🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.5

Radius: 9.8

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.53 AU - 0.77 AU

Year: 349 Days

Day: 5.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,114,398 km

• M1: 122,221 km (0.109 R)
• M2: 439,818 km (0.036 R)
• M3: 781,798 km (0.086 R)
• M4: 1,139,786 km (0.112 R)
• M5: 1,472,641 km (0.109 R)
• M6: 1,857,706 km (0.09 R)
• M7: 2,286,304 km (0.116 R)
• M8: 2,925,985 km (0.034 R)
• M9: 3,233,408 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.3

Radius: 11.9

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.73 AU - 1.03 AU

Year: 550 Days

Day: 6.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,114,398 km

• M1: 148,700 km (0.117 R)
• M2: 634,744 km (0.107 R)
• M3: 1,020,108 km (0.115 R)
• M4: 1,449,903 km (0.085 R)
• M5: 1,859,202 km (0.093 R)
• M6: 2,621,254 km (0.08 R)
• M7: 3,158,460 km (0.114 R)
• M8: 3,884,010 km (0.073 R)
• M9: 4,342,677 km (0.094 R)
• M10: 5,067,478 km (0.077 R)
• M11: 5,483,959 km (0.114 R)
• M12: 5,871,417 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403

Radius: 9.3

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.69 AU - 2.81 AU

Year: 2251 Days

Day: 12.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,114,398 km

• M1: 115,639 km (0.111 R)
• M2: 486,492 km (0.104 R)
• M3: 1,139,337 km (0.055 R)
• M4: 2,003,415 km (0.093 R)
• M5: 2,360,954 km (0.104 R)
• M6: 2,803,464 km (0.093 R)
• M7: 3,268,863 km (0.099 R)
• M8: 4,202,503 km (0.12 R)
• M9: 4,610,307 km (0.049 R)
• M10: 6,436,299 km (0.063 R)
• M11: 6,847,244 km (0.057 R)
• M12: 8,275,455 km (0.078 R)
• M13: 8,577,194 km (0.085 R)
• M14: 8,949,094 km (0.084 R)
• M15: 9,461,617 km (0.11 R)
• M16: 9,926,118 km (0.099 R)
• M17: 10,301,609 km (0.097 R)
• M18: 11,081,313 km (0.076 R)
• M19: 12,168,291 km (0.057 R)
• M20: 12,559,190 km (0.111 R)
• M21: 14,379,497 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.7

Radius: 14.5

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.09 AU - 3.43 AU

Year: 3925 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,114,398 km

• M1: 180,265 km (0.05 R)
• M2: 632,649 km (0.088 R)
• M3: 1,211,294 km (0.116 R)
• M4: 1,735,634 km (0.09 R)
• M5: 2,487,065 km (0.089 R)
• M6: 2,965,179 km (0.119 R)
• M7: 3,581,971 km (0.104 R)
• M8: 4,110,650 km (0.119 R)
• M9: 4,761,999 km (0.113 R)
• M10: 5,854,363 km (0.103 R)
• M11: 7,552,748 km (0.081 R)
• M12: 8,393,488 km (0.103 R)
• M13: 11,294,490 km (0.075 R)
• M14: 17,521,501 km (0.067 R)
• M15: 21,921,025 km (0.112 R)
• M16: 22,458,829 km (0.07 R)
• M17: 23,074,574 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.8

Radius: 9.8

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.73 AU - 4.53 AU

Year: 4612 Days

Day: 11.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,114,398 km

• M1: 121,922 km (0.096 R)
• M2: 2,065,947 km (0.087 R)
• M3: 3,325,860 km (0.12 R)
• M4: 5,093,807 km (0.108 R)
• M5: 9,803,747 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933

Radius: 10.9

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.36 AU - 5.28 AU

Year: 7057 Days

Day: 12.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,114,398 km

• M1: 139,126 km (0.054 R)
• M2: 570,417 km (0.078 R)
• M3: 1,117,646 km (0.055 R)
• M4: 2,420,942 km (0.037 R)
• M5: 3,935,471 km (0.1 R)
• M6: 5,638,793 km (0.076 R)
• M7: 6,349,981 km (0.063 R)
• M8: 7,081,814 km (0.098 R)
• M9: 8,713,328 km (0.118 R)
• M10: 9,067,725 km (0.119 R)
• M11: 9,523,999 km (0.095 R)
• M12: 10,483,071 km (0.112 R)
• M13: 12,369,650 km (0.1 R)
• M14: 13,866,077 km (0.058 R)
• M15: 14,227,954 km (0.118 R)
• M16: 16,132,784 km (0.046 R)
• M17: 18,636,155 km (0.092 R)
• M18: 20,287,416 km (0.059 R)
• M19: 22,280,060 km (0.087 R)
• M20: 23,451,112 km (0.103 R)
• M21: 27,588,540 km (0.086 R)
• M22: 28,065,757 km (0.055 R)
• M23: 31,769,651 km (0.101 R)
• M24: 34,119,834 km (0.055 R)
• M25: 37,976,467 km (0.108 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: 327 - 12,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit