🌌 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: 572.5

Radius: 11.4

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.43 AU - 0.67 AU

Year: 287 Days

Day: 7.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,072,561 km

• M1: 141,819 km (0.062 R)
• M2: 588,219 km (0.1 R)
• M3: 1,120,787 km (0.057 R)
• M4: 1,561,951 km (0.046 R)
• M5: 1,979,030 km (0.096 R)
• M6: 2,437,099 km (0.118 R)
• M7: 2,880,208 km (0.109 R)
• M8: 3,569,704 km (0.093 R)
• M9: 3,965,690 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.9

Radius: 9.5

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.44 AU - 0.72 AU

Year: 310 Days

Day: 10.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 69.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,072,561 km

• M1: 118,182 km (0.09 R)
• M2: 507,885 km (0.088 R)
• M3: 837,299 km (0.111 R)
• M4: 1,303,297 km (0.113 R)
• M5: 1,628,074 km (0.045 R)
• M6: 1,950,607 km (0.078 R)
• M7: 2,300,366 km (0.032 R)
• M8: 2,835,328 km (0.108 R)
• M9: 3,276,642 km (0.033 R)
• M10: 3,830,304 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.6

Radius: 14.1

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.98 AU - 1.14 AU

Year: 767 Days

Day: 10.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,072,561 km

• M1: 175,329 km (0.091 R)
• M2: 987,645 km (0.085 R)
• M3: 1,441,525 km (0.106 R)
• M4: 2,238,732 km (0.066 R)
• M5: 2,873,326 km (0.049 R)
• M6: 3,788,865 km (0.109 R)
• M7: 4,784,290 km (0.083 R)
• M8: 5,805,145 km (0.085 R)
• M9: 6,785,311 km (0.107 R)
• M10: 7,482,138 km (0.102 R)
• M11: 8,459,012 km (0.115 R)
• M12: 9,211,638 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.9

Radius: 13.9

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.75 AU - 1.99 AU

Year: 1798 Days

Day: 8.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,072,561 km

• M1: 175,030 km (0.069 R)
• M2: 735,274 km (0.11 R)
• M3: 1,630,318 km (0.047 R)
• M4: 2,231,851 km (0.087 R)
• M5: 3,341,867 km (0.087 R)
• M6: 3,995,161 km (0.053 R)
• M7: 4,792,817 km (0.072 R)
• M8: 8,034,602 km (0.041 R)
• M9: 9,370,960 km (0.083 R)
• M10: 11,983,388 km (0.061 R)
• M11: 13,032,966 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.1

Radius: 12.5

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.8 AU - 2.16 AU

Year: 1958 Days

Day: 8.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,072,561 km

• M1: 156,031 km (0.067 R)
• M2: 623,225 km (0.088 R)
• M3: 1,115,551 km (0.092 R)
• M4: 1,625,680 km (0.1 R)
• M5: 2,239,331 km (0.118 R)
• M6: 3,050,749 km (0.118 R)
• M7: 5,953,546 km (0.116 R)
• M8: 7,361,412 km (0.118 R)
• M9: 7,897,122 km (0.11 R)
• M10: 8,716,918 km (0.06 R)
• M11: 10,196,441 km (0.074 R)
• M12: 11,637,817 km (0.102 R)
• M13: 12,038,739 km (0.09 R)
• M14: 13,603,383 km (0.101 R)
• M15: 15,252,101 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.5

Radius: 14.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.59 AU - 2.43 AU

Year: 2003 Days

Day: 5.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,072,561 km

• M1: 179,517 km (0.108 R)
• M2: 867,368 km (0.112 R)
• M3: 1,388,717 km (0.115 R)
• M4: 2,042,609 km (0.03 R)
• M5: 2,927,032 km (0.111 R)
• M6: 3,854,389 km (0.119 R)
• M7: 5,409,309 km (0.082 R)
• M8: 5,970,900 km (0.115 R)
• M9: 6,780,224 km (0.099 R)
• M10: 7,777,145 km (0.059 R)
• M11: 9,720,720 km (0.087 R)
• M12: 10,201,228 km (0.09 R)
• M13: 11,025,064 km (0.103 R)
• M14: 11,700,349 km (0.096 R)
• M15: 12,846,418 km (0.12 R)
• M16: 14,637,254 km (0.083 R)
• M17: 15,361,607 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.5

Radius: 11

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.58 AU - 2.54 AU

Year: 2078 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,072,561 km

• M1: 136,882 km (0.089 R)
• M2: 509,381 km (0.109 R)
• M3: 1,136,794 km (0.093 R)
• M4: 1,805,497 km (0.093 R)
• M5: 2,398,503 km (0.081 R)
• M6: 3,503,433 km (0.113 R)
• M7: 3,975,414 km (0.087 R)
• M8: 5,134,049 km (0.057 R)
• M9: 5,559,057 km (0.088 R)
• M10: 6,031,637 km (0.111 R)
• M11: 6,378,255 km (0.068 R)
• M12: 7,612,587 km (0.099 R)
• M13: 8,166,548 km (0.106 R)
• M14: 9,619,442 km (0.094 R)
• M15: 10,407,225 km (0.096 R)
• M16: 10,763,118 km (0.076 R)
• M17: 11,879,417 km (0.079 R)
• M18: 12,545,427 km (0.109 R)
• M19: 15,323,759 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.9

Radius: 12.2

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.1 AU - 4.32 AU

Year: 6072 Days

Day: 14.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,072,561 km

• M1: 152,739 km (0.069 R)
• M2: 549,323 km (0.114 R)
• M3: 941,868 km (0.097 R)
• M4: 1,573,022 km (0.093 R)
• M5: 2,127,880 km (0.06 R)
• M6: 2,795,685 km (0.117 R)
• M7: 3,709,878 km (0.081 R)
• M8: 4,236,911 km (0.119 R)
• M9: 4,702,908 km (0.096 R)
• M10: 5,515,374 km (0.06 R)
• M11: 7,539,433 km (0.037 R)
• M12: 8,258,999 km (0.105 R)
• M13: 13,439,873 km (0.09 R)
• M14: 14,545,401 km (0.113 R)
• M15: 15,315,531 km (0.073 R)
• M16: 18,558,663 km (0.088 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 13.2

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 4.37 AU - 5.95 AU

Year: 8239 Days

Day: 5.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,072,561 km

• M1: 164,109 km (0.115 R)
• M2: 665,112 km (0.065 R)
• M3: 1,548,338 km (0.039 R)
• M4: 2,218,985 km (0.108 R)
• M5: 3,017,838 km (0.068 R)
• M6: 4,449,639 km (0.094 R)
• M7: 4,960,217 km (0.034 R)
• M8: 6,131,867 km (0.065 R)
• M9: 6,663,089 km (0.072 R)
• M10: 9,706,658 km (0.075 R)
• M11: 13,912,303 km (0.056 R)
• M12: 14,424,825 km (0.071 R)
• M13: 16,986,240 km (0.09 R)
• M14: 18,171,653 km (0.1 R)
• M15: 20,928,443 km (0.11 R)
• M16: 21,451,287 km (0.09 R)
• M17: 24,361,116 km (0.077 R)
• M18: 24,773,557 km (0.074 R)
• M19: 26,124,725 km (0.095 R)
• M20: 28,698,257 km (0.092 R)
• M21: 30,378,241 km (0.035 R)
• M22: 31,242,319 km (0.069 R)
• M23: 33,423,605 km (0.049 R)
• M24: 34,551,573 km (0.058 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 19,447 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit