# How can I observe Sgr A* with itelescope.net

I've been experimenting with itelescope.net and tried to observe Sgr A*.

I was wondering if there are any suggestions how I can best observe the surrounding stars.

The published images you have seen were taken by large telescopes working with adaptive optics in the near-infrared (wavelengths longer than 1.5 $$\mu$$m). At these longer wavelengths the extinction caused by dust is only 2-3 magnitudes.
• @Nickpick It is still an optical CCD and as such has no sensitivity at wavelengths beyond the 1.1 $\mu$m that is required for a photon to excite an electron across the Si band gap. With this CCD/instrument the best you could do is observe through the broad band I filter, but the extinction to the GC is still about 15 magnitudes at this wavelength. – Rob Jeffries Aug 30 '19 at 10:02