value unc_up unc_lo author ref method 17.50 3.500 3.500 Ali-Lagoa 2018A&A...612A..85A NEATM 18.66 4.360 4.360 Nugent 2016AJ....152...63N NEATM 19.88 0.320 0.320 Masiero 2014ApJ...791..121M NEATM 21.99 0.300 0.300 Masiero 2012ApJ...759L...8M NEATM 22.14 4.430 4.430 Ali-Lagoa 2018A&A...612A..85A NEATM 22.30 0.197 0.197 Masiero 2011ApJ...741...68M NEATM 22.77 0.880 0.880 Usui 2011PASJ...63.1117U NEATM