The Pleiades star cluster (M45)
The Pleiades would "flee mighty Orion and plunge into the misty deep" as they set in the West, which they would begin to do just before dawn during October–November.
Sirius, the brightest star in the night sky.
Sirius A is about twice as massive as our Sun and has an absolute visual magnitude of +1.42. It is 25 times more luminous than the Sun, but has a significantly lower luminosity than other bright stars such as Canopus or Rigel.
Witch Head Nebula - IC 2118
The molecular clouds of IC 2118 aka The Witch Head Nebula eliminated by Rigel.