The night sky is unreachable to most.  Monks of the Way of the Starwalker were born of the persuit of the stars.  They dedicate their lives to these astral bodies, in the hopes of one day travelling amongst them. ~MonkeyDM from their Secrets of Gravity Magic book soon to be released.

Constellation Footfalls

When  you choose this tradition at 3rd Level, your connection to the stars makes it so you leave constellations behind you in the places you stop.  At the end of each of your turns, or right after using your Step of the Wind ability, you may choose to leave a Starpoint at your current location.  The Starpoint lasts for 1 minute or until you choose to dispel it (no action required).  You can only have 5 Starpoints active at any time, all Starpoints vanish if you attempt to create a 6th.  Once per turn, you may chose to spend 1 Ki point to teleport to any Starpoint that is within 30 feet of you OR within 30 ft of another Starpoint (as long as you are within 30 feel of another Starpoint yourself).  Whenever you teleport to a Starpoint, you gain temporary hit points equal to your Wisdom modifier, as the light surrounds and protects you.

Starstep

By 6th level, you've learned to alter your movements to resemble shooting stars. When you use your Constellation Footfalls or Step of the Wind ability, you may choose to use one of the following abilities:

Flickering Light. You begin to flicker with light and become incorporeal.  Until the end of your turn, you may walk through objects and walls that are up to 1-ft thick and may walk through other creature's spaces.  If you end your turn inside a creature or an object, you take 4d6 force dmg and are forcefully ejected to the nearest empty space.  While incorporeal you have resistance to bludgeoning, piercing, and slashing damage from non-magical attacks.

Shining Beam. You emit a sudden pulse of light.  All hidden and invisible creatures within 15ft of you must succeed on a Constitution saving throw against your Ki save DC or become revealed to all until the end of your turn, as starlight surrounds them.  While revealed in this way, you cannot have disadvantage on attacks against them and you know their exact location.

Celestial Gait

At 11th level, all your moves have become entwined with celestial energy, broadening  your horizons.  Whenever you use your Step of the Wind ability, you can choose to use both the Dash and Disengage action as a single bonus action.

In addition, whenever an ally enters the space of a Starpoint, you may expend your reaction and 1 Ki Point to teleport them to another Starpoint.  The target must meet the range requirements from Constellation Footfalls.

Star Gate

When you reach 17th level, you've bonded with the stars and can use them to project yourself across the universe.  You may cast the teleport spell without requiring spell slots or components.  You may only do this when it is night and you may only teleport outdoors.  Once you've used this ability you can't do so again until you complete a long rest.

A special Starpoint appears where you arrive, it lasts for 1 hour.  You can teleport to it without needed to meet the range requirements for Constellation Footfalls and you can bring any number of creatures of your choice that are willing and within 10 feet of you, along with you.