firestorm of star birth. This likely happened a few billion years after the "big bang".

Science Credit: NASA and K. Lanzetta (SUNY). Artwork Credit: Adolf Schaller for STScI.
Click on image for larger version (3000 x 2400)
NASA Public Domain

Tags:
Adolf Schaller - Big Bang - Deep Space - Early Universe - HST - Hubble Space Telescope -NASA - Star Birth - Star Formation - Universe


Posted by ALCHEssMIST & Alchemipedia.

Monday, 20 July 2009

Apollo 11 Moon Landing 20 July 1969 - "That's one small step for man, one giant leap for mankind"


Moon Landing Live Transmission:

Today is the 4oth anniversary of the Apollo 11 first manned mission to land on the moon. One of the first truly global events in history.

The 3 historic astronauts on the NASA Apollo 11 mission were:

Neil Armstrong (left) - Michael Collins (center) - Buzz Aldrin (right)

Armstrong followed by Aldrin became the first men to land on the moon, whilst Collins remained in the orbiting Command Module.

After stepping onto the lunar surface Armstrong made the now famous line:
"That's one small step for man, one giant leap for mankind"

ALCHEssMIST Astronomy Blog

A new blog by ALCHEssMIST about Atronomy.