🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.3

Radius: 11.5

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.56 AU - 0.86 AU

Year: 413 Days

Day: 6.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,096,621 km

• M1: 143,764 km (0.064 R)
• M2: 521,498 km (0.119 R)
• M3: 1,107,024 km (0.103 R)
• M4: 1,525,449 km (0.083 R)
• M5: 2,082,552 km (0.062 R)
• M6: 2,654,016 km (0.056 R)
• M7: 3,116,572 km (0.087 R)
• M8: 3,548,910 km (0.11 R)
• M9: 3,969,579 km (0.118 R)
• M10: 4,409,547 km (0.077 R)
• M11: 5,325,235 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.4

Radius: 11.5

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.74 AU - 1.1 AU

Year: 609 Days

Day: 15 Hours

Environment

Temp: -167 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 47,096,621 km

• M1: 143,016 km (0.087 R)
• M2: 536,009 km (0.118 R)
• M3: 1,067,082 km (0.096 R)
• M4: 1,867,879 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729

Radius: 15

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.43 AU - 2.05 AU

Year: 1584 Days

Day: 8.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,096,621 km

• M1: 186,549 km (0.076 R)
• M2: 752,178 km (0.113 R)
• M3: 1,458,130 km (0.116 R)
• M4: 2,118,156 km (0.119 R)
• M5: 3,090,991 km (0.077 R)
• M6: 4,345,369 km (0.026 R)
• M7: 5,120,885 km (0.046 R)
• M8: 6,128,875 km (0.066 R)
• M9: 6,820,466 km (0.085 R)
• M10: 7,481,689 km (0.086 R)
• M11: 8,840,935 km (0.092 R)
• M12: 9,467,002 km (0.111 R)
• M13: 11,452,016 km (0.101 R)
• M14: 12,503,988 km (0.075 R)
• M15: 13,053,761 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269

Radius: 9.1

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.19 AU - 3.65 AU

Year: 3444 Days

Day: 11.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,096,621 km

• M1: 190,139 km (0.118 R)
• M2: 489,335 km (0.103 R)
• M3: 2,153,761 km (0.085 R)
• M4: 3,253,006 km (0.102 R)
• M5: 3,795,597 km (0.104 R)
• M6: 4,604,622 km (0.104 R)
• M7: 5,359,194 km (0.082 R)
• M8: 12,855,095 km (0.092 R)
• M9: 14,163,328 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.1

Radius: 11.7

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.67 AU - 4.25 AU

Year: 5439 Days

Day: 13.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,096,621 km

• M1: 147,204 km (0.052 R)
• M2: 925,712 km (0.035 R)
• M3: 1,296,116 km (0.047 R)
• M4: 2,286,454 km (0.039 R)
• M5: 2,857,020 km (0.081 R)
• M6: 3,502,685 km (0.07 R)
• M7: 4,099,430 km (0.067 R)
• M8: 5,038,755 km (0.063 R)
• M9: 6,277,875 km (0.116 R)
• M10: 7,462,690 km (0.07 R)
• M11: 8,353,844 km (0.085 R)
• M12: 10,157,695 km (0.094 R)
• M13: 10,539,768 km (0.087 R)
• M14: 11,785,919 km (0.114 R)
• M15: 15,402,746 km (0.087 R)
• M16: 18,488,352 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.4

Radius: 14.3

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.46 AU - 6.14 AU

Year: 8422 Days

Day: 10 Hours

Environment

Temp: -232 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,096,621 km

• M1: 177,872 km (0.111 R)
• M2: 632,500 km (0.059 R)
• M3: 1,105,827 km (0.088 R)
• M4: 1,669,811 km (0.12 R)
• M5: 2,213,001 km (0.05 R)
• M6: 5,452,394 km (0.114 R)
• M7: 6,969,765 km (0.096 R)
• M8: 8,798,150 km (0.099 R)
• M9: 10,216,487 km (0.063 R)
• M10: 10,824,752 km (0.116 R)
• M11: 11,564,813 km (0.082 R)
• M12: 13,443,313 km (0.12 R)
• M13: 14,486,908 km (0.077 R)
• M14: 15,983,934 km (0.076 R)
• M15: 16,804,927 km (0.06 R)
• M16: 17,581,939 km (0.058 R)
• M17: 20,451,974 km (0.061 R)
• M18: 21,256,511 km (0.103 R)
• M19: 23,360,007 km (0.104 R)
• M20: 24,777,147 km (0.096 R)
• M21: 37,644,060 km (0.028 R)
• M22: 39,343,193 km (0.097 R)
• M23: 43,813,925 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.4

Radius: 5.7

Gravity: 19.22 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 7.32 AU - 7.46 AU

Year: 13867 Days

Day: 18.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 47,096,621 km

• M1: 71,059 km (0.114 R)
• M2: 302,936 km (0.098 R)
• M3: 755,020 km (0.114 R)
• M4: 1,435,392 km (0.106 R)
• M5: 2,126,384 km (0.108 R)
• M6: 2,379,803 km (0.1 R)
• M7: 2,697,250 km (0.081 R)
• M8: 4,347,464 km (0.075 R)
• M9: 5,726,008 km (0.071 R)
• M10: 6,257,081 km (0.066 R)
• M11: 6,656,058 km (0.1 R)
• M12: 7,863,762 km (0.083 R)
• M13: 8,959,566 km (0.119 R)
• M14: 10,426,672 km (0.069 R)
• M15: 10,873,521 km (0.063 R)
• M16: 12,229,776 km (0.066 R)
• M17: 12,916,729 km (0.113 R)
• M18: 14,572,927 km (0.082 R)
• M19: 15,344,702 km (0.095 R)
• M20: 16,590,553 km (0.064 R)
• M21: 18,950,909 km (0.093 R)
• M22: 19,784,917 km (0.115 R)
• M23: 21,976,675 km (0.112 R)
• M24: 22,250,140 km (0.034 R)
• M25: 27,568,644 km (0.077 R)
• M26: 30,520,210 km (0.095 R)
• M27: 31,203,573 km (0.088 R)
• M28: 33,195,169 km (0.028 R)
• M29: 33,555,251 km (0.05 R)
• M30: 34,774,175 km (0.105 R)
• M31: 39,005,999 km (0.081 R)
• M32: 42,713,932 km (0.113 R)
• M33: 44,434,756 km (0.084 R)
• M34: 45,755,257 km (0.073 R)
• M35: 51,299,653 km (0.111 R)
• M36: 53,078,970 km (0.043 R)
• M37: 54,066,615 km (0.095 R)
• M38: 56,931,564 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184.6

Radius: 7.4

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.36 AU - 10.72 AU

Year: 18761 Days

Day: 16.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,096,621 km

• M1: 92,451 km (0.101 R)
• M2: 473,776 km (0.078 R)
• M3: 1,286,542 km (0.091 R)
• M4: 2,124,739 km (0.064 R)
• M5: 2,511,748 km (0.089 R)
• M6: 3,881,616 km (0.095 R)
• M7: 5,257,916 km (0.099 R)
• M8: 5,521,059 km (0.116 R)
• M9: 7,209,421 km (0.106 R)
• M10: 8,302,682 km (0.086 R)
• M11: 10,346,937 km (0.096 R)
• M12: 13,361,483 km (0.099 R)
• M13: 16,773,661 km (0.106 R)
• M14: 17,563,388 km (0.104 R)
• M15: 27,163,383 km (0.025 R)
• M16: 32,453,014 km (0.05 R)
• M17: 33,564,975 km (0.085 R)
• M18: 44,739,936 km (0.111 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: 346 - 15,929 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit