Mars comparison as it approaches the opposition of 2016

Photographer
David Duarte
Location of photo
Maceió, Alagoas, Brazil
Date/Time of photo
12 April and 14 May
Equipment
Celestron SCT 8", Meade 3x Telextender, Expanse 120 camera
Description
Image comparison of Mars (on scale) taken on 12nd April and 14th May, respectively. The apparent diameters were 13.4" and 17.8". The distance varied from 105 Mkm to 79 Mkm.
Website
http://www.ceaal.org.br/noticias/oposicoes-de-marte-e-saturno-em-2016