Stellarian, or stellar non-binary individual, is a non-binary gender alignment from the galactian system describing someone who is unaligned, or neutral-aligned. The main idea is that stellarians identify as a gender that is unrelated to masculinity and femininity and/or manhood and womanhood, however they still feel gendered and on a similar "plane" as male and female. There are many different stellarian identities, as there are stars in the sky. This is unlike boötian or singularian, which are a complete lack of alignment.
The stellarian flag was posted on Tumblr on December 5, 2016. The shades of green represent the varying levels in which individuals can experience being stellarian. Yellow represents the non-binary nature of this gender. Black represents those with no gender. Gray represents the varying levels in which individuals can experience gender. The stars in on the flag represent that there are many different stellarian identities, as there are stars in the sky.
The third alternate stellarian flag was designed by now deactivated tumblr user yourfavgoestoactualpride sometime before December 21, 2016.
The stellarian flag without the emblem
An alternate stellarian flag
A similar alternate flag
Another alternate stellarian flag by tumblr user yourfavgoestoactualpride