🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.2

Radius: 13.3

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.42 AU - 0.7 AU

Year: 289 Days

Day: 13.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,133,927 km

• M1: 165,455 km (0.086 R)
• M2: 670,647 km (0.087 R)
• M3: 1,250,040 km (0.116 R)
• M4: 1,775,128 km (0.075 R)
• M5: 2,513,095 km (0.04 R)
• M6: 2,963,833 km (0.107 R)
• M7: 3,649,739 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.8

Radius: 10.8

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.56 AU - 0.6 AU

Year: 305 Days

Day: 8.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,133,927 km

• M1: 140,024 km (0.057 R)
• M2: 560,394 km (0.09 R)
• M3: 949,647 km (0.108 R)
• M4: 1,412,802 km (0.077 R)
• M5: 1,751,492 km (0.093 R)
• M6: 2,176,200 km (0.074 R)
• M7: 2,824,857 km (0.069 R)
• M8: 3,225,928 km (0.069 R)
• M9: 3,893,285 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.9

Radius: 8.2

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.82 AU - 0.88 AU

Year: 541 Days

Day: 6.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,133,927 km

• M1: 110,403 km (0.086 R)
• M2: 377,884 km (0.114 R)
• M3: 652,247 km (0.115 R)
• M4: 1,114,205 km (0.12 R)
• M5: 1,419,833 km (0.062 R)
• M6: 1,795,324 km (0.086 R)
• M7: 3,036,089 km (0.115 R)
• M8: 3,518,392 km (0.119 R)
• M9: 4,248,280 km (0.065 R)

Asteroid Belt

Center: 1.15 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.1

Radius: 11.3

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.33 AU - 1.55 AU

Year: 1193 Days

Day: 9.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,133,927 km

• M1: 140,622 km (0.07 R)
• M2: 643,121 km (0.106 R)
• M3: 1,080,097 km (0.109 R)
• M4: 1,743,862 km (0.095 R)
• M5: 2,401,794 km (0.08 R)
• M6: 3,218,897 km (0.034 R)
• M7: 3,754,757 km (0.112 R)
• M8: 5,318,952 km (0.084 R)
• M9: 5,876,354 km (0.095 R)
• M10: 6,472,202 km (0.078 R)
• M11: 7,454,013 km (0.061 R)
• M12: 8,395,433 km (0.055 R)
• M13: 9,923,425 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.8

Radius: 10.1

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.43 AU - 1.93 AU

Year: 1503 Days

Day: 5.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,133,927 km

• M1: 125,662 km (0.07 R)
• M2: 546,631 km (0.093 R)
• M3: 930,200 km (0.107 R)
• M4: 1,249,741 km (0.064 R)
• M5: 1,573,022 km (0.104 R)
• M6: 2,277,927 km (0.107 R)
• M7: 2,677,503 km (0.039 R)
• M8: 3,698,658 km (0.057 R)
• M9: 4,148,947 km (0.096 R)
• M10: 4,767,834 km (0.032 R)
• M11: 5,723,465 km (0.081 R)
• M12: 6,875,219 km (0.092 R)
• M13: 7,506,073 km (0.111 R)
• M14: 9,911,308 km (0.056 R)
• M15: 11,186,181 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.9

Radius: 13.9

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.72 AU - 1.76 AU

Year: 1584 Days

Day: 10 Hours

Environment

Temp: -207 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,133,927 km

• M1: 172,935 km (0.09 R)
• M2: 1,236,277 km (0.117 R)
• M3: 1,766,601 km (0.098 R)
• M4: 2,739,137 km (0.084 R)
• M5: 3,318,081 km (0.102 R)
• M6: 5,259,113 km (0.108 R)
• M7: 6,315,723 km (0.115 R)
• M8: 7,765,326 km (0.102 R)
• M9: 8,240,748 km (0.083 R)
• M10: 9,221,362 km (0.086 R)
• M11: 10,060,756 km (0.111 R)
• M12: 10,983,176 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.5

Radius: 10.8

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.41 AU - 2.25 AU

Year: 1709 Days

Day: 5.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,133,927 km

• M1: 134,339 km (0.103 R)
• M2: 658,979 km (0.043 R)
• M3: 1,308,981 km (0.06 R)
• M4: 1,732,942 km (0.118 R)
• M5: 2,137,454 km (0.096 R)
• M6: 3,108,644 km (0.079 R)
• M7: 3,451,522 km (0.078 R)
• M8: 4,214,322 km (0.04 R)
• M9: 5,108,169 km (0.034 R)
• M10: 5,755,180 km (0.104 R)
• M11: 6,746,415 km (0.051 R)
• M12: 7,612,736 km (0.095 R)
• M13: 8,710,037 km (0.104 R)
• M14: 9,065,481 km (0.104 R)
• M15: 9,771,135 km (0.112 R)
• M16: 10,549,193 km (0.03 R)
• M17: 11,444,686 km (0.106 R)
• M18: 12,471,077 km (0.104 R)
• M19: 12,881,873 km (0.071 R)
• M20: 14,570,833 km (0.093 R)
• M21: 15,633,426 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.5

Radius: 9.8

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.19 AU - 4.79 AU

Year: 6567 Days

Day: 13.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,133,927 km

• M1: 121,922 km (0.101 R)
• M2: 443,707 km (0.091 R)
• M3: 812,765 km (0.087 R)
• M4: 1,384,079 km (0.101 R)
• M5: 2,570,241 km (0.114 R)
• M6: 2,887,688 km (0.034 R)
• M7: 3,311,498 km (0.117 R)
• M8: 4,925,809 km (0.07 R)
• M9: 5,362,934 km (0.03 R)
• M10: 5,688,010 km (0.048 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 584.6

Radius: 4.5

Gravity: 28.87 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.3 AU - 9.42 AU

Year: 15211 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,133,927 km

• M1: 56,548 km (0.116 R)
• M2: 213,925 km (0.114 R)
• M3: 678,426 km (0.087 R)
• M4: 961,316 km (0.072 R)
• M5: 1,678,039 km (0.08 R)
• M6: 2,438,146 km (0.112 R)
• M7: 2,631,875 km (0.113 R)
• M8: 4,635,440 km (0.103 R)
• M9: 7,210,917 km (0.107 R)
• M10: 8,601,279 km (0.115 R)
• M11: 8,949,693 km (0.031 R)
• M12: 14,167,367 km (0.093 R)
• M13: 15,221,733 km (0.119 R)
• M14: 17,963,862 km (0.085 R)
• M15: 18,946,421 km (0.092 R)
• M16: 19,366,192 km (0.12 R)
• M17: 20,311,501 km (0.115 R)
• M18: 23,331,434 km (0.059 R)
• M19: 25,300,141 km (0.106 R)
• M20: 26,117,694 km (0.054 R)
• M21: 26,532,978 km (0.085 R)
• M22: 26,952,749 km (0.094 R)
• M23: 30,585,733 km (0.101 R)
• M24: 31,163,181 km (0.06 R)
• M25: 37,606,212 km (0.107 R)
• M26: 48,068,937 km (0.109 R)
• M27: 50,595,496 km (0.062 R)
• M28: 53,708,927 km (0.062 R)
• M29: 56,774,187 km (0.108 R)
• M30: 58,173,077 km (0.096 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: 174 - 11,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit