🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.58 AU - 0.64 AU

Year: 303 Days

Day: 18.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.4

Radius: 9.6

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1 AU - 1.06 AU

Year: 665 Days

Day: 7.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,320,000 km

• M1: 135,984 km (0.088 R)
• M2: 453,282 km (0.086 R)
• M3: 827,725 km (0.087 R)
• M4: 1,493,436 km (0.09 R)
• M5: 2,129,376 km (0.064 R)
• M6: 2,639,505 km (0.044 R)
• M7: 3,389,888 km (0.108 R)
• M8: 3,830,154 km (0.101 R)
• M9: 5,036,960 km (0.097 R)
• M10: 6,651,720 km (0.106 R)
• M11: 8,182,106 km (0.091 R)
• M12: 8,483,845 km (0.098 R)
• M13: 8,792,914 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.2

Radius: 11.1

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.23 AU - 2.27 AU

Year: 2146 Days

Day: 10 Hours

Environment

Temp: -184 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,320,000 km

• M1: 138,976 km (0.086 R)
• M2: 656,286 km (0.045 R)
• M3: 1,050,027 km (0.045 R)
• M4: 1,415,495 km (0.108 R)
• M5: 1,972,298 km (0.072 R)
• M6: 3,181,348 km (0.104 R)
• M7: 3,640,763 km (0.087 R)
• M8: 4,034,505 km (0.095 R)
• M9: 4,544,634 km (0.071 R)
• M10: 5,193,739 km (0.083 R)
• M11: 5,992,442 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.7

Radius: 13.3

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.9 AU - 2.9 AU

Year: 3140 Days

Day: 13.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,320,000 km

• M1: 165,455 km (0.099 R)
• M2: 669,750 km (0.07 R)
• M3: 1,258,268 km (0.112 R)
• M4: 2,198,191 km (0.088 R)
• M5: 2,741,381 km (0.078 R)
• M6: 4,101,525 km (0.066 R)
• M7: 5,772,832 km (0.093 R)
• M8: 6,358,657 km (0.096 R)
• M9: 7,182,194 km (0.108 R)
• M10: 7,952,473 km (0.11 R)
• M11: 9,109,014 km (0.107 R)
• M12: 10,156,199 km (0.076 R)
• M13: 12,867,661 km (0.063 R)
• M14: 13,870,116 km (0.118 R)
• M15: 16,228,227 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.1

Radius: 8.3

Gravity: 13.95 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.33 AU - 3.69 AU

Year: 3320 Days

Day: 12.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,320,000 km

• M1: 103,223 km (0.082 R)
• M2: 580,141 km (0.043 R)
• M3: 942,915 km (0.105 R)
• M4: 1,230,442 km (0.117 R)
• M5: 1,588,580 km (0.08 R)
• M6: 1,934,899 km (0.084 R)
• M7: 3,268,414 km (0.117 R)
• M8: 3,727,381 km (0.111 R)
• M9: 4,206,243 km (0.055 R)
• M10: 5,583,591 km (0.11 R)
• M11: 6,122,742 km (0.077 R)
• M12: 7,173,667 km (0.087 R)
• M13: 7,571,896 km (0.068 R)
• M14: 8,055,097 km (0.049 R)
• M15: 8,706,297 km (0.058 R)
• M16: 10,072,724 km (0.11 R)
• M17: 10,785,558 km (0.105 R)
• M18: 12,264,632 km (0.108 R)
• M19: 12,642,815 km (0.063 R)
• M20: 13,077,397 km (0.055 R)
• M21: 13,571,818 km (0.099 R)
• M22: 14,915,955 km (0.071 R)
• M23: 16,460,553 km (0.096 R)
• M24: 20,254,654 km (0.082 R)
• M25: 22,635,205 km (0.037 R)
• M26: 24,002,530 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.7

Radius: 6.2

Gravity: 17.81 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.75 AU - 7.53 AU

Year: 12131 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,320,000 km

• M1: 78,389 km (0.105 R)
• M2: 588,518 km (0.046 R)
• M3: 783,594 km (0.113 R)
• M4: 1,001,109 km (0.099 R)
• M5: 2,273,738 km (0.045 R)
• M6: 2,659,401 km (0.085 R)
• M7: 2,879,310 km (0.117 R)
• M8: 3,856,334 km (0.101 R)
• M9: 4,435,278 km (0.068 R)
• M10: 5,272,577 km (0.069 R)
• M11: 6,022,212 km (0.084 R)
• M12: 6,364,342 km (0.11 R)
• M13: 6,759,729 km (0.095 R)
• M14: 8,319,586 km (0.098 R)
• M15: 8,696,274 km (0.063 R)
• M16: 9,999,720 km (0.09 R)
• M17: 10,863,648 km (0.107 R)
• M18: 11,143,545 km (0.074 R)
• M19: 14,413,755 km (0.044 R)
• M20: 16,522,486 km (0.041 R)
• M21: 17,420,672 km (0.042 R)
• M22: 18,668,318 km (0.057 R)
• M23: 27,017,525 km (0.067 R)
• M24: 29,544,981 km (0.099 R)
• M25: 31,427,670 km (0.043 R)
• M26: 32,687,733 km (0.113 R)
• M27: 33,624,964 km (0.072 R)
• M28: 34,700,572 km (0.113 R)
• M29: 51,624,879 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683

Radius: 4.5

Gravity: 33.73 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.75 AU - 8.21 AU

Year: 13007 Days

Day: 17.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 78,320,000 km

• M1: 72,405 km (0.12 R)
• M2: 372,050 km (0.064 R)
• M3: 638,484 km (0.101 R)
• M4: 863,928 km (0.044 R)
• M5: 1,334,263 km (0.073 R)
• M6: 2,049,192 km (0.104 R)
• M7: 2,218,237 km (0.113 R)
• M8: 3,014,247 km (0.118 R)
• M9: 3,814,746 km (0.113 R)
• M10: 4,219,258 km (0.107 R)
• M11: 4,525,186 km (0.092 R)
• M12: 5,045,487 km (0.117 R)
• M13: 5,750,542 km (0.077 R)
• M14: 6,803,562 km (0.045 R)
• M15: 8,210,829 km (0.117 R)
• M16: 8,638,978 km (0.118 R)
• M17: 9,032,121 km (0.079 R)
• M18: 12,063,572 km (0.079 R)
• M19: 15,069,442 km (0.078 R)
• M20: 17,509,683 km (0.109 R)
• M21: 21,510,528 km (0.084 R)
• M22: 24,588,804 km (0.065 R)
• M23: 25,377,035 km (0.084 R)
• M24: 33,123,811 km (0.116 R)
• M25: 34,449,547 km (0.041 R)
• M26: 34,817,259 km (0.085 R)
• M27: 35,685,226 km (0.075 R)
• M28: 37,206,486 km (0.111 R)
• M29: 39,035,470 km (0.078 R)
• M30: 40,786,513 km (0.103 R)
• M31: 47,101,338 km (0.074 R)
• M32: 53,053,688 km (0.064 R)
• M33: 56,378,950 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 715.3

Radius: 3.6

Gravity: 55.19 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 10 AU - 10.22 AU

Year: 20439 Days

Day: 22 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 78,320,000 km

• M1: 44,879 km (0.076 R)
• M2: 268,827 km (0.051 R)
• M3: 590,164 km (0.097 R)
• M4: 1,009,636 km (0.071 R)
• M5: 1,358,049 km (0.08 R)
• M6: 1,934,151 km (0.089 R)
• M7: 2,095,417 km (0.08 R)
• M8: 2,781,772 km (0.059 R)
• M9: 3,040,577 km (0.074 R)
• M10: 3,458,703 km (0.062 R)
• M11: 4,074,298 km (0.1 R)
• M12: 4,408,051 km (0.109 R)
• M13: 4,868,812 km (0.107 R)
• M14: 5,885,479 km (0.068 R)
• M15: 6,667,278 km (0.115 R)
• M16: 6,803,861 km (0.098 R)
• M17: 7,225,278 km (0.072 R)
• M18: 7,914,924 km (0.085 R)
• M19: 8,171,484 km (0.06 R)
• M20: 8,974,675 km (0.104 R)
• M21: 9,947,062 km (0.073 R)
• M22: 13,067,823 km (0.113 R)
• M23: 14,693,952 km (0.072 R)
• M24: 16,202,796 km (0.111 R)
• M25: 18,972,002 km (0.088 R)
• M26: 19,154,960 km (0.117 R)
• M27: 33,332,051 km (0.078 R)
• M28: 33,465,044 km (0.057 R)
• M29: 33,865,966 km (0.08 R)
• M30: 35,363,889 km (0.103 R)
• M31: 35,502,267 km (0.093 R)
• M32: 36,905,496 km (0.095 R)
• M33: 38,054,258 km (0.116 R)
• M34: 43,837,861 km (0.082 R)
• M35: 50,006,080 km (0.116 R)
• M36: 51,589,275 km (0.087 R)
• M37: 51,945,467 km (0.112 R)
• M38: 55,973,689 km (0.075 R)
• M39: 63,005,986 km (0.063 R)
• M40: 76,687,758 km (0.1 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 14,191 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit