🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.5

Radius: 8.5

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.57 AU - 0.81 AU

Year: 370 Days

Day: 8.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,000,797 km

• M1: 105,766 km (0.112 R)
• M2: 385,364 km (0.113 R)
• M3: 682,166 km (0.083 R)
• M4: 948,899 km (0.105 R)
• M5: 1,276,668 km (0.032 R)
• M6: 1,583,942 km (0.076 R)
• M7: 1,991,896 km (0.117 R)
• M8: 2,359,308 km (0.106 R)
• M9: 2,780,875 km (0.034 R)
• M10: 3,089,346 km (0.047 R)
• M11: 3,528,864 km (0.102 R)
• M12: 3,879,522 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.9

Radius: 11.1

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.54 AU - 0.88 AU

Year: 386 Days

Day: 9.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,000,797 km

• M1: 138,079 km (0.074 R)
• M2: 515,215 km (0.091 R)
• M3: 1,061,397 km (0.107 R)
• M4: 1,428,660 km (0.069 R)
• M5: 1,790,836 km (0.113 R)
• M6: 2,482,726 km (0.096 R)
• M7: 3,004,075 km (0.062 R)
• M8: 3,688,485 km (0.115 R)
• M9: 4,370,053 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.5

Radius: 8

Gravity: 12.8 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.34 AU - 1.44 AU

Year: 1058 Days

Day: 9 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,000,797 km

• M1: 99,483 km (0.071 R)
• M2: 854,653 km (0.101 R)
• M3: 1,510,041 km (0.082 R)
• M4: 1,846,935 km (0.099 R)
• M5: 2,934,512 km (0.041 R)
• M6: 3,212,764 km (0.097 R)
• M7: 4,104,218 km (0.077 R)
• M8: 4,453,229 km (0.095 R)
• M9: 5,052,967 km (0.111 R)
• M10: 5,769,242 km (0.087 R)
• M11: 6,051,982 km (0.115 R)
• M12: 8,135,132 km (0.098 R)
• M13: 8,886,263 km (0.067 R)
• M14: 9,743,609 km (0.12 R)
• M15: 10,302,955 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.6

Radius: 13.6

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.07 AU - 3.33 AU

Year: 3696 Days

Day: 5.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,000,797 km

• M1: 170,093 km (0.112 R)
• M2: 1,547,740 km (0.1 R)
• M3: 2,047,247 km (0.119 R)
• M4: 2,655,063 km (0.065 R)
• M5: 3,254,651 km (0.088 R)
• M6: 3,964,194 km (0.072 R)
• M7: 5,257,767 km (0.057 R)
• M8: 5,934,248 km (0.1 R)
• M9: 7,461,942 km (0.072 R)
• M10: 8,805,181 km (0.102 R)
• M11: 13,000,653 km (0.078 R)
• M12: 17,853,159 km (0.08 R)
• M13: 20,555,645 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.7

Radius: 14.9

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.86 AU - 4.4 AU

Year: 4466 Days

Day: 11.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,000,797 km

• M1: 186,997 km (0.091 R)
• M2: 920,775 km (0.082 R)
• M3: 1,411,755 km (0.092 R)
• M4: 2,465,373 km (0.072 R)
• M5: 5,171,598 km (0.085 R)
• M6: 6,326,793 km (0.101 R)
• M7: 9,423,918 km (0.07 R)
• M8: 11,143,845 km (0.084 R)
• M9: 12,565,174 km (0.069 R)
• M10: 13,260,654 km (0.086 R)

Asteroid Belt

Center: 4.01 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.3

Radius: 9.3

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.59 AU - 5.19 AU

Year: 5939 Days

Day: 11.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,000,797 km

• M1: 115,938 km (0.073 R)
• M2: 409,001 km (0.05 R)
• M3: 989,141 km (0.099 R)
• M4: 1,936,694 km (0.098 R)
• M5: 2,401,644 km (0.062 R)
• M6: 3,341,867 km (0.108 R)
• M7: 3,801,132 km (0.115 R)
• M8: 5,021,103 km (0.031 R)
• M9: 5,958,633 km (0.093 R)
• M10: 6,635,563 km (0.097 R)
• M11: 7,136,118 km (0.084 R)
• M12: 7,494,704 km (0.066 R)
• M13: 8,606,814 km (0.098 R)
• M14: 9,865,082 km (0.116 R)
• M15: 10,187,914 km (0.07 R)
• M16: 11,068,746 km (0.102 R)
• M17: 12,045,022 km (0.076 R)
• M18: 12,933,484 km (0.055 R)
• M19: 14,168,414 km (0.047 R)
• M20: 16,304,971 km (0.104 R)
• M21: 16,643,062 km (0.109 R)
• M22: 17,744,551 km (0.08 R)
• M23: 19,017,779 km (0.075 R)
• M24: 20,221,144 km (0.047 R)
• M25: 21,073,403 km (0.081 R)
• M26: 22,709,256 km (0.11 R)
• M27: 24,281,679 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.3

Radius: 11.2

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.91 AU - 6.83 AU

Year: 9183 Days

Day: 11 Hours

Environment

Temp: -228 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,000,797 km

• M1: 139,276 km (0.041 R)
• M2: 574,157 km (0.117 R)
• M3: 977,472 km (0.096 R)
• M4: 1,336,956 km (0.073 R)
• M5: 1,745,658 km (0.105 R)
• M6: 2,110,676 km (0.118 R)
• M7: 2,746,168 km (0.117 R)
• M8: 3,287,413 km (0.087 R)
• M9: 4,094,045 km (0.119 R)
• M10: 5,841,198 km (0.103 R)
• M11: 9,855,957 km (0.11 R)
• M12: 10,268,398 km (0.091 R)
• M13: 11,079,069 km (0.041 R)
• M14: 12,243,090 km (0.09 R)
• M15: 15,661,551 km (0.059 R)
• M16: 19,312,188 km (0.065 R)
• M17: 20,178,060 km (0.081 R)
• M18: 23,413,413 km (0.061 R)
• M19: 24,648,194 km (0.109 R)
• M20: 27,697,597 km (0.108 R)
• M21: 28,520,684 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 517.9

Radius: 3.1

Gravity: 53.89 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 7.01 AU - 7.23 AU

Year: 12267 Days

Day: 18.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,000,797 km

• M1: 38,596 km (0.055 R)
• M2: 392,395 km (0.118 R)
• M3: 508,184 km (0.105 R)
• M4: 721,211 km (0.064 R)
• M5: 897,288 km (0.108 R)
• M6: 1,136,196 km (0.055 R)
• M7: 1,335,311 km (0.111 R)
• M8: 1,499,419 km (0.087 R)
• M9: 2,163,933 km (0.064 R)
• M10: 2,275,533 km (0.062 R)
• M11: 2,612,577 km (0.1 R)
• M12: 3,796,196 km (0.08 R)
• M13: 6,029,692 km (0.11 R)
• M14: 6,251,246 km (0.073 R)
• M15: 6,401,742 km (0.086 R)
• M16: 6,554,780 km (0.117 R)
• M17: 7,911,783 km (0.118 R)
• M18: 8,540,243 km (0.083 R)
• M19: 10,730,954 km (0.097 R)
• M20: 11,725,930 km (0.082 R)
• M21: 12,012,859 km (0.119 R)
• M22: 18,546,097 km (0.077 R)
• M23: 18,779,021 km (0.109 R)
• M24: 22,954,447 km (0.116 R)
• M25: 27,406,031 km (0.108 R)
• M26: 28,731,617 km (0.111 R)
• M27: 31,730,905 km (0.086 R)
• M28: 33,077,735 km (0.116 R)
• M29: 33,420,314 km (0.052 R)
• M30: 35,764,662 km (0.07 R)
• M31: 38,593,707 km (0.091 R)
• M32: 40,386,638 km (0.1 R)
• M33: 41,040,231 km (0.108 R)
• M34: 46,097,387 km (0.105 R)
• M35: 46,381,922 km (0.108 R)
• M36: 47,968,258 km (0.104 R)
• M37: 49,144,397 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936.6

Radius: 5.8

Gravity: 27.84 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 7.45 AU - 11.47 AU

Year: 18787 Days

Day: 22.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,000,797 km

• M1: 72,106 km (0.08 R)
• M2: 258,206 km (0.115 R)
• M3: 528,529 km (0.106 R)
• M4: 922,121 km (0.112 R)
• M5: 1,233,434 km (0.074 R)
• M6: 2,107,834 km (0.061 R)
• M7: 2,799,275 km (0.105 R)
• M8: 3,692,823 km (0.079 R)
• M9: 5,022,001 km (0.084 R)
• M10: 8,966,298 km (0.06 R)
• M11: 9,593,263 km (0.056 R)
• M12: 13,610,265 km (0.059 R)
• M13: 14,514,135 km (0.078 R)
• M14: 14,746,311 km (0.092 R)
• M15: 16,026,121 km (0.045 R)
• M16: 17,465,402 km (0.119 R)
• M17: 18,988,757 km (0.074 R)
• M18: 20,020,384 km (0.117 R)
• M19: 21,386,661 km (0.097 R)
• M20: 26,198,178 km (0.102 R)
• M21: 27,122,992 km (0.083 R)
• M22: 30,404,570 km (0.069 R)
• M23: 31,040,062 km (0.099 R)
• M24: 31,944,531 km (0.089 R)
• M25: 33,401,016 km (0.033 R)
• M26: 34,077,497 km (0.12 R)
• M27: 36,161,695 km (0.03 R)
• M28: 38,921,776 km (0.04 R)
• M29: 39,370,120 km (0.076 R)
• M30: 41,819,187 km (0.112 R)
• M31: 42,289,373 km (0.076 R)
• M32: 43,400,287 km (0.085 R)
• M33: 43,721,324 km (0.085 R)
• M34: 49,074,086 km (0.064 R)
• M35: 49,597,229 km (0.086 R)
• M36: 55,599,694 km (0.031 R)
• M37: 62,068,456 km (0.07 R)
• M38: 66,011,257 km (0.045 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 14,873 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit