🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.2

Radius: 14.2

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.5 AU - 0.54 AU

Year: 250 Days

Day: 13.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,826,556 km

• M1: 176,675 km (0.109 R)
• M2: 631,004 km (0.117 R)
• M3: 1,248,843 km (0.071 R)
• M4: 1,935,946 km (0.103 R)
• M5: 2,436,052 km (0.036 R)
• M6: 3,381,061 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.4

Radius: 9.5

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.87 AU - 1.01 AU

Year: 608 Days

Day: 11.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,826,556 km

• M1: 118,182 km (0.107 R)
• M2: 490,382 km (0.092 R)
• M3: 831,764 km (0.071 R)
• M4: 1,203,216 km (0.07 R)
• M5: 1,506,750 km (0.115 R)
• M6: 1,854,415 km (0.045 R)
• M7: 2,683,187 km (0.091 R)
• M8: 3,095,479 km (0.036 R)
• M9: 3,689,383 km (0.06 R)
• M10: 4,314,253 km (0.083 R)
• M11: 4,637,235 km (0.11 R)
• M12: 5,432,198 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.1

Radius: 8.5

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.81 AU - 1.19 AU

Year: 667 Days

Day: 9 Hours

Environment

Temp: -177 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,826,556 km

• M1: 105,766 km (0.082 R)
• M2: 410,945 km (0.093 R)
• M3: 747,541 km (0.095 R)
• M4: 1,017,116 km (0.103 R)
• M5: 1,402,630 km (0.108 R)
• M6: 1,712,148 km (0.1 R)
• M7: 2,059,215 km (0.098 R)
• M8: 2,702,785 km (0.087 R)
• M9: 3,001,831 km (0.059 R)
• M10: 3,654,676 km (0.063 R)
• M11: 4,207,291 km (0.087 R)
• M12: 5,271,979 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.9

Radius: 11.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.02 AU - 1.06 AU

Year: 707 Days

Day: 9.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,826,556 km

• M1: 148,251 km (0.061 R)
• M2: 864,077 km (0.093 R)
• M3: 1,266,795 km (0.086 R)
• M4: 1,644,829 km (0.103 R)
• M5: 2,830,841 km (0.073 R)
• M6: 3,268,115 km (0.09 R)
• M7: 5,311,323 km (0.101 R)
• M8: 5,877,102 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.3

Radius: 13.2

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.93 AU - 3.07 AU

Year: 2636 Days

Day: 11.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 89.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,826,556 km

• M1: 164,109 km (0.119 R)
• M2: 575,802 km (0.115 R)
• M3: 1,202,767 km (0.091 R)
• M4: 2,045,751 km (0.081 R)
• M5: 2,522,818 km (0.084 R)
• M6: 3,042,521 km (0.118 R)
• M7: 3,669,486 km (0.106 R)
• M8: 4,101,674 km (0.115 R)
• M9: 4,716,970 km (0.076 R)
• M10: 5,137,939 km (0.113 R)
• M11: 6,184,974 km (0.112 R)
• M12: 7,109,639 km (0.076 R)
• M13: 7,816,489 km (0.088 R)
• M14: 9,233,929 km (0.081 R)
• M15: 9,860,744 km (0.095 R)
• M16: 11,045,260 km (0.103 R)
• M17: 12,116,829 km (0.086 R)
• M18: 13,696,283 km (0.113 R)
• M19: 14,885,587 km (0.077 R)
• M20: 16,043,474 km (0.099 R)
• M21: 16,848,161 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.3

Radius: 14.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.25 AU - 5.19 AU

Year: 6838 Days

Day: 8.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,826,556 km

• M1: 185,352 km (0.05 R)
• M2: 693,087 km (0.058 R)
• M3: 2,999,138 km (0.103 R)
• M4: 3,575,838 km (0.101 R)
• M5: 4,423,459 km (0.103 R)
• M6: 5,350,817 km (0.112 R)
• M7: 5,847,781 km (0.096 R)
• M8: 6,905,139 km (0.059 R)
• M9: 7,464,036 km (0.101 R)
• M10: 9,399,085 km (0.067 R)
• M11: 10,087,085 km (0.075 R)
• M12: 13,180,620 km (0.071 R)
• M13: 14,689,913 km (0.05 R)
• M14: 15,200,640 km (0.067 R)
• M15: 15,988,871 km (0.101 R)
• M16: 16,474,914 km (0.114 R)
• M17: 17,934,541 km (0.088 R)
• M18: 20,789,616 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.6

Radius: 11.6

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.13 AU - 5.21 AU

Year: 7839 Days

Day: 7.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,826,556 km

• M1: 144,661 km (0.062 R)
• M2: 862,581 km (0.097 R)
• M3: 1,717,982 km (0.064 R)
• M4: 2,501,426 km (0.06 R)
• M5: 3,367,298 km (0.109 R)
• M6: 3,960,903 km (0.091 R)
• M7: 4,652,494 km (0.119 R)
• M8: 5,520,909 km (0.052 R)
• M9: 6,457,542 km (0.109 R)
• M10: 7,178,005 km (0.073 R)
• M11: 11,022,072 km (0.071 R)
• M12: 13,622,831 km (0.06 R)
• M13: 15,261,227 km (0.034 R)
• M14: 15,857,823 km (0.04 R)
• M15: 17,597,198 km (0.119 R)
• M16: 20,083,365 km (0.056 R)
• M17: 23,139,649 km (0.075 R)
• M18: 28,137,564 km (0.042 R)
• M19: 43,552,578 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.2

Radius: 14.4

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.24 AU - 6.22 AU

Year: 9147 Days

Day: 10.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 68.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,826,556 km

• M1: 179,069 km (0.097 R)
• M2: 641,775 km (0.07 R)
• M3: 1,249,441 km (0.076 R)
• M4: 2,641,599 km (0.076 R)
• M5: 3,308,357 km (0.082 R)
• M6: 4,468,788 km (0.101 R)
• M7: 5,420,978 km (0.079 R)
• M8: 5,975,837 km (0.106 R)
• M9: 8,547,873 km (0.102 R)
• M10: 9,843,689 km (0.119 R)
• M11: 12,822,931 km (0.091 R)
• M12: 13,337,548 km (0.091 R)
• M13: 13,865,927 km (0.112 R)
• M14: 15,134,517 km (0.046 R)
• M15: 16,002,783 km (0.096 R)
• M16: 18,741,771 km (0.054 R)
• M17: 26,765,153 km (0.092 R)
• M18: 27,437,596 km (0.07 R)
• M19: 30,330,669 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.5

Radius: 3

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 10.88 AU - 10.98 AU

Year: 24097 Days

Day: 16.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,826,556 km

• M1: 363,672 km (0.117 R)
• M2: 461,958 km (0.103 R)
• M3: 598,391 km (0.105 R)
• M4: 706,551 km (0.112 R)
• M5: 1,112,260 km (0.081 R)
• M6: 2,202,829 km (0.104 R)
• M7: 4,392,044 km (0.099 R)
• M8: 5,033,220 km (0.113 R)
• M9: 6,091,625 km (0.108 R)
• M10: 6,429,118 km (0.118 R)
• M11: 11,656,068 km (0.057 R)
• M12: 12,655,980 km (0.088 R)
• M13: 24,683,200 km (0.078 R)
• M14: 28,405,344 km (0.11 R)
• M15: 32,789,908 km (0.088 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 17,825 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit