🌌 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: 524.1

Radius: 12.7

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.53 AU - 0.73 AU

Year: 351 Days

Day: 12.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,325,346 km

• M1: 160,668 km (0.071 R)
• M2: 575,054 km (0.112 R)
• M3: 1,031,328 km (0.066 R)
• M4: 1,447,210 km (0.117 R)
• M5: 2,037,822 km (0.049 R)
• M6: 2,871,830 km (0.104 R)
• M7: 3,277,241 km (0.109 R)
• M8: 3,885,954 km (0.113 R)
• M9: 4,281,641 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.8

Radius: 15

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.77 AU - 1.15 AU

Year: 661 Days

Day: 7.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,325,346 km

• M1: 186,549 km (0.057 R)
• M2: 674,537 km (0.063 R)
• M3: 1,279,959 km (0.086 R)
• M4: 1,778,719 km (0.072 R)
• M5: 2,774,741 km (0.083 R)
• M6: 4,103,918 km (0.11 R)
• M7: 4,723,702 km (0.117 R)
• M8: 5,560,254 km (0.092 R)
• M9: 6,436,000 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.6

Radius: 13

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.05 AU - 1.37 AU

Year: 936 Days

Day: 12.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,325,346 km

• M1: 163,361 km (0.057 R)
• M2: 795,561 km (0.113 R)
• M3: 1,238,670 km (0.111 R)
• M4: 1,959,283 km (0.095 R)
• M5: 2,614,971 km (0.082 R)
• M6: 3,359,071 km (0.116 R)
• M7: 3,781,685 km (0.064 R)
• M8: 4,450,088 km (0.066 R)
• M9: 5,033,370 km (0.083 R)
• M10: 5,804,248 km (0.118 R)
• M11: 6,395,907 km (0.03 R)
• M12: 7,095,277 km (0.086 R)
• M13: 7,991,518 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.1

Radius: 8.8

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.6 AU - 1.8 AU

Year: 1558 Days

Day: 5.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,325,346 km

• M1: 109,954 km (0.056 R)
• M2: 562,937 km (0.103 R)
• M3: 1,092,364 km (0.073 R)
• M4: 2,228,859 km (0.096 R)
• M5: 3,805,770 km (0.068 R)
• M6: 4,492,574 km (0.112 R)
• M7: 5,049,826 km (0.115 R)
• M8: 5,697,285 km (0.054 R)
• M9: 6,350,280 km (0.099 R)
• M10: 7,639,664 km (0.075 R)
• M11: 10,658,549 km (0.065 R)
• M12: 11,075,778 km (0.072 R)
• M13: 11,612,684 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.2

Radius: 15

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.76 AU - 2.44 AU

Year: 2139 Days

Day: 8.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,325,346 km

• M1: 186,549 km (0.075 R)
• M2: 1,213,239 km (0.098 R)
• M3: 2,114,716 km (0.115 R)
• M4: 2,582,209 km (0.113 R)
• M5: 3,683,698 km (0.107 R)
• M6: 4,208,188 km (0.06 R)
• M7: 5,346,628 km (0.052 R)
• M8: 7,600,021 km (0.079 R)
• M9: 8,173,579 km (0.095 R)
• M10: 9,013,272 km (0.079 R)
• M11: 11,808,508 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.4

Radius: 8.6

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.83 AU - 4.47 AU

Year: 4902 Days

Day: 14 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 30,325,346 km

• M1: 106,962 km (0.077 R)
• M2: 386,112 km (0.112 R)
• M3: 716,275 km (0.064 R)
• M4: 1,258,567 km (0.049 R)
• M5: 1,996,384 km (0.096 R)
• M6: 2,340,459 km (0.042 R)
• M7: 2,848,792 km (0.115 R)
• M8: 3,267,068 km (0.072 R)
• M9: 4,876,292 km (0.067 R)
• M10: 8,116,732 km (0.039 R)
• M11: 10,461,678 km (0.038 R)
• M12: 11,693,916 km (0.091 R)
• M13: 12,076,887 km (0.113 R)
• M14: 13,276,512 km (0.061 R)
• M15: 15,621,159 km (0.069 R)
• M16: 16,559,886 km (0.108 R)
• M17: 17,288,428 km (0.099 R)
• M18: 19,202,831 km (0.115 R)
• M19: 19,602,108 km (0.112 R)
• M20: 23,147,279 km (0.112 R)
• M21: 25,070,509 km (0.097 R)
• M22: 25,387,955 km (0.069 R)
• M23: 26,356,003 km (0.119 R)
• M24: 26,931,955 km (0.098 R)
• M25: 27,854,076 km (0.062 R)
• M26: 28,279,981 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.4

Radius: 9.2

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.49 AU - 4.57 AU

Year: 5687 Days

Day: 13.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,325,346 km

• M1: 114,442 km (0.105 R)
• M2: 462,407 km (0.111 R)
• M3: 841,189 km (0.107 R)
• M4: 1,238,521 km (0.107 R)
• M5: 1,746,555 km (0.089 R)
• M6: 3,160,255 km (0.096 R)
• M7: 4,159,120 km (0.098 R)
• M8: 4,668,202 km (0.075 R)
• M9: 7,300,077 km (0.109 R)
• M10: 7,611,988 km (0.039 R)
• M11: 8,114,787 km (0.064 R)
• M12: 9,307,232 km (0.057 R)
• M13: 10,394,210 km (0.082 R)
• M14: 12,084,067 km (0.066 R)
• M15: 13,324,832 km (0.109 R)
• M16: 14,108,874 km (0.116 R)
• M17: 18,179,432 km (0.101 R)
• M18: 20,345,161 km (0.118 R)
• M19: 22,677,242 km (0.06 R)
• M20: 24,021,678 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.8

Radius: 8.8

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.05 AU - 4.71 AU

Year: 6443 Days

Day: 7.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,325,346 km

• M1: 111,450 km (0.104 R)
• M2: 486,791 km (0.117 R)
• M3: 1,000,959 km (0.11 R)
• M4: 1,627,625 km (0.089 R)
• M5: 1,943,426 km (0.083 R)
• M6: 2,579,516 km (0.103 R)
• M7: 3,286,815 km (0.112 R)
• M8: 6,035,526 km (0.076 R)
• M9: 6,934,161 km (0.106 R)
• M10: 7,882,761 km (0.116 R)
• M11: 8,293,108 km (0.088 R)
• M12: 9,360,937 km (0.093 R)
• M13: 11,154,167 km (0.081 R)
• M14: 11,576,482 km (0.028 R)
• M15: 12,353,643 km (0.062 R)
• M16: 13,321,242 km (0.036 R)
• M17: 17,014,514 km (0.074 R)
• M18: 18,600,401 km (0.098 R)
• M19: 22,063,442 km (0.049 R)
• M20: 22,879,199 km (0.097 R)
• M21: 29,606,017 km (0.097 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 10,845 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit