# Tag Info

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### Method to get data from NED IPAC and NVSS, without manually giving RA/dec input

Unfortunately although a lot of astronomy image/catalog services allow uploading a file of object names or coordinates to query, it seems the NVSS postage stamp server is not one of them. The only way ...
• 7,170

### In terms of results, how similar is a bunch of telescopes across the globe to an Earth-sized telescope?

Aside from trying to phase-sync optical scopes across such large distances, the problem is one of spatial frequency filtering. If you look thru any decent book on optics (I highly recommend Smith's ...
• 3,578
In regards of resolution a virtual telescope acts identical to a normal telescope: size matters: More accurately, the optic's diameter $D$ and the wavelength $\lambda$ determine the resolution or ...