🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 10.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.6 AU - 0.96 AU

Year: 452 Days

Day: 9.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,708,492 km

• M1: 130,599 km (0.102 R)
• M2: 584,030 km (0.071 R)
• M3: 911,500 km (0.118 R)
• M4: 1,320,949 km (0.1 R)
• M5: 1,882,689 km (0.049 R)
• M6: 2,275,234 km (0.029 R)
• M7: 2,617,065 km (0.073 R)
• M8: 3,293,846 km (0.059 R)
• M9: 4,413,586 km (0.089 R)
• M10: 4,877,190 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.6

Radius: 14.4

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.86 AU - 1.2 AU

Year: 686 Days

Day: 6.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,708,492 km

• M1: 179,218 km (0.052 R)
• M2: 637,736 km (0.1 R)
• M3: 1,186,012 km (0.079 R)
• M4: 1,747,602 km (0.113 R)
• M5: 2,651,024 km (0.034 R)
• M6: 3,191,072 km (0.11 R)
• M7: 3,689,831 km (0.103 R)
• M8: 4,561,538 km (0.03 R)
• M9: 5,162,174 km (0.09 R)
• M10: 5,738,126 km (0.029 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.8

Radius: 13

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.03 AU - 1.09 AU

Year: 716 Days

Day: 5.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,708,492 km

• M1: 165,156 km (0.068 R)
• M2: 776,413 km (0.116 R)
• M3: 2,091,977 km (0.066 R)
• M4: 3,284,870 km (0.113 R)
• M5: 3,790,062 km (0.061 R)
• M6: 5,836,112 km (0.104 R)
• M7: 6,858,015 km (0.119 R)

Asteroid Belt

Center: 1.68 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.2

Radius: 11.8

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.09 AU - 2.49 AU

Year: 2273 Days

Day: 9.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,708,492 km

• M1: 146,756 km (0.076 R)
• M2: 547,827 km (0.084 R)
• M3: 1,013,675 km (0.035 R)
• M4: 1,575,864 km (0.096 R)
• M5: 2,409,274 km (0.086 R)
• M6: 2,838,919 km (0.107 R)
• M7: 3,267,517 km (0.093 R)
• M8: 3,720,499 km (0.072 R)
• M9: 4,798,651 km (0.088 R)
• M10: 5,217,076 km (0.074 R)
• M11: 6,453,951 km (0.12 R)
• M12: 8,494,915 km (0.053 R)
• M13: 9,074,756 km (0.109 R)
• M14: 9,644,425 km (0.071 R)
• M15: 10,162,483 km (0.04 R)
• M16: 10,659,895 km (0.07 R)
• M17: 13,036,108 km (0.065 R)
• M18: 15,146,485 km (0.111 R)
• M19: 16,102,565 km (0.083 R)
• M20: 17,693,539 km (0.083 R)
• M21: 19,445,030 km (0.113 R)
• M22: 19,855,976 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.5

Radius: 13.4

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.55 AU - 2.95 AU

Year: 2992 Days

Day: 12.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,708,492 km

• M1: 166,652 km (0.088 R)
• M2: 618,886 km (0.1 R)
• M3: 1,470,248 km (0.103 R)
• M4: 1,990,250 km (0.119 R)
• M5: 2,664,637 km (0.073 R)
• M6: 3,949,085 km (0.076 R)
• M7: 4,497,062 km (0.04 R)
• M8: 5,612,015 km (0.076 R)
• M9: 6,965,426 km (0.119 R)
• M10: 8,886,562 km (0.064 R)
• M11: 11,353,730 km (0.119 R)
• M12: 12,932,437 km (0.107 R)
• M13: 14,449,060 km (0.109 R)
• M14: 15,972,565 km (0.052 R)
• M15: 19,898,162 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.3

Radius: 10.6

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.81 AU - 3.71 AU

Year: 3861 Days

Day: 12.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,708,492 km

• M1: 131,796 km (0.066 R)
• M2: 794,514 km (0.048 R)
• M3: 1,630,168 km (0.081 R)
• M4: 2,347,789 km (0.114 R)
• M5: 3,225,480 km (0.093 R)
• M6: 3,869,798 km (0.093 R)
• M7: 4,532,516 km (0.025 R)
• M8: 7,680,205 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.5

Radius: 14.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.03 AU - 4.09 AU

Year: 4406 Days

Day: 9.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,708,492 km

• M1: 180,265 km (0.113 R)
• M2: 652,845 km (0.095 R)
• M3: 1,371,364 km (0.081 R)
• M4: 2,562,612 km (0.117 R)
• M5: 3,077,228 km (0.106 R)
• M6: 4,275,358 km (0.066 R)
• M7: 5,078,399 km (0.091 R)
• M8: 5,765,053 km (0.054 R)
• M9: 8,408,298 km (0.097 R)
• M10: 9,823,195 km (0.09 R)
• M11: 11,349,542 km (0.102 R)
• M12: 12,526,578 km (0.057 R)
• M13: 12,982,702 km (0.094 R)
• M14: 15,277,084 km (0.112 R)
• M15: 16,277,445 km (0.084 R)
• M16: 18,060,353 km (0.092 R)
• M17: 18,525,752 km (0.076 R)
• M18: 21,683,763 km (0.12 R)
• M19: 22,276,170 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.5

Radius: 5.7

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.95 AU - 8.43 AU

Year: 12647 Days

Day: 19.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,708,492 km

• M1: 71,807 km (0.079 R)
• M2: 260,599 km (0.072 R)
• M3: 484,248 km (0.11 R)
• M4: 1,547,291 km (0.098 R)
• M5: 1,968,409 km (0.106 R)
• M6: 2,539,573 km (0.088 R)
• M7: 3,058,229 km (0.049 R)
• M8: 4,854,750 km (0.06 R)
• M9: 6,239,278 km (0.086 R)
• M10: 7,578,778 km (0.111 R)
• M11: 8,780,198 km (0.025 R)
• M12: 9,145,666 km (0.048 R)
• M13: 9,906,670 km (0.075 R)
• M14: 10,153,058 km (0.119 R)
• M15: 12,104,562 km (0.104 R)
• M16: 15,185,530 km (0.111 R)
• M17: 15,711,965 km (0.072 R)
• M18: 16,801,337 km (0.115 R)
• M19: 19,588,495 km (0.093 R)
• M20: 21,995,525 km (0.067 R)
• M21: 22,754,435 km (0.095 R)
• M22: 23,617,913 km (0.097 R)
• M23: 35,975,446 km (0.118 R)
• M24: 42,212,181 km (0.034 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 11,064 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit