4 ms·

There are a few "frozen orbits" that are stable: https://science.nasa.gov/science-news/science-at-nasa/2006/30nov_highorbit/ https://science.nasa.gov/science-ne

• moffkalast 4y ago
  Yeah and the LRO has been in one of them for 13 years now. It does restrict you quite a bit though. For Luna it doesn't make as much sense as it would for say Mars, since there's no atmosphere to reduce efficiency and no shortage of ground real estate. You can save a bit of propellant to not bring the panel assembly down, but you'll need fuel for orbital stationkeeping instead anyway.
  • dylan604 4y ago
    With the proposed "cheapness" of Starship $/kg, wouldn't sending fuel to refill the station keeping abilities be feasible?