🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.6

Radius: 9.3

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.08 AU - 1.36 AU

Year: 857 Days

Day: 11.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,952,707 km

• M1: 115,639 km (0.103 R)
• M2: 451,486 km (0.111 R)
• M3: 871,258 km (0.09 R)
• M4: 1,434,195 km (0.102 R)
• M5: 1,727,257 km (0.112 R)
• M6: 2,023,910 km (0.088 R)
• M7: 2,416,903 km (0.093 R)
• M8: 3,490,717 km (0.095 R)
• M9: 3,970,178 km (0.039 R)
• M10: 4,287,774 km (0.07 R)
• M11: 4,974,578 km (0.097 R)
• M12: 6,649,775 km (0.092 R)
• M13: 7,615,280 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 10.5

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.23 AU - 1.27 AU

Year: 889 Days

Day: 12.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,952,707 km

• M1: 131,347 km (0.111 R)
• M2: 509,979 km (0.12 R)
• M3: 880,832 km (0.117 R)
• M4: 1,278,763 km (0.08 R)
• M5: 1,610,122 km (0.109 R)
• M6: 1,961,677 km (0.117 R)
• M7: 2,290,643 km (0.118 R)
• M8: 2,860,461 km (0.073 R)
• M9: 3,466,033 km (0.092 R)
• M10: 5,647,020 km (0.099 R)
• M11: 6,492,697 km (0.118 R)
• M12: 6,934,908 km (0.033 R)
• M13: 8,280,990 km (0.112 R)
• M14: 9,371,708 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.3

Radius: 14.9

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.24 AU - 1.32 AU

Year: 921 Days

Day: 5.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,952,707 km

• M1: 185,501 km (0.069 R)
• M2: 784,042 km (0.056 R)
• M3: 1,351,766 km (0.052 R)
• M4: 1,955,244 km (0.112 R)
• M5: 2,488,112 km (0.109 R)
• M6: 3,066,158 km (0.092 R)
• M7: 3,592,742 km (0.059 R)
• M8: 4,090,455 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237

Radius: 13.5

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.75 AU - 2.19 AU

Year: 1758 Days

Day: 9.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,952,707 km

• M1: 167,998 km (0.097 R)
• M2: 590,912 km (0.102 R)
• M3: 1,011,581 km (0.089 R)
• M4: 1,443,619 km (0.06 R)
• M5: 2,526,708 km (0.081 R)
• M6: 3,101,613 km (0.085 R)
• M7: 3,778,543 km (0.092 R)
• M8: 5,099,642 km (0.093 R)
• M9: 6,024,605 km (0.084 R)
• M10: 7,420,354 km (0.117 R)
• M11: 8,025,178 km (0.115 R)
• M12: 9,652,653 km (0.069 R)
• M13: 10,343,496 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.9

Radius: 15

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 3.96 AU - 4.02 AU

Year: 5067 Days

Day: 12.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,952,707 km

• M1: 195,824 km (0.096 R)
• M2: 794,664 km (0.058 R)
• M3: 1,330,523 km (0.038 R)
• M4: 2,428,422 km (0.069 R)
• M5: 3,210,520 km (0.057 R)
• M6: 3,753,261 km (0.107 R)
• M7: 4,402,965 km (0.106 R)
• M8: 5,438,481 km (0.075 R)
• M9: 6,100,003 km (0.083 R)
• M10: 13,883,281 km (0.059 R)
• M11: 16,100,471 km (0.117 R)
• M12: 19,664,640 km (0.118 R)
• M13: 24,086,604 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.8

Radius: 12.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.98 AU - 4.16 AU

Year: 5221 Days

Day: 10.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,952,707 km

• M1: 155,432 km (0.073 R)
• M2: 914,641 km (0.089 R)
• M3: 1,563,298 km (0.071 R)
• M4: 2,385,488 km (0.097 R)
• M5: 3,632,685 km (0.104 R)
• M6: 4,636,038 km (0.095 R)
• M7: 5,451,346 km (0.105 R)
• M8: 5,972,396 km (0.045 R)
• M9: 8,318,390 km (0.102 R)
• M10: 11,765,424 km (0.103 R)
• M11: 12,533,609 km (0.116 R)
• M12: 13,117,788 km (0.11 R)
• M13: 15,337,073 km (0.08 R)
• M14: 16,191,726 km (0.08 R)
• M15: 17,401,823 km (0.088 R)
• M16: 18,263,955 km (0.102 R)
• M17: 21,394,590 km (0.063 R)
• M18: 24,372,335 km (0.11 R)
• M19: 29,900,874 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.4

Radius: 14.8

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.17 AU - 5.61 AU

Year: 6875 Days

Day: 10.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 38,952,707 km

• M1: 184,903 km (0.107 R)
• M2: 659,577 km (0.103 R)
• M3: 1,572,274 km (0.055 R)
• M4: 3,280,083 km (0.113 R)
• M5: 4,599,237 km (0.114 R)
• M6: 5,844,041 km (0.091 R)
• M7: 7,380,261 km (0.099 R)
• M8: 9,082,685 km (0.103 R)
• M9: 9,580,996 km (0.113 R)
• M10: 10,732,450 km (0.12 R)
• M11: 12,797,799 km (0.12 R)
• M12: 16,210,425 km (0.096 R)
• M13: 17,703,412 km (0.083 R)
• M14: 19,286,457 km (0.099 R)
• M15: 20,495,806 km (0.107 R)
• M16: 25,573,606 km (0.12 R)
• M17: 26,114,403 km (0.094 R)
• M18: 27,312,382 km (0.107 R)
• M19: 28,162,996 km (0.081 R)
• M20: 28,836,785 km (0.111 R)
• M21: 32,054,934 km (0.114 R)
• M22: 33,858,486 km (0.115 R)
• M23: 34,730,342 km (0.108 R)
• M24: 37,551,310 km (0.051 R)
• M25: 38,016,559 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.3

Radius: 11.1

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.78 AU - 6.06 AU

Year: 9158 Days

Day: 13.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,952,707 km

• M1: 148,700 km (0.066 R)
• M2: 667,954 km (0.066 R)
• M3: 1,283,251 km (0.095 R)
• M4: 1,759,720 km (0.098 R)
• M5: 2,458,192 km (0.096 R)
• M6: 2,872,279 km (0.08 R)
• M7: 6,148,622 km (0.053 R)
• M8: 7,364,105 km (0.06 R)
• M9: 8,948,197 km (0.104 R)
• M10: 10,748,457 km (0.047 R)
• M11: 11,812,098 km (0.072 R)
• M12: 12,889,053 km (0.095 R)
• M13: 15,052,239 km (0.058 R)
• M14: 16,776,354 km (0.031 R)
• M15: 17,447,151 km (0.094 R)
• M16: 18,628,525 km (0.114 R)
• M17: 19,058,021 km (0.048 R)
• M18: 21,305,130 km (0.084 R)
• M19: 21,775,017 km (0.086 R)
• M20: 25,172,385 km (0.076 R)
• M21: 29,580,885 km (0.072 R)
• M22: 31,865,094 km (0.06 R)
• M23: 32,998,149 km (0.099 R)
• M24: 33,838,889 km (0.099 R)
• M25: 35,782,763 km (0.106 R)
• M26: 38,604,479 km (0.12 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: 335 - 10,745 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit