Is there any data on what kind of stars and how many are in Ambartsumian's Knot dwarf Galaxy? Is there a database to refer to?
Thanks in advance
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There are u, g, r, i and z-band photometric measurements of the object, which with a distance estimate (easy, assuming the distance of NGC 3561) will give a reasonable estimate of its stellar mass, and the stellar population making up that mass. The measurements are listed on Simbad, for instance: https://simbad.u-strasbg.fr/simbad/sim-id?Ident=Ambartsumian%27s+Knot&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id
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$\begingroup$ Thank you. Appreciate the response $\endgroup$ Apr 28, 2021 at 21:12