🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.41 AU - 0.67 AU

Year: 256 Days

Day: 25.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.7

Radius: 9.1

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.96 AU - 1.06 AU

Year: 655 Days

Day: 12 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 92,421,344 km

• M1: 113,246 km (0.12 R)
• M2: 403,914 km (0.069 R)
• M3: 897,288 km (0.102 R)
• M4: 1,233,584 km (0.104 R)
• M5: 1,654,552 km (0.109 R)
• M6: 1,966,614 km (0.119 R)
• M7: 2,985,226 km (0.111 R)
• M8: 3,485,930 km (0.04 R)
• M9: 3,822,226 km (0.096 R)
• M10: 4,180,213 km (0.074 R)
• M11: 4,683,012 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.2

Radius: 11.2

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.98 AU - 1.22 AU

Year: 745 Days

Day: 9.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 92,421,344 km

• M1: 139,276 km (0.116 R)
• M2: 642,523 km (0.096 R)
• M3: 1,131,708 km (0.116 R)
• M4: 1,495,380 km (0.081 R)
• M5: 1,957,339 km (0.065 R)
• M6: 2,306,799 km (0.072 R)
• M7: 2,733,901 km (0.115 R)
• M8: 3,187,033 km (0.032 R)
• M9: 3,588,404 km (0.107 R)
• M10: 4,213,574 km (0.118 R)
• M11: 4,612,402 km (0.065 R)
• M12: 5,983,765 km (0.085 R)
• M13: 8,802,488 km (0.106 R)

Asteroid Belt

Center: 1.54 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.4

Radius: 13.5

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.95 AU - 2.01 AU

Year: 1799 Days

Day: 11.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 92,421,344 km

• M1: 169,046 km (0.118 R)
• M2: 740,061 km (0.032 R)
• M3: 1,981,723 km (0.115 R)
• M4: 3,530,959 km (0.11 R)
• M5: 5,520,461 km (0.087 R)
• M6: 6,359,106 km (0.106 R)
• M7: 6,999,834 km (0.049 R)
• M8: 7,843,566 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.4

Radius: 8.4

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.34 AU - 4.16 AU

Year: 4689 Days

Day: 11.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 92,421,344 km

• M1: 116,537 km (0.092 R)
• M2: 387,758 km (0.038 R)
• M3: 723,455 km (0.047 R)
• M4: 995,424 km (0.036 R)
• M5: 1,595,611 km (0.114 R)
• M6: 1,874,461 km (0.091 R)
• M7: 2,141,643 km (0.12 R)
• M8: 2,450,712 km (0.111 R)
• M9: 3,478,450 km (0.092 R)
• M10: 4,276,255 km (0.077 R)
• M11: 4,795,210 km (0.039 R)
• M12: 5,899,093 km (0.115 R)
• M13: 6,734,597 km (0.103 R)
• M14: 7,096,773 km (0.046 R)
• M15: 7,824,268 km (0.099 R)
• M16: 8,562,533 km (0.079 R)
• M17: 8,831,660 km (0.085 R)
• M18: 11,330,094 km (0.09 R)
• M19: 12,225,736 km (0.044 R)
• M20: 13,372,404 km (0.069 R)
• M21: 16,284,775 km (0.069 R)
• M22: 17,058,944 km (0.094 R)
• M23: 18,108,074 km (0.109 R)
• M24: 18,680,585 km (0.115 R)
• M25: 19,330,738 km (0.103 R)
• M26: 21,231,678 km (0.097 R)
• M27: 22,736,782 km (0.108 R)
• M28: 23,253,942 km (0.1 R)
• M29: 25,559,544 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 799

Radius: 5.9

Gravity: 22.95 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 8.49 AU - 11.83 AU

Year: 20910 Days

Day: 18 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 92,421,344 km

• M1: 78,988 km (0.03 R)
• M2: 368,609 km (0.094 R)
• M3: 742,753 km (0.117 R)
• M4: 1,863,690 km (0.062 R)
• M5: 3,172,522 km (0.079 R)
• M6: 4,114,839 km (0.085 R)
• M7: 5,754,731 km (0.052 R)
• M8: 6,627,335 km (0.038 R)
• M9: 7,992,865 km (0.098 R)
• M10: 8,631,797 km (0.107 R)
• M11: 10,689,815 km (0.119 R)
• M12: 11,398,759 km (0.053 R)
• M13: 14,318,611 km (0.1 R)
• M14: 15,259,282 km (0.097 R)
• M15: 26,685,268 km (0.106 R)
• M16: 32,009,756 km (0.04 R)
• M17: 36,546,012 km (0.079 R)
• M18: 39,493,987 km (0.091 R)
• M19: 44,862,606 km (0.108 R)
• M20: 50,519,351 km (0.076 R)
• M21: 56,249,398 km (0.103 R)
• M22: 57,990,717 km (0.101 R)
• M23: 72,323,539 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 940.2

Radius: 4.3

Gravity: 50.85 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 8.59 AU - 12.97 AU

Year: 22853 Days

Day: 15.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 92,421,344 km

• M1: 54,454 km (0.098 R)
• M2: 233,821 km (0.077 R)
• M3: 531,671 km (0.074 R)
• M4: 1,037,012 km (0.053 R)
• M5: 1,298,659 km (0.069 R)
• M6: 1,752,988 km (0.106 R)
• M7: 1,891,815 km (0.041 R)
• M8: 2,497,836 km (0.118 R)
• M9: 3,283,224 km (0.095 R)
• M10: 3,433,570 km (0.106 R)
• M11: 4,963,508 km (0.088 R)
• M12: 5,617,400 km (0.096 R)
• M13: 5,789,438 km (0.095 R)
• M14: 6,009,496 km (0.109 R)
• M15: 6,326,793 km (0.062 R)
• M16: 9,704,713 km (0.064 R)
• M17: 12,378,326 km (0.088 R)
• M18: 15,005,863 km (0.088 R)
• M19: 17,159,325 km (0.12 R)
• M20: 17,613,504 km (0.103 R)
• M21: 18,927,571 km (0.088 R)
• M22: 23,040,017 km (0.106 R)
• M23: 23,815,981 km (0.088 R)
• M24: 25,070,359 km (0.072 R)
• M25: 25,303,133 km (0.12 R)
• M26: 27,216,939 km (0.115 R)
• M27: 29,353,945 km (0.111 R)
• M28: 38,710,244 km (0.108 R)
• M29: 41,244,283 km (0.038 R)
• M30: 42,551,918 km (0.046 R)
• M31: 47,168,657 km (0.037 R)
• M32: 52,868,187 km (0.091 R)
• M33: 58,599,880 km (0.106 R)
• M34: 60,459,531 km (0.09 R)
• M35: 63,645,517 km (0.068 R)
• M36: 66,051,948 km (0.077 R)
• M37: 66,941,756 km (0.036 R)
• M38: 68,973,145 km (0.109 R)
• M39: 70,119,215 km (0.048 R)
• M40: 71,979,165 km (0.037 R)
• M41: 74,590,097 km (0.09 R)
• M42: 74,830,650 km (0.068 R)
• M43: 87,255,800 km (0.117 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 18,193 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit