Pegasus' or Andromeda's star??

Event Date: April 11th
Time: 5:00 AM

Brief

Our sky is full of asterisms, and some make up simple shapes; we talked about one yesterday, with the Summer Triangle.  A little later, as the sky starts to lighten up, we see another clear the horizon completely: the Great Square of Pegasus.  The square is large, hence the "great" title, at 16ºx13º if measuring the sides anglularly.  It is not as big as the Summer Triangle, which it can be compared to with stick figures in the image.  However, the square is still big enough that in some parts of the sky equal in angular area, as many as three constellations fit.  At this time of year, the square rises in the east-northeast, and becomes high enough to see easily during the twilight sky by month's end.  It has four 2nd-magnitude stars of various distances from us.  Although it is not perfect in square, which would be very coincidental, it is close enough for us to recognize it that way.  The separation between each star is close enough to equal, for us to not call it the great rectangle of Pegasus; that takes too long to say, as it is.

Detailed

  The Great Square's stars' distances range from 99 light years away with Alpheratz, to Algenib's 335 light years away.  The distance of a light year is about 6 trillion miles, or 186,000 miles per second, times about 31.5 million seconds per year.  Notice that I used the word distance and not time measure a light year.  That is, the distance light travels over the course of a year.  Since I will be using the term throughout the entries,  with the shorthand as ly, it is worth keeping that in mind.
   One other thing that I must note, is that although Alpheratz is a star of the square, it is not--I emphasize--a star of Pegasus!  Why?  It is one of a constellation adjacent to Pegasus, marking that character's head, as opposed to the belly of the horse.  See image two, for what I am talking about; that one has the full stick-figure of both Pegasus and Andromeda, the chained maiden (or princess, some call her, as the daughter of King-constellation Cepheus and Queen Cassiopeia).

*click on image to enlarge: courtesy of Starry Night Pro Plus, version 6.4.3, by Simulation Curriculum Corp.

Note: If you click on Andromeda's hyperlink in the previous sentence, the website tells the myth of these characters.
I will mention more on the royal couple tomorrow as I will show both.  Notice below for now, how Andromeda's stick figure seemingly makes a "V" shape outward from head-Alpheratz, to create a female-ish dress--or gown--"skirt shape...which seemingly doesn't have a definite end beyond either her stick figure.
  If you have trouble seeing Andromeda at this hour, with the Sun rising not far east of it, look a little earlier in the morning if the horizon is clear, or try later in the spring with it rising about two hours earlier each month, separating a little more daily from the Sun by angular measurements.