Tower of Fantasy has multiple activities that you can complete for rewards.
The rewards that you can obtain are the gold nucleus, black nucleus, and more.
An activity that you can do is to complete the constellation links.
You can do this by finding the smart telescopes in the game and interacting with them.
After you’ve interacted with a smart telescope, you’ll see an incomplete constellation like the Bootes link.
The name of the constellation will be displayed.
You need to complete it to get a reward like a black nucleus.
However, you might not know how to complete a constellation because there are no hints.
In this guide, you’ll learn the location of the Bootes constellation link and how to solve it in Tower of Fantasy.
Bootes constellation link location in Tower of Fantasy

Location: Northwest of Cetus Island (just outside).
Coordinates: -717.3, -973.4.
The smart telescope is at the end of the beach outside of Cetus Island.
How to solve the Bootes constellation link

To solve the Bootes constellation link, you need to form a “kite” pattern.
After you’ve formed the “kite” pattern, it’ll say “Connected”.
You’ll receive 1x Black Nucleus (Proof of Special Order) for completing the puzzle.
Bootes is located between 0° and +60° declination and it’s in the northern sky.
It means “herdsman” or “plowman” in Greek (“ox-driver” or “cow”).
It has the fourth-brightest star called “Arcturus”, the orange giant.
Further reading
How to Solve the Draco Constellation Link in Tower of Fantasy
How to Solve the Taurus Constellation Link in Tower of Fantasy
How to Solve the Pegasus Constellation Link in Tower of Fantasy