🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.8

Radius: 13

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.71 AU - 0.95 AU

Year: 496 Days

Day: 9.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,898,807 km

• M1: 161,715 km (0.086 R)
• M2: 609,462 km (0.103 R)
• M3: 1,203,964 km (0.104 R)
• M4: 1,729,202 km (0.033 R)
• M5: 2,284,060 km (0.072 R)
• M6: 2,771,450 km (0.07 R)
• M7: 3,640,315 km (0.056 R)
• M8: 4,153,286 km (0.067 R)
• M9: 4,729,686 km (0.107 R)
• M10: 5,546,640 km (0.049 R)
• M11: 6,154,307 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.9

Radius: 8.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.89 AU - 1.43 AU

Year: 820 Days

Day: 10.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,898,807 km

• M1: 101,427 km (0.103 R)
• M2: 544,387 km (0.077 R)
• M3: 919,129 km (0.104 R)
• M4: 1,246,898 km (0.104 R)
• M5: 1,518,718 km (0.108 R)
• M6: 1,897,948 km (0.05 R)
• M7: 2,244,118 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.2

Radius: 13.1

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.6 AU - 2.08 AU

Year: 1637 Days

Day: 10.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,898,807 km

• M1: 162,912 km (0.087 R)
• M2: 857,794 km (0.112 R)
• M3: 1,347,727 km (0.117 R)
• M4: 1,892,563 km (0.118 R)
• M5: 2,346,592 km (0.101 R)
• M6: 2,799,126 km (0.078 R)
• M7: 3,451,073 km (0.075 R)
• M8: 4,186,048 km (0.086 R)
• M9: 4,643,967 km (0.047 R)
• M10: 5,364,879 km (0.027 R)
• M11: 5,886,078 km (0.038 R)
• M12: 6,551,489 km (0.116 R)
• M13: 7,483,933 km (0.106 R)
• M14: 8,292,060 km (0.072 R)
• M15: 9,525,944 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.2

Radius: 14.3

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.69 AU - 2.17 AU

Year: 1759 Days

Day: 6.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,898,807 km

• M1: 182,210 km (0.113 R)
• M2: 639,980 km (0.069 R)
• M3: 1,107,623 km (0.078 R)
• M4: 1,807,441 km (0.118 R)
• M5: 2,367,237 km (0.062 R)
• M6: 2,991,060 km (0.074 R)
• M7: 3,753,411 km (0.103 R)
• M8: 4,320,387 km (0.061 R)
• M9: 4,980,562 km (0.054 R)
• M10: 5,707,458 km (0.037 R)
• M11: 6,244,963 km (0.072 R)
• M12: 6,793,539 km (0.104 R)
• M13: 8,089,206 km (0.068 R)
• M14: 9,430,500 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.4

Radius: 12.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.45 AU - 3.13 AU

Year: 3057 Days

Day: 11.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,898,807 km

• M1: 151,692 km (0.074 R)
• M2: 628,610 km (0.107 R)
• M3: 1,032,674 km (0.053 R)
• M4: 2,124,589 km (0.066 R)
• M5: 2,594,177 km (0.09 R)
• M6: 3,638,220 km (0.098 R)
• M7: 4,081,329 km (0.05 R)
• M8: 4,813,760 km (0.076 R)
• M9: 5,303,394 km (0.076 R)
• M10: 5,999,473 km (0.094 R)
• M11: 6,435,401 km (0.106 R)
• M12: 6,947,475 km (0.09 R)
• M13: 7,811,702 km (0.089 R)
• M14: 9,274,170 km (0.081 R)
• M15: 10,177,592 km (0.083 R)
• M16: 10,836,870 km (0.116 R)
• M17: 11,720,395 km (0.111 R)
• M18: 12,281,387 km (0.036 R)
• M19: 13,241,955 km (0.09 R)
• M20: 15,502,079 km (0.071 R)
• M21: 16,375,282 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.8

Radius: 10.1

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.72 AU - 2.96 AU

Year: 3140 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,898,807 km

• M1: 128,205 km (0.113 R)
• M2: 872,604 km (0.08 R)
• M3: 1,736,831 km (0.092 R)
• M4: 2,596,869 km (0.05 R)
• M5: 4,336,094 km (0.117 R)
• M6: 5,731,842 km (0.056 R)
• M7: 7,180,847 km (0.114 R)
• M8: 8,165,201 km (0.092 R)
• M9: 9,090,913 km (0.12 R)
• M10: 10,116,406 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.5

Radius: 14.1

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.88 AU - 4.24 AU

Year: 4406 Days

Day: 10 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,898,807 km

• M1: 175,478 km (0.089 R)
• M2: 835,355 km (0.117 R)
• M3: 1,319,752 km (0.11 R)
• M4: 2,064,451 km (0.117 R)
• M5: 2,614,672 km (0.084 R)
• M6: 3,150,531 km (0.119 R)
• M7: 4,517,407 km (0.116 R)
• M8: 5,509,989 km (0.111 R)
• M9: 6,073,075 km (0.112 R)
• M10: 7,118,914 km (0.115 R)
• M11: 8,209,782 km (0.041 R)
• M12: 9,331,018 km (0.045 R)
• M13: 9,847,729 km (0.064 R)
• M14: 11,113,327 km (0.061 R)
• M15: 13,211,437 km (0.11 R)
• M16: 15,397,361 km (0.072 R)
• M17: 16,691,831 km (0.093 R)
• M18: 21,624,372 km (0.049 R)
• M19: 23,682,689 km (0.063 R)
• M20: 26,180,525 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.5

Radius: 9.7

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.35 AU - 3.79 AU

Year: 4425 Days

Day: 6.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,898,807 km

• M1: 121,324 km (0.077 R)
• M2: 704,157 km (0.08 R)
• M3: 1,350,121 km (0.09 R)
• M4: 1,734,887 km (0.089 R)
• M5: 2,536,432 km (0.079 R)
• M6: 2,932,417 km (0.052 R)
• M7: 3,641,063 km (0.119 R)
• M8: 4,502,746 km (0.113 R)
• M9: 6,795,184 km (0.046 R)
• M10: 7,351,090 km (0.099 R)
• M11: 7,717,605 km (0.044 R)
• M12: 10,067,787 km (0.086 R)
• M13: 13,663,970 km (0.12 R)
• M14: 14,741,225 km (0.038 R)
• M15: 15,623,104 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 108.7

Radius: 7.2

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 7.96 AU - 12.84 AU

Year: 22002 Days

Day: 17.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,898,807 km

• M1: 102,175 km (0.054 R)
• M2: 380,577 km (0.093 R)
• M3: 1,394,701 km (0.062 R)
• M4: 1,983,967 km (0.12 R)
• M5: 6,648,728 km (0.12 R)
• M6: 12,857,039 km (0.07 R)
• M7: 19,245,018 km (0.066 R)
• M8: 26,428,109 km (0.09 R)
• M9: 35,899,300 km (0.077 R)
• M10: 37,295,796 km (0.112 R)
• M11: 39,457,934 km (0.063 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 218 - 11,350 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit