🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.2

Radius: 13.2

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.49 AU - 0.73 AU

Year: 318 Days

Day: 7.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 42,401,779 km

• M1: 164,109 km (0.094 R)
• M2: 635,492 km (0.12 R)
• M3: 1,228,947 km (0.113 R)
• M4: 1,855,911 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858

Radius: 9.7

Gravity: 9.12 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.69 AU - 0.69 AU

Year: 382 Days

Day: 14.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,401,779 km

• M1: 120,725 km (0.085 R)
• M2: 586,723 km (0.076 R)
• M3: 1,097,001 km (0.118 R)
• M4: 1,443,320 km (0.069 R)
• M5: 2,363,646 km (0.05 R)
• M6: 2,701,438 km (0.09 R)
• M7: 3,161,003 km (0.084 R)
• M8: 3,597,530 km (0.079 R)
• M9: 3,954,171 km (0.103 R)
• M10: 4,447,694 km (0.099 R)
• M11: 4,920,424 km (0.113 R)
• M12: 5,426,364 km (0.103 R)
• M13: 5,794,075 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.8

Radius: 14.9

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.85 AU - 0.85 AU

Year: 523 Days

Day: 7.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,401,779 km

• M1: 185,352 km (0.116 R)
• M2: 669,450 km (0.09 R)
• M3: 1,433,896 km (0.101 R)
• M4: 2,048,144 km (0.108 R)
• M5: 2,605,397 km (0.089 R)
• M6: 3,242,235 km (0.111 R)
• M7: 3,857,381 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.7

Radius: 14.2

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.87 AU - 0.91 AU

Year: 560 Days

Day: 9.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,401,779 km

• M1: 176,525 km (0.07 R)
• M2: 703,260 km (0.072 R)
• M3: 1,796,670 km (0.095 R)
• M4: 2,841,013 km (0.109 R)
• M5: 3,758,647 km (0.08 R)
• M6: 4,464,599 km (0.118 R)
• M7: 5,427,411 km (0.062 R)
• M8: 5,885,779 km (0.11 R)
• M9: 6,780,673 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.6

Radius: 10.2

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.45 AU - 2.01 AU

Year: 1517 Days

Day: 6.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,401,779 km

• M1: 126,859 km (0.114 R)
• M2: 733,927 km (0.114 R)
• M3: 1,388,567 km (0.099 R)
• M4: 2,741,082 km (0.091 R)
• M5: 3,822,525 km (0.065 R)
• M6: 5,093,508 km (0.037 R)
• M7: 7,523,427 km (0.099 R)
• M8: 8,317,941 km (0.119 R)
• M9: 8,656,331 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 723.4

Radius: 5.9

Gravity: 20.78 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 7.39 AU - 8.71 AU

Year: 15231 Days

Day: 20 Hours

Environment

Temp: -238 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 42,401,779 km

• M1: 73,303 km (0.069 R)
• M2: 270,174 km (0.11 R)
• M3: 582,085 km (0.101 R)
• M4: 1,260,960 km (0.083 R)
• M5: 1,599,201 km (0.112 R)
• M6: 1,940,883 km (0.078 R)
• M7: 2,565,753 km (0.104 R)
• M8: 2,960,991 km (0.097 R)
• M9: 4,821,240 km (0.084 R)
• M10: 5,028,134 km (0.101 R)
• M11: 6,153,110 km (0.067 R)
• M12: 8,736,216 km (0.099 R)
• M13: 9,096,448 km (0.095 R)
• M14: 10,012,436 km (0.11 R)
• M15: 12,343,620 km (0.082 R)
• M16: 14,579,808 km (0.112 R)
• M17: 16,443,948 km (0.12 R)
• M18: 16,677,769 km (0.107 R)
• M19: 17,716,876 km (0.052 R)
• M20: 18,127,821 km (0.052 R)
• M21: 18,968,711 km (0.045 R)
• M22: 21,276,408 km (0.116 R)
• M23: 23,566,751 km (0.099 R)
• M24: 24,669,437 km (0.114 R)
• M25: 31,534,633 km (0.091 R)
• M26: 34,120,881 km (0.103 R)
• M27: 37,514,508 km (0.103 R)
• M28: 48,231,999 km (0.065 R)
• M29: 51,989,299 km (0.112 R)
• M30: 58,980,307 km (0.079 R)
• M31: 60,264,904 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119.4

Radius: 5.7

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.78 AU - 10.48 AU

Year: 19928 Days

Day: 20 Hours

Environment

Temp: -233 °C

Axial Tilt: 72.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 42,401,779 km

• M1: 71,209 km (0.12 R)
• M2: 268,079 km (0.063 R)
• M3: 515,514 km (0.09 R)
• M4: 990,188 km (0.106 R)
• M5: 1,720,076 km (0.103 R)
• M6: 2,163,335 km (0.111 R)
• M7: 3,389,738 km (0.029 R)
• M8: 4,032,111 km (0.036 R)
• M9: 4,752,276 km (0.109 R)
• M10: 5,555,018 km (0.103 R)
• M11: 6,196,344 km (0.05 R)
• M12: 9,260,108 km (0.105 R)
• M13: 13,916,641 km (0.107 R)
• M14: 14,466,264 km (0.112 R)
• M15: 14,652,663 km (0.104 R)
• M16: 15,414,415 km (0.057 R)
• M17: 19,851,637 km (0.119 R)
• M18: 20,236,403 km (0.067 R)
• M19: 20,547,866 km (0.077 R)
• M20: 23,410,720 km (0.098 R)
• M21: 28,624,206 km (0.075 R)
• M22: 37,056,290 km (0.091 R)
• M23: 38,229,137 km (0.089 R)
• M24: 39,064,791 km (0.074 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 17,309 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit