Find a portal on a specific planet?

[sheap]

Hi, I was wondering how do you find a portal on a specific planet ?
My problem is, when I found a planet I like I use a planetary chart to scan for monolith, but most of the time it sends me to a portal or a monolith off-planet.

So is there anyway to lock the detection of a planetary chart on the planet where I am standing ?
I ve read that there is a portal on each planet of a system, there is non exeption ?

[loler_SK]

You need Exocraft with upgraded scanner then you can use it to find portals and other things (alien structures, depots etc) on planet.

[Johnny in the Clouds]

Most systems do have have one portal on each planet. But playing a while now I too have encountered systems that seemingly have only one portal and been sent off planet to another portal. I didn't bother looking for the others and not entirely sure that some of the abandoned no atmosphere planets do. I have never looked so thoroughly. However you only need one portal anyway to get back to the system.

Each planet in a system, in nearly all cases (excluding bugs or odd systems without a space station) will have a portal and each portal has a unique address. A single system assigns a unique glyph for each planet. If you take time to find the portal on each planet in a system you will notice that each address is almost identical except for one glyph, the glyph identifying the individual planet.

The glyphs are icon replacements for a large hexadecimal number, which the computer algorithm keeps track of the locations for each planet. Hexadecimal similarly is base 16 in our familiar decimal numbering system and allows for simpler handling of very large numbers used in the game's calculations.

I think the numbering for each planet (up to six in any system) starts from either 0 or 1. The zero glyph represents a sunset on water or something, without checking. If you have one portal address you should be able to guess the other planets by changing the correct glyph.

Finding planets this way you might be subject to the deliberater portal Interference and would still need to actually find the specific portal by visiting the actual system. If you have already found and visited the system without using a portal, things may function as expected.

Ioter_SK's comment above is correct about using an exocar, which is the most efficient way to find a portal and most other locations.