🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44

Radius: 11.5

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.06 AU - 1.24 AU

Year: 796 Days

Day: 14.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,311,619 km

• M1: 143,016 km (0.086 R)
• M2: 625,319 km (0.056 R)
• M3: 1,083,837 km (0.1 R)
• M4: 1,442,423 km (0.107 R)
• M5: 1,843,495 km (0.116 R)
• M6: 2,721,185 km (0.104 R)
• M7: 3,264,824 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.4

Radius: 10.8

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.31 AU - 1.85 AU

Year: 1282 Days

Day: 8 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,311,619 km

• M1: 305,180 km (0.117 R)
• M2: 712,983 km (0.085 R)
• M3: 1,666,819 km (0.099 R)
• M4: 2,962,038 km (0.049 R)
• M5: 3,758,796 km (0.116 R)
• M6: 4,188,292 km (0.117 R)
• M7: 4,735,371 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.5

Radius: 10

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.98 AU - 2.18 AU

Year: 1937 Days

Day: 11.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,311,619 km

• M1: 124,914 km (0.097 R)
• M2: 477,816 km (0.106 R)
• M3: 926,759 km (0.048 R)
• M4: 1,394,701 km (0.095 R)
• M5: 3,257,344 km (0.049 R)
• M6: 4,236,612 km (0.114 R)
• M7: 4,857,592 km (0.119 R)
• M8: 5,285,442 km (0.078 R)
• M9: 5,943,075 km (0.11 R)
• M10: 6,880,904 km (0.096 R)
• M11: 7,814,095 km (0.094 R)
• M12: 8,220,403 km (0.066 R)
• M13: 9,755,277 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.4

Radius: 8.9

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.65 AU - 2.63 AU

Year: 2021 Days

Day: 8.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,311,619 km

• M1: 110,852 km (0.05 R)
• M2: 445,353 km (0.111 R)
• M3: 761,603 km (0.084 R)
• M4: 1,409,212 km (0.115 R)
• M5: 2,138,352 km (0.094 R)
• M6: 3,743,537 km (0.091 R)
• M7: 4,269,224 km (0.063 R)
• M8: 4,569,317 km (0.081 R)
• M9: 5,468,101 km (0.054 R)
• M10: 8,254,362 km (0.089 R)
• M11: 9,362,134 km (0.034 R)
• M12: 12,541,837 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.5

Radius: 12.5

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.14 AU - 2.42 AU

Year: 2223 Days

Day: 11.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,311,619 km

• M1: 155,432 km (0.093 R)
• M2: 731,384 km (0.091 R)
• M3: 1,150,707 km (0.034 R)
• M4: 1,782,758 km (0.104 R)
• M5: 2,180,239 km (0.108 R)
• M6: 3,074,984 km (0.109 R)
• M7: 3,576,137 km (0.1 R)
• M8: 6,106,735 km (0.093 R)
• M9: 7,200,594 km (0.112 R)
• M10: 7,847,755 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.6

Radius: 12.4

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.41 AU - 2.87 AU

Year: 2770 Days

Day: 12.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,311,619 km

• M1: 154,235 km (0.111 R)
• M2: 680,670 km (0.113 R)
• M3: 1,270,684 km (0.049 R)
• M4: 1,931,159 km (0.105 R)
• M5: 2,668,676 km (0.064 R)
• M6: 5,509,540 km (0.102 R)
• M7: 7,585,360 km (0.081 R)
• M8: 9,452,790 km (0.106 R)
• M9: 10,816,225 km (0.094 R)
• M10: 13,171,345 km (0.104 R)
• M11: 14,970,708 km (0.06 R)
• M12: 15,535,888 km (0.079 R)
• M13: 18,813,877 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.2

Radius: 14.4

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.74 AU - 6.08 AU

Year: 8125 Days

Day: 12.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,311,619 km

• M1: 179,069 km (0.094 R)
• M2: 642,074 km (0.117 R)
• M3: 1,210,247 km (0.082 R)
• M4: 1,748,051 km (0.048 R)
• M5: 2,204,175 km (0.113 R)
• M6: 3,060,024 km (0.068 R)
• M7: 4,105,863 km (0.089 R)
• M8: 5,189,401 km (0.076 R)
• M9: 5,827,585 km (0.051 R)
• M10: 8,135,132 km (0.107 R)
• M11: 8,844,525 km (0.116 R)
• M12: 10,301,609 km (0.106 R)
• M13: 10,821,461 km (0.117 R)
• M14: 13,688,355 km (0.044 R)
• M15: 14,801,812 km (0.063 R)
• M16: 17,028,726 km (0.096 R)
• M17: 18,379,445 km (0.114 R)
• M18: 22,569,831 km (0.059 R)
• M19: 24,350,345 km (0.069 R)
• M20: 25,667,105 km (0.086 R)
• M21: 26,143,125 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 842.6

Radius: 4.6

Gravity: 39.82 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 7.85 AU - 12.55 AU

Year: 21034 Days

Day: 21 Hours

Environment

Temp: -221 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 84,311,619 km

• M1: 58,044 km (0.113 R)
• M2: 347,217 km (0.025 R)
• M3: 508,782 km (0.096 R)
• M4: 954,285 km (0.097 R)
• M5: 1,697,188 km (0.052 R)
• M6: 3,112,683 km (0.117 R)
• M7: 3,988,130 km (0.043 R)
• M8: 4,187,992 km (0.114 R)
• M9: 5,210,494 km (0.091 R)
• M10: 6,035,676 km (0.108 R)
• M11: 7,837,732 km (0.084 R)
• M12: 12,459,259 km (0.082 R)
• M13: 14,933,009 km (0.109 R)
• M14: 17,098,737 km (0.106 R)
• M15: 17,715,679 km (0.07 R)
• M16: 19,655,515 km (0.094 R)
• M17: 20,430,282 km (0.106 R)
• M18: 21,732,382 km (0.048 R)
• M19: 30,983,813 km (0.087 R)
• M20: 33,239,300 km (0.069 R)
• M21: 33,648,451 km (0.09 R)
• M22: 35,318,412 km (0.067 R)
• M23: 37,042,826 km (0.086 R)
• M24: 37,777,651 km (0.071 R)
• M25: 40,814,189 km (0.072 R)
• M26: 43,519,816 km (0.112 R)
• M27: 44,999,488 km (0.074 R)
• M28: 47,712,296 km (0.036 R)
• M29: 48,932,716 km (0.046 R)
• M30: 63,968,498 km (0.067 R)
• M31: 64,389,766 km (0.088 R)
• M32: 65,025,407 km (0.092 R)
• M33: 71,160,266 km (0.068 R)
• M34: 73,211,104 km (0.096 R)
• M35: 81,809,241 km (0.072 R)
• M36: 83,807,121 km (0.039 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: 334 - 11,588 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit