🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.9

Radius: 11.4

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.57 AU - 0.69 AU

Year: 351 Days

Day: 14.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,314,699 km

• M1: 141,819 km (0.091 R)
• M2: 504,145 km (0.099 R)
• M3: 997,818 km (0.114 R)
• M4: 1,411,905 km (0.037 R)
• M5: 1,831,527 km (0.038 R)
• M6: 2,377,858 km (0.059 R)
• M7: 3,124,352 km (0.09 R)
• M8: 3,575,988 km (0.112 R)
• M9: 4,096,289 km (0.118 R)
• M10: 4,475,370 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.1

Radius: 12.6

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.74 AU - 0.96 AU

Year: 551 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 20,314,699 km

• M1: 157,227 km (0.063 R)
• M2: 612,603 km (0.109 R)
• M3: 1,140,684 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.5

Radius: 10.2

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.75 AU - 1.03 AU

Year: 590 Days

Day: 11.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,314,699 km

• M1: 126,859 km (0.119 R)
• M2: 510,428 km (0.075 R)
• M3: 909,555 km (0.097 R)
• M4: 1,756,429 km (0.068 R)
• M5: 2,230,504 km (0.06 R)
• M6: 3,425,941 km (0.094 R)
• M7: 4,546,578 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.9

Radius: 12.4

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.09 AU - 1.45 AU

Year: 1006 Days

Day: 7.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,314,699 km

• M1: 154,235 km (0.085 R)
• M2: 740,360 km (0.075 R)
• M3: 1,410,558 km (0.105 R)
• M4: 1,921,585 km (0.043 R)
• M5: 2,414,210 km (0.112 R)
• M6: 2,874,822 km (0.084 R)
• M7: 4,161,065 km (0.077 R)
• M8: 5,133,601 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.2

Radius: 14

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.25 AU - 1.31 AU

Year: 1018 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,314,699 km

• M1: 176,077 km (0.083 R)
• M2: 631,303 km (0.095 R)
• M3: 1,085,931 km (0.108 R)
• M4: 1,670,260 km (0.058 R)
• M5: 2,471,656 km (0.039 R)
• M6: 2,967,573 km (0.048 R)
• M7: 3,616,080 km (0.099 R)
• M8: 4,315,749 km (0.066 R)
• M9: 6,129,025 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.9

Radius: 13.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.49 AU - 4.95 AU

Year: 6094 Days

Day: 12.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,314,699 km

• M1: 178,321 km (0.068 R)
• M2: 648,806 km (0.075 R)
• M3: 1,290,282 km (0.111 R)
• M4: 1,785,451 km (0.098 R)
• M5: 2,539,723 km (0.073 R)
• M6: 3,050,899 km (0.119 R)
• M7: 3,866,507 km (0.111 R)
• M8: 5,407,664 km (0.063 R)
• M9: 5,850,174 km (0.11 R)
• M10: 6,808,797 km (0.095 R)
• M11: 7,546,614 km (0.115 R)
• M12: 8,682,361 km (0.041 R)
• M13: 9,738,672 km (0.084 R)
• M14: 12,018,394 km (0.103 R)
• M15: 13,282,795 km (0.117 R)
• M16: 13,755,225 km (0.108 R)
• M17: 14,287,943 km (0.063 R)
• M18: 15,138,108 km (0.117 R)
• M19: 16,939,715 km (0.081 R)
• M20: 18,644,532 km (0.101 R)
• M21: 21,671,196 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.1

Radius: 11.9

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.14 AU - 4.48 AU

Year: 6290 Days

Day: 6 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 20,314,699 km

• M1: 147,952 km (0.043 R)
• M2: 732,880 km (0.091 R)
• M3: 1,229,994 km (0.114 R)
• M4: 1,846,786 km (0.047 R)
• M5: 2,835,777 km (0.093 R)
• M6: 4,629,755 km (0.114 R)
• M7: 6,096,562 km (0.112 R)
• M8: 7,047,107 km (0.097 R)
• M9: 7,972,669 km (0.047 R)
• M10: 9,064,883 km (0.07 R)
• M11: 10,302,207 km (0.104 R)
• M12: 14,628,577 km (0.057 R)
• M13: 15,746,672 km (0.064 R)
• M14: 17,257,461 km (0.083 R)
• M15: 19,079,114 km (0.043 R)
• M16: 20,337,382 km (0.049 R)
• M17: 21,967,400 km (0.069 R)
• M18: 22,529,589 km (0.099 R)
• M19: 23,934,911 km (0.118 R)
• M20: 29,752,025 km (0.063 R)
• M21: 30,242,706 km (0.061 R)
• M22: 33,406,401 km (0.082 R)
• M23: 38,381,877 km (0.053 R)
• M24: 38,846,677 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.6

Radius: 4.8

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.88 AU - 6.06 AU

Year: 10253 Days

Day: 15.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,314,699 km

• M1: 219,310 km (0.102 R)
• M2: 601,084 km (0.098 R)
• M3: 1,955,095 km (0.105 R)
• M4: 2,762,325 km (0.108 R)
• M5: 2,957,251 km (0.089 R)
• M6: 4,219,707 km (0.104 R)
• M7: 8,673,385 km (0.103 R)
• M8: 9,671,802 km (0.111 R)
• M9: 14,580,856 km (0.053 R)
• M10: 17,480,661 km (0.069 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 19,053 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit