NGC3165,3166,3169 in Sextans
Magnitude/Size NGC3165(right)15.0/1.8' NGC3166(center right)10.6/5.2' NGC3169(center left)11.3/4.4'

L;5min×423 ( 2015 / 12 / 15, 19, 2016 / 1 / 5, 29, 30, 2 / 5, 27, 28 ) R;10min×29 G;10min×30 B;10min×29 ( 2015 / 12 / 14, 18 , 2016 / 1 / 12)
21ｃｍ f6.0 Newtonian ST8XME
（星ナビ2016年6月号掲載）