Do these three items in blue indicate a blue shift indicating they are moving towards us, or is the colouration meaningless?
by Budgieye moderator
yes, the colour is an artifact. Any measured blueshifts are not noticeable by colour and have to be measured with spectral charts.
see Even closer? z less than 0.000 The blueshift galaxy thread http://www.galaxyzooforum.org/index.php?topic=279890.0