🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.6

Radius: 10.6

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.45 AU - 0.75 AU

Year: 315 Days

Day: 9.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 48,056,333 km

• M1: 131,796 km (0.084 R)
• M2: 617,989 km (0.095 R)
• M3: 1,628,672 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.4

Radius: 12.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.76 AU - 0.86 AU

Year: 494 Days

Day: 5.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,056,333 km

• M1: 151,692 km (0.109 R)
• M2: 628,610 km (0.114 R)
• M3: 1,298,210 km (0.09 R)
• M4: 1,745,957 km (0.063 R)
• M5: 2,180,239 km (0.082 R)
• M6: 2,865,547 km (0.117 R)
• M7: 3,318,978 km (0.032 R)
• M8: 3,703,146 km (0.091 R)
• M9: 4,621,826 km (0.05 R)
• M10: 5,635,053 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.8

Radius: 8.1

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.18 AU - 1.3 AU

Year: 937 Days

Day: 8.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,056,333 km

• M1: 100,679 km (0.082 R)
• M2: 453,132 km (0.098 R)
• M3: 901,178 km (0.119 R)
• M4: 1,208,003 km (0.046 R)
• M5: 1,553,723 km (0.068 R)
• M6: 2,352,427 km (0.116 R)
• M7: 2,896,664 km (0.086 R)
• M8: 3,154,271 km (0.113 R)
• M9: 3,562,972 km (0.062 R)
• M10: 3,859,625 km (0.05 R)
• M11: 4,296,451 km (0.089 R)
• M12: 4,918,329 km (0.087 R)
• M13: 6,139,048 km (0.092 R)
• M14: 6,608,636 km (0.072 R)
• M15: 7,080,018 km (0.095 R)
• M16: 7,828,756 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.9

Radius: 12.2

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.34 AU - 2.78 AU

Year: 2778 Days

Day: 10.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,056,333 km

• M1: 153,039 km (0.118 R)
• M2: 559,197 km (0.101 R)
• M3: 1,001,558 km (0.103 R)
• M4: 1,998,478 km (0.055 R)
• M5: 2,447,720 km (0.103 R)
• M6: 3,044,017 km (0.101 R)
• M7: 3,772,709 km (0.116 R)
• M8: 4,219,258 km (0.053 R)
• M9: 5,103,382 km (0.065 R)
• M10: 5,528,988 km (0.087 R)
• M11: 6,212,052 km (0.114 R)
• M12: 7,036,186 km (0.073 R)
• M13: 7,445,037 km (0.077 R)
• M14: 8,088,158 km (0.087 R)
• M15: 10,428,168 km (0.088 R)
• M16: 11,116,468 km (0.042 R)
• M17: 12,039,637 km (0.095 R)
• M18: 12,456,715 km (0.031 R)
• M19: 13,013,369 km (0.076 R)
• M20: 14,926,128 km (0.11 R)
• M21: 16,200,253 km (0.108 R)
• M22: 17,545,586 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.1

Radius: 9.4

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 3.43 AU - 3.87 AU

Year: 4730 Days

Day: 12.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,056,333 km

• M1: 117,135 km (0.072 R)
• M2: 470,635 km (0.115 R)
• M3: 931,845 km (0.113 R)
• M4: 1,779,018 km (0.103 R)
• M5: 2,341,207 km (0.115 R)
• M6: 3,490,866 km (0.115 R)
• M7: 3,882,962 km (0.098 R)
• M8: 4,855,049 km (0.047 R)
• M9: 6,792,491 km (0.06 R)
• M10: 7,143,298 km (0.043 R)
• M11: 8,090,851 km (0.112 R)
• M12: 8,817,598 km (0.096 R)
• M13: 9,196,978 km (0.064 R)
• M14: 11,934,469 km (0.059 R)
• M15: 12,588,212 km (0.076 R)
• M16: 13,167,455 km (0.034 R)
• M17: 16,108,250 km (0.106 R)
• M18: 17,257,012 km (0.118 R)
• M19: 24,567,860 km (0.118 R)
• M20: 25,472,478 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.6

Radius: 10.7

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.29 AU - 4.51 AU

Year: 6260 Days

Day: 10.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,056,333 km

• M1: 133,142 km (0.062 R)
• M2: 544,237 km (0.049 R)
• M3: 982,858 km (0.101 R)
• M4: 1,579,754 km (0.087 R)
• M5: 2,125,038 km (0.113 R)
• M6: 2,776,237 km (0.111 R)
• M7: 5,114,003 km (0.094 R)
• M8: 6,312,432 km (0.097 R)
• M9: 7,085,105 km (0.102 R)
• M10: 7,559,031 km (0.112 R)
• M11: 7,953,221 km (0.083 R)
• M12: 8,854,698 km (0.118 R)
• M13: 9,480,167 km (0.08 R)
• M14: 11,109,736 km (0.085 R)
• M15: 12,596,739 km (0.105 R)
• M16: 14,411,062 km (0.117 R)
• M17: 16,777,401 km (0.111 R)
• M18: 19,028,550 km (0.109 R)
• M19: 19,821,718 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.7

Radius: 13.7

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.17 AU - 5.17 AU

Year: 6845 Days

Day: 12.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,056,333 km

• M1: 170,392 km (0.071 R)
• M2: 674,836 km (0.071 R)
• M3: 1,198,429 km (0.059 R)
• M4: 1,641,089 km (0.106 R)
• M5: 2,278,376 km (0.062 R)
• M6: 3,147,390 km (0.085 R)
• M7: 3,910,788 km (0.059 R)
• M8: 5,158,733 km (0.101 R)
• M9: 5,943,673 km (0.091 R)
• M10: 8,291,163 km (0.095 R)
• M11: 8,819,094 km (0.093 R)
• M12: 9,903,678 km (0.1 R)
• M13: 12,247,278 km (0.093 R)
• M14: 13,452,589 km (0.099 R)
• M15: 14,133,708 km (0.101 R)
• M16: 14,940,040 km (0.114 R)
• M17: 15,406,935 km (0.09 R)
• M18: 17,372,950 km (0.082 R)
• M19: 17,889,661 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.9

Radius: 7.2

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 9.5 AU - 9.96 AU

Year: 20585 Days

Day: 22 Hours

Environment

Temp: -242 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,056,333 km

• M1: 96,341 km (0.103 R)
• M2: 830,119 km (0.065 R)
• M3: 1,588,729 km (0.065 R)
• M4: 1,941,780 km (0.116 R)
• M5: 2,421,990 km (0.104 R)
• M6: 5,978,081 km (0.083 R)
• M7: 17,184,906 km (0.085 R)
• M8: 20,980,054 km (0.082 R)
• M9: 28,115,424 km (0.113 R)
• M10: 39,676,198 km (0.094 R)
• M11: 40,440,792 km (0.079 R)
• M12: 43,597,307 km (0.089 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: 462 - 19,628 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit