🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.07 AU - 1.23 AU

Year: 538 Days

Day: 18.6 Hours

Environment

Temp: -76 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 31,121,675 km

• M1: 178,919 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.29 AU - 1.55 AU

Year: 739 Days

Day: 40.8 Hours

Environment

Temp: -98 °C

Axial Tilt: 17 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.36 AU - 1.82 AU

Year: 875 Days

Day: 39.2 Hours

Environment

Temp: -111 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 31,121,675 km

• M1: 23,636 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.75 AU - 2.01 AU

Year: 1125 Days

Day: 43.1 Hours

Environment

Temp: -107 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.86 AU - 2.5 AU

Year: 1405 Days

Day: 18.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.6

Radius: 14.6

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.36 AU - 3.5 AU

Year: 2189 Days

Day: 10.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,121,675 km

• M1: 185,202 km (0.072 R)
• M2: 686,505 km (0.113 R)
• M3: 1,199,925 km (0.108 R)
• M4: 1,663,379 km (0.071 R)
• M5: 2,188,766 km (0.083 R)
• M6: 2,810,944 km (0.077 R)
• M7: 3,366,102 km (0.079 R)
• M8: 3,957,462 km (0.09 R)
• M9: 4,638,432 km (0.04 R)
• M10: 5,651,508 km (0.116 R)
• M11: 6,969,316 km (0.068 R)
• M12: 7,671,977 km (0.087 R)
• M13: 8,671,441 km (0.1 R)
• M14: 9,756,175 km (0.093 R)
• M15: 10,278,271 km (0.05 R)
• M16: 11,608,047 km (0.072 R)
• M17: 12,678,719 km (0.089 R)
• M18: 13,259,158 km (0.114 R)
• M19: 14,970,558 km (0.08 R)
• M20: 15,572,540 km (0.071 R)
• M21: 16,287,169 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.4

Radius: 14.6

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.14 AU - 3.28 AU

Year: 2511 Days

Day: 11.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,121,675 km

• M1: 181,612 km (0.066 R)
• M2: 689,197 km (0.061 R)
• M3: 1,202,168 km (0.109 R)
• M4: 1,690,905 km (0.1 R)
• M5: 2,767,860 km (0.047 R)
• M6: 3,625,804 km (0.107 R)
• M7: 4,306,175 km (0.089 R)
• M8: 5,819,208 km (0.099 R)
• M9: 6,303,007 km (0.104 R)
• M10: 8,480,404 km (0.098 R)
• M11: 9,573,815 km (0.108 R)
• M12: 10,327,938 km (0.104 R)
• M13: 11,161,946 km (0.08 R)
• M14: 12,740,503 km (0.062 R)
• M15: 13,653,648 km (0.111 R)
• M16: 14,512,190 km (0.097 R)
• M17: 15,610,239 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.4

Radius: 12.3

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.1 AU - 7.6 AU

Year: 7827 Days

Day: 7.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,121,675 km

• M1: 153,039 km (0.112 R)
• M2: 715,078 km (0.028 R)
• M3: 1,102,836 km (0.085 R)
• M4: 1,485,507 km (0.055 R)
• M5: 2,533,590 km (0.088 R)
• M6: 3,010,956 km (0.091 R)
• M7: 3,571,051 km (0.097 R)
• M8: 4,844,877 km (0.026 R)
• M9: 5,648,367 km (0.086 R)
• M10: 9,776,071 km (0.093 R)
• M11: 12,078,682 km (0.051 R)
• M12: 16,083,417 km (0.116 R)
• M13: 17,730,190 km (0.12 R)
• M14: 18,841,553 km (0.102 R)
• M15: 20,519,592 km (0.074 R)
• M16: 22,454,341 km (0.038 R)
• M17: 23,507,061 km (0.103 R)
• M18: 27,043,555 km (0.058 R)
• M19: 29,749,332 km (0.097 R)
• M20: 30,136,192 km (0.078 R)
• M21: 31,316,968 km (0.062 R)
• M22: 32,222,633 km (0.039 R)
• M23: 33,875,839 km (0.066 R)
• M24: 34,403,770 km (0.063 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.7

Radius: 13.7

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 6.87 AU - 10.03 AU

Year: 10723 Days

Day: 7.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 31,121,675 km

• M1: 171,738 km (0.086 R)
• M2: 902,524 km (0.055 R)
• M3: 1,573,620 km (0.068 R)
• M4: 2,398,652 km (0.115 R)
• M5: 3,005,122 km (0.093 R)
• M6: 5,367,123 km (0.098 R)
• M7: 5,823,546 km (0.103 R)
• M8: 6,376,908 km (0.041 R)
• M9: 8,166,548 km (0.091 R)
• M10: 10,670,816 km (0.09 R)
• M11: 12,209,131 km (0.056 R)
• M12: 14,012,085 km (0.116 R)
• M13: 16,867,758 km (0.088 R)
• M14: 17,496,369 km (0.105 R)
• M15: 19,174,408 km (0.085 R)
• M16: 19,936,459 km (0.101 R)
• M17: 23,618,512 km (0.073 R)
• M18: 25,030,267 km (0.094 R)
• M19: 25,665,459 km (0.114 R)
• M20: 28,608,050 km (0.068 R)
• M21: 32,406,489 km (0.093 R)
• M22: 34,593,610 km (0.074 R)
• M23: 35,609,380 km (0.063 R)
• M24: 36,297,530 km (0.06 R)
• M25: 41,617,828 km (0.097 R)
• M26: 43,544,200 km (0.025 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.5

Radius: 11.5

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 8.86 AU - 9.16 AU

Year: 11807 Days

Day: 10 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,121,675 km

• M1: 143,315 km (0.091 R)
• M2: 650,601 km (0.049 R)
• M3: 1,074,861 km (0.092 R)
• M4: 1,505,703 km (0.052 R)
• M5: 2,037,822 km (0.046 R)
• M6: 2,405,534 km (0.119 R)
• M7: 3,217,701 km (0.052 R)
• M8: 3,743,238 km (0.103 R)
• M9: 5,467,653 km (0.118 R)
• M10: 6,187,368 km (0.092 R)
• M11: 9,253,227 km (0.096 R)
• M12: 12,747,235 km (0.079 R)
• M13: 13,528,285 km (0.091 R)
• M14: 15,014,241 km (0.099 R)
• M15: 15,649,882 km (0.09 R)
• M16: 16,974,870 km (0.092 R)
• M17: 18,373,311 km (0.087 R)
• M18: 19,167,826 km (0.063 R)
• M19: 24,581,773 km (0.102 R)
• M20: 25,464,998 km (0.093 R)
• M21: 30,567,333 km (0.112 R)
• M22: 31,028,842 km (0.066 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 10,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit