Occasionally, I get a letter from someone who is in 'contact' with aliens. I am invited to ask them anything. And over the year's I've prepared a little list of questions. The aliens are very advanced remember. So I ask things like, 'Please provide a short proof of Fermat's Last Theorem'. I write out the simple theorem equation with the exponents. It's a simulating exercise to think of questions to which no human today knows the answers, but where a correct answer would be recognised as such. It's even more challenging to formulate such questions in fields other than mathematics. Perhaps we should hold a contest and collect the best responses in '10 Questions to Ask an Alien'.

/ Carl Sagan /

Need advice? Want to discuss an observation? Feel free to contact me at flovro gmail*com.

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

Mu UMa (TVICS) Also known as: Mu Ursae Majoris, Tania Australis Right ascension: 10h 23m Declination: 41° 26' Constellation: Ursa Major Date/time: 2014.05.23 21:00 UT Equipment: 12" f/5 Newtonian FoV: 12' Magnification and filter(s): 250x Seeing: 7/10 Transparency: 3/5 SQM: 21.14 m/as2 Temperature: 14°C Humidity: low 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: Interesting, but Mu UMa was in front of me all these years, yet I've never noticed its fantastic colour. It responds to changing magnifications in a very interesting way, and this seem to support my theory that you can see stellar colours much easier with a non-dark adapted eye: with naked eye it's orange, at 71x it is golden, and at 250x it's white. The sketch displays the hue at 71x. Hi-resolution image: [ reversed sketch | original sketch ]

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