Different catalog, different result...
http://vizier.u-strasbg.fr/viz-bin/VizieR-S?HIP%2027989 and even different in TYC http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=+I%2F239%2Ftyc_main&-from=nav&-nav=cat%3AI%2F311%26cat%3AI%2F239%26tab%3A%7BI%2F239%2Fhp_notes%7D%26key%3Asource%3D1311%2Fhip2%26key%3Asource%3D1239%2Fhip_main%26HTTPPRM%3A%26-out.add%3D.%26HIP%3D27989%26-go+%25%23Sesame%23%25%26
Different catalog, different result...
http:// vizier. u-strasbg. fr/viz- bin/VizieR- S?HIP%2027989 vizier. u-strasbg. fr/viz- bin/VizieR- 4?-source= +I%2F239% 2Ftyc_main& -from=nav& -nav=cat% 3AI%2F311% 26cat%3AI% 2F239%26tab% 3A%7BI% 2F239%2Fhp_ notes%7D% 26key%3Asource% 3D1311% 2Fhip2% 26key%3Asource% 3D1239% 2Fhip_main% 26HTTPPRM% 3A%26-out. add%3D. %26HIP% 3D27989% 26-go+% 25%23Sesame% 23%25%26
and even different in TYC
http://