The helmsman star is the star that governs a person's life, most often giving predestination. The stern star takes under its control all life events and possible circumstances, leads, directs, and sometimes destroys. In principle, not only stars but also nebulae can be steers. All people whose lives have been reflected in one way or another in human history have a Stern Star or Nebula in their horoscope.
A Star is a Stern Star if it is in conjunction with the planet that has the strongest status in the natal chart. Such conjunctions are especially pronounced with heavy dummy planets such as Lilith. Here are some notable examples that you may find interesting:

Lilith - Markab:

Provocations in the field of politics, the use of force, mixed with the awareness of one's intellect. Gives danger from edged weapons, warfare, forces one to live life as a warrior, depending on the position of Lilith - house and sign. Markab requires absolute adherence to the directives of one's conscience, and if a person with this position neglects his higher purpose, applying his tactical and military abilities in favor of his ego, he will be "removed" before his time.

Lilith - The Andromeda Nebula:

Vortex, vortex, tornado. This is a very scary connection that only very strong souls can work through. The Andromeda Nebula brings out from the subconscious depths of man all the most terrible, hidden, disgusting things that break out under the pretext of moral justice.
The Andromeda Nebula always goes in a pair or group, united by a false destructive purpose and has the ability to expand its zone of influence, like an incipient tornado.
The Andromeda Nebula often has to do with death, old age and mystery, and the beginning of its active influence in the life of the person marked by this star usually begins with such events.
Lilith adds no encouraging features to the ominous Nebula, inclining the possessor of this conjunction to manifest the lowest level of Lilith development - the person changes beyond recognition, cultivating in a very short time all the rudimentary vices of his soul, turning into a rapist, a murderer, a scoundrel, a traitor.

In the second passage of Lilith, the nebula requires complete control over one's own and others' emotions, requiring patience and understanding. Here, the individual is asked to humbly accept all blows of fate, their life will be full of hardship and pain, often such people bear unfair punishment, are victims of slander.
Their lives are filled with suffering, but an understanding of other people's suffering and justice must come. One must learn humility and compassion, which is very difficult in this aspect. Only a few can reach the highest development of Lilith at its conjunction with the Andromeda Nebula, and then we see great ascetics, hermit monks, sufferers, and martyrs who have devoted their lives to the service of others.

Lilith - Capulus:

Builder, architect, innovator. Difficult to work out the connection, able to completely "break" a weak soul and give unprecedented strength and power to a strong soul. Connection gives a person the ability to a great beginner, but also provokes him to the destruction.
A person of connection can and must lead, to rebuild a new world, a new universe, and often this ability manifests itself after the individual's own life has been completely destroyed. Having destroyed the little, the man must build the greater.
A man of connection must never cling to the old, afraid of losing what has long since outlived its time. One must bravely accept the destruction in one's life, realizing that on the ruins of the old one will be obliged to build a new one, but this new one must be for humanity as a whole, not so much for the connection man.

At the first level of Lilith, the individual struggles to accept the destruction in his life, clinging as best he can to the old. He tries to transfer the process of destruction to another person's life. Such an individual strives to trample on the lives of others for his own prosperity, shying away from anything to achieve his goal.