🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946

Radius: 13.7

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.99 AU - 0.99 AU

Year: 636 Days

Day: 8.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,466,125 km

• M1: 170,542 km (0.025 R)
• M2: 924,814 km (0.118 R)
• M3: 1,355,806 km (0.069 R)
• M4: 1,970,653 km (0.069 R)
• M5: 2,588,492 km (0.107 R)
• M6: 3,053,741 km (0.103 R)
• M7: 4,583,380 km (0.087 R)
• M8: 6,165,676 km (0.101 R)
• M9: 6,788,303 km (0.079 R)
• M10: 7,226,475 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.5

Radius: 12.2

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.06 AU - 1.18 AU

Year: 765 Days

Day: 13.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,466,125 km

• M1: 151,842 km (0.047 R)
• M2: 749,635 km (0.117 R)
• M3: 1,225,655 km (0.118 R)
• M4: 1,904,381 km (0.114 R)
• M5: 2,483,325 km (0.111 R)
• M6: 3,072,740 km (0.109 R)
• M7: 3,650,786 km (0.109 R)
• M8: 4,267,878 km (0.087 R)
• M9: 4,917,581 km (0.108 R)
• M10: 5,304,441 km (0.102 R)
• M11: 8,376,882 km (0.112 R)
• M12: 9,230,787 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.1

Radius: 13

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.11 AU - 1.71 AU

Year: 1081 Days

Day: 6.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,466,125 km

• M1: 161,715 km (0.112 R)
• M2: 578,794 km (0.074 R)
• M3: 1,050,626 km (0.081 R)
• M4: 1,675,945 km (0.088 R)
• M5: 2,327,593 km (0.074 R)
• M6: 2,905,789 km (0.081 R)
• M7: 3,330,647 km (0.082 R)
• M8: 4,368,707 km (0.086 R)
• M9: 5,167,858 km (0.065 R)
• M10: 6,762,422 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.7

Radius: 14.2

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.15 AU - 1.83 AU

Year: 1174 Days

Day: 6.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 63.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 18,466,125 km

• M1: 176,825 km (0.078 R)
• M2: 731,384 km (0.083 R)
• M3: 1,191,697 km (0.06 R)
• M4: 1,712,596 km (0.118 R)
• M5: 2,195,199 km (0.106 R)
• M6: 2,649,079 km (0.11 R)
• M7: 3,443,294 km (0.041 R)
• M8: 3,999,200 km (0.084 R)
• M9: 4,809,871 km (0.071 R)
• M10: 5,809,185 km (0.093 R)
• M11: 6,646,334 km (0.049 R)
• M12: 8,695,675 km (0.103 R)
• M13: 9,792,078 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.9

Radius: 11.4

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.85 AU - 1.95 AU

Year: 1691 Days

Day: 6 Hours

Environment

Temp: -191 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 18,466,125 km

• M1: 141,968 km (0.114 R)
• M2: 508,633 km (0.062 R)
• M3: 917,035 km (0.118 R)
• M4: 1,287,140 km (0.106 R)
• M5: 2,043,806 km (0.113 R)
• M6: 2,955,306 km (0.103 R)
• M7: 3,362,661 km (0.058 R)
• M8: 4,100,627 km (0.055 R)
• M9: 5,248,940 km (0.095 R)
• M10: 6,678,647 km (0.089 R)
• M11: 7,080,467 km (0.066 R)
• M12: 7,756,949 km (0.085 R)
• M13: 9,337,450 km (0.106 R)
• M14: 9,943,621 km (0.058 R)
• M15: 10,397,650 km (0.107 R)
• M16: 11,998,497 km (0.079 R)
• M17: 13,800,852 km (0.104 R)
• M18: 14,498,876 km (0.101 R)
• M19: 15,824,164 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.9

Radius: 12.4

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.96 AU - 2.65 AU

Year: 2252 Days

Day: 6.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 144.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 18,466,125 km

• M1: 154,983 km (0.118 R)
• M2: 707,299 km (0.106 R)
• M3: 1,358,349 km (0.107 R)
• M4: 1,865,785 km (0.09 R)
• M5: 2,358,859 km (0.097 R)
• M6: 2,843,407 km (0.063 R)
• M7: 3,306,263 km (0.025 R)
• M8: 3,723,940 km (0.108 R)
• M9: 4,115,886 km (0.116 R)
• M10: 5,171,449 km (0.036 R)
• M11: 6,593,676 km (0.119 R)
• M12: 7,750,217 km (0.116 R)
• M13: 8,327,665 km (0.111 R)
• M14: 8,796,654 km (0.045 R)
• M15: 9,461,168 km (0.105 R)
• M16: 9,934,944 km (0.089 R)
• M17: 10,424,428 km (0.07 R)
• M18: 10,930,069 km (0.119 R)
• M19: 11,990,569 km (0.112 R)
• M20: 12,589,409 km (0.067 R)
• M21: 13,754,477 km (0.097 R)
• M22: 14,506,506 km (0.098 R)
• M23: 15,137,360 km (0.114 R)
• M24: 15,635,221 km (0.068 R)
• M25: 16,402,210 km (0.114 R)
• M26: 18,345,785 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.2

Radius: 10.1

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.32 AU - 3.3 AU

Year: 3041 Days

Day: 8.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 18,466,125 km

• M1: 125,662 km (0.058 R)
• M2: 624,571 km (0.119 R)
• M3: 1,218,475 km (0.079 R)
• M4: 1,917,396 km (0.111 R)
• M5: 2,294,532 km (0.097 R)
• M6: 4,076,542 km (0.054 R)
• M7: 4,615,543 km (0.093 R)
• M8: 5,499,966 km (0.118 R)
• M9: 6,158,944 km (0.1 R)
• M10: 6,550,592 km (0.067 R)
• M11: 10,192,701 km (0.044 R)
• M12: 11,104,949 km (0.114 R)
• M13: 11,602,063 km (0.072 R)
• M14: 12,331,652 km (0.083 R)
• M15: 13,552,969 km (0.087 R)
• M16: 14,313,674 km (0.111 R)
• M17: 14,853,124 km (0.08 R)
• M18: 15,661,700 km (0.075 R)
• M19: 17,038,001 km (0.099 R)
• M20: 17,755,622 km (0.115 R)
• M21: 18,150,261 km (0.105 R)
• M22: 19,667,782 km (0.087 R)
• M23: 20,519,143 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.5

Radius: 10.3

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.78 AU - 4.26 AU

Year: 4264 Days

Day: 8.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,466,125 km

• M1: 128,205 km (0.115 R)
• M2: 1,758,972 km (0.115 R)
• M3: 2,851,036 km (0.074 R)
• M4: 3,577,633 km (0.085 R)
• M5: 4,500,802 km (0.116 R)
• M6: 5,264,798 km (0.054 R)
• M7: 7,102,757 km (0.114 R)
• M8: 8,079,332 km (0.114 R)
• M9: 9,659,086 km (0.09 R)
• M10: 10,679,343 km (0.107 R)
• M11: 11,361,809 km (0.109 R)
• M12: 12,265,230 km (0.056 R)
• M13: 12,694,875 km (0.109 R)
• M14: 13,460,816 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.8

Radius: 5.7

Gravity: 26.74 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.38 AU - 6.66 AU

Year: 9537 Days

Day: 24.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 18,466,125 km

• M1: 70,909 km (0.118 R)
• M2: 399,127 km (0.108 R)
• M3: 1,037,162 km (0.084 R)
• M4: 1,669,961 km (0.114 R)
• M5: 1,907,971 km (0.093 R)
• M6: 2,186,522 km (0.109 R)
• M7: 2,718,193 km (0.101 R)
• M8: 3,381,061 km (0.098 R)
• M9: 4,862,230 km (0.093 R)
• M10: 5,282,750 km (0.088 R)
• M11: 5,587,929 km (0.096 R)
• M12: 6,196,493 km (0.089 R)
• M13: 6,651,869 km (0.087 R)
• M14: 7,211,216 km (0.093 R)
• M15: 8,332,153 km (0.091 R)
• M16: 9,173,192 km (0.061 R)
• M17: 9,865,531 km (0.111 R)
• M18: 10,328,536 km (0.064 R)
• M19: 10,968,366 km (0.067 R)
• M20: 11,409,381 km (0.081 R)
• M21: 12,985,245 km (0.087 R)
• M22: 13,984,708 km (0.106 R)
• M23: 15,785,867 km (0.096 R)
• M24: 16,633,787 km (0.079 R)
• M25: 17,511,777 km (0.091 R)
• M26: 21,079,986 km (0.104 R)
• M27: 26,258,166 km (0.089 R)
• M28: 27,446,871 km (0.116 R)
• M29: 28,156,563 km (0.084 R)
• M30: 30,144,569 km (0.048 R)
• M31: 33,585,769 km (0.116 R)
• M32: 34,514,622 km (0.112 R)
• M33: 37,403,507 km (0.056 R)
• M34: 41,633,237 km (0.105 R)
• M35: 42,166,703 km (0.092 R)
• M36: 43,247,099 km (0.095 R)
• M37: 43,931,808 km (0.078 R)
• M38: 46,170,989 km (0.085 R)
• M39: 49,075,731 km (0.102 R)
• M40: 49,670,831 km (0.089 R)
• M41: 50,120,373 km (0.055 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.8

Radius: 3.5

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.46 AU - 6.7 AU

Year: 9680 Days

Day: 24.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 18,466,125 km

• M1: 65,524 km (0.083 R)
• M2: 435,031 km (0.065 R)
• M3: 717,621 km (0.073 R)
• M4: 1,508,246 km (0.067 R)
• M5: 1,688,960 km (0.049 R)
• M6: 2,332,530 km (0.108 R)
• M7: 2,755,294 km (0.057 R)
• M8: 3,042,222 km (0.099 R)
• M9: 4,287,176 km (0.043 R)
• M10: 4,498,258 km (0.115 R)
• M11: 5,534,822 km (0.043 R)
• M12: 6,335,470 km (0.106 R)
• M13: 6,471,454 km (0.088 R)
• M14: 7,122,205 km (0.116 R)
• M15: 9,057,702 km (0.116 R)
• M16: 10,577,317 km (0.048 R)
• M17: 16,805,376 km (0.101 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 14,643 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit