Teutsch 16 is listed as an open star cluster in SIMBAD, but I could not find any further information about distance, magnitude or brightness.
The apparent extent is given as 3-4' (arcminutes).
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The star cluster "Teutsch 16" appears quite faint in my 20 inch telescope and is only clearly visible at a magnification of 270x. It appears oval
with an irregular shape. There are about 20-25 faint single stars with 13...14mag and below. The stars are not evenly distributed, but there are
star-poor regions in between. The background appears slightly brighter.