🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.2

Radius: 8.3

Gravity: 11.66 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.53 AU - 0.57 AU

Year: 287 Days

Day: 13.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,518,685 km

• M1: 103,223 km (0.117 R)
• M2: 365,468 km (0.096 R)
• M3: 717,621 km (0.119 R)
• M4: 1,035,217 km (0.088 R)
• M5: 1,300,454 km (0.086 R)
• M6: 1,691,952 km (0.045 R)
• M7: 1,972,448 km (0.087 R)
• M8: 2,284,359 km (0.115 R)
• M9: 2,647,733 km (0.073 R)
• M10: 2,947,676 km (0.093 R)
• M11: 3,379,416 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.8

Radius: 14.3

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.98 AU - 1.18 AU

Year: 789 Days

Day: 12.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,518,685 km

• M1: 177,872 km (0.052 R)
• M2: 705,354 km (0.077 R)
• M3: 1,203,515 km (0.104 R)
• M4: 1,962,425 km (0.095 R)
• M5: 2,874,224 km (0.094 R)
• M6: 3,357,575 km (0.047 R)
• M7: 3,909,591 km (0.082 R)
• M8: 4,585,324 km (0.099 R)
• M9: 5,129,412 km (0.056 R)
• M10: 5,588,378 km (0.113 R)
• M11: 6,210,705 km (0.107 R)
• M12: 7,662,253 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.3

Radius: 13.2

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.99 AU - 1.53 AU

Year: 994 Days

Day: 14 Hours

Environment

Temp: -191 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,518,685 km

• M1: 164,109 km (0.085 R)
• M2: 615,146 km (0.062 R)
• M3: 1,094,608 km (0.097 R)
• M4: 2,866,295 km (0.057 R)
• M5: 3,557,288 km (0.093 R)
• M6: 4,088,360 km (0.038 R)
• M7: 5,037,858 km (0.108 R)
• M8: 5,574,765 km (0.116 R)
• M9: 6,129,324 km (0.047 R)
• M10: 7,257,292 km (0.099 R)
• M11: 7,798,387 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.8

Radius: 14.2

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.41 AU - 1.55 AU

Year: 1266 Days

Day: 5.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,518,685 km

• M1: 176,675 km (0.094 R)
• M2: 623,524 km (0.114 R)
• M3: 1,123,330 km (0.108 R)
• M4: 4,045,874 km (0.087 R)
• M5: 5,468,550 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.6

Radius: 13.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.45 AU - 1.61 AU

Year: 1330 Days

Day: 10.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,518,685 km

• M1: 171,589 km (0.073 R)
• M2: 677,828 km (0.108 R)
• M3: 1,479,373 km (0.097 R)
• M4: 2,318,617 km (0.081 R)
• M5: 2,795,236 km (0.064 R)
• M6: 3,314,191 km (0.078 R)
• M7: 3,806,368 km (0.11 R)
• M8: 5,385,823 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.9

Radius: 8.2

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.59 AU - 4.21 AU

Year: 5414 Days

Day: 12.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,518,685 km

• M1: 121,623 km (0.091 R)
• M2: 651,798 km (0.12 R)
• M3: 1,525,749 km (0.102 R)
• M4: 3,412,627 km (0.087 R)
• M5: 3,983,791 km (0.102 R)
• M6: 5,380,886 km (0.111 R)
• M7: 9,105,574 km (0.113 R)
• M8: 10,540,068 km (0.107 R)
• M9: 11,528,012 km (0.073 R)
• M10: 11,858,324 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.5

Radius: 3.2

Gravity: 84.42 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.55 AU - 5.79 AU

Year: 9490 Days

Day: 19.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 33,518,685 km

• M1: 39,793 km (0.09 R)
• M2: 139,724 km (0.097 R)
• M3: 361,428 km (0.046 R)
• M4: 594,053 km (0.08 R)
• M5: 1,137,093 km (0.069 R)
• M6: 1,297,163 km (0.081 R)
• M7: 1,724,115 km (0.076 R)
• M8: 2,430,666 km (0.115 R)
• M9: 3,191,072 km (0.069 R)
• M10: 4,297,648 km (0.115 R)
• M11: 5,707,009 km (0.098 R)
• M12: 5,920,485 km (0.042 R)
• M13: 7,651,033 km (0.104 R)
• M14: 8,310,611 km (0.113 R)
• M15: 8,817,897 km (0.103 R)
• M16: 9,103,030 km (0.077 R)
• M17: 12,301,732 km (0.079 R)
• M18: 12,657,625 km (0.087 R)
• M19: 12,959,514 km (0.075 R)
• M20: 13,204,406 km (0.086 R)
• M21: 13,957,781 km (0.108 R)
• M22: 14,805,552 km (0.107 R)
• M23: 15,549,352 km (0.076 R)
• M24: 17,778,959 km (0.088 R)
• M25: 20,294,746 km (0.103 R)
• M26: 23,577,971 km (0.102 R)
• M27: 26,309,478 km (0.102 R)
• M28: 26,702,023 km (0.118 R)
• M29: 28,931,331 km (0.117 R)
• M30: 34,804,244 km (0.055 R)
• M31: 37,955,523 km (0.101 R)
• M32: 39,857,211 km (0.084 R)
• M33: 40,505,119 km (0.07 R)
• M34: 41,954,872 km (0.095 R)
• M35: 43,849,529 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.4

Radius: 3

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 6.44 AU - 8.06 AU

Year: 13722 Days

Day: 21.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,518,685 km

• M1: 37,399 km (0.108 R)
• M2: 325,824 km (0.073 R)
• M3: 888,163 km (0.089 R)
• M4: 1,497,624 km (0.032 R)
• M5: 5,792,130 km (0.107 R)
• M6: 6,140,394 km (0.083 R)
• M7: 6,843,953 km (0.076 R)
• M8: 10,288,743 km (0.079 R)
• M9: 11,570,647 km (0.081 R)
• M10: 17,633,699 km (0.026 R)
• M11: 19,320,266 km (0.102 R)
• M12: 19,670,026 km (0.116 R)
• M13: 20,890,744 km (0.105 R)
• M14: 30,312,269 km (0.112 R)
• M15: 31,069,832 km (0.106 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 11,388 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit