{ Astronomical Observatory } Entry No. 1 McDonald Observatory

  • Zone\ 30°40′17″N104°01′19″W [Earth]

  • O: used lasers to shoot at retroreflectors placed by humans on the Moon as a part of the lunar laser ranging (an Earthly scientific experiment) to measure the distance between the Earth and the Moon

  • Status in the Universal Spaceports Compendium [Guide]\ revelation of the Earthly astronomical observatories pending decision universal of The Spaceports Federation Convent

{ Astronomical Observatory } Entry No. 2 Pulkovo Observatory

  • Zone\ 59°46′18″N30°19′34″E [Earth]

  • O: humans at the Pulkovo Observatory do not heat the observatory during experiments to prevent any heat-related air currents inside the observatory, which could interfere with the accuracy of the astronomical observations, maintaining a stable temperature close to the outside environment, even if it means enduring very cold conditions [-20°C to -30°C (-4°F to -22°F) in Earthly measurements

  • Status in the Universal Spaceports Compendium [Guide]\ revelation of the Earthly astronomical observatories pending decision universal of The Spaceports Federation Convent