comets.
Alpheratz or more commonly known as Alpha Andromedae, is, as the name suggests, in the constellation Andromeda
Hydra is found in the constellation called Phoenix
The Pleiades is found in the constellation Taurus, the Bull.
Canopus can be found the the constellation Carina
Instanly
Gemini
The constellation of Scorpius, commonly called Scorpio, which represents a scorpion.
Alpheratz or more commonly known as Alpha Andromedae, is, as the name suggests, in the constellation Andromeda
Hydra is found in the constellation called Phoenix
The Pleiades is found in the constellation Taurus, the Bull.
Canopus can be found the the constellation Carina
Stars, galaxies, nebulae ... a constellation is just a defined patch of sky, so anything you'd normally find in the sky might be found in a constellation.
The Plough.
Commonly called the Southern Cross.
All of them
Instanly
in a triple-star system in the northern constellation Cygnus, or the swam