🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.9

Radius: 10.7

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.59 AU - 0.73 AU

Year: 370 Days

Day: 9.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,847,170 km

• M1: 133,142 km (0.073 R)
• M2: 495,468 km (0.057 R)
• M3: 928,105 km (0.11 R)
• M4: 1,514,529 km (0.053 R)
• M5: 1,885,681 km (0.078 R)
• M6: 2,379,953 km (0.119 R)
• M7: 2,796,134 km (0.11 R)
• M8: 3,419,209 km (0.088 R)
• M9: 4,428,097 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.9

Radius: 8.7

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.6 AU - 0.9 AU

Year: 448 Days

Day: 11.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,847,170 km

• M1: 108,458 km (0.089 R)
• M2: 448,943 km (0.08 R)
• M3: 763,996 km (0.095 R)
• M4: 1,428,510 km (0.103 R)
• M5: 1,833,023 km (0.03 R)
• M6: 2,127,731 km (0.097 R)
• M7: 2,658,205 km (0.088 R)
• M8: 3,090,842 km (0.052 R)
• M9: 3,465,435 km (0.101 R)
• M10: 4,306,474 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.6

Radius: 9.2

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.89 AU - 1.37 AU

Year: 829 Days

Day: 14.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,847,170 km

• M1: 114,442 km (0.068 R)
• M2: 583,731 km (0.112 R)
• M3: 1,333,366 km (0.082 R)
• M4: 2,018,674 km (0.048 R)
• M5: 2,626,490 km (0.118 R)
• M6: 3,281,579 km (0.12 R)
• M7: 3,946,691 km (0.102 R)
• M8: 5,156,339 km (0.078 R)
• M9: 5,908,518 km (0.083 R)
• M10: 6,376,460 km (0.042 R)
• M11: 6,664,286 km (0.08 R)
• M12: 8,713,178 km (0.097 R)
• M13: 9,604,931 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.2

Radius: 9.2

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.68 AU - 1.72 AU

Year: 1530 Days

Day: 5.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,847,170 km

• M1: 114,442 km (0.045 R)
• M2: 520,451 km (0.075 R)
• M3: 1,051,972 km (0.073 R)
• M4: 1,471,893 km (0.12 R)
• M5: 1,906,625 km (0.115 R)
• M6: 2,450,114 km (0.118 R)
• M7: 2,895,168 km (0.093 R)
• M8: 3,211,417 km (0.108 R)
• M9: 3,550,556 km (0.075 R)
• M10: 3,982,445 km (0.086 R)
• M11: 5,406,168 km (0.09 R)
• M12: 5,978,978 km (0.11 R)
• M13: 8,507,781 km (0.08 R)
• M14: 9,009,532 km (0.083 R)
• M15: 9,687,958 km (0.091 R)
• M16: 11,216,100 km (0.066 R)
• M17: 12,037,692 km (0.118 R)
• M18: 12,670,341 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.8

Radius: 13.5

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.6 AU - 3.58 AU

Year: 3749 Days

Day: 8.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,847,170 km

• M1: 172,038 km (0.101 R)
• M2: 1,292,974 km (0.096 R)
• M3: 1,775,876 km (0.085 R)
• M4: 2,715,800 km (0.114 R)
• M5: 3,232,361 km (0.102 R)
• M6: 4,585,175 km (0.044 R)
• M7: 12,739,156 km (0.115 R)
• M8: 13,530,828 km (0.119 R)
• M9: 14,407,771 km (0.089 R)
• M10: 15,821,620 km (0.079 R)
• M11: 16,274,752 km (0.101 R)
• M12: 17,029,623 km (0.116 R)
• M13: 18,174,795 km (0.09 R)
• M14: 21,023,438 km (0.098 R)
• M15: 24,835,042 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.5

Radius: 10.1

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.29 AU - 5.61 AU

Year: 8782 Days

Day: 10.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,847,170 km

• M1: 125,662 km (0.101 R)
• M2: 639,531 km (0.09 R)
• M3: 1,222,364 km (0.093 R)
• M4: 1,652,159 km (0.051 R)
• M5: 2,416,604 km (0.096 R)
• M6: 3,627,300 km (0.056 R)
• M7: 4,941,666 km (0.106 R)
• M8: 7,119,213 km (0.083 R)
• M9: 9,643,976 km (0.071 R)
• M10: 10,524,210 km (0.101 R)
• M11: 12,444,149 km (0.106 R)
• M12: 12,767,281 km (0.064 R)
• M13: 13,207,098 km (0.094 R)
• M14: 13,770,783 km (0.089 R)
• M15: 14,291,833 km (0.062 R)
• M16: 17,766,692 km (0.108 R)
• M17: 20,101,765 km (0.096 R)
• M18: 23,035,828 km (0.043 R)
• M19: 25,458,715 km (0.071 R)
• M20: 27,954,606 km (0.104 R)
• M21: 29,261,792 km (0.098 R)
• M22: 31,696,797 km (0.096 R)
• M23: 32,503,728 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.2

Radius: 7.4

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 7.6 AU - 8.46 AU

Year: 15707 Days

Day: 20.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 70,847,170 km

• M1: 92,152 km (0.096 R)
• M2: 412,890 km (0.082 R)
• M3: 825,182 km (0.068 R)
• M4: 1,151,754 km (0.081 R)
• M5: 1,506,600 km (0.088 R)
• M6: 1,772,136 km (0.083 R)
• M7: 2,959,495 km (0.102 R)
• M8: 3,578,830 km (0.066 R)
• M9: 4,944,958 km (0.098 R)
• M10: 5,503,107 km (0.112 R)
• M11: 8,296,848 km (0.063 R)
• M12: 9,036,759 km (0.072 R)
• M13: 9,870,168 km (0.112 R)
• M14: 10,753,843 km (0.03 R)
• M15: 14,102,442 km (0.119 R)
• M16: 15,154,414 km (0.106 R)
• M17: 19,328,344 km (0.092 R)
• M18: 26,294,818 km (0.119 R)
• M19: 34,184,310 km (0.11 R)
• M20: 35,835,422 km (0.049 R)
• M21: 37,169,685 km (0.054 R)
• M22: 38,035,707 km (0.094 R)
• M23: 40,714,706 km (0.119 R)
• M24: 42,166,853 km (0.075 R)
• M25: 46,160,517 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 674.3

Radius: 3.7

Gravity: 49.25 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.69 AU - 8.97 AU

Year: 18111 Days

Day: 23.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,847,170 km

• M1: 46,076 km (0.114 R)
• M2: 289,771 km (0.09 R)
• M3: 472,879 km (0.039 R)
• M4: 885,171 km (0.096 R)
• M5: 2,054,876 km (0.025 R)
• M6: 2,344,348 km (0.105 R)
• M7: 2,978,793 km (0.111 R)
• M8: 3,661,408 km (0.1 R)
• M9: 3,779,740 km (0.073 R)
• M10: 4,925,659 km (0.052 R)
• M11: 6,243,168 km (0.061 R)
• M12: 6,671,317 km (0.087 R)
• M13: 8,843,179 km (0.107 R)
• M14: 9,886,774 km (0.059 R)
• M15: 10,766,708 km (0.088 R)
• M16: 12,019,291 km (0.116 R)
• M17: 12,149,741 km (0.071 R)
• M18: 13,020,400 km (0.087 R)
• M19: 14,735,390 km (0.06 R)
• M20: 17,001,648 km (0.051 R)
• M21: 19,400,151 km (0.104 R)
• M22: 19,669,876 km (0.082 R)
• M23: 19,941,995 km (0.114 R)
• M24: 23,002,767 km (0.042 R)
• M25: 25,172,983 km (0.063 R)
• M26: 25,817,301 km (0.104 R)
• M27: 26,034,368 km (0.097 R)
• M28: 27,363,096 km (0.117 R)
• M29: 28,158,658 km (0.106 R)
• M30: 34,689,353 km (0.115 R)
• M31: 38,232,877 km (0.108 R)
• M32: 42,915,740 km (0.074 R)
• M33: 51,316,707 km (0.113 R)
• M34: 52,873,722 km (0.094 R)
• M35: 53,048,751 km (0.111 R)
• M36: 61,133,319 km (0.111 R)
• M37: 64,265,450 km (0.113 R)
• M38: 64,864,440 km (0.085 R)
• M39: 69,580,363 km (0.104 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: 427 - 18,190 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit