IISS Class IV Survey
Mercury
Orbital Data
Orbit
4.01
AU
1.61
Period
655.4 d
Effective HZCO Deviation
-0.24
Retrograde
No
Inclination
25
°
Eccentricity
0.25
Jump Shadow
Distance to Clear
1,098,600
km
1G
5.9h
2G
4.2h
3G
3.4h
4G
2.9h
5G
2.6h
6G
2.4h
Physical Data
Diameter
10,986.0
km
Mass
0.3
☉
Gravity
0.41
g
Density
0.48
☉
Environmental Data
Temperature
12
°C
Rotation
23.25
hours
Axial Tilt
3.49
°
Albedo
0.35
Greenhouse
0.49
Atmosphere
5 Thin
Hydrographics
8 76%–85%
Liquid
Water
Distribution
4 Slightly Scattered
Biological Data
Native Sophont
No
Extinct Sophont
No
Biomass Rating
5
Biodiversity Rating
2 Very uniform biosphere
Biocomplexity Rating
4 Differentiated multicellular organisms
Resource Rating
B Liable to experience a resource rush
Observations
No findings reported.
FORM 0407F-IV PART P
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