🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650

Radius: 8.8

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.43 AU - 0.69 AU

Year: 295 Days

Day: 12.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,821,118 km

• M1: 109,506 km (0.079 R)
• M2: 493,075 km (0.054 R)
• M3: 773,122 km (0.027 R)
• M4: 1,247,796 km (0.104 R)
• M5: 1,638,845 km (0.061 R)
• M6: 2,810,794 km (0.078 R)
• M7: 3,147,689 km (0.086 R)
• M8: 3,601,120 km (0.028 R)
• M9: 3,951,179 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.8

Radius: 14

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.67 AU - 1.01 AU

Year: 541 Days

Day: 11.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,821,118 km

• M1: 174,132 km (0.099 R)
• M2: 612,304 km (0.078 R)
• M3: 1,210,845 km (0.119 R)
• M4: 1,930,561 km (0.1 R)
• M5: 2,376,362 km (0.084 R)
• M6: 2,860,162 km (0.114 R)
• M7: 3,692,225 km (0.033 R)
• M8: 6,066,493 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.6

Radius: 10.6

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.98 AU - 1.12 AU

Year: 756 Days

Day: 13.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,821,118 km

• M1: 131,945 km (0.079 R)
• M2: 530,923 km (0.106 R)
• M3: 887,564 km (0.092 R)
• M4: 1,453,643 km (0.108 R)
• M5: 1,787,695 km (0.12 R)
• M6: 2,960,243 km (0.033 R)
• M7: 3,368,944 km (0.096 R)
• M8: 4,327,118 km (0.037 R)
• M9: 4,884,520 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.1

Radius: 14.5

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.18 AU - 2.2 AU

Year: 2278 Days

Day: 10.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,821,118 km

• M1: 181,013 km (0.101 R)
• M2: 688,150 km (0.102 R)
• M3: 1,315,863 km (0.044 R)
• M4: 1,798,466 km (0.101 R)
• M5: 2,347,490 km (0.092 R)
• M6: 3,661,258 km (0.031 R)
• M7: 4,303,931 km (0.096 R)
• M8: 6,259,175 km (0.061 R)
• M9: 8,130,195 km (0.099 R)
• M10: 11,160,001 km (0.116 R)
• M11: 12,431,882 km (0.064 R)
• M12: 13,890,013 km (0.05 R)
• M13: 14,589,383 km (0.043 R)
• M14: 15,410,376 km (0.099 R)
• M15: 17,410,051 km (0.116 R)
• M16: 17,895,047 km (0.104 R)
• M17: 18,444,669 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.8

Radius: 13.8

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.55 AU - 2.83 AU

Year: 3101 Days

Day: 5.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,821,118 km

• M1: 171,589 km (0.077 R)
• M2: 933,192 km (0.1 R)
• M3: 1,448,107 km (0.119 R)
• M4: 2,141,045 km (0.089 R)
• M5: 2,807,802 km (0.08 R)
• M6: 4,584,576 km (0.068 R)
• M7: 5,672,901 km (0.098 R)
• M8: 7,179,351 km (0.089 R)
• M9: 7,669,584 km (0.066 R)
• M10: 8,112,543 km (0.057 R)
• M11: 10,673,808 km (0.104 R)
• M12: 11,270,554 km (0.089 R)
• M13: 13,536,513 km (0.12 R)
• M14: 14,855,218 km (0.09 R)
• M15: 15,762,679 km (0.091 R)
• M16: 16,481,347 km (0.111 R)
• M17: 19,015,086 km (0.084 R)
• M18: 22,830,281 km (0.078 R)
• M19: 23,607,591 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341

Radius: 10

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.59 AU - 3.89 AU

Year: 5084 Days

Day: 12.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,821,118 km

• M1: 124,465 km (0.097 R)
• M2: 457,171 km (0.103 R)
• M3: 891,304 km (0.117 R)
• M4: 1,228,947 km (0.082 R)
• M5: 1,759,421 km (0.097 R)
• M6: 2,119,652 km (0.116 R)
• M7: 2,623,797 km (0.088 R)
• M8: 3,243,282 km (0.111 R)
• M9: 4,129,799 km (0.109 R)
• M10: 4,821,689 km (0.074 R)
• M11: 5,455,535 km (0.113 R)
• M12: 5,889,818 km (0.044 R)
• M13: 6,376,460 km (0.117 R)
• M14: 7,172,320 km (0.057 R)
• M15: 7,495,601 km (0.028 R)
• M16: 8,417,423 km (0.096 R)
• M17: 12,312,503 km (0.104 R)
• M18: 14,649,820 km (0.092 R)
• M19: 15,330,640 km (0.113 R)
• M20: 16,307,963 km (0.117 R)
• M21: 17,968,948 km (0.095 R)
• M22: 18,506,603 km (0.106 R)
• M23: 19,993,007 km (0.103 R)
• M24: 20,505,829 km (0.028 R)
• M25: 23,413,264 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.4

Radius: 6.3

Gravity: 13.69 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.33 AU - 7.53 AU

Year: 14236 Days

Day: 24 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,821,118 km

• M1: 109,206 km (0.107 R)
• M2: 582,983 km (0.118 R)
• M3: 824,883 km (0.114 R)
• M4: 3,303,271 km (0.091 R)
• M5: 3,640,315 km (0.1 R)
• M6: 4,292,412 km (0.036 R)
• M7: 5,360,391 km (0.11 R)
• M8: 6,012,338 km (0.093 R)
• M9: 6,962,285 km (0.065 R)
• M10: 10,462,875 km (0.118 R)
• M11: 15,406,786 km (0.05 R)
• M12: 16,053,348 km (0.051 R)
• M13: 18,579,457 km (0.095 R)
• M14: 19,978,796 km (0.079 R)
• M15: 23,171,513 km (0.103 R)
• M16: 25,380,027 km (0.101 R)
• M17: 26,586,384 km (0.111 R)
• M18: 27,725,273 km (0.06 R)
• M19: 30,882,984 km (0.114 R)
• M20: 32,025,164 km (0.091 R)
• M21: 36,244,722 km (0.061 R)
• M22: 36,496,495 km (0.119 R)
• M23: 45,473,714 km (0.084 R)
• M24: 46,950,693 km (0.091 R)
• M25: 53,178,901 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 567.7

Radius: 6.1

Gravity: 15.26 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.34 AU - 8.74 AU

Year: 14553 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,821,118 km

• M1: 75,996 km (0.078 R)
• M2: 530,923 km (0.083 R)
• M3: 1,126,322 km (0.056 R)
• M4: 5,844,490 km (0.107 R)
• M5: 6,911,272 km (0.101 R)
• M6: 7,781,034 km (0.099 R)
• M7: 8,575,848 km (0.117 R)
• M8: 13,312,266 km (0.12 R)
• M9: 14,931,363 km (0.109 R)
• M10: 18,963,325 km (0.11 R)
• M11: 20,743,540 km (0.045 R)
• M12: 21,360,930 km (0.084 R)
• M13: 24,534,649 km (0.11 R)
• M14: 28,009,359 km (0.105 R)
• M15: 32,148,283 km (0.082 R)
• M16: 34,301,745 km (0.057 R)
• M17: 48,191,308 km (0.027 R)
• M18: 51,324,935 km (0.098 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: 534 - 17,709 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit