Tagged Questions
6
votes
2answers
105 views
How big of a telescope to view Gliese 581g in great detail?
I've always been interested in mega sized telescopes and how big they would have to be to see exoplanets in great detail. So, Gliese 581g is 22 light years away. Could we build a telescope in space ...
4
votes
3answers
274 views
Is it possible to take a picture of a star?
In this question I am not considering the sun, but only other stars.
Stars are big, but they are also far away.
https://en.wikipedia.org/wiki/Star
The nearest star to the Earth, apart from the ...
6
votes
1answer
117 views
Why is the Hubble Space telescope able to see farthest in the universe?
What determines how far a telescope can see in the universe? How does recording data for a very long time (~10 years) help? If we could build a telescope which work at microwave region, will it be a ...
3
votes
1answer
126 views
Error analysis of flux from telescope-CCD setup (photometric calibration)
I am doing photometric calibration of a telescope and am trying to work out the errors on the flux that I measure. I have attempted to work out the errors due to the process of removing bias, dark ...
3
votes
2answers
102 views
The Bahtinov focusing mask
I'm looking for a webpage or a book or reference that might give me a better (and hopefully more scientific) understanding of how the Bahtinov mask works (which I understand to be the same as ...
3
votes
2answers
39 views
Particular targets of high angular resolution infrared telescopes
I work in the field of infrared interferometry, specifically instrumentation.
As such, I need to be aware of the science goals of such an instrument. Is there a quick list of important and ...
6
votes
2answers
91 views
If you focus in on one image, is combining two telescopes really equivalent to a larger mirror?
Have a look at this example:
In addition, the Keck I and Keck II telescopes can work together as the Keck Interferometer. The 85-metre (279 ft) separation between the two telescopes gives them the ...
4
votes
3answers
63 views
How long would it take to scan the visible universe for unique signals?
The article Amazing rays as star succumbs to dark side talks about a very large black hole swallowing up a star. The report goes on to say that the only reason it was discovered was because it shot ...
8
votes
1answer
32 views
How do I use this 'Horizon Observatory'?
Just around the corner, we have one of these:
It's at the Halde Hoheward (article in the German wikipedia), and it's called a 'Horizon Observatory' by the people who built it.
How does it work ...
10
votes
2answers
405 views
Observing Jupiter's non-Galilean moons
What strength of telescope is required to observe some of the non-Galilean moons of Jupiter?
My current telescope at 50 magnification resolves the Galilean moons well, but I'm guessing it's far ...
7
votes
6answers
487 views
Can any telescope be used for solar observing?
Can any telescope, such as a 8" reflector, that is normally used at night to look at planets be used or adapted for solar observing?
What kind of adapters or filters are required or is it better to ...
