Still in Chile, and we heard today that the VLT survey telescope has just started to produce some results with its vast 238 mega-pixel camera. This imaging system is located next to the VLT scopes we saw in the video in my previous post.
The VLT suvey telescope is going to undertake 3 major surveys overs the next 5 years resulting in a catalogue of over 500 million objects. Compare that to your average amateur GOTO telescope with a catalogue of about 50,000 objects!
This photo shows the camera itself - looks to be the size of an armchair. Slightly bigger than you average DSLR camera! It weighs in at around 770kg and contains 32 separate CCD sensors making up it huge total pixelage.
First Images from the VLT Survey Telescope
The 2.6 metre aperture ESO telescope has a staggering 238 mega-pixel camera giving something like a 1 degree. Pretty amazing.
The VLT suvey telescope is going to undertake 3 major surveys overs the next 5 years resulting in a catalogue of over 500 million objects. Compare that to your average amateur GOTO telescope with a catalogue of about 50,000 objects!
This photo shows the camera itself - looks to be the size of an armchair. Slightly bigger than you average DSLR camera! It weighs in at around 770kg and contains 32 separate CCD sensors making up it huge total pixelage.
First Images from the VLT Survey Telescope
The 2.6 metre aperture ESO telescope has a staggering 238 mega-pixel camera giving something like a 1 degree. Pretty amazing.
I really enjoyed this video of a day and night cycle over the very large telescope.
The Atacama Desert plateau in South America has some of the finest conditions for astronomy on the planet. Only the summits of Hawaii and the polar plateau in Antarctica approach it. Therefore astronomers have built several telescopes in this region to take advantage of the perfect skies.
The ESO Very Large Telescope (VLT) is unsurprisingly one of the larger telescopes. Until the 30 metre class scopes start coming on line, the four 8 metre class telescopes of the VLT is one of the most powerful instruments on the planet.
The Atacama Desert plateau in South America has some of the finest conditions for astronomy on the planet. Only the summits of Hawaii and the polar plateau in Antarctica approach it. Therefore astronomers have built several telescopes in this region to take advantage of the perfect skies.
The ESO Very Large Telescope (VLT) is unsurprisingly one of the larger telescopes. Until the 30 metre class scopes start coming on line, the four 8 metre class telescopes of the VLT is one of the most powerful instruments on the planet.
The BBC new website as a report today about bringing UK clocks into line with the rest of Europe. This would result in darker mornings and longer, lighter evenings. Bad news for Astronomers.
A day late, but never mind - best wishes to all for the New Year.
Here's hoping that 2011 brings some long clear moonless nights - these last 3 months have been very poor for astrophotography.
Do we have any New Year's resolutions? I doubt it - I'm not very good at such things, but let us at least resolve to take advantage of any breaks in the weather that come our way.
Here's hoping that 2011 brings some long clear moonless nights - these last 3 months have been very poor for astrophotography.
Do we have any New Year's resolutions? I doubt it - I'm not very good at such things, but let us at least resolve to take advantage of any breaks in the weather that come our way.
The last few days has seen every type of weather. Rain, heavy snow, mist, fog and intense cold. However, astronomy weather has been in short supply for a couple of months.
We suffer a lot of pain in the astro-imaging hobby. Bad luck and tired fingers causes numerous problems. Problems in this business quickly means wasted imaging time. Whilst I like to whinge and complain as much as the next man, I always remember to thank the astronomy gods when I have a good problem free run.
This is a purely personal rant. All astronomers need their egos stroking... however, constructive criticism is infinitely more valuable than a three word compliment....
The old classic Meade LX200 is a fine telescope, but has that one major drawback of any SCT telescope: A fork mount Alt/Az mount. Whilst this is quick and easy for visual observing, it makes decent astrophotography almost impossible. You need some kind of adjustable wedge to allow the scope to be mounted up at a 50 degree (or whatever your latitude) angle.
Because of the mass of the LX200, this needs to be a sturdy bit of engineering. Most commercial SCT telescope wedges fit into two categories. They are either flimsy and floppy and downright dangerous (i.e. useless) or they are well made and prohibitively expensive.
Of course, a homemade wedge can solve both these problems at once, and have some fun. Read the rest of the article to find out more.
Because of the mass of the LX200, this needs to be a sturdy bit of engineering. Most commercial SCT telescope wedges fit into two categories. They are either flimsy and floppy and downright dangerous (i.e. useless) or they are well made and prohibitively expensive.
Of course, a homemade wedge can solve both these problems at once, and have some fun. Read the rest of the article to find out more.
I've not posted in this blog since 2007. Actually, I've not really produced any decent images since late 2007. Only after six months of phaffing about have I started to reach the standards I got to three years ago. For example, I'm quite pleased with my recent pop at the North American Nebula .
So what happened?
So what happened?
We choose to do this, and do the other things,not because they are easy, but because they are hard.
Some types of astrophotography are easier to do than others. Narrowband work is one of the tricker things. Why do we do narrowband astronomy?
Some types of astrophotography are easier to do than others. Narrowband work is one of the tricker things. Why do we do narrowband astronomy?
