🌌 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 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.4

Radius: 13.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.43 AU - 0.63 AU

Year: 266 Days

Day: 14.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,957,973 km

• M1: 165,605 km (0.106 R)
• M2: 654,790 km (0.089 R)
• M3: 1,157,888 km (0.108 R)
• M4: 1,656,647 km (0.078 R)
• M5: 2,937,055 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.6

Radius: 13.6

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.52 AU - 0.6 AU

Year: 289 Days

Day: 6.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,957,973 km

• M1: 169,195 km (0.086 R)
• M2: 602,131 km (0.061 R)
• M3: 1,214,735 km (0.052 R)
• M4: 1,666,969 km (0.078 R)
• M5: 2,241,126 km (0.071 R)
• M6: 2,728,067 km (0.069 R)
• M7: 3,202,890 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.9

Radius: 12.8

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.38 AU - 1.46 AU

Year: 1168 Days

Day: 9.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,957,973 km

• M1: 160,668 km (0.094 R)
• M2: 564,582 km (0.117 R)
• M3: 1,038,209 km (0.107 R)
• M4: 1,490,743 km (0.062 R)
• M5: 2,626,639 km (0.079 R)
• M6: 3,037,136 km (0.106 R)
• M7: 3,446,286 km (0.06 R)
• M8: 4,256,807 km (0.119 R)
• M9: 4,698,720 km (0.096 R)
• M10: 5,309,079 km (0.106 R)
• M11: 7,142,102 km (0.112 R)
• M12: 7,615,130 km (0.057 R)
• M13: 8,596,941 km (0.112 R)
• M14: 9,335,954 km (0.065 R)
• M15: 10,811,438 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.4

Radius: 13.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.44 AU - 1.78 AU

Year: 1410 Days

Day: 11.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,957,973 km

• M1: 167,849 km (0.056 R)
• M2: 683,662 km (0.057 R)
• M3: 1,148,463 km (0.107 R)
• M4: 1,622,838 km (0.11 R)
• M5: 2,049,341 km (0.101 R)
• M6: 2,637,410 km (0.095 R)
• M7: 3,591,097 km (0.11 R)
• M8: 4,382,170 km (0.098 R)
• M9: 5,593,464 km (0.116 R)
• M10: 6,968,568 km (0.071 R)
• M11: 8,227,883 km (0.043 R)
• M12: 9,012,823 km (0.076 R)
• M13: 10,732,151 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.2

Radius: 8.8

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.06 AU - 2.72 AU

Year: 2550 Days

Day: 9.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,957,973 km

• M1: 109,506 km (0.114 R)
• M2: 556,504 km (0.096 R)
• M3: 1,607,878 km (0.074 R)
• M4: 1,900,043 km (0.048 R)
• M5: 2,254,739 km (0.1 R)
• M6: 2,714,005 km (0.068 R)
• M7: 3,132,131 km (0.046 R)
• M8: 3,667,541 km (0.079 R)
• M9: 4,325,622 km (0.092 R)
• M10: 7,547,811 km (0.117 R)
• M11: 7,891,587 km (0.107 R)
• M12: 9,372,456 km (0.113 R)
• M13: 9,880,191 km (0.117 R)
• M14: 10,637,306 km (0.053 R)
• M15: 12,054,596 km (0.112 R)
• M16: 12,698,914 km (0.052 R)
• M17: 13,963,016 km (0.084 R)
• M18: 16,425,697 km (0.03 R)
• M19: 16,844,870 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.1

Radius: 9

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.02 AU - 3.22 AU

Year: 2927 Days

Day: 11 Hours

Environment

Temp: -211 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,957,973 km

• M1: 118,631 km (0.112 R)
• M2: 976,126 km (0.12 R)
• M3: 1,336,956 km (0.12 R)
• M4: 1,825,393 km (0.101 R)
• M5: 2,305,902 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 10.8

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.57 AU - 3.53 AU

Year: 3677 Days

Day: 7.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,957,973 km

• M1: 134,339 km (0.1 R)
• M2: 536,159 km (0.082 R)
• M3: 990,338 km (0.115 R)
• M4: 1,495,231 km (0.05 R)
• M5: 3,725,585 km (0.099 R)
• M6: 4,827,074 km (0.108 R)
• M7: 5,381,335 km (0.111 R)
• M8: 5,748,897 km (0.104 R)
• M9: 7,126,693 km (0.087 R)
• M10: 11,698,404 km (0.1 R)
• M11: 14,682,732 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383.5

Radius: 4.7

Gravity: 17.36 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.76 AU - 6.78 AU

Year: 9567 Days

Day: 15.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,957,973 km

• M1: 62,682 km (0.111 R)
• M2: 215,271 km (0.093 R)
• M3: 716,125 km (0.1 R)
• M4: 1,188,405 km (0.034 R)
• M5: 2,014,186 km (0.09 R)
• M6: 5,289,631 km (0.095 R)
• M7: 6,258,128 km (0.095 R)
• M8: 6,966,025 km (0.042 R)
• M9: 8,666,205 km (0.119 R)
• M10: 11,321,268 km (0.096 R)
• M11: 12,368,303 km (0.086 R)
• M12: 12,970,883 km (0.114 R)
• M13: 13,251,080 km (0.107 R)
• M14: 14,835,022 km (0.115 R)
• M15: 16,738,057 km (0.066 R)
• M16: 22,435,193 km (0.106 R)
• M17: 28,729,074 km (0.045 R)
• M18: 32,584,361 km (0.084 R)
• M19: 34,261,054 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 860.6

Radius: 3.5

Gravity: 70.25 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.66 AU - 6.28 AU

Year: 10069 Days

Day: 19.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 51,957,973 km

• M1: 43,533 km (0.042 R)
• M2: 179,966 km (0.09 R)
• M3: 366,964 km (0.102 R)
• M4: 477,816 km (0.099 R)
• M5: 761,154 km (0.115 R)
• M6: 977,173 km (0.075 R)
• M7: 1,171,052 km (0.063 R)
• M8: 1,336,059 km (0.076 R)
• M9: 1,487,751 km (0.071 R)
• M10: 1,825,692 km (0.119 R)
• M11: 2,175,303 km (0.118 R)
• M12: 2,425,430 km (0.1 R)
• M13: 2,914,765 km (0.063 R)
• M14: 3,647,794 km (0.081 R)
• M15: 4,085,368 km (0.053 R)
• M16: 4,199,960 km (0.077 R)
• M17: 4,526,383 km (0.047 R)
• M18: 5,607,227 km (0.09 R)
• M19: 6,889,580 km (0.059 R)
• M20: 7,093,333 km (0.115 R)
• M21: 8,775,411 km (0.118 R)
• M22: 9,406,864 km (0.035 R)
• M23: 10,016,325 km (0.113 R)
• M24: 12,119,223 km (0.074 R)
• M25: 13,273,370 km (0.088 R)
• M26: 17,698,026 km (0.113 R)
• M27: 18,624,337 km (0.088 R)
• M28: 20,322,272 km (0.118 R)
• M29: 23,013,089 km (0.109 R)
• M30: 23,652,022 km (0.119 R)
• M31: 24,208,825 km (0.115 R)
• M32: 27,125,236 km (0.098 R)
• M33: 27,429,069 km (0.12 R)
• M34: 29,942,612 km (0.059 R)
• M35: 30,703,617 km (0.08 R)
• M36: 33,294,951 km (0.063 R)
• M37: 41,801,235 km (0.077 R)
• M38: 42,614,749 km (0.115 R)
• M39: 50,416,128 km (0.03 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 14,501 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit