GRN, as viewed by a Tug Module (Medium)
GRN, as viewed by a Tug Module (Medium)

NaviComp name GRN
NaviComp coordinates

X: 150
Y: -2900

Has atmosphere Yes
Has solid surface No
Can be landed on No
Can be splashed-down on Yes

The green planet, or GRN on the NaviComp, is a small planet with a fairly shallow atmosphere explored in Missions 15 and 18. It has a yellowish-green ocean, which can be used for splashdown.

When you enter the GRN atmosphere, the crew module will descend into a green atmosphere. The re-entry module may periodically be obscured by red clouds. At the end, the module will splash down into lime water.

From GRN you can reach RED (735), MSS (902), and LUN (730).


  • GRN's radius has been calculated to be 1.98 NaviComp units, with an additional .67 units for the atmosphere, bringing its total radius up to 2.65 units.

A Gemini Capsule following splashdown on GRN

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