🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.9

Radius: 14.8

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.44 AU - 0.66 AU

Year: 282 Days

Day: 7.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 19,451,330 km

• M1: 184,005 km (0.091 R)
• M2: 680,521 km (0.098 R)
• M3: 1,154,746 km (0.119 R)
• M4: 1,917,695 km (0.109 R)
• M5: 2,407,927 km (0.049 R)
• M6: 3,088,897 km (0.097 R)
• M7: 3,793,952 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.2

Radius: 9.5

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.47 AU - 0.67 AU

Year: 297 Days

Day: 5.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 19,451,330 km

• M1: 118,182 km (0.115 R)
• M2: 494,720 km (0.099 R)
• M3: 811,120 km (0.098 R)
• M4: 1,107,623 km (0.109 R)
• M5: 1,405,771 km (0.12 R)
• M6: 1,837,361 km (0.087 R)
• M7: 2,132,966 km (0.114 R)
• M8: 2,460,885 km (0.101 R)
• M9: 2,768,608 km (0.079 R)
• M10: 3,131,383 km (0.12 R)
• M11: 3,473,214 km (0.099 R)
• M12: 3,806,817 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.5

Radius: 8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.47 AU - 0.77 AU

Year: 337 Days

Day: 6.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,451,330 km

• M1: 99,483 km (0.097 R)
• M2: 366,365 km (0.072 R)
• M3: 685,009 km (0.083 R)
• M4: 1,156,990 km (0.074 R)
• M5: 1,773,333 km (0.11 R)
• M6: 2,196,396 km (0.085 R)
• M7: 2,517,433 km (0.117 R)
• M8: 2,842,808 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.3

Radius: 13.3

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.65 AU - 0.75 AU

Year: 404 Days

Day: 12.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,451,330 km

• M1: 165,754 km (0.116 R)
• M2: 729,738 km (0.06 R)
• M3: 1,146,967 km (0.072 R)
• M4: 2,377,709 km (0.108 R)
• M5: 2,805,708 km (0.026 R)
• M6: 3,627,599 km (0.051 R)
• M7: 4,047,969 km (0.089 R)
• M8: 4,679,571 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.8

Radius: 8.9

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.77 AU - 0.85 AU

Year: 503 Days

Day: 12.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,451,330 km

• M1: 111,151 km (0.114 R)
• M2: 440,416 km (0.035 R)
• M3: 841,638 km (0.082 R)
• M4: 1,138,589 km (0.1 R)
• M5: 1,544,897 km (0.113 R)
• M6: 2,662,393 km (0.118 R)
• M7: 3,071,394 km (0.092 R)
• M8: 3,673,675 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.6

Radius: 10.1

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.79 AU - 1.25 AU

Year: 711 Days

Day: 11.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,451,330 km

• M1: 130,449 km (0.118 R)
• M2: 459,714 km (0.095 R)
• M3: 790,625 km (0.096 R)
• M4: 1,447,808 km (0.119 R)
• M5: 1,798,166 km (0.078 R)
• M6: 2,244,716 km (0.072 R)
• M7: 2,962,786 km (0.057 R)
• M8: 3,589,900 km (0.048 R)
• M9: 4,365,266 km (0.104 R)
• M10: 5,283,946 km (0.096 R)
• M11: 5,990,796 km (0.093 R)
• M12: 6,326,793 km (0.102 R)
• M13: 6,738,187 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.4

Radius: 14.8

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.82 AU - 1.34 AU

Year: 775 Days

Day: 8.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 19,451,330 km

• M1: 184,005 km (0.096 R)
• M2: 810,820 km (0.097 R)
• M3: 1,304,493 km (0.064 R)
• M4: 1,819,708 km (0.031 R)
• M5: 2,583,705 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706

Radius: 10.8

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.41 AU - 2.17 AU

Year: 1653 Days

Day: 8.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 19,451,330 km

• M1: 134,488 km (0.12 R)
• M2: 494,122 km (0.119 R)
• M3: 837,000 km (0.114 R)
• M4: 1,212,491 km (0.08 R)
• M5: 1,722,320 km (0.087 R)
• M6: 2,142,690 km (0.111 R)
• M7: 3,056,883 km (0.08 R)
• M8: 3,495,354 km (0.109 R)
• M9: 3,851,547 km (0.101 R)
• M10: 4,213,424 km (0.088 R)
• M11: 4,597,891 km (0.074 R)
• M12: 6,328,140 km (0.059 R)
• M13: 6,912,469 km (0.119 R)
• M14: 7,671,977 km (0.117 R)
• M15: 8,072,152 km (0.12 R)
• M16: 9,070,717 km (0.074 R)
• M17: 9,421,375 km (0.109 R)
• M18: 10,528,100 km (0.084 R)
• M19: 14,453,997 km (0.026 R)

Planet 9 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.3

Radius: 14.9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.83 AU - 1.89 AU

Year: 1751 Days

Day: 9 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,451,330 km

• M1: 185,352 km (0.108 R)
• M2: 736,919 km (0.097 R)
• M3: 1,598,304 km (0.111 R)
• M4: 2,091,977 km (0.093 R)
• M5: 2,729,862 km (0.069 R)
• M6: 4,326,520 km (0.118 R)
• M7: 4,799,399 km (0.07 R)
• M8: 6,184,376 km (0.114 R)
• M9: 7,994,809 km (0.113 R)
• M10: 9,471,041 km (0.057 R)
• M11: 12,131,789 km (0.115 R)
• M12: 13,447,801 km (0.052 R)
• M13: 14,161,832 km (0.067 R)
• M14: 14,637,254 km (0.06 R)

Planet 10 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.1

Radius: 9.1

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.01 AU - 2.41 AU

Year: 2268 Days

Day: 8.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 19,451,330 km

• M1: 113,395 km (0.108 R)
• M2: 449,093 km (0.057 R)
• M3: 758,760 km (0.069 R)
• M4: 1,045,839 km (0.1 R)
• M5: 1,397,843 km (0.115 R)
• M6: 1,958,835 km (0.068 R)
• M7: 3,226,377 km (0.091 R)
• M8: 4,269,374 km (0.115 R)
• M9: 5,597,354 km (0.112 R)
• M10: 6,746,116 km (0.065 R)
• M11: 8,013,210 km (0.062 R)
• M12: 8,804,732 km (0.05 R)
• M13: 9,219,717 km (0.069 R)
• M14: 10,428,318 km (0.118 R)
• M15: 10,775,684 km (0.103 R)
• M16: 11,452,615 km (0.116 R)
• M17: 11,863,859 km (0.068 R)
• M18: 13,023,841 km (0.076 R)
• M19: 14,446,966 km (0.029 R)
• M20: 15,220,686 km (0.053 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 14,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit