Dear Friends!
Be with us in this topic for reading the past activities & events in astronomy & space sciences.
Such as successes & failures in missions ,observations ,solving problems & etc.
Thank you
"This date in history"
Dear Friends!
Be with us in this topic for reading the past activities & events in astronomy & space sciences.
Such as successes & failures in missions ,observations ,solving problems & etc.
On This Date in History - February 16
Astronomy & Space Fact:
Hurricane names are chosen from a list selected by the World Meteorological Organization. Each name on the list starts with a different letter; for example, the name of the first hurricane of the season starts with A, the next starts with B, and so on. The letters Q, U, X, Y and Z are not used.
Who Was Born Today?
1514: Rhaticus, [Rheticus], Austrian astronomer/mathematician
1937: Valentin Vasilyevich Bondarenko, cosmonaut
Today in History:
374: 9th recorded perihelion passage of Halley's Comet
Ray Structure - Halley's Comet
NASA/JPL
1961: U.S. satellite Explorer 9 is launched
1965: Pegasus 1 launched to detect micro-meteors
1982: Assembled STS-3 vehicle moves from Vandenberg AFB to launch pad
1994: Clementine - USA Lunar Orbiter - (launched January 25, 1994) spent 70 days (between February 6 and May 5, 1994) in lunar orbit. The official name for Clementine is Deep Space Probe Science Experiment (DSPSE). It was a Department of Defense program used to test new space technology. Clementine was a new design using lightweight structure and propellant systems. Its four cameras mapped the surface of the Moon at 125-250 meters/pixel resolution. Clementine also used a laser to gather altimeter data which will make it possible to generate the first lunar topographic map.
From: About.com
ویرایش توسط stargazer : 02-20-2012 در ساعت 12:38 AM
On This Date in History - February 17
Astronomy & Space Word of The Day
vastitas: Widespread lowlands.
Who Died Today?:
1874: Lambert Adolphe J Quetelet, Belgian astronomer/sociologist, age 77
Today in History:
1959: 1st weather satellite launched, Vanguard 2, 9.8 kg
1965: Ranger 8 - USA Lunar Hard Lander launched. Ranger 8 arrived at the moon on February 20, 1965. It sent back high-resolution pictures until it impacted in Mare Tranquillitatis.
Ranger 8 Lunar Spacecraft. NASA
1966: French satellite Diapason D-1A launch into Earth orbit
1967: Kosmos 140 (Soyuz Test) launches into Earth orbit
1996: NEAR - USA Asteroid Orbiter launched. The main scientific purpose of NEAR (Near Earth Asteroid Rendezvous) is to orbit near Earth asteroid 433 Eros. The spacecraft is scheduled to study the asteroid for one year after entering orbit in February 1999. NEAR imaged Comet Hyakutake in March 1996 and will fly within 1,200 kilometers of asteroid 253 Mathilde on June 27, 1997. This is the first of NASA's Discovery missions.
From: About.com
On This Date in History - February 18
Who Was Born Today?:
1677: Jacques Cassini, French astronomer, rings of Saturn
1930: Theodore C. Freeman, Haverford Penn, capt USAF/astronaut
Who Died Today?:
1966: Grigori Grigoyevich Nelyubov, Russian cosmonaut, age 31
Today in History:
1930: US astronomer Clyde Tombaugh discovers Pluto. Originally considered the ninth planet of our solar system, in August of 2006, the International Astronomical Union (IAU) decided that Pluto is not a planet.
Pluto. NASA
1974: NASA launches Italian satellite San Marcos C-2 (235/843 km)
1977: Space Shuttle above a Boeing 747 goes on it's maiden flight
1979: NASA launches space vehicle S-202
From: About.com
On This Date in History - February 19
Astronomy & Space Word of The Day
weathering: The chemical and physical alteration of materials exposed to the environment on or near the surface of a planetary body.
Who Was Born Today?
1473: Nicolaus Copernicus, Torun, Poland, astronomer, heliocentrism
1932: Joseph P Kerwin, born in Oak Park, Illinois, Capt Med Corps USN/astronaut, Skylab 2
1948: Byron K Lichtenburg, Stroudsburg, Pennsylvania, astronaut, STS 9, STS 45
1952: Rudolfo Neri-Vida, Mexico, PHD/astronaut, STS 23
1956: George David Low, born in Cleveland, Ohio, astronaut, STS 32, STS 43
Today in History:
1970: U.S.S.R. launches Sputnik 52 and Molniya 1-13 communications satellite
1986: U.S.S.R. launches Mir space station into Earth orbit
Discovery seen from Mir - Spacehab module Visible in payload bay
NASA Andy Thomas
From:About.com
On This Date in History - February 21
Astronomy & Space Word of The Day
rotation: The turning or spinning of a body about an axis running through it.
Who Was Born Today
1964: Mark E Kelly, Orange, New Jersey, Lt USN/astronaut
1964: Scott J Kelly, Orange, New Jersey, Lt USN/astronaut
Who Died Today
1938: George Ellery Hale, astronomer
1992: Franc Holden, British astronomer (Binary Stars)
Today in History
1969: 1st launching of heavy N-1 rocket at Baikonur Kazachstan (explodes)
1972: Luna 20 - USSR Lunar Lander launched. Landed on the moon and returned samples to the Earth. Landed on February 21, 1972 at Apollonius highlands located at latitude 3°32' N and longitude 56°33' E. 30 grams of lunar samples were returned to the Earth.
1979: Japan launches Hakucho x-ray satellite and Corsa-B (550/580 km)
1981: NASA launches Comstar D-4
1981: Japan launches Hinotori satellite to study solar flares (580/640 k)
1996: Soyuz TM-23, launched into orbit
From: About.com
زندگیت رو روی یک قاعده بنا کن
نه یک استثناء
On This Date in History - February 21
Astronomy & Space Word of The Day
Accretion Disk : The whirling disk of gas that form around a compact object such as a white dwarf, neutron star or black hole as matter is drawn in.
Who Was Born Today
1796: Adolphe Quetelet, Belgium, mathematician/astronomer/statistician
1952: James Philip Bagian, Philadelphia, MDPE/astronaut, STS 29, STS 40
Today in History
1965: USSR launches Kosmos 57 into earth orbit (Voskhod Test)
1966: USSR launches Kosmos 110 with Veterok and Ugolek, 1st 2-dog crew (See Dogs in Space)
1996: STS 75 (Columbia 19), launches into orbit
From:About.com
زندگیت رو روی یک قاعده بنا کن
نه یک استثناء
On This Date in History - February 23
Astronomy & Space Word of The Day
silicate: A compound containing silicon and oxygen (e.g. olivine). A group of minerals constituting about 95% of the Earth's crust, and containing silicon and oxygen combined with one or more other elements.
Who Was Born Today
1928: Vasily Grigoryevich Lazarev, Siberia U.S.S.R., cosmonaut, Soyuz 12, 18A
1949: Marc Garneau, Quebec City Canada, PhD/astronaut, STS 13, 77
1953: Sallie L Baliunas, astrophysicist
Today in History
1987: Supernova 1987A in LMC 1st seen; 1st naked-eye supernova since 1604
From:About.com
ویرایش توسط stargazer : 02-26-2012 در ساعت 10:32 PM
زندگیت رو روی یک قاعده بنا کن
نه یک استثناء
On This Date in History - February 24
Astronomy & Space Fact
Sailors were the first to use nautical miles. One nautical mile is equal to one minute of latitude. Maps were drawn to follow this standard and world aviation standards still use the nautical mile. A nautical mile is equivalent to 1.1508 miles, or 6,076 feet, in the English measurement system. To convert nautical miles into kilometers multiply the nautical miles by 1.8520.
Who Was Born Today
1931: Lev Vasilyevich Vorobyov, Russia, cosmonaut
Today in History
1949: V-2/WAC-Corporal 1st rocket to outer space, White Sands, NM, 400 km
1969: Mariner 6 - USA Mars Flyby launched. Mariner 6 and 7 took measurements of the surface and atmospheric temperature, surface molecular composition, and pressure of the atmosphere. In addition, over 200 pictures were taken. Mariner 6 is now in a solar orbit.
From:About.com
ویرایش توسط stargazer : 02-26-2012 در ساعت 10:31 PM
زندگیت رو روی یک قاعده بنا کن
نه یک استثناء
On This Date in History - February 25
Astronomy & Space Word of The Day
Doppler Effect: The apparent change in wavelength of sound or light caused by the motion of the source, observer or both.
Who Was Born Today
1723: Christopher Wren, England, astronomer/architect, age 90
Today in History
1979: Soyuz 32 carries 2 cosmonauts to Salyut 6 space station is launched
From:About.com
ویرایش توسط stargazer : 02-26-2012 در ساعت 10:30 PM
زندگیت رو روی یک قاعده بنا کن
نه یک استثناء
On This Date in History - February 26
Astronomy & Space Fact
To communicate with distant spacecraft, NASA's Deep Space Network uses antenna with a diameter of up to 70 meters (230 feet). That is almost as big as a football field.
Who Was Born Today
1952: Mario Runco, Jr., born in Bronx, New York, Lt Cmdr USN/astronaut, STS 44, 54, 77
Who Died Today
Today in History
66: 5th recorded perihelion passage of Halley's Comet
From:About.com
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