A collection of interesting facts about the universe
Michal Levinstein, Israel Astronomical Society
M31 – the most distant bone visible to the naked eye
- The brightest nebula the Carina Nebula in the southern sky at magnitude 1.0
- The brightest planet is Venus or by its Latin name "Venus". Venus reaches a brightness of -4 and is seen as an evening star or a morning star
- The brightest supernova in modern times occurred in 1987 in the Large Magellanic Cloud
- The coldest object in the universe is the Boomerang Nebula in the Unicorn group at a temperature of -272 degrees Celsius
- The most distant object visible to the naked eye M31 - the large Andromeda galaxy visible in the autumn and winter sky from any dark area
- The largest constellation in the sky is the "Hydra" group (Hydra) which covers about 3.16% of the sky
- The smallest constellation in the sky the "Southern Cross" group (Crux Australis) which covers about 0.16% of the sky
- The largest galaxy in the universe The central galaxy in the Abell2029 galaxy cluster located in the Virgo group with a diameter of 5,600,000 light years
- The biggest energy emitter of all is quasar APM08279+5255 in the Sagittarius constellation - which emits energy with a power 4-5 million times the power of the Sun
- The nearest black hole to us is V4641 Sgr which is 1,600 light years away
- The closest nebula to us, the Helix Nebula NGC7293 - is 450 light years away from us
- The closest star to us is Proxima Centauri which is 4.23 light years away from us
- The smallest stars in the universe Neutron stars - a star of this type has a mass similar to the mass of our Sun, but is only 10 km in diameter
The space mysteries series
The Israeli Astronomical Society
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