Iridium 68 Flare from MMA1 (Right antenna)
17h30m48s Magnitude=-6.7mag
Azimuth=200.5° SSW altitude= 34.7° in constellation Cetus
Flare angle=0.03°
Flare center line, closest point →MapIt: Longitude=1.748°W Latitude=+53.069° (WGS84) Distance=0.5 km Azimuth=268.5° W Peak Magnitude=-6.8mag
Satellite above: longitude=5.8°W latitude=+45.3° height above Earth=783.5 km distance to satellite=1246.2 km
Altitude of Sun=-3.8°
ISS
Appears 17h33m50s 2.0mag az:222.0° SW horizon
Culmination 17h38m51s -2.6mag az:151.1° SSE h:25.5°
distance: 847.0km height above Earth: 407.2km elevation of Sun: -5°
Disappears 17h42m26s -1.5mag az: 87.1° E h:6.1°
ISS
Appears 19h09m39s 2.4mag az:254.4° WSW horizon
Culmination 19h14m58s -4.0mag az:170.5° S h:61.9°
distance: 459.3km height above Earth: 409.0km elevation of Sun: -19°
Disappears 19h15m04s -4.1mag az:159.2° SSE h:61.5°
Solar Eclipse Calendar for 11 February
February 11, 1868 Death of Jean Bernard Leon Foucault (1819-1868), French physicist. Photographed the sun and measured the speed of light together with (Armand) Hippolyte Louis Fizeau (1819-1896).
February 11, 1988 Minor planet (6001) Thales 1988 CP2. Discovered 1988 February 11 by E. W. Elst at La Silla. Named for the famous Greek philosopher Thales of Miletus (c.625-547 B.C.). None of Thales' writings has come down to us, but from Aristoteles {see planet (6123)} we know that he was the first to suggest a single substratum (water) for the Universe. The correct prediction of the solar eclipse of -584 May 28 contributed considerably to his reputation as an astronomer. Thales' significance, however, lies in the fact that he attempted to explain natural phenomena by causes within nature itself, rather than by caprices of anthropomorphic gods. He must be credited with at least five important geometrical theorems. Thales is also honored by a lunar crater.
February 11, 2010 The Solar Dynamics Observatory (SDO) is a NASA mission which will observe the Sun for over five years. Launched on February 11, 2010, the observatory is part of the Living With a Star (LWS) program. The goal of the LWS program is to develop the scientific understanding necessary to effectively address those aspects of the connected Sun–Earth system directly affecting life and society.