🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.5

Radius: 14.4

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.61 AU - 0.65 AU

Year: 333 Days

Day: 11.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,465,439 km

• M1: 179,069 km (0.084 R)
• M2: 658,679 km (0.084 R)
• M3: 1,267,543 km (0.097 R)
• M4: 1,884,933 km (0.103 R)
• M5: 2,373,819 km (0.098 R)
• M6: 3,614,733 km (0.09 R)
• M7: 4,768,432 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.4

Radius: 10.8

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.02 AU - 1.34 AU

Year: 855 Days

Day: 12.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,465,439 km

• M1: 135,087 km (0.077 R)
• M2: 491,279 km (0.113 R)
• M3: 1,116,449 km (0.1 R)
• M4: 1,617,751 km (0.108 R)
• M5: 2,153,611 km (0.113 R)
• M6: 2,514,142 km (0.028 R)
• M7: 2,878,263 km (0.106 R)
• M8: 3,291,153 km (0.091 R)
• M9: 4,141,318 km (0.063 R)
• M10: 4,584,277 km (0.068 R)
• M11: 5,242,807 km (0.106 R)
• M12: 6,551,190 km (0.076 R)
• M13: 7,223,782 km (0.087 R)
• M14: 8,498,057 km (0.044 R)
• M15: 9,161,673 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.1

Radius: 10.7

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.3 AU - 1.38 AU

Year: 1034 Days

Day: 8.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,465,439 km

• M1: 133,142 km (0.12 R)
• M2: 611,107 km (0.08 R)
• M3: 982,409 km (0.097 R)
• M4: 1,555,967 km (0.07 R)
• M5: 2,461,633 km (0.084 R)
• M6: 3,253,604 km (0.09 R)
• M7: 3,775,850 km (0.082 R)
• M8: 4,128,153 km (0.095 R)
• M9: 4,917,282 km (0.08 R)
• M10: 5,338,699 km (0.112 R)
• M11: 6,170,613 km (0.091 R)
• M12: 6,617,911 km (0.103 R)
• M13: 7,966,984 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.5

Radius: 12.6

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.17 AU - 1.63 AU

Year: 1105 Days

Day: 11.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,465,439 km

• M1: 156,629 km (0.081 R)
• M2: 668,104 km (0.117 R)
• M3: 1,153,998 km (0.106 R)
• M4: 1,731,147 km (0.117 R)
• M5: 2,374,567 km (0.097 R)
• M6: 4,730,584 km (0.082 R)
• M7: 5,938,886 km (0.065 R)
• M8: 7,497,097 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.5

Radius: 8.7

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.26 AU - 1.82 AU

Year: 1274 Days

Day: 10.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,465,439 km

• M1: 108,608 km (0.061 R)
• M2: 494,870 km (0.106 R)
• M3: 871,258 km (0.105 R)
• M4: 1,602,792 km (0.116 R)
• M5: 1,901,389 km (0.061 R)
• M6: 2,279,572 km (0.113 R)
• M7: 3,043,419 km (0.072 R)
• M8: 3,365,354 km (0.062 R)
• M9: 4,222,250 km (0.116 R)
• M10: 4,675,831 km (0.103 R)
• M11: 5,523,453 km (0.099 R)
• M12: 5,861,394 km (0.051 R)
• M13: 6,890,777 km (0.071 R)
• M14: 7,787,766 km (0.051 R)
• M15: 8,813,858 km (0.111 R)
• M16: 9,387,266 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.1

Radius: 10.3

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.46 AU - 1.74 AU

Year: 1350 Days

Day: 14.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,465,439 km

• M1: 128,056 km (0.111 R)
• M2: 523,742 km (0.081 R)
• M3: 922,121 km (0.046 R)
• M4: 1,328,429 km (0.062 R)
• M5: 1,742,516 km (0.092 R)
• M6: 2,137,454 km (0.046 R)
• M7: 2,978,194 km (0.028 R)
• M8: 3,580,475 km (0.117 R)
• M9: 4,043,780 km (0.093 R)
• M10: 4,431,388 km (0.111 R)
• M11: 4,803,288 km (0.104 R)
• M12: 5,175,039 km (0.052 R)
• M13: 6,431,512 km (0.095 R)
• M14: 7,994,361 km (0.099 R)
• M15: 8,940,866 km (0.092 R)
• M16: 10,498,479 km (0.095 R)
• M17: 11,817,185 km (0.086 R)
• M18: 12,420,363 km (0.106 R)
• M19: 13,606,525 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.6

Radius: 3.1

Gravity: 12.65 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.34 AU - 7.74 AU

Year: 11153 Days

Day: 16.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 125 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,465,439 km

• M1: 38,596 km (0.036 R)
• M2: 589,266 km (0.049 R)
• M3: 758,910 km (0.112 R)
• M4: 1,399,787 km (0.118 R)
• M5: 3,218,449 km (0.077 R)
• M6: 6,605,943 km (0.07 R)
• M7: 10,133,760 km (0.115 R)
• M8: 10,973,453 km (0.104 R)
• M9: 13,928,011 km (0.109 R)
• M10: 23,311,387 km (0.062 R)
• M11: 24,147,041 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 984.6

Radius: 3.6

Gravity: 75.97 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.39 AU - 12.05 AU

Year: 20208 Days

Day: 15.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 86,465,439 km

• M1: 44,879 km (0.081 R)
• M2: 190,438 km (0.086 R)
• M3: 354,248 km (0.097 R)
• M4: 583,132 km (0.099 R)
• M5: 1,082,640 km (0.081 R)
• M6: 1,269,637 km (0.085 R)
• M7: 1,477,728 km (0.089 R)
• M8: 1,745,807 km (0.084 R)
• M9: 2,594,476 km (0.049 R)
• M10: 2,797,630 km (0.076 R)
• M11: 3,323,018 km (0.117 R)
• M12: 3,943,849 km (0.116 R)
• M13: 5,131,805 km (0.09 R)
• M14: 5,290,379 km (0.065 R)
• M15: 10,088,132 km (0.062 R)
• M16: 12,621,722 km (0.114 R)
• M17: 12,765,785 km (0.111 R)
• M18: 14,738,981 km (0.112 R)
• M19: 14,898,751 km (0.096 R)
• M20: 15,549,203 km (0.119 R)
• M21: 18,340,849 km (0.047 R)
• M22: 20,049,107 km (0.074 R)
• M23: 21,653,993 km (0.106 R)
• M24: 23,342,653 km (0.09 R)
• M25: 24,777,596 km (0.111 R)
• M26: 27,458,689 km (0.104 R)
• M27: 28,558,383 km (0.085 R)
• M28: 33,114,237 km (0.103 R)
• M29: 34,080,041 km (0.086 R)
• M30: 35,492,095 km (0.07 R)
• M31: 36,503,526 km (0.117 R)
• M32: 37,237,603 km (0.028 R)
• M33: 38,735,077 km (0.109 R)
• M34: 42,330,812 km (0.081 R)
• M35: 46,313,257 km (0.101 R)
• M36: 47,520,212 km (0.102 R)
• M37: 50,357,336 km (0.056 R)
• M38: 50,538,349 km (0.092 R)
• M39: 53,870,642 km (0.064 R)
• M40: 65,168,872 km (0.115 R)
• M41: 73,439,988 km (0.085 R)
• M42: 77,946,774 km (0.076 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: 346 - 14,826 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit