🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201

Radius: 12

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.78 AU - 0.8 AU

Year: 461 Days

Day: 10.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,685,507 km

• M1: 149,299 km (0.082 R)
• M2: 538,104 km (0.093 R)
• M3: 1,149,510 km (0.054 R)
• M4: 1,542,952 km (0.082 R)
• M5: 1,992,045 km (0.113 R)
• M6: 2,486,616 km (0.114 R)
• M7: 3,130,934 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.6

Radius: 13.4

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.81 AU - 2.53 AU

Year: 2097 Days

Day: 8.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,685,507 km

• M1: 167,101 km (0.113 R)
• M2: 763,847 km (0.089 R)
• M3: 1,447,808 km (0.05 R)
• M4: 2,732,106 km (0.102 R)
• M5: 3,153,972 km (0.105 R)
• M6: 3,694,170 km (0.065 R)
• M7: 5,111,310 km (0.116 R)
• M8: 6,219,083 km (0.113 R)
• M9: 6,910,823 km (0.119 R)
• M10: 7,456,706 km (0.078 R)
• M11: 8,108,504 km (0.082 R)
• M12: 8,743,547 km (0.082 R)
• M13: 9,994,035 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 10

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.46 AU - 2.9 AU

Year: 2878 Days

Day: 11.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,685,507 km

• M1: 124,316 km (0.101 R)
• M2: 513,869 km (0.076 R)
• M3: 986,000 km (0.076 R)
• M4: 1,332,169 km (0.116 R)
• M5: 1,772,136 km (0.038 R)
• M6: 2,676,007 km (0.083 R)
• M7: 3,438,657 km (0.069 R)
• M8: 4,232,722 km (0.094 R)
• M9: 4,881,528 km (0.055 R)
• M10: 5,193,140 km (0.066 R)
• M11: 6,237,184 km (0.052 R)
• M12: 7,991,518 km (0.034 R)
• M13: 8,528,575 km (0.083 R)
• M14: 9,197,277 km (0.052 R)
• M15: 10,362,944 km (0.095 R)
• M16: 11,880,016 km (0.028 R)
• M17: 12,358,280 km (0.065 R)
• M18: 13,307,179 km (0.112 R)
• M19: 14,401,189 km (0.063 R)
• M20: 15,760,884 km (0.114 R)
• M21: 16,605,812 km (0.096 R)
• M22: 18,850,379 km (0.098 R)
• M23: 19,382,050 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.4

Radius: 13.1

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.74 AU - 4.42 AU

Year: 5406 Days

Day: 8.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,685,507 km

• M1: 163,062 km (0.095 R)
• M2: 621,878 km (0.069 R)
• M3: 1,126,173 km (0.117 R)
• M4: 1,604,288 km (0.085 R)
• M5: 2,379,653 km (0.095 R)
• M6: 4,166,749 km (0.062 R)
• M7: 4,944,658 km (0.116 R)
• M8: 6,003,811 km (0.103 R)
• M9: 6,756,289 km (0.103 R)
• M10: 7,906,846 km (0.089 R)
• M11: 8,529,173 km (0.051 R)
• M12: 9,268,186 km (0.097 R)
• M13: 10,687,122 km (0.095 R)
• M14: 11,254,996 km (0.072 R)
• M15: 12,554,702 km (0.104 R)
• M16: 14,119,945 km (0.102 R)
• M17: 17,765,794 km (0.078 R)
• M18: 18,699,135 km (0.098 R)
• M19: 21,323,232 km (0.034 R)
• M20: 22,072,567 km (0.111 R)
• M21: 23,151,168 km (0.101 R)
• M22: 25,496,863 km (0.112 R)
• M23: 28,264,573 km (0.1 R)
• M24: 29,077,787 km (0.043 R)
• M25: 29,628,457 km (0.056 R)
• M26: 32,487,272 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.3

Radius: 10.9

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.77 AU - 6.21 AU

Year: 7312 Days

Day: 8.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,685,507 km

• M1: 135,536 km (0.076 R)
• M2: 516,262 km (0.1 R)
• M3: 1,041,351 km (0.082 R)
• M4: 1,848,282 km (0.109 R)
• M5: 2,478,837 km (0.098 R)
• M6: 3,688,485 km (0.083 R)
• M7: 4,356,290 km (0.049 R)
• M8: 4,806,131 km (0.116 R)
• M9: 6,345,044 km (0.109 R)
• M10: 6,887,336 km (0.107 R)
• M11: 7,982,393 km (0.093 R)
• M12: 9,790,283 km (0.119 R)
• M13: 10,465,867 km (0.087 R)
• M14: 11,172,119 km (0.07 R)
• M15: 14,875,264 km (0.094 R)
• M16: 16,361,070 km (0.054 R)
• M17: 18,444,819 km (0.119 R)
• M18: 19,928,680 km (0.086 R)
• M19: 20,466,485 km (0.026 R)
• M20: 21,812,566 km (0.101 R)
• M21: 22,714,492 km (0.049 R)
• M22: 26,388,316 km (0.091 R)
• M23: 28,462,341 km (0.085 R)
• M24: 29,737,962 km (0.084 R)
• M25: 31,774,139 km (0.059 R)
• M26: 33,901,570 km (0.069 R)
• M27: 36,008,955 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.2

Radius: 9.5

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.97 AU - 6.39 AU

Year: 7734 Days

Day: 13.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 40,685,507 km

• M1: 118,182 km (0.11 R)
• M2: 422,464 km (0.098 R)
• M3: 727,494 km (0.089 R)
• M4: 1,474,736 km (0.093 R)
• M5: 3,168,782 km (0.046 R)
• M6: 3,488,922 km (0.042 R)
• M7: 4,062,031 km (0.087 R)
• M8: 5,721,221 km (0.028 R)
• M9: 6,339,359 km (0.111 R)
• M10: 7,955,016 km (0.059 R)
• M11: 8,334,247 km (0.045 R)
• M12: 12,089,303 km (0.096 R)
• M13: 13,281,748 km (0.092 R)
• M14: 13,696,283 km (0.053 R)
• M15: 14,364,836 km (0.064 R)
• M16: 15,636,269 km (0.107 R)
• M17: 16,232,117 km (0.062 R)
• M18: 16,569,759 km (0.116 R)
• M19: 18,474,290 km (0.027 R)
• M20: 20,286,070 km (0.03 R)
• M21: 20,677,866 km (0.105 R)
• M22: 20,995,014 km (0.084 R)
• M23: 22,130,462 km (0.074 R)
• M24: 25,237,909 km (0.117 R)
• M25: 28,526,818 km (0.073 R)
• M26: 28,920,111 km (0.101 R)
• M27: 29,416,626 km (0.053 R)
• M28: 32,837,929 km (0.101 R)
• M29: 42,087,566 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.6

Radius: 4.4

Gravity: 15.37 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.14 AU - 7.64 AU

Year: 11864 Days

Day: 20.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 153.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,685,507 km

• M1: 54,753 km (0.099 R)
• M2: 243,994 km (0.074 R)
• M3: 1,462,469 km (0.114 R)
• M4: 2,502,174 km (0.029 R)
• M5: 2,814,235 km (0.096 R)
• M6: 3,983,791 km (0.053 R)
• M7: 4,548,224 km (0.104 R)
• M8: 9,007,737 km (0.067 R)
• M9: 10,360,101 km (0.056 R)
• M10: 12,495,162 km (0.059 R)
• M11: 21,329,216 km (0.07 R)
• M12: 23,709,318 km (0.118 R)
• M13: 26,995,085 km (0.052 R)
• M14: 27,180,886 km (0.094 R)
• M15: 32,003,921 km (0.112 R)
• M16: 39,598,257 km (0.027 R)
• M17: 40,320,964 km (0.105 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 18,100 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit