🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.6

Radius: 9

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.8 AU - 0.86 AU

Year: 496 Days

Day: 10.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,929,089 km

• M1: 111,899 km (0.116 R)
• M2: 430,393 km (0.116 R)
• M3: 710,590 km (0.074 R)
• M4: 1,857,557 km (0.051 R)
• M5: 2,150,769 km (0.095 R)
• M6: 2,586,996 km (0.054 R)
• M7: 2,909,828 km (0.077 R)
• M8: 3,247,620 km (0.059 R)
• M9: 3,624,607 km (0.065 R)
• M10: 4,696,326 km (0.104 R)
• M11: 6,226,862 km (0.107 R)
• M12: 6,533,837 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.4

Radius: 10.8

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.02 AU - 1.48 AU

Year: 917 Days

Day: 6.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,929,089 km

• M1: 134,638 km (0.118 R)
• M2: 508,334 km (0.101 R)
• M3: 908,209 km (0.053 R)
• M4: 1,403,976 km (0.097 R)
• M5: 2,009,249 km (0.063 R)
• M6: 3,063,016 km (0.063 R)
• M7: 3,556,091 km (0.109 R)
• M8: 4,258,453 km (0.052 R)
• M9: 4,822,287 km (0.088 R)
• M10: 5,231,587 km (0.103 R)
• M11: 5,859,300 km (0.093 R)
• M12: 6,305,251 km (0.107 R)
• M13: 7,449,974 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.9

Radius: 13.1

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.03 AU - 1.61 AU

Year: 995 Days

Day: 8.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,929,089 km

• M1: 162,912 km (0.099 R)
• M2: 659,727 km (0.113 R)
• M3: 1,189,453 km (0.111 R)
• M4: 1,862,344 km (0.094 R)
• M5: 2,298,571 km (0.087 R)
• M6: 3,467,679 km (0.088 R)
• M7: 4,267,728 km (0.058 R)
• M8: 4,891,102 km (0.119 R)
• M9: 6,451,707 km (0.078 R)
• M10: 7,467,178 km (0.073 R)
• M11: 8,167,146 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996

Radius: 13.2

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.4 AU - 2.18 AU

Year: 1571 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,929,089 km

• M1: 164,109 km (0.079 R)
• M2: 667,356 km (0.119 R)
• M3: 1,373,757 km (0.115 R)
• M4: 3,123,155 km (0.057 R)
• M5: 6,004,111 km (0.082 R)
• M6: 6,530,246 km (0.085 R)
• M7: 7,363,058 km (0.072 R)
• M8: 8,205,294 km (0.055 R)
• M9: 9,637,992 km (0.111 R)
• M10: 10,899,701 km (0.083 R)
• M11: 11,916,069 km (0.106 R)
• M12: 12,427,544 km (0.107 R)
• M13: 15,484,277 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.7

Radius: 8.3

Gravity: 11.38 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2 AU - 2.38 AU

Year: 2126 Days

Day: 8.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,929,089 km

• M1: 103,223 km (0.054 R)
• M2: 549,772 km (0.045 R)
• M3: 1,069,774 km (0.066 R)
• M4: 1,372,261 km (0.092 R)
• M5: 1,842,747 km (0.043 R)
• M6: 2,444,579 km (0.115 R)
• M7: 3,057,182 km (0.12 R)
• M8: 3,374,030 km (0.033 R)
• M9: 3,749,671 km (0.073 R)
• M10: 5,230,989 km (0.093 R)
• M11: 5,661,382 km (0.093 R)
• M12: 6,219,232 km (0.079 R)
• M13: 7,038,580 km (0.103 R)
• M14: 7,444,738 km (0.117 R)
• M15: 8,399,920 km (0.047 R)
• M16: 9,503,953 km (0.108 R)
• M17: 10,182,080 km (0.112 R)
• M18: 10,853,774 km (0.076 R)
• M19: 13,883,730 km (0.038 R)
• M20: 14,155,399 km (0.049 R)
• M21: 14,569,636 km (0.076 R)
• M22: 15,910,033 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384

Radius: 8.7

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.8 AU - 4.08 AU

Year: 5130 Days

Day: 6.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,929,089 km

• M1: 108,458 km (0.073 R)
• M2: 755,619 km (0.117 R)
• M3: 1,056,311 km (0.112 R)
• M4: 1,416,991 km (0.12 R)
• M5: 1,710,203 km (0.046 R)
• M6: 2,437,249 km (0.056 R)
• M7: 3,204,386 km (0.103 R)
• M8: 5,610,519 km (0.094 R)
• M9: 6,060,958 km (0.074 R)
• M10: 6,565,851 km (0.051 R)
• M11: 6,938,948 km (0.101 R)
• M12: 7,899,216 km (0.075 R)
• M13: 9,719,224 km (0.104 R)
• M14: 10,369,676 km (0.103 R)
• M15: 11,939,107 km (0.118 R)
• M16: 12,401,813 km (0.106 R)
• M17: 15,003,320 km (0.12 R)
• M18: 15,433,414 km (0.087 R)
• M19: 15,871,736 km (0.097 R)
• M20: 16,601,773 km (0.07 R)
• M21: 17,236,816 km (0.038 R)
• M22: 19,940,050 km (0.106 R)
• M23: 23,197,693 km (0.056 R)
• M24: 24,728,378 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.3

Radius: 12

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.62 AU - 6.44 AU

Year: 8531 Days

Day: 13.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 80,929,089 km

• M1: 150,645 km (0.05 R)
• M2: 637,287 km (0.087 R)
• M3: 1,201,869 km (0.118 R)
• M4: 1,809,835 km (0.05 R)
• M5: 2,193,853 km (0.108 R)
• M6: 3,713,169 km (0.069 R)
• M7: 4,220,455 km (0.097 R)
• M8: 4,879,434 km (0.091 R)
• M9: 5,318,354 km (0.057 R)
• M10: 7,135,818 km (0.031 R)
• M11: 7,775,948 km (0.051 R)
• M12: 8,261,842 km (0.071 R)
• M13: 8,847,517 km (0.084 R)
• M14: 9,885,427 km (0.1 R)
• M15: 10,456,143 km (0.034 R)
• M16: 10,910,173 km (0.09 R)
• M17: 11,955,563 km (0.115 R)
• M18: 13,275,614 km (0.072 R)
• M19: 13,862,337 km (0.108 R)
• M20: 14,300,060 km (0.086 R)
• M21: 15,904,946 km (0.067 R)
• M22: 16,567,216 km (0.112 R)
• M23: 17,626,668 km (0.104 R)
• M24: 18,797,272 km (0.119 R)
• M25: 20,367,600 km (0.055 R)
• M26: 21,437,674 km (0.117 R)
• M27: 23,074,574 km (0.06 R)
• M28: 25,602,180 km (0.1 R)
• M29: 26,095,853 km (0.089 R)
• M30: 27,787,505 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 603.5

Radius: 6.4

Gravity: 14.73 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 9.08 AU - 11.66 AU

Year: 21907 Days

Day: 17.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 80,929,089 km

• M1: 79,736 km (0.114 R)
• M2: 680,670 km (0.099 R)
• M3: 1,260,661 km (0.062 R)
• M4: 2,254,889 km (0.107 R)
• M5: 2,522,818 km (0.085 R)
• M6: 2,836,974 km (0.071 R)
• M7: 3,514,503 km (0.097 R)
• M8: 5,299,804 km (0.075 R)
• M9: 9,300,948 km (0.042 R)
• M10: 10,532,887 km (0.103 R)
• M11: 11,541,775 km (0.1 R)
• M12: 12,821,734 km (0.103 R)
• M13: 15,580,917 km (0.098 R)
• M14: 17,914,943 km (0.118 R)
• M15: 20,856,486 km (0.087 R)
• M16: 22,644,929 km (0.054 R)
• M17: 23,681,493 km (0.099 R)
• M18: 25,960,466 km (0.098 R)
• M19: 27,095,466 km (0.119 R)
• M20: 27,792,143 km (0.053 R)
• M21: 32,875,628 km (0.06 R)
• M22: 34,068,821 km (0.074 R)
• M23: 40,621,656 km (0.078 R)
• M24: 44,192,408 km (0.084 R)
• M25: 44,995,449 km (0.094 R)
• M26: 47,295,516 km (0.082 R)
• M27: 56,902,093 km (0.096 R)
• M28: 62,560,932 km (0.079 R)
• M29: 68,369,518 km (0.088 R)
• M30: 74,075,929 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.2

Radius: 3.9

Gravity: 44.39 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 8.45 AU - 12.41 AU

Year: 22097 Days

Day: 16.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 80,929,089 km

• M1: 61,186 km (0.107 R)
• M2: 247,435 km (0.08 R)
• M3: 577,448 km (0.119 R)
• M4: 1,358,349 km (0.104 R)
• M5: 1,920,837 km (0.077 R)
• M6: 3,171,624 km (0.12 R)
• M7: 4,920,424 km (0.097 R)
• M8: 5,186,109 km (0.049 R)
• M9: 5,787,642 km (0.059 R)
• M10: 6,213,697 km (0.069 R)
• M11: 8,607,562 km (0.059 R)
• M12: 9,564,091 km (0.052 R)
• M13: 11,031,796 km (0.082 R)
• M14: 11,160,600 km (0.041 R)
• M15: 12,226,634 km (0.088 R)
• M16: 14,100,796 km (0.064 R)
• M17: 19,794,790 km (0.119 R)
• M18: 21,151,643 km (0.065 R)
• M19: 28,510,063 km (0.064 R)
• M20: 30,362,982 km (0.109 R)
• M21: 31,254,586 km (0.068 R)
• M22: 34,443,713 km (0.069 R)
• M23: 35,413,107 km (0.111 R)
• M24: 37,843,025 km (0.088 R)
• M25: 42,083,676 km (0.049 R)
• M26: 64,477,879 km (0.059 R)
• M27: 74,783,078 km (0.084 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: 494 - 11,129 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit