🌌 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 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.51 AU - 0.75 AU

Year: 328 Days

Day: 16.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.6

Radius: 11.3

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.82 AU - 1.02 AU

Year: 579 Days

Day: 14.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,908,236 km

• M1: 140,921 km (0.101 R)
• M2: 736,919 km (0.07 R)
• M3: 1,188,405 km (0.111 R)
• M4: 1,655,450 km (0.062 R)
• M5: 2,443,681 km (0.074 R)
• M6: 3,024,869 km (0.081 R)
• M7: 3,593,042 km (0.118 R)
• M8: 3,964,493 km (0.092 R)
• M9: 4,435,427 km (0.072 R)
• M10: 5,220,367 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.2

Radius: 9.2

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.8 AU - 1.12 AU

Year: 617 Days

Day: 12.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,908,236 km

• M1: 114,442 km (0.03 R)
• M2: 403,765 km (0.074 R)
• M3: 699,370 km (0.059 R)
• M4: 1,008,140 km (0.111 R)
• M5: 1,559,259 km (0.047 R)
• M6: 2,242,322 km (0.036 R)
• M7: 3,136,768 km (0.117 R)
• M8: 3,539,186 km (0.087 R)
• M9: 4,207,590 km (0.11 R)
• M10: 4,525,336 km (0.084 R)
• M11: 4,891,850 km (0.117 R)
• M12: 5,540,956 km (0.111 R)
• M13: 6,036,124 km (0.107 R)
• M14: 6,600,707 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.9

Radius: 11.8

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.15 AU - 1.17 AU

Year: 820 Days

Day: 10.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,908,236 km

• M1: 146,756 km (0.1 R)
• M2: 679,773 km (0.089 R)
• M3: 1,492,538 km (0.104 R)
• M4: 1,903,932 km (0.094 R)
• M5: 2,637,111 km (0.088 R)
• M6: 3,193,765 km (0.052 R)
• M7: 4,594,749 km (0.086 R)
• M8: 5,616,203 km (0.114 R)
• M9: 6,849,937 km (0.082 R)
• M10: 7,662,852 km (0.111 R)

Asteroid Belt

Center: 1.81 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.6

Radius: 11.2

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.09 AU - 2.81 AU

Year: 2516 Days

Day: 5.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,908,236 km

• M1: 139,276 km (0.092 R)
• M2: 1,088,175 km (0.083 R)
• M3: 1,736,682 km (0.114 R)
• M4: 2,098,709 km (0.096 R)
• M5: 3,831,201 km (0.048 R)
• M6: 6,033,881 km (0.105 R)
• M7: 7,616,925 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.5

Radius: 8.4

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.51 AU - 3.45 AU

Year: 3375 Days

Day: 13.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,908,236 km

• M1: 116,836 km (0.045 R)
• M2: 483,650 km (0.06 R)
• M3: 850,314 km (0.065 R)
• M4: 2,409,124 km (0.108 R)
• M5: 3,191,521 km (0.059 R)
• M6: 4,176,623 km (0.12 R)
• M7: 5,125,522 km (0.088 R)
• M8: 5,663,925 km (0.095 R)
• M9: 6,099,105 km (0.096 R)
• M10: 7,734,210 km (0.111 R)
• M11: 8,373,442 km (0.116 R)
• M12: 9,379,039 km (0.088 R)
• M13: 9,680,628 km (0.047 R)
• M14: 10,624,441 km (0.112 R)
• M15: 11,671,626 km (0.06 R)
• M16: 12,064,919 km (0.113 R)
• M17: 13,298,054 km (0.118 R)
• M18: 13,679,080 km (0.108 R)
• M19: 17,106,068 km (0.081 R)
• M20: 18,957,192 km (0.065 R)
• M21: 19,562,016 km (0.086 R)
• M22: 19,931,074 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.1

Radius: 9.8

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.4 AU - 3.5 AU

Year: 4204 Days

Day: 9.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 51 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,908,236 km

• M1: 121,922 km (0.113 R)
• M2: 649,853 km (0.062 R)
• M3: 971,040 km (0.085 R)
• M4: 1,455,737 km (0.05 R)
• M5: 1,838,109 km (0.072 R)
• M6: 2,915,513 km (0.093 R)
• M7: 3,231,763 km (0.09 R)
• M8: 4,369,455 km (0.081 R)
• M9: 5,309,228 km (0.11 R)
• M10: 5,641,485 km (0.113 R)
• M11: 6,440,188 km (0.072 R)
• M12: 6,850,685 km (0.085 R)
• M13: 7,971,921 km (0.082 R)
• M14: 8,632,844 km (0.095 R)
• M15: 9,290,327 km (0.062 R)
• M16: 9,939,133 km (0.101 R)
• M17: 13,645,570 km (0.105 R)
• M18: 14,537,622 km (0.102 R)
• M19: 16,090,747 km (0.109 R)
• M20: 17,026,482 km (0.117 R)
• M21: 18,059,904 km (0.074 R)
• M22: 18,750,597 km (0.07 R)
• M23: 19,654,916 km (0.059 R)
• M24: 19,984,929 km (0.046 R)
• M25: 20,453,021 km (0.086 R)
• M26: 21,901,427 km (0.066 R)
• M27: 23,417,003 km (0.115 R)
• M28: 24,389,539 km (0.086 R)
• M29: 27,387,032 km (0.046 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.6

Radius: 10.3

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.64 AU - 4.88 AU

Year: 6813 Days

Day: 5.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,908,236 km

• M1: 128,056 km (0.078 R)
• M2: 1,418,188 km (0.104 R)
• M3: 1,942,678 km (0.12 R)
• M4: 4,160,915 km (0.09 R)
• M5: 4,819,595 km (0.117 R)
• M6: 5,268,987 km (0.11 R)
• M7: 6,344,595 km (0.114 R)
• M8: 7,491,113 km (0.046 R)
• M9: 8,770,624 km (0.086 R)
• M10: 17,849,270 km (0.064 R)
• M11: 23,081,156 km (0.053 R)
• M12: 24,590,748 km (0.106 R)
• M13: 27,805,607 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948

Radius: 8

Gravity: 14.81 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.63 AU - 6.63 AU

Year: 8763 Days

Day: 9.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 78.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,908,236 km

• M1: 99,483 km (0.058 R)
• M2: 384,167 km (0.087 R)
• M3: 782,846 km (0.029 R)
• M4: 1,148,313 km (0.116 R)
• M5: 1,669,363 km (0.071 R)
• M6: 2,283,462 km (0.038 R)
• M7: 6,963,482 km (0.069 R)
• M8: 7,658,962 km (0.091 R)
• M9: 10,023,805 km (0.111 R)
• M10: 10,963,430 km (0.114 R)
• M11: 12,132,387 km (0.113 R)
• M12: 13,505,845 km (0.095 R)
• M13: 14,979,833 km (0.111 R)
• M14: 15,997,248 km (0.074 R)
• M15: 19,562,166 km (0.12 R)
• M16: 20,203,791 km (0.083 R)
• M17: 23,533,989 km (0.114 R)
• M18: 29,033,506 km (0.049 R)
• M19: 30,718,427 km (0.105 R)
• M20: 32,024,416 km (0.111 R)
• M21: 32,467,675 km (0.111 R)
• M22: 34,629,962 km (0.107 R)
• M23: 39,365,632 km (0.093 R)
• M24: 40,002,471 km (0.117 R)
• M25: 41,690,084 km (0.106 R)
• M26: 42,086,219 km (0.065 R)
• M27: 46,186,248 km (0.114 R)
• M28: 48,187,718 km (0.087 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 341.7

Radius: 3.9

Gravity: 22.47 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.7 AU - 10.06 AU

Year: 17359 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 54,908,236 km

• M1: 48,769 km (0.116 R)
• M2: 514,168 km (0.116 R)
• M3: 895,493 km (0.083 R)
• M4: 1,456,934 km (0.1 R)
• M5: 2,037,972 km (0.077 R)
• M6: 2,872,578 km (0.079 R)
• M7: 3,719,901 km (0.039 R)
• M8: 4,026,427 km (0.062 R)
• M9: 4,200,708 km (0.111 R)
• M10: 5,047,582 km (0.114 R)
• M11: 5,353,509 km (0.084 R)
• M12: 5,744,259 km (0.064 R)
• M13: 7,762,185 km (0.101 R)
• M14: 8,169,689 km (0.103 R)
• M15: 8,929,048 km (0.114 R)
• M16: 10,532,288 km (0.12 R)
• M17: 15,253,896 km (0.047 R)
• M18: 18,544,601 km (0.12 R)
• M19: 20,954,323 km (0.07 R)
• M20: 22,369,220 km (0.118 R)
• M21: 22,824,147 km (0.049 R)
• M22: 24,608,999 km (0.074 R)
• M23: 27,613,373 km (0.066 R)
• M24: 29,855,845 km (0.116 R)
• M25: 33,620,476 km (0.06 R)
• M26: 35,801,314 km (0.115 R)
• M27: 37,052,849 km (0.115 R)
• M28: 41,253,109 km (0.104 R)
• M29: 43,608,378 km (0.095 R)
• M30: 44,747,117 km (0.108 R)
• M31: 45,179,305 km (0.117 R)
• M32: 46,935,434 km (0.115 R)
• M33: 49,654,376 km (0.078 R)
• M34: 51,209,296 km (0.081 R)
• M35: 52,956,898 km (0.093 R)
• M36: 54,415,926 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 176 - 16,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit