The issue, as correctly emphasized by Carl Sagan, is the probability of the evolution of high intelligence and an electronic civilization on an inhabited world. Once we have life (and almost surely it will be very different from life on Earth), what is the probability of its developing a lineage with high intelligence? On Earth, among millions of lineages of organisms and perhaps 50 billion speciation events, only one led to high intelligence; this makes me believe in its utter improbability.

/ Ernest Mayr /

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ÚJ! Amennyiben elérhető, a ikonra kattintva magyarul is olvashatod az észlelést.

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By type:

open clusters [67]

globular clusters [14]

diffuse nebulae [3]

dark nebulae [0]

planetary nebulae [27]

variable stars [18]

binary stars [23]

asterisms [2]

galaxies [119]

quasars [1]

planets [2]

minor planets [1]

comets [5]

Sun [0]

Moon [5]

other objects [8]

By catalogue:

Messier 1-50 [20]

Messier 51-110 [18]

NGC 1-1000 [17]

NGC 1001-2000 [21]

NGC 2001-3000 [32]

NGC 3001-4000 [25]

NGC 4001-5000 [18]

NGC 5001-6000 [22]

NGC 6001-7000 [40]

NGC 7001-7840 [35]

IC 1-5386 [1]

other catalogues [71]

uncataloged [10]

[25]

By constellation:

Andromeda Antlia Apus Aquila Aquarius Ara Aries Auriga Boötes Caelum Camelopardalis Capricornus Carina Cassiopeia Centaurus Cepheus Cetus Chamaeleon Circinus Canis Major Canis Minor Cancer Columba Coma Berenices Corona Austrina Corona Borealis Crater Crux Corvus Canes Venatici Cygnus Delphinus Dorado Draco Equuleus Eridanus Fornax Gemini Grus Hercules Horologium Hydra Hydrus Indus Lacerta Leo Lepus Libra Leo Minor Lupus Lynx Lyra Mensa Microscopium Monoceros Musca Norma Octans Ophiuchus Orion Pavo Pegasus Perseus Phoenix Pictor Piscis Austrinus Pisces Puppis Pyxis Reticulum Sculptor Scorpius Scutum Serpens Sextans Sagitta Sagittarius Taurus Telescopium Triangulum Australe Triangulum Tucana Ursa Major Ursa Minor Vela Virgo Volans Vulpecula

Albireo (TVICS) Also known as: Beta Cygni Right ascension: 19h 31m Declination: 28° 0' Constellation: Cygnus Date/time: 2012.08.14 22:30 UT Equipment: 12" f/5 Newtonian FoV: 13' Magnification and filter(s): 250x Seeing: 8/10 Transparency: 4/5 SQM: 21.32 m/as2 Temperature: 6°C Humidity: dry Wind: none Sight: 4 - lots of details, very interesting, unique look Difficulty: 1 - instantly visible, no dark adaptation or averted vision needed Position: 1 - very easy, many bright stars nearby Location: Nádasdladány, Hungary Observer: Ferenc Lovró Description: A very spectacular view, the prime exemplar for colour contrasted binary stars. The primary star is red with a hint of orange while the secondary star is somewhat fainter and light blue. A must see couple that is also the easiest colourful object you can find. Hi-resolution image: [ reversed sketch | original sketch ]

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