🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275

Radius: 10.8

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.57 AU - 0.89 AU

Year: 409 Days

Day: 10.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 151.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,987,376 km

• M1: 135,984 km (0.116 R)
• M2: 572,661 km (0.097 R)
• M3: 981,811 km (0.097 R)
• M4: 1,626,129 km (0.117 R)
• M5: 1,968,259 km (0.064 R)
• M6: 2,416,454 km (0.073 R)
• M7: 2,764,868 km (0.12 R)
• M8: 3,371,936 km (0.107 R)
• M9: 3,959,706 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.8

Radius: 14.5

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.79 AU - 1.11 AU

Year: 607 Days

Day: 13.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,987,376 km

• M1: 181,013 km (0.119 R)
• M2: 679,174 km (0.082 R)
• M3: 1,281,455 km (0.102 R)
• M4: 2,212,553 km (0.052 R)
• M5: 2,808,102 km (0.07 R)
• M6: 3,375,227 km (0.105 R)
• M7: 4,184,701 km (0.11 R)
• M8: 4,804,186 km (0.107 R)
• M9: 6,359,106 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772

Radius: 10.7

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.78 AU - 1.16 AU

Year: 627 Days

Day: 8.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,987,376 km

• M1: 133,142 km (0.12 R)
• M2: 512,373 km (0.103 R)
• M3: 852,259 km (0.105 R)
• M4: 1,506,451 km (0.068 R)
• M5: 2,040,216 km (0.081 R)
• M6: 2,470,609 km (0.108 R)
• M7: 2,914,017 km (0.087 R)
• M8: 3,436,562 km (0.116 R)
• M9: 3,804,723 km (0.115 R)
• M10: 5,514,327 km (0.083 R)
• M11: 7,085,853 km (0.072 R)
• M12: 7,617,673 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.2

Radius: 10.5

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1 AU - 1.06 AU

Year: 686 Days

Day: 14.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,987,376 km

• M1: 130,749 km (0.042 R)
• M2: 543,190 km (0.067 R)
• M3: 1,145,172 km (0.116 R)
• M4: 2,249,802 km (0.084 R)
• M5: 2,832,486 km (0.065 R)
• M6: 4,008,325 km (0.119 R)
• M7: 4,867,167 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.5

Radius: 14

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.72 AU - 2.14 AU

Year: 1759 Days

Day: 5.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,987,376 km

• M1: 174,132 km (0.094 R)
• M2: 674,238 km (0.12 R)
• M3: 1,284,747 km (0.12 R)
• M4: 1,805,796 km (0.105 R)
• M5: 3,076,331 km (0.032 R)
• M6: 4,382,170 km (0.055 R)
• M7: 5,522,405 km (0.05 R)
• M8: 6,030,739 km (0.065 R)
• M9: 7,222,585 km (0.07 R)
• M10: 8,003,935 km (0.109 R)
• M11: 8,718,115 km (0.067 R)
• M12: 9,670,156 km (0.066 R)
• M13: 10,205,567 km (0.092 R)
• M14: 10,831,634 km (0.098 R)
• M15: 11,969,924 km (0.085 R)
• M16: 12,745,739 km (0.091 R)
• M17: 13,554,913 km (0.062 R)
• M18: 14,014,329 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.4

Radius: 8

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.41 AU - 2.67 AU

Year: 2656 Days

Day: 8.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,987,376 km

• M1: 99,483 km (0.102 R)
• M2: 402,418 km (0.119 R)
• M3: 1,125,724 km (0.09 R)
• M4: 1,505,104 km (0.071 R)
• M5: 1,778,719 km (0.094 R)
• M6: 2,073,726 km (0.081 R)
• M7: 2,322,806 km (0.096 R)
• M8: 2,676,904 km (0.115 R)
• M9: 4,326,670 km (0.082 R)
• M10: 5,377,295 km (0.102 R)
• M11: 5,900,738 km (0.051 R)
• M12: 6,251,246 km (0.081 R)
• M13: 7,216,751 km (0.115 R)
• M14: 7,676,316 km (0.067 R)
• M15: 7,973,417 km (0.101 R)
• M16: 8,247,331 km (0.074 R)
• M17: 11,420,451 km (0.102 R)
• M18: 12,005,229 km (0.114 R)
• M19: 14,232,293 km (0.046 R)
• M20: 15,513,598 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.3

Radius: 11.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.17 AU - 5.63 AU

Year: 7115 Days

Day: 10.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,987,376 km

• M1: 138,079 km (0.093 R)
• M2: 1,031,477 km (0.102 R)
• M3: 2,941,693 km (0.089 R)
• M4: 6,020,118 km (0.114 R)
• M5: 10,294,129 km (0.055 R)
• M6: 11,342,511 km (0.081 R)
• M7: 12,833,702 km (0.03 R)
• M8: 17,617,842 km (0.054 R)
• M9: 19,674,663 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.9

Radius: 8.8

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.91 AU - 6.31 AU

Year: 8717 Days

Day: 12 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,987,376 km

• M1: 111,151 km (0.1 R)
• M2: 810,671 km (0.065 R)
• M3: 3,218,748 km (0.088 R)
• M4: 3,766,276 km (0.111 R)
• M5: 5,108,468 km (0.087 R)
• M6: 5,488,746 km (0.047 R)
• M7: 6,669,971 km (0.068 R)
• M8: 7,009,259 km (0.119 R)
• M9: 9,154,642 km (0.079 R)
• M10: 12,366,508 km (0.068 R)
• M11: 15,660,354 km (0.084 R)
• M12: 17,865,576 km (0.084 R)
• M13: 25,528,129 km (0.054 R)
• M14: 26,829,780 km (0.07 R)
• M15: 29,970,288 km (0.075 R)
• M16: 30,688,657 km (0.119 R)
• M17: 31,840,411 km (0.118 R)
• M18: 35,241,369 km (0.093 R)
• M19: 35,697,044 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 156.5

Radius: 5.5

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 7.54 AU - 8.4 AU

Year: 14760 Days

Day: 24.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,987,376 km

• M1: 68,516 km (0.096 R)
• M2: 271,670 km (0.116 R)
• M3: 758,162 km (0.059 R)
• M4: 1,012,478 km (0.097 R)
• M5: 1,276,369 km (0.117 R)
• M6: 1,468,602 km (0.089 R)
• M7: 1,722,171 km (0.084 R)
• M8: 2,036,177 km (0.11 R)
• M9: 2,317,720 km (0.101 R)
• M10: 2,605,995 km (0.097 R)
• M11: 2,918,056 km (0.108 R)
• M12: 6,799,223 km (0.094 R)
• M13: 8,258,850 km (0.094 R)
• M14: 8,845,722 km (0.034 R)
• M15: 13,074,555 km (0.097 R)
• M16: 15,559,076 km (0.076 R)
• M17: 17,178,174 km (0.088 R)
• M18: 18,341,148 km (0.058 R)
• M19: 19,482,879 km (0.081 R)
• M20: 20,520,190 km (0.084 R)
• M21: 21,985,950 km (0.087 R)
• M22: 22,946,817 km (0.112 R)
• M23: 23,355,369 km (0.053 R)
• M24: 28,267,864 km (0.074 R)
• M25: 29,499,204 km (0.04 R)
• M26: 36,196,252 km (0.108 R)
• M27: 36,416,909 km (0.069 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 15,165 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit