🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.52 AU - 0.58 AU

Year: 268 Days

Day: 24.3 Hours

Environment

Temp: -113 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,157,724 km

• M1: 37,250 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.5

Radius: 9.1

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.73 AU - 0.89 AU

Year: 478 Days

Day: 9.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,157,724 km

• M1: 113,694 km (0.095 R)
• M2: 431,739 km (0.096 R)
• M3: 744,100 km (0.107 R)
• M4: 1,235,828 km (0.051 R)
• M5: 1,902,287 km (0.087 R)
• M6: 2,452,657 km (0.034 R)
• M7: 2,852,083 km (0.087 R)
• M8: 3,683,548 km (0.118 R)
• M9: 4,169,293 km (0.066 R)
• M10: 4,784,439 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.5

Radius: 8.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.15 AU - 1.37 AU

Year: 928 Days

Day: 10.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,157,724 km

• M1: 108,159 km (0.041 R)
• M2: 620,382 km (0.101 R)
• M3: 1,029,084 km (0.055 R)
• M4: 1,626,278 km (0.09 R)
• M5: 1,982,920 km (0.11 R)
• M6: 2,309,193 km (0.06 R)
• M7: 2,897,711 km (0.113 R)
• M8: 3,261,982 km (0.113 R)
• M9: 4,043,182 km (0.059 R)
• M10: 5,005,096 km (0.042 R)
• M11: 5,368,170 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.5

Radius: 14.2

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.15 AU - 1.53 AU

Year: 1018 Days

Day: 9.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,157,724 km

• M1: 176,675 km (0.086 R)
• M2: 774,468 km (0.088 R)
• M3: 4,172,434 km (0.115 R)
• M4: 4,866,868 km (0.1 R)
• M5: 6,095,365 km (0.086 R)
• M6: 7,846,857 km (0.112 R)
• M7: 8,580,186 km (0.082 R)
• M8: 9,706,807 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.4

Radius: 14

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.72 AU - 3.94 AU

Year: 4917 Days

Day: 9.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,157,724 km

• M1: 174,132 km (0.06 R)
• M2: 820,694 km (0.099 R)
• M3: 1,365,230 km (0.071 R)
• M4: 2,019,870 km (0.025 R)
• M5: 3,565,665 km (0.11 R)
• M6: 4,337,590 km (0.071 R)
• M7: 9,898,293 km (0.047 R)
• M8: 14,991,951 km (0.107 R)
• M9: 15,947,582 km (0.113 R)
• M10: 16,887,206 km (0.102 R)
• M11: 20,308,360 km (0.11 R)
• M12: 21,214,624 km (0.066 R)
• M13: 22,487,402 km (0.055 R)
• M14: 23,038,371 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.9

Radius: 8.7

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.5 AU - 4.56 AU

Year: 6325 Days

Day: 6.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,157,724 km

• M1: 108,309 km (0.033 R)
• M2: 411,843 km (0.036 R)
• M3: 839,992 km (0.078 R)
• M4: 1,472,641 km (0.111 R)
• M5: 2,122,195 km (0.11 R)
• M6: 2,896,664 km (0.116 R)
• M7: 3,329,301 km (0.091 R)
• M8: 4,916,384 km (0.105 R)
• M9: 7,627,098 km (0.113 R)
• M10: 8,159,816 km (0.105 R)
• M11: 8,717,068 km (0.119 R)
• M12: 10,242,368 km (0.08 R)
• M13: 10,584,947 km (0.09 R)
• M14: 11,383,650 km (0.096 R)
• M15: 13,051,068 km (0.088 R)
• M16: 15,426,084 km (0.058 R)
• M17: 15,933,520 km (0.098 R)
• M18: 16,452,026 km (0.11 R)
• M19: 19,085,996 km (0.086 R)
• M20: 20,200,799 km (0.062 R)
• M21: 21,988,942 km (0.11 R)
• M22: 23,954,808 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 955.3

Radius: 5

Gravity: 38.21 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.43 AU - 6.51 AU

Year: 9569 Days

Day: 16.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 46,157,724 km

• M1: 62,233 km (0.118 R)
• M2: 331,060 km (0.07 R)
• M3: 816,655 km (0.05 R)
• M4: 1,342,192 km (0.115 R)
• M5: 1,962,874 km (0.117 R)
• M6: 2,801,220 km (0.079 R)
• M7: 3,411,430 km (0.1 R)
• M8: 4,191,882 km (0.112 R)
• M9: 4,608,512 km (0.037 R)
• M10: 4,795,360 km (0.082 R)
• M11: 5,184,165 km (0.096 R)
• M12: 6,477,139 km (0.103 R)
• M13: 7,033,643 km (0.085 R)
• M14: 7,198,201 km (0.118 R)
• M15: 7,621,264 km (0.119 R)
• M16: 8,424,155 km (0.104 R)
• M17: 8,893,743 km (0.103 R)
• M18: 11,736,252 km (0.108 R)
• M19: 13,111,805 km (0.083 R)
• M20: 14,195,192 km (0.078 R)
• M21: 20,602,170 km (0.112 R)
• M22: 22,150,658 km (0.103 R)
• M23: 24,805,870 km (0.11 R)
• M24: 25,092,051 km (0.114 R)
• M25: 25,574,055 km (0.118 R)
• M26: 33,562,731 km (0.091 R)
• M27: 34,147,659 km (0.055 R)
• M28: 34,620,538 km (0.107 R)
• M29: 34,978,077 km (0.101 R)
• M30: 37,927,249 km (0.104 R)
• M31: 39,203,468 km (0.092 R)
• M32: 40,508,111 km (0.039 R)
• M33: 43,895,755 km (0.078 R)
• M34: 50,920,123 km (0.108 R)
• M35: 51,537,214 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136.5

Radius: 6.8

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 5.87 AU - 6.49 AU

Year: 10078 Days

Day: 22.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,157,724 km

• M1: 84,672 km (0.064 R)
• M2: 734,077 km (0.116 R)
• M3: 1,197,082 km (0.105 R)
• M4: 2,253,692 km (0.118 R)
• M5: 2,997,642 km (0.114 R)
• M6: 3,719,751 km (0.091 R)
• M7: 7,509,215 km (0.102 R)
• M8: 8,675,629 km (0.065 R)
• M9: 12,016,748 km (0.054 R)
• M10: 13,451,242 km (0.102 R)
• M11: 13,709,598 km (0.091 R)
• M12: 26,493,185 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.4

Radius: 4.8

Gravity: 16.6 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.1 AU - 8.28 AU

Year: 12647 Days

Day: 24.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 46,157,724 km

• M1: 59,690 km (0.086 R)
• M2: 252,072 km (0.095 R)
• M3: 530,773 km (0.109 R)
• M4: 737,667 km (0.092 R)
• M5: 888,761 km (0.11 R)
• M6: 2,053,081 km (0.04 R)
• M7: 2,228,410 km (0.088 R)
• M8: 3,573,444 km (0.104 R)
• M9: 4,121,870 km (0.109 R)
• M10: 4,694,531 km (0.069 R)
• M11: 5,318,803 km (0.1 R)
• M12: 8,777,655 km (0.072 R)
• M13: 10,574,625 km (0.103 R)
• M14: 12,144,056 km (0.118 R)
• M15: 13,986,503 km (0.081 R)
• M16: 18,513,484 km (0.116 R)
• M17: 21,434,682 km (0.069 R)
• M18: 28,670,432 km (0.057 R)
• M19: 29,585,672 km (0.106 R)
• M20: 29,998,562 km (0.108 R)
• M21: 32,887,147 km (0.056 R)
• M22: 36,425,885 km (0.073 R)
• M23: 39,085,884 km (0.102 R)
• M24: 40,463,082 km (0.091 R)
• M25: 44,788,555 km (0.098 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: 223 - 11,034 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit