🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.7

Radius: 9.4

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.54 AU - 0.86 AU

Year: 378 Days

Day: 11.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,362,968 km

• M1: 116,986 km (0.072 R)
• M2: 414,237 km (0.087 R)
• M3: 1,284,597 km (0.1 R)
• M4: 1,833,920 km (0.106 R)
• M5: 2,232,449 km (0.039 R)
• M6: 2,609,884 km (0.077 R)
• M7: 3,216,653 km (0.094 R)
• M8: 3,638,819 km (0.081 R)
• M9: 3,966,438 km (0.053 R)
• M10: 4,286,278 km (0.079 R)
• M11: 5,383,279 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.3

Radius: 12.3

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.82 AU - 0.94 AU

Year: 533 Days

Day: 14.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,362,968 km

• M1: 153,039 km (0.059 R)
• M2: 614,099 km (0.114 R)
• M3: 1,988,006 km (0.066 R)
• M4: 2,705,477 km (0.12 R)
• M5: 3,166,837 km (0.108 R)
• M6: 3,563,272 km (0.04 R)
• M7: 4,487,637 km (0.1 R)
• M8: 5,023,048 km (0.037 R)
• M9: 6,550,292 km (0.095 R)
• M10: 6,991,756 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.6

Radius: 8.3

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.47 AU - 1.87 AU

Year: 1393 Days

Day: 8.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,362,968 km

• M1: 103,223 km (0.106 R)
• M2: 456,722 km (0.104 R)
• M3: 963,560 km (0.115 R)
• M4: 1,819,260 km (0.073 R)
• M5: 2,162,886 km (0.106 R)
• M6: 2,515,488 km (0.09 R)
• M7: 3,175,813 km (0.109 R)
• M8: 3,476,056 km (0.071 R)
• M9: 4,133,838 km (0.09 R)
• M10: 4,836,798 km (0.101 R)
• M11: 5,161,426 km (0.084 R)
• M12: 5,578,056 km (0.086 R)
• M13: 5,955,790 km (0.093 R)
• M14: 6,392,915 km (0.076 R)
• M15: 6,740,282 km (0.091 R)
• M16: 7,192,067 km (0.104 R)
• M17: 8,333,798 km (0.09 R)
• M18: 8,669,795 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.6

Radius: 9.6

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.67 AU - 1.71 AU

Year: 1419 Days

Day: 5.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,362,968 km

• M1: 119,379 km (0.028 R)
• M2: 846,425 km (0.033 R)
• M3: 1,300,305 km (0.077 R)
• M4: 1,631,963 km (0.1 R)
• M5: 2,132,518 km (0.082 R)
• M6: 2,956,952 km (0.085 R)
• M7: 3,490,567 km (0.041 R)
• M8: 4,232,722 km (0.089 R)
• M9: 4,631,849 km (0.104 R)
• M10: 5,097,547 km (0.085 R)
• M11: 5,549,782 km (0.094 R)
• M12: 5,958,633 km (0.091 R)
• M13: 6,559,717 km (0.087 R)
• M14: 6,862,354 km (0.114 R)
• M15: 7,174,415 km (0.101 R)
• M16: 7,605,107 km (0.102 R)
• M17: 8,312,555 km (0.06 R)
• M18: 8,848,714 km (0.119 R)
• M19: 9,218,819 km (0.08 R)
• M20: 10,769,102 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.2

Radius: 15

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.34 AU - 2.46 AU

Year: 2401 Days

Day: 12 Hours

Environment

Temp: -186 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,362,968 km

• M1: 190,737 km (0.075 R)
• M2: 953,986 km (0.061 R)
• M3: 1,595,910 km (0.119 R)
• M4: 2,139,698 km (0.106 R)
• M5: 3,430,130 km (0.111 R)
• M6: 4,164,206 km (0.114 R)
• M7: 5,739,771 km (0.119 R)
• M8: 6,807,451 km (0.061 R)
• M9: 7,343,311 km (0.068 R)
• M10: 7,843,117 km (0.11 R)
• M11: 9,016,563 km (0.061 R)
• M12: 9,924,323 km (0.075 R)
• M13: 10,458,836 km (0.093 R)
• M14: 13,016,361 km (0.112 R)
• M15: 16,018,491 km (0.063 R)
• M16: 16,862,672 km (0.119 R)
• M17: 17,405,263 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.6

Radius: 8

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.87 AU - 5.03 AU

Year: 6061 Days

Day: 11.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,362,968 km

• M1: 99,632 km (0.104 R)
• M2: 429,495 km (0.034 R)
• M3: 799,750 km (0.081 R)
• M4: 1,406,669 km (0.115 R)
• M5: 2,346,891 km (0.112 R)
• M6: 3,427,586 km (0.077 R)
• M7: 4,247,981 km (0.105 R)
• M8: 4,926,707 km (0.077 R)
• M9: 5,392,854 km (0.106 R)
• M10: 8,585,571 km (0.089 R)
• M11: 9,224,504 km (0.087 R)
• M12: 9,630,213 km (0.074 R)
• M13: 18,655,902 km (0.079 R)
• M14: 19,245,467 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304

Radius: 8.7

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.27 AU - 5.37 AU

Year: 6833 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,362,968 km

• M1: 108,608 km (0.072 R)
• M2: 396,883 km (0.103 R)
• M3: 683,064 km (0.1 R)
• M4: 1,372,261 km (0.076 R)
• M5: 1,862,793 km (0.083 R)
• M6: 2,700,092 km (0.096 R)
• M7: 3,136,319 km (0.082 R)
• M8: 3,747,127 km (0.06 R)
• M9: 4,582,033 km (0.09 R)
• M10: 5,620,990 km (0.07 R)
• M11: 6,396,207 km (0.113 R)
• M12: 6,907,532 km (0.114 R)
• M13: 7,274,645 km (0.116 R)
• M14: 9,031,672 km (0.086 R)
• M15: 10,436,097 km (0.076 R)
• M16: 12,219,902 km (0.074 R)
• M17: 15,629,986 km (0.039 R)
• M18: 20,774,656 km (0.069 R)
• M19: 21,895,294 km (0.044 R)
• M20: 23,952,713 km (0.098 R)
• M21: 24,486,479 km (0.115 R)
• M22: 25,419,969 km (0.109 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 156 - 18,887 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit