The second point in this asterism is anchored by Altair, the magnitude 0.8 alpha star of Aquila. It lies about 19.7° southeast (to the lower right) of Albireo as the birds climb in the eastern sky.

Asterism reminds me of an art CD-ROM from the 1990s, when CD-ROMs were considered “new media” and had their own section in book and software outlets – and if it had been released as such, would ...