🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738

Radius: 8

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.53 AU - 0.87 AU

Year: 378 Days

Day: 12.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,359,462 km

• M1: 99,632 km (0.102 R)
• M2: 402,568 km (0.096 R)
• M3: 704,456 km (0.057 R)
• M4: 979,567 km (0.095 R)
• M5: 1,262,008 km (0.046 R)
• M6: 1,592,469 km (0.05 R)
• M7: 2,154,060 km (0.094 R)
• M8: 2,523,866 km (0.075 R)
• M9: 2,831,140 km (0.082 R)
• M10: 3,185,537 km (0.101 R)
• M11: 3,593,790 km (0.061 R)
• M12: 4,049,465 km (0.084 R)
• M13: 4,416,279 km (0.094 R)
• M14: 5,015,418 km (0.083 R)
• M15: 5,406,617 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.9

Radius: 14.4

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.66 AU - 0.76 AU

Year: 386 Days

Day: 7.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,359,462 km

• M1: 179,069 km (0.072 R)
• M2: 968,347 km (0.035 R)
• M3: 1,765,554 km (0.092 R)
• M4: 2,554,683 km (0.064 R)
• M5: 3,062,119 km (0.115 R)
• M6: 3,671,281 km (0.102 R)
• M7: 4,296,750 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.8

Radius: 14.8

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.95 AU - 0.99 AU

Year: 617 Days

Day: 5.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,359,462 km

• M1: 184,005 km (0.119 R)
• M2: 708,196 km (0.082 R)
• M3: 1,843,943 km (0.108 R)
• M4: 2,446,374 km (0.049 R)
• M5: 2,993,304 km (0.052 R)
• M6: 4,018,049 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.8

Radius: 13.3

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.9 AU - 1.06 AU

Year: 626 Days

Day: 6.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,359,462 km

• M1: 165,455 km (0.09 R)
• M2: 724,652 km (0.108 R)
• M3: 1,420,133 km (0.075 R)
• M4: 1,893,311 km (0.095 R)
• M5: 2,962,337 km (0.101 R)
• M6: 3,584,066 km (0.052 R)
• M7: 4,246,036 km (0.025 R)
• M8: 5,160,678 km (0.103 R)
• M9: 6,382,593 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.1

Radius: 10.7

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.21 AU - 1.41 AU

Year: 968 Days

Day: 5.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,359,462 km

• M1: 133,142 km (0.06 R)
• M2: 495,917 km (0.083 R)
• M3: 887,714 km (0.068 R)
• M4: 1,533,079 km (0.066 R)
• M5: 2,104,094 km (0.117 R)
• M6: 2,661,496 km (0.076 R)
• M7: 4,591,757 km (0.062 R)
• M8: 5,451,795 km (0.109 R)
• M9: 6,039,266 km (0.069 R)
• M10: 6,416,103 km (0.119 R)
• M11: 7,023,022 km (0.113 R)
• M12: 9,075,504 km (0.038 R)
• M13: 10,023,207 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.4

Radius: 9.6

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.53 AU - 1.79 AU

Year: 1381 Days

Day: 10.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,359,462 km

• M1: 119,379 km (0.049 R)
• M2: 527,183 km (0.069 R)
• M3: 972,087 km (0.088 R)
• M4: 1,728,005 km (0.105 R)
• M5: 2,028,846 km (0.069 R)
• M6: 2,684,983 km (0.116 R)
• M7: 4,491,377 km (0.113 R)
• M8: 4,883,772 km (0.109 R)
• M9: 5,760,416 km (0.076 R)
• M10: 6,129,623 km (0.096 R)
• M11: 6,490,154 km (0.028 R)
• M12: 6,967,222 km (0.111 R)
• M13: 7,575,786 km (0.075 R)
• M14: 8,019,643 km (0.047 R)
• M15: 8,451,532 km (0.103 R)
• M16: 9,299,303 km (0.044 R)
• M17: 10,070,181 km (0.034 R)
• M18: 12,183,400 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348

Radius: 13.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.55 AU - 2.65 AU

Year: 2707 Days

Day: 8.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,359,462 km

• M1: 165,455 km (0.049 R)
• M2: 623,674 km (0.099 R)
• M3: 1,233,285 km (0.077 R)
• M4: 1,917,097 km (0.093 R)
• M5: 2,729,413 km (0.038 R)
• M6: 3,369,094 km (0.11 R)
• M7: 4,298,096 km (0.108 R)
• M8: 4,886,764 km (0.052 R)
• M9: 5,691,900 km (0.116 R)
• M10: 6,301,810 km (0.048 R)
• M11: 7,118,465 km (0.087 R)
• M12: 8,771,522 km (0.117 R)
• M13: 9,222,110 km (0.102 R)
• M14: 12,140,765 km (0.083 R)
• M15: 13,195,729 km (0.096 R)
• M16: 14,266,700 km (0.118 R)
• M17: 15,118,810 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.1

Radius: 13.4

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.57 AU - 2.73 AU

Year: 2785 Days

Day: 6.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,359,462 km

• M1: 167,250 km (0.032 R)
• M2: 590,762 km (0.096 R)
• M3: 1,021,454 km (0.1 R)
• M4: 1,579,305 km (0.077 R)
• M5: 1,997,730 km (0.11 R)
• M6: 2,452,657 km (0.09 R)
• M7: 2,933,165 km (0.097 R)
• M8: 4,105,714 km (0.084 R)
• M9: 5,126,121 km (0.09 R)
• M10: 7,358,570 km (0.101 R)
• M11: 7,809,607 km (0.113 R)
• M12: 9,050,970 km (0.081 R)
• M13: 10,349,929 km (0.12 R)
• M14: 10,845,546 km (0.066 R)
• M15: 11,393,972 km (0.092 R)
• M16: 12,506,980 km (0.109 R)
• M17: 13,028,927 km (0.114 R)
• M18: 13,775,570 km (0.067 R)
• M19: 14,375,757 km (0.08 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.7

Radius: 14.2

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.65 AU - 3.89 AU

Year: 4726 Days

Day: 12.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,359,462 km

• M1: 176,675 km (0.094 R)
• M2: 705,952 km (0.116 R)
• M3: 1,479,523 km (0.085 R)
• M4: 2,294,383 km (0.091 R)
• M5: 3,518,542 km (0.037 R)
• M6: 5,565,190 km (0.101 R)
• M7: 7,644,302 km (0.117 R)
• M8: 8,505,237 km (0.098 R)
• M9: 9,100,786 km (0.066 R)
• M10: 10,689,965 km (0.1 R)
• M11: 11,149,679 km (0.061 R)
• M12: 14,082,396 km (0.089 R)
• M13: 17,495,920 km (0.037 R)
• M14: 18,006,497 km (0.081 R)
• M15: 19,666,734 km (0.109 R)
• M16: 21,644,867 km (0.078 R)
• M17: 22,607,081 km (0.099 R)
• M18: 23,520,525 km (0.087 R)
• M19: 25,583,779 km (0.11 R)
• M20: 27,166,076 km (0.068 R)
• M21: 28,548,360 km (0.03 R)
• M22: 29,078,685 km (0.097 R)
• M23: 31,172,756 km (0.085 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 472 - 18,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit