The plotting of an ASAS-SN light curve from the Internet is similar to the plotting of an ASAS-3 or ZTF light curve, both of which are explained in detail in this User Guide.  

The Plot light curve from ASAS-SN dialog box consists of two sections: the upper one is labeled Star name, and allows to enter the ASAS-SN name of the star to be plotted (e.g., ASASSN-21go), or the AAVSO VSX name, or the SIMBAD name, or its (J2000.0) RA and Decl coordinates. Both values have to be separated with a semi-colon. RA and Decl need to be in sexagesimal format with values separated by spaces. So, a valid entry would be: 04 59 13.57; -69 35 43.3. Or its (J2000.0) RA and Decl coordinates, expressed in degrees and separated with a semi-colon. Example: 76.80654; -69.595361.

The Search radius field allows to specify the radius of a circular search area centered around the position of Star name. It is expressed in arc minutes.

The fields in the Additional fields section are identical to the ones found in the ASAS-3 and ZTF descriptions.

If multiple objects match the search criteria, Peranso will ask you to select one, from the list of (unique) ASAS-SN object identifiers of each matching object.

Peranso makes use of data provided by the ASAS-SN Photometry Database. See Shappee et al. (2014) and The ASAS-SN Catalog of Variable Stars III: Jayasinghe et al. (2019b).