🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.54 AU - 0.76 AU

Year: 191 Days

Day: 45.4 Hours

Environment

Temp: 147 °C

Axial Tilt: 15.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.76 AU - 0.78 AU

Year: 247 Days

Day: 22.6 Hours

Environment

Temp: 137 °C

Axial Tilt: 35.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.58 AU - 3.48 AU

Year: 1926 Days

Day: 23.7 Hours

Environment

Temp: -93 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.77 AU - 3.79 AU

Year: 2170 Days

Day: 44.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,894,541 km

• M1: 1,840,503 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.4

Radius: 10.5

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.23 AU - 7.95 AU

Year: 6179 Days

Day: 14.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,894,541 km

• M1: 131,796 km (0.076 R)
• M2: 494,122 km (0.062 R)
• M3: 829,670 km (0.064 R)
• M4: 1,532,630 km (0.111 R)
• M5: 2,386,385 km (0.114 R)
• M6: 3,424,744 km (0.025 R)
• M7: 4,504,541 km (0.084 R)
• M8: 4,873,749 km (0.064 R)
• M9: 6,261,868 km (0.071 R)
• M10: 7,622,012 km (0.083 R)
• M11: 10,423,531 km (0.119 R)
• M12: 10,840,311 km (0.059 R)
• M13: 12,962,955 km (0.111 R)
• M14: 16,188,734 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.7

Radius: 10.9

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.12 AU - 7.66 AU

Year: 7338 Days

Day: 9.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,894,541 km

• M1: 135,685 km (0.076 R)
• M2: 648,058 km (0.045 R)
• M3: 1,428,660 km (0.08 R)
• M4: 2,811,692 km (0.103 R)
• M5: 4,334,748 km (0.117 R)
• M6: 5,779,415 km (0.109 R)
• M7: 7,595,981 km (0.08 R)
• M8: 12,680,364 km (0.036 R)
• M9: 14,195,043 km (0.117 R)
• M10: 14,591,926 km (0.045 R)
• M11: 16,813,903 km (0.063 R)
• M12: 17,645,518 km (0.092 R)
• M13: 20,592,446 km (0.1 R)
• M14: 22,296,366 km (0.06 R)
• M15: 24,495,155 km (0.055 R)
• M16: 25,397,231 km (0.117 R)
• M17: 26,406,567 km (0.07 R)
• M18: 32,148,283 km (0.09 R)
• M19: 33,031,060 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.6

Radius: 12.9

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.72 AU - 8.1 AU

Year: 7367 Days

Day: 9.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,894,541 km

• M1: 160,519 km (0.104 R)
• M2: 579,243 km (0.105 R)
• M3: 1,081,293 km (0.032 R)
• M4: 2,546,305 km (0.074 R)
• M5: 3,830,603 km (0.063 R)
• M6: 5,340,943 km (0.074 R)
• M7: 6,559,567 km (0.049 R)
• M8: 7,015,691 km (0.114 R)
• M9: 7,527,914 km (0.049 R)
• M10: 9,665,070 km (0.078 R)
• M11: 10,257,178 km (0.075 R)
• M12: 10,918,251 km (0.106 R)
• M13: 12,621,423 km (0.101 R)
• M14: 17,769,534 km (0.067 R)
• M15: 21,224,647 km (0.104 R)
• M16: 23,035,379 km (0.12 R)
• M17: 24,016,592 km (0.059 R)
• M18: 27,461,681 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.6

Radius: 13.2

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 7.29 AU - 8.67 AU

Year: 8234 Days

Day: 5.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,894,541 km

• M1: 164,109 km (0.096 R)
• M2: 581,637 km (0.078 R)
• M3: 1,005,447 km (0.062 R)
• M4: 1,852,620 km (0.086 R)
• M5: 2,733,003 km (0.102 R)
• M6: 4,085,817 km (0.1 R)
• M7: 4,821,091 km (0.087 R)
• M8: 6,337,265 km (0.065 R)
• M9: 7,166,037 km (0.111 R)
• M10: 7,606,902 km (0.096 R)
• M11: 9,412,548 km (0.035 R)
• M12: 9,893,356 km (0.103 R)
• M13: 11,167,481 km (0.054 R)
• M14: 12,490,973 km (0.07 R)
• M15: 13,309,872 km (0.085 R)
• M16: 15,780,631 km (0.111 R)
• M17: 18,245,854 km (0.09 R)
• M18: 19,223,775 km (0.057 R)
• M19: 24,464,189 km (0.104 R)
• M20: 25,008,276 km (0.078 R)
• M21: 33,497,656 km (0.092 R)
• M22: 35,653,661 km (0.118 R)
• M23: 43,199,976 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.8

Radius: 8.6

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 8.6 AU - 8.72 AU

Year: 9308 Days

Day: 8.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,894,541 km

• M1: 107,112 km (0.092 R)
• M2: 491,279 km (0.059 R)
• M3: 1,328,579 km (0.113 R)
• M4: 1,635,853 km (0.053 R)
• M5: 1,960,330 km (0.08 R)
• M6: 2,955,755 km (0.097 R)
• M7: 3,645,401 km (0.056 R)
• M8: 4,255,611 km (0.088 R)
• M9: 4,680,768 km (0.066 R)
• M10: 5,773,281 km (0.102 R)
• M11: 6,194,848 km (0.088 R)
• M12: 7,283,322 km (0.116 R)
• M13: 7,737,202 km (0.09 R)
• M14: 8,785,434 km (0.086 R)
• M15: 10,295,625 km (0.098 R)
• M16: 15,237,142 km (0.109 R)
• M17: 15,917,213 km (0.089 R)
• M18: 17,007,932 km (0.109 R)
• M19: 18,631,667 km (0.042 R)
• M20: 18,911,864 km (0.097 R)
• M21: 19,988,220 km (0.092 R)
• M22: 21,409,699 km (0.062 R)
• M23: 23,299,868 km (0.028 R)
• M24: 29,729,585 km (0.118 R)
• M25: 33,193,673 km (0.049 R)
• M26: 34,230,835 km (0.095 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.1

Radius: 8.6

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.44 AU - 9.8 AU

Year: 10060 Days

Day: 9.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,894,541 km

• M1: 106,962 km (0.073 R)
• M2: 497,563 km (0.11 R)
• M3: 1,016,368 km (0.117 R)
• M4: 2,684,384 km (0.115 R)
• M5: 3,209,622 km (0.116 R)
• M6: 3,628,945 km (0.079 R)
• M7: 5,951,302 km (0.106 R)
• M8: 6,227,909 km (0.06 R)
• M9: 8,585,571 km (0.053 R)
• M10: 8,894,641 km (0.105 R)
• M11: 9,441,870 km (0.118 R)
• M12: 10,908,078 km (0.094 R)
• M13: 14,163,029 km (0.095 R)
• M14: 15,878,468 km (0.081 R)
• M15: 16,615,686 km (0.094 R)
• M16: 23,099,557 km (0.113 R)
• M17: 30,576,907 km (0.106 R)
• M18: 32,884,903 km (0.094 R)
• M19: 37,257,350 km (0.086 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 19,371 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit