This area looks like a child's painting. It's amazing how something so colourful formed out there on the border of Scorpius and Ophiuchus. It's just 4 x 4 minute pictures through a telephoto lens, looking at an area about the size of the palm of your hand at arm's length. Everything just happened to be in this one place: reflection nebula (top), dark nebula (left), hydrogen emission (right), a red giant (bottom), globular clusters, milky way. Wow! The red giant sitting at the bottom of the picture is Antares and it truly is a huge star. It is 8 HUNDRED times wider than our sun, and about 10 THOUSAND times brighter. It lights up the whole cloud with an orange glow! It is far wider than Mars's orbit. Next to it from our perspective is the globular cluster M4, which of course lies much further away. Personally I like how the star at the right (sigma Scorpii) is blue, yet is surrounded by gas that is fluorescing red. A fainter red emission cloud can be found off the bottom (south) edge of the picture. The maddest thing about this object is that it is REAL. This is a real place, just as real as the chair you are (probably) sitting on as you are reading this. Sure, it is a few hundred light years away and we happen to have a particularly nice line of sight of it, but it consitutes a lot more 'stuff' to the universe than little planet Earth.
Friday 26 August 2011
ρ Ophiuchi
This area looks like a child's painting. It's amazing how something so colourful formed out there on the border of Scorpius and Ophiuchus. It's just 4 x 4 minute pictures through a telephoto lens, looking at an area about the size of the palm of your hand at arm's length. Everything just happened to be in this one place: reflection nebula (top), dark nebula (left), hydrogen emission (right), a red giant (bottom), globular clusters, milky way. Wow! The red giant sitting at the bottom of the picture is Antares and it truly is a huge star. It is 8 HUNDRED times wider than our sun, and about 10 THOUSAND times brighter. It lights up the whole cloud with an orange glow! It is far wider than Mars's orbit. Next to it from our perspective is the globular cluster M4, which of course lies much further away. Personally I like how the star at the right (sigma Scorpii) is blue, yet is surrounded by gas that is fluorescing red. A fainter red emission cloud can be found off the bottom (south) edge of the picture. The maddest thing about this object is that it is REAL. This is a real place, just as real as the chair you are (probably) sitting on as you are reading this. Sure, it is a few hundred light years away and we happen to have a particularly nice line of sight of it, but it consitutes a lot more 'stuff' to the universe than little planet Earth.
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