How i can delete map markers?

[WiMuDi]

How to delete a map marker(I created them, but then forgot to delete as unnecessary) if I am already in another solar system, and these markers are not in the list, but visually I see them (for example, a marker that is 70 light years away from me)

[japp_02]

There is a reset button in the Registry tab for removing all set waypoints. Other than that, select a single waypoint, and click RMB after which you chose to remove them.
To hide markers from the storyline, this is done in the PDA on the upper part where you toggle 'show on Hud'.

[VulcanTourist]

If it's a map MARKER and not a WAYPOINT, then you will have to make the 70-light-year trip back to that playfield in order to do something about it. Map markers are not quite the same as waypoints, and are managed differently. Resetting waypoints will not affect markers. In the map UI there is a separate "tab" that lists and allows management of markers within the playfield that you are in; you MUST be in a playfield to tinker with markers in it. The righthand info panel normally displays info about the planet or sector, but clicking the second button above that panel switches to the markers display.

From the markers panel you can select and delete or edit any markers that you have created.

If you're playing solo, there is a way that you could use a console command or two to deal with it and not have to actually travel all that way. godmode would let you avoid catastrophic death and the teleport command allows teleporting directly into a named playfield. You don't get to choose the specific spot, of course, so godmode is a hedge against bad luck, AND using [Shift] and [Ctrl] lets you move faster than any SV. Afterward you would teleport back to the playfield where you started, to find your ship and resume your game without that marker distraction. Pressing [G] when you're done disengages godmode.

[WiMuDi]

Thanks for answers!