🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.7

Radius: 9.4

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.97 AU - 1.21 AU

Year: 800 Days

Day: 13.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,426,596 km

• M1: 124,316 km (0.109 R)
• M2: 464,651 km (0.115 R)
• M3: 964,009 km (0.048 R)
• M4: 1,277,416 km (0.081 R)
• M5: 1,589,926 km (0.07 R)
• M6: 1,953,898 km (0.03 R)
• M7: 2,404,187 km (0.098 R)
• M8: 2,715,650 km (0.116 R)
• M9: 3,029,955 km (0.06 R)
• M10: 3,394,675 km (0.099 R)
• M11: 3,718,704 km (0.027 R)
• M12: 4,048,567 km (0.104 R)
• M13: 5,587,480 km (0.094 R)
• M14: 6,138,449 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.5

Radius: 14.4

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.24 AU - 1.78 AU

Year: 1304 Days

Day: 12 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,426,596 km

• M1: 179,069 km (0.113 R)
• M2: 709,692 km (0.103 R)
• M3: 1,268,740 km (0.055 R)
• M4: 2,473,451 km (0.071 R)
• M5: 3,133,178 km (0.104 R)
• M6: 6,934,460 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.8

Radius: 14.1

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.63 AU - 1.85 AU

Year: 1613 Days

Day: 11.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,426,596 km

• M1: 177,124 km (0.08 R)
• M2: 1,012,030 km (0.081 R)
• M3: 1,466,508 km (0.03 R)
• M4: 1,948,512 km (0.092 R)
• M5: 2,937,055 km (0.1 R)
• M6: 3,588,255 km (0.07 R)
• M7: 6,118,254 km (0.094 R)
• M8: 9,302,594 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.6

Radius: 9.8

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.5 AU - 2.16 AU

Year: 1740 Days

Day: 11.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,426,596 km

• M1: 130,599 km (0.11 R)
• M2: 575,653 km (0.106 R)
• M3: 1,025,344 km (0.106 R)
• M4: 1,378,096 km (0.087 R)
• M5: 2,606,743 km (0.052 R)
• M6: 3,852,744 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.1

Radius: 12.5

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.68 AU - 2.64 AU

Year: 2231 Days

Day: 13.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,426,596 km

• M1: 155,582 km (0.114 R)
• M2: 886,068 km (0.102 R)
• M3: 1,298,061 km (0.061 R)
• M4: 2,104,393 km (0.065 R)
• M5: 2,737,043 km (0.11 R)
• M6: 3,780,937 km (0.086 R)
• M7: 4,214,172 km (0.092 R)
• M8: 6,850,236 km (0.059 R)
• M9: 8,821,637 km (0.092 R)
• M10: 10,261,367 km (0.078 R)
• M11: 11,739,095 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.5

Radius: 14.5

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.95 AU - 2.69 AU

Year: 2484 Days

Day: 13.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,426,596 km

• M1: 180,265 km (0.049 R)
• M2: 684,111 km (0.1 R)
• M3: 1,399,488 km (0.076 R)
• M4: 2,198,640 km (0.1 R)
• M5: 2,757,986 km (0.098 R)
• M6: 3,825,966 km (0.088 R)
• M7: 4,337,441 km (0.068 R)
• M8: 5,227,099 km (0.084 R)
• M9: 6,126,332 km (0.086 R)
• M10: 6,830,190 km (0.113 R)
• M11: 7,618,870 km (0.038 R)
• M12: 9,378,440 km (0.095 R)
• M13: 9,970,997 km (0.099 R)
• M14: 10,746,662 km (0.107 R)
• M15: 12,244,137 km (0.057 R)
• M16: 14,943,481 km (0.117 R)
• M17: 15,548,006 km (0.092 R)
• M18: 16,012,208 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.8

Radius: 10.5

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.51 AU - 3.81 AU

Year: 4922 Days

Day: 6.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,426,596 km

• M1: 130,898 km (0.056 R)
• M2: 506,987 km (0.061 R)
• M3: 879,336 km (0.104 R)
• M4: 1,642,435 km (0.12 R)
• M5: 2,091,977 km (0.043 R)
• M6: 2,782,670 km (0.099 R)
• M7: 3,181,797 km (0.087 R)
• M8: 3,597,230 km (0.075 R)
• M9: 4,797,454 km (0.048 R)
• M10: 5,204,959 km (0.059 R)
• M11: 6,058,863 km (0.118 R)
• M12: 6,470,856 km (0.083 R)
• M13: 6,833,930 km (0.104 R)
• M14: 7,210,767 km (0.076 R)
• M15: 7,783,577 km (0.026 R)
• M16: 9,643,228 km (0.107 R)
• M17: 10,882,497 km (0.117 R)
• M18: 12,175,322 km (0.069 R)
• M19: 12,730,330 km (0.111 R)
• M20: 13,514,372 km (0.086 R)
• M21: 14,892,169 km (0.075 R)
• M22: 19,313,534 km (0.104 R)
• M23: 20,701,353 km (0.073 R)
• M24: 21,202,506 km (0.087 R)
• M25: 22,982,422 km (0.105 R)
• M26: 25,020,543 km (0.112 R)
• M27: 27,864,249 km (0.046 R)
• M28: 30,087,722 km (0.106 R)
• M29: 30,638,542 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.8

Radius: 6.7

Gravity: 16.24 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 6.93 AU - 10.45 AU

Year: 18007 Days

Day: 17.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 171.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,426,596 km

• M1: 86,168 km (0.105 R)
• M2: 308,471 km (0.064 R)
• M3: 628,012 km (0.099 R)
• M4: 853,605 km (0.103 R)
• M5: 1,147,266 km (0.098 R)
• M6: 1,978,581 km (0.117 R)
• M7: 3,402,604 km (0.088 R)
• M8: 3,630,142 km (0.113 R)
• M9: 4,575,750 km (0.039 R)
• M10: 5,597,653 km (0.111 R)
• M11: 6,988,016 km (0.083 R)
• M12: 7,738,997 km (0.064 R)
• M13: 9,736,278 km (0.11 R)
• M14: 10,611,575 km (0.084 R)
• M15: 11,348,644 km (0.118 R)
• M16: 13,270,378 km (0.102 R)
• M17: 13,693,441 km (0.11 R)
• M18: 14,715,643 km (0.068 R)
• M19: 18,432,253 km (0.055 R)
• M20: 18,958,987 km (0.109 R)
• M21: 29,398,525 km (0.083 R)
• M22: 30,117,492 km (0.095 R)
• M23: 32,471,265 km (0.118 R)
• M24: 34,019,304 km (0.113 R)
• M25: 34,811,574 km (0.052 R)
• M26: 37,962,704 km (0.046 R)
• M27: 44,511,201 km (0.107 R)
• M28: 45,299,731 km (0.105 R)
• M29: 45,617,776 km (0.1 R)
• M30: 46,742,752 km (0.073 R)
• M31: 48,880,805 km (0.1 R)
• M32: 58,085,562 km (0.059 R)
• M33: 67,341,930 km (0.099 R)
• M34: 69,009,348 km (0.076 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 17,834 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit