🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.5

Radius: 12.7

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.96 AU - 1.28 AU

Year: 818 Days

Day: 5.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,085,582 km

• M1: 157,975 km (0.113 R)
• M2: 769,681 km (0.051 R)
• M3: 1,174,792 km (0.113 R)
• M4: 1,966,165 km (0.038 R)
• M5: 3,169,081 km (0.086 R)
• M6: 4,006,979 km (0.088 R)
• M7: 5,814,121 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.2

Radius: 12.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.15 AU - 1.41 AU

Year: 1000 Days

Day: 7.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,085,582 km

• M1: 156,779 km (0.043 R)
• M2: 572,212 km (0.107 R)
• M3: 1,017,415 km (0.113 R)
• M4: 1,726,359 km (0.11 R)
• M5: 2,813,637 km (0.082 R)
• M6: 3,247,620 km (0.056 R)
• M7: 3,643,456 km (0.05 R)
• M8: 4,344,771 km (0.095 R)
• M9: 4,894,543 km (0.058 R)
• M10: 5,674,995 km (0.058 R)
• M11: 6,414,158 km (0.112 R)
• M12: 7,020,628 km (0.112 R)
• M13: 7,416,015 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.2

Radius: 9.5

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.08 AU - 2.34 AU

Year: 2268 Days

Day: 11.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,085,582 km

• M1: 118,482 km (0.117 R)
• M2: 449,392 km (0.086 R)
• M3: 878,887 km (0.101 R)
• M4: 1,265,897 km (0.063 R)
• M5: 1,733,391 km (0.099 R)
• M6: 2,380,252 km (0.097 R)
• M7: 2,678,101 km (0.073 R)
• M8: 3,384,502 km (0.115 R)
• M9: 5,281,403 km (0.069 R)
• M10: 6,256,482 km (0.097 R)
• M11: 7,084,955 km (0.082 R)
• M12: 9,686,612 km (0.104 R)
• M13: 11,698,404 km (0.113 R)
• M14: 12,567,568 km (0.116 R)
• M15: 13,747,745 km (0.116 R)
• M16: 14,111,118 km (0.101 R)
• M17: 14,809,890 km (0.114 R)
• M18: 16,631,992 km (0.073 R)
• M19: 17,096,942 km (0.081 R)
• M20: 17,517,462 km (0.075 R)
• M21: 17,837,302 km (0.028 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.8

Radius: 9

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.35 AU - 2.81 AU

Year: 2860 Days

Day: 10.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,085,582 km

• M1: 111,899 km (0.105 R)
• M2: 446,250 km (0.112 R)
• M3: 834,607 km (0.114 R)
• M4: 1,240,316 km (0.1 R)
• M5: 1,964,370 km (0.114 R)
• M6: 2,385,488 km (0.092 R)
• M7: 2,962,786 km (0.106 R)
• M8: 3,337,828 km (0.052 R)
• M9: 4,394,886 km (0.09 R)
• M10: 5,024,095 km (0.06 R)
• M11: 6,322,904 km (0.061 R)
• M12: 9,139,084 km (0.072 R)
• M13: 10,820,713 km (0.093 R)
• M14: 13,785,294 km (0.115 R)
• M15: 14,494,837 km (0.066 R)
• M16: 16,453,522 km (0.097 R)
• M17: 17,523,595 km (0.068 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.6

Radius: 4

Gravity: 54.66 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 5.66 AU - 8.38 AU

Year: 12839 Days

Day: 18.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 72,085,582 km

• M1: 49,816 km (0.119 R)
• M2: 214,523 km (0.112 R)
• M3: 477,367 km (0.088 R)
• M4: 974,630 km (0.088 R)
• M5: 1,562,251 km (0.088 R)
• M6: 1,808,339 km (0.06 R)
• M7: 1,986,510 km (0.066 R)
• M8: 2,255,487 km (0.107 R)
• M9: 3,579,578 km (0.106 R)
• M10: 4,096,887 km (0.04 R)
• M11: 4,662,218 km (0.118 R)
• M12: 4,861,781 km (0.031 R)
• M13: 5,531,531 km (0.065 R)
• M14: 6,023,857 km (0.115 R)
• M15: 7,814,245 km (0.04 R)
• M16: 8,048,515 km (0.091 R)
• M17: 8,729,634 km (0.08 R)
• M18: 9,554,068 km (0.051 R)
• M19: 10,095,014 km (0.107 R)
• M20: 10,429,216 km (0.106 R)
• M21: 10,886,237 km (0.102 R)
• M22: 11,536,240 km (0.1 R)
• M23: 12,527,326 km (0.111 R)
• M24: 14,049,634 km (0.093 R)
• M25: 15,616,971 km (0.1 R)
• M26: 17,139,578 km (0.051 R)
• M27: 18,592,173 km (0.091 R)
• M28: 18,842,001 km (0.067 R)
• M29: 21,739,712 km (0.056 R)
• M30: 34,263,298 km (0.09 R)
• M31: 38,681,222 km (0.048 R)
• M32: 42,592,758 km (0.091 R)
• M33: 45,693,772 km (0.09 R)
• M34: 48,154,956 km (0.025 R)
• M35: 50,379,776 km (0.114 R)
• M36: 57,993,410 km (0.059 R)
• M37: 60,692,305 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 400.5

Radius: 6.5

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.96 AU - 9.44 AU

Year: 16208 Days

Day: 21.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,085,582 km

• M1: 80,783 km (0.101 R)
• M2: 408,253 km (0.112 R)
• M3: 844,181 km (0.07 R)
• M4: 1,062,743 km (0.083 R)
• M5: 2,194,451 km (0.086 R)
• M6: 2,614,672 km (0.102 R)
• M7: 3,331,545 km (0.052 R)
• M8: 4,626,464 km (0.035 R)
• M9: 5,705,214 km (0.092 R)
• M10: 7,025,266 km (0.096 R)
• M11: 12,249,223 km (0.118 R)
• M12: 13,242,104 km (0.063 R)
• M13: 15,387,039 km (0.118 R)
• M14: 18,699,584 km (0.073 R)
• M15: 19,431,267 km (0.099 R)
• M16: 21,299,894 km (0.052 R)
• M17: 21,652,048 km (0.059 R)
• M18: 22,731,995 km (0.1 R)
• M19: 27,308,194 km (0.087 R)
• M20: 28,355,229 km (0.05 R)
• M21: 31,315,771 km (0.119 R)
• M22: 33,281,786 km (0.109 R)
• M23: 34,114,747 km (0.062 R)
• M24: 49,706,436 km (0.088 R)
• M25: 50,015,655 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 458.1

Radius: 4.7

Gravity: 20.74 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.65 AU - 11.79 AU

Year: 22552 Days

Day: 17.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,085,582 km

• M1: 58,942 km (0.075 R)
• M2: 251,923 km (0.039 R)
• M3: 1,197,381 km (0.086 R)
• M4: 2,081,954 km (0.085 R)
• M5: 2,742,129 km (0.087 R)
• M6: 3,589,751 km (0.082 R)
• M7: 4,950,343 km (0.099 R)
• M8: 5,432,946 km (0.052 R)
• M9: 5,987,206 km (0.065 R)
• M10: 8,794,410 km (0.075 R)
• M11: 9,115,896 km (0.104 R)
• M12: 9,556,761 km (0.119 R)
• M13: 11,026,261 km (0.026 R)
• M14: 12,980,607 km (0.066 R)
• M15: 14,039,311 km (0.066 R)
• M16: 22,806,195 km (0.074 R)
• M17: 30,081,738 km (0.093 R)
• M18: 36,798,234 km (0.074 R)
• M19: 41,840,879 km (0.115 R)
• M20: 43,825,444 km (0.085 R)
• M21: 44,605,148 km (0.067 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 19,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit