🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.6

Radius: 9.4

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.56 AU - 0.86 AU

Year: 386 Days

Day: 9.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,015,659 km

• M1: 116,836 km (0.096 R)
• M2: 416,780 km (0.05 R)
• M3: 720,314 km (0.045 R)
• M4: 1,053,917 km (0.067 R)
• M5: 1,428,061 km (0.107 R)
• M6: 2,287,651 km (0.079 R)
• M7: 3,041,624 km (0.114 R)
• M8: 4,284,633 km (0.087 R)
• M9: 4,795,509 km (0.095 R)
• M10: 5,096,650 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.7

Radius: 13.7

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.6 AU - 0.88 AU

Year: 411 Days

Day: 5.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,015,659 km

• M1: 170,542 km (0.118 R)
• M2: 663,766 km (0.049 R)
• M3: 1,126,472 km (0.081 R)
• M4: 1,602,044 km (0.065 R)
• M5: 2,076,867 km (0.095 R)
• M6: 2,544,361 km (0.038 R)
• M7: 3,220,992 km (0.032 R)
• M8: 4,078,636 km (0.115 R)
• M9: 4,596,395 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830

Radius: 12

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.03 AU - 1.13 AU

Year: 725 Days

Day: 8.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,015,659 km

• M1: 149,299 km (0.053 R)
• M2: 720,763 km (0.109 R)
• M3: 1,157,888 km (0.111 R)
• M4: 1,570,778 km (0.089 R)
• M5: 2,045,003 km (0.046 R)
• M6: 2,503,520 km (0.057 R)
• M7: 3,106,400 km (0.025 R)
• M8: 3,518,692 km (0.084 R)
• M9: 4,059,039 km (0.112 R)
• M10: 4,620,629 km (0.083 R)
• M11: 5,178,929 km (0.119 R)
• M12: 6,182,132 km (0.105 R)
• M13: 6,730,259 km (0.08 R)
• M14: 7,684,244 km (0.079 R)
• M15: 8,193,924 km (0.101 R)
• M16: 8,856,194 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.7

Radius: 13.9

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.9 AU - 1.44 AU

Year: 817 Days

Day: 10.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,015,659 km

• M1: 172,935 km (0.048 R)
• M2: 613,351 km (0.108 R)
• M3: 1,301,202 km (0.105 R)
• M4: 2,810,196 km (0.12 R)
• M5: 3,434,019 km (0.038 R)
• M6: 4,020,592 km (0.111 R)
• M7: 4,780,250 km (0.045 R)
• M8: 5,553,971 km (0.102 R)
• M9: 6,108,081 km (0.118 R)
• M10: 6,631,524 km (0.118 R)
• M11: 7,184,887 km (0.068 R)
• M12: 7,970,575 km (0.06 R)
• M13: 8,758,507 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.2

Radius: 14.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.76 AU - 2.94 AU

Year: 3107 Days

Day: 14.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,015,659 km

• M1: 180,265 km (0.101 R)
• M2: 963,709 km (0.029 R)
• M3: 1,820,008 km (0.041 R)
• M4: 2,338,514 km (0.12 R)
• M5: 2,939,598 km (0.048 R)
• M6: 4,434,530 km (0.096 R)
• M7: 6,080,405 km (0.071 R)
• M8: 10,665,580 km (0.078 R)
• M9: 12,511,917 km (0.105 R)
• M10: 13,920,979 km (0.089 R)
• M11: 16,014,452 km (0.103 R)
• M12: 18,135,451 km (0.109 R)
• M13: 21,010,572 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 14.4

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.47 AU - 4.07 AU

Year: 3818 Days

Day: 14 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,015,659 km

• M1: 179,069 km (0.114 R)
• M2: 721,361 km (0.118 R)
• M3: 1,315,863 km (0.102 R)
• M4: 1,774,081 km (0.058 R)
• M5: 2,372,173 km (0.07 R)
• M6: 3,982,146 km (0.071 R)
• M7: 4,942,863 km (0.098 R)
• M8: 5,506,548 km (0.039 R)
• M9: 6,053,179 km (0.115 R)
• M10: 7,357,822 km (0.099 R)
• M11: 8,131,392 km (0.092 R)
• M12: 10,049,686 km (0.088 R)
• M13: 11,182,590 km (0.081 R)
• M14: 14,873,918 km (0.116 R)
• M15: 19,050,391 km (0.113 R)
• M16: 19,506,964 km (0.111 R)
• M17: 20,442,100 km (0.075 R)
• M18: 21,267,132 km (0.093 R)
• M19: 24,330,897 km (0.075 R)
• M20: 25,888,660 km (0.091 R)
• M21: 27,594,823 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.1

Radius: 9

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.84 AU - 4.18 AU

Year: 4246 Days

Day: 9.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,015,659 km

• M1: 111,899 km (0.083 R)
• M2: 664,514 km (0.091 R)
• M3: 1,073,514 km (0.076 R)
• M4: 1,766,302 km (0.079 R)
• M5: 2,190,262 km (0.05 R)
• M6: 2,551,840 km (0.114 R)
• M7: 4,121,122 km (0.104 R)
• M8: 5,200,620 km (0.068 R)
• M9: 6,162,834 km (0.05 R)
• M10: 6,458,439 km (0.049 R)
• M11: 6,856,818 km (0.114 R)
• M12: 7,568,605 km (0.118 R)
• M13: 9,176,782 km (0.058 R)
• M14: 9,602,239 km (0.107 R)
• M15: 10,244,462 km (0.115 R)
• M16: 11,348,943 km (0.047 R)
• M17: 13,248,986 km (0.058 R)
• M18: 16,007,421 km (0.03 R)
• M19: 18,085,784 km (0.111 R)
• M20: 19,315,030 km (0.08 R)
• M21: 20,664,851 km (0.113 R)
• M22: 22,007,792 km (0.109 R)
• M23: 23,911,724 km (0.075 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: 341 - 18,193 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit