🌌 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: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.59 AU - 0.63 AU

Year: 303 Days

Day: 30.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.9

Radius: 11

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.75 AU - 1.21 AU

Year: 617 Days

Day: 8.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,580,392 km

• M1: 136,882 km (0.11 R)
• M2: 547,827 km (0.052 R)
• M3: 962,064 km (0.084 R)
• M4: 1,347,278 km (0.055 R)
• M5: 1,796,371 km (0.051 R)
• M6: 2,296,627 km (0.043 R)
• M7: 2,990,761 km (0.098 R)
• M8: 3,566,563 km (0.072 R)
• M9: 4,377,682 km (0.086 R)
• M10: 4,843,231 km (0.071 R)
• M11: 5,603,787 km (0.073 R)
• M12: 5,966,412 km (0.078 R)
• M13: 6,599,510 km (0.08 R)
• M14: 7,004,472 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.1

Radius: 9.3

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.78 AU - 1.24 AU

Year: 645 Days

Day: 12 Hours

Environment

Temp: -167 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,580,392 km

• M1: 115,938 km (0.107 R)
• M2: 407,205 km (0.097 R)
• M3: 838,646 km (0.112 R)
• M4: 1,758,523 km (0.086 R)
• M5: 2,480,034 km (0.085 R)
• M6: 4,468,040 km (0.09 R)
• M7: 4,796,407 km (0.08 R)
• M8: 5,613,361 km (0.028 R)
• M9: 6,075,020 km (0.037 R)
• M10: 7,273,448 km (0.03 R)
• M11: 7,775,948 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.3

Radius: 14.1

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.93 AU - 1.19 AU

Year: 694 Days

Day: 14.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,580,392 km

• M1: 175,478 km (0.108 R)
• M2: 614,398 km (0.053 R)
• M3: 1,284,597 km (0.101 R)
• M4: 1,758,972 km (0.109 R)
• M5: 2,585,949 km (0.073 R)
• M6: 3,102,660 km (0.064 R)
• M7: 3,745,033 km (0.041 R)
• M8: 4,237,360 km (0.108 R)
• M9: 5,119,239 km (0.066 R)
• M10: 5,882,936 km (0.114 R)
• M11: 6,468,014 km (0.098 R)
• M12: 7,069,696 km (0.114 R)
• M13: 7,545,268 km (0.113 R)
• M14: 8,535,755 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.2

Radius: 10

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.12 AU - 1.54 AU

Year: 975 Days

Day: 10.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,580,392 km

• M1: 124,316 km (0.074 R)
• M2: 606,619 km (0.103 R)
• M3: 924,664 km (0.072 R)
• M4: 1,291,478 km (0.099 R)
• M5: 1,707,360 km (0.074 R)
• M6: 2,173,507 km (0.111 R)
• M7: 2,547,951 km (0.073 R)
• M8: 3,997,255 km (0.088 R)
• M9: 4,327,717 km (0.099 R)
• M10: 4,676,429 km (0.104 R)
• M11: 5,323,440 km (0.067 R)
• M12: 5,894,455 km (0.089 R)
• M13: 6,546,702 km (0.078 R)
• M14: 7,378,765 km (0.06 R)

Asteroid Belt

Center: 1.73 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.5

Radius: 13.3

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.83 AU - 2.41 AU

Year: 1963 Days

Day: 8.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,580,392 km

• M1: 165,455 km (0.089 R)
• M2: 607,068 km (0.11 R)
• M3: 1,852,321 km (0.039 R)
• M4: 2,832,636 km (0.093 R)
• M5: 3,670,833 km (0.097 R)
• M6: 5,073,612 km (0.118 R)
• M7: 6,702,433 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.2

Radius: 8

Gravity: 12.49 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 2.49 AU - 3.29 AU

Year: 3124 Days

Day: 6.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,580,392 km

• M1: 99,632 km (0.07 R)
• M2: 474,076 km (0.038 R)
• M3: 829,371 km (0.107 R)
• M4: 1,837,959 km (0.075 R)
• M5: 2,137,903 km (0.087 R)
• M6: 3,504,480 km (0.063 R)
• M7: 4,754,370 km (0.068 R)
• M8: 5,666,019 km (0.112 R)
• M9: 7,731,667 km (0.102 R)
• M10: 8,483,994 km (0.118 R)
• M11: 9,321,892 km (0.105 R)
• M12: 9,587,578 km (0.093 R)
• M13: 10,992,601 km (0.076 R)
• M14: 11,591,292 km (0.028 R)
• M15: 12,211,525 km (0.102 R)
• M16: 12,667,948 km (0.092 R)
• M17: 13,809,828 km (0.104 R)
• M18: 15,596,027 km (0.109 R)
• M19: 16,683,155 km (0.114 R)
• M20: 21,738,067 km (0.11 R)
• M21: 23,023,860 km (0.056 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.4

Radius: 10.7

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.66 AU - 4.7 AU

Year: 5434 Days

Day: 6.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 74,580,392 km

• M1: 133,142 km (0.111 R)
• M2: 925,861 km (0.075 R)
• M3: 1,476,082 km (0.054 R)
• M4: 1,989,053 km (0.109 R)
• M5: 2,389,826 km (0.05 R)
• M6: 2,773,545 km (0.069 R)
• M7: 3,276,792 km (0.069 R)
• M8: 4,274,460 km (0.028 R)
• M9: 5,160,977 km (0.045 R)
• M10: 6,602,502 km (0.075 R)
• M11: 7,160,352 km (0.118 R)
• M12: 7,643,254 km (0.086 R)
• M13: 8,445,997 km (0.056 R)
• M14: 9,466,104 km (0.108 R)
• M15: 10,219,031 km (0.08 R)
• M16: 11,844,411 km (0.044 R)
• M17: 12,471,675 km (0.092 R)
• M18: 12,969,088 km (0.06 R)
• M19: 17,872,458 km (0.11 R)
• M20: 18,633,612 km (0.112 R)
• M21: 20,152,479 km (0.099 R)
• M22: 20,838,086 km (0.054 R)
• M23: 22,914,205 km (0.107 R)
• M24: 23,435,404 km (0.088 R)
• M25: 25,124,813 km (0.097 R)
• M26: 26,241,262 km (0.057 R)
• M27: 27,390,622 km (0.076 R)
• M28: 28,316,783 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766

Radius: 6.4

Gravity: 18.7 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 7.83 AU - 10.99 AU

Year: 18353 Days

Day: 21.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,580,392 km

• M1: 80,334 km (0.059 R)
• M2: 492,775 km (0.107 R)
• M3: 740,360 km (0.088 R)
• M4: 1,148,612 km (0.109 R)
• M5: 1,972,747 km (0.08 R)
• M6: 2,566,950 km (0.046 R)
• M7: 3,033,695 km (0.11 R)
• M8: 3,914,827 km (0.075 R)
• M9: 4,636,337 km (0.102 R)
• M10: 8,267,377 km (0.098 R)
• M11: 8,526,480 km (0.084 R)
• M12: 8,790,969 km (0.083 R)
• M13: 9,392,203 km (0.1 R)
• M14: 9,962,171 km (0.095 R)
• M15: 10,983,775 km (0.081 R)
• M16: 13,659,931 km (0.072 R)
• M17: 13,949,403 km (0.094 R)
• M18: 14,994,793 km (0.112 R)
• M19: 15,225,473 km (0.1 R)
• M20: 17,578,647 km (0.114 R)
• M21: 23,094,022 km (0.058 R)
• M22: 23,298,971 km (0.069 R)
• M23: 23,504,967 km (0.082 R)
• M24: 24,553,798 km (0.082 R)
• M25: 25,197,817 km (0.095 R)
• M26: 29,420,516 km (0.064 R)
• M27: 30,514,525 km (0.084 R)
• M28: 30,885,228 km (0.111 R)
• M29: 31,134,010 km (0.039 R)
• M30: 32,015,141 km (0.095 R)
• M31: 35,570,185 km (0.101 R)
• M32: 44,079,013 km (0.064 R)
• M33: 45,349,697 km (0.108 R)
• M34: 46,808,127 km (0.061 R)
• M35: 57,526,814 km (0.074 R)
• M36: 59,811,772 km (0.073 R)
• M37: 63,753,227 km (0.071 R)
• M38: 65,582,061 km (0.041 R)
• M39: 73,247,456 km (0.047 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 17,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit