🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.2

Radius: 11.7

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.82 AU - 0.96 AU

Year: 580 Days

Day: 10.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,860,922 km

• M1: 145,559 km (0.109 R)
• M2: 646,712 km (0.066 R)
• M3: 1,052,720 km (0.087 R)
• M4: 1,698,684 km (0.094 R)
• M5: 3,644,503 km (0.092 R)
• M6: 4,114,540 km (0.026 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.9

Radius: 8.4

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.03 AU - 2.41 AU

Year: 2283 Days

Day: 5.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,860,922 km

• M1: 104,419 km (0.113 R)
• M2: 413,040 km (0.112 R)
• M3: 1,137,393 km (0.093 R)
• M4: 1,433,148 km (0.091 R)
• M5: 2,602,105 km (0.044 R)
• M6: 3,329,450 km (0.081 R)
• M7: 4,104,218 km (0.101 R)
• M8: 4,743,748 km (0.088 R)
• M9: 6,139,497 km (0.097 R)
• M10: 7,300,077 km (0.089 R)
• M11: 7,759,342 km (0.089 R)
• M12: 9,864,484 km (0.111 R)
• M13: 10,198,835 km (0.094 R)
• M14: 10,540,816 km (0.046 R)
• M15: 11,167,481 km (0.103 R)
• M16: 13,741,013 km (0.085 R)
• M17: 16,425,397 km (0.119 R)
• M18: 16,790,416 km (0.094 R)
• M19: 17,917,935 km (0.11 R)
• M20: 18,810,436 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.9

Radius: 14.8

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.18 AU - 2.3 AU

Year: 2314 Days

Day: 11.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,860,922 km

• M1: 185,053 km (0.098 R)
• M2: 722,707 km (0.108 R)
• M3: 1,501,663 km (0.118 R)
• M4: 2,096,913 km (0.108 R)
• M5: 3,007,665 km (0.043 R)
• M6: 4,095,840 km (0.112 R)
• M7: 4,691,389 km (0.113 R)
• M8: 5,344,384 km (0.111 R)
• M9: 6,202,777 km (0.118 R)
• M10: 6,991,307 km (0.079 R)
• M11: 8,136,030 km (0.1 R)
• M12: 8,862,178 km (0.101 R)
• M13: 13,242,852 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.8

Radius: 13.2

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.67 AU - 2.71 AU

Year: 3045 Days

Day: 13.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,860,922 km

• M1: 164,258 km (0.115 R)
• M2: 579,542 km (0.089 R)
• M3: 1,012,478 km (0.079 R)
• M4: 1,478,775 km (0.095 R)
• M5: 2,043,058 km (0.099 R)
• M6: 3,166,987 km (0.073 R)
• M7: 4,274,460 km (0.06 R)
• M8: 5,015,119 km (0.086 R)
• M9: 6,644,389 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.3

Radius: 13.1

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.93 AU - 3.19 AU

Year: 3695 Days

Day: 13.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 37,860,922 km

• M1: 163,062 km (0.11 R)
• M2: 609,312 km (0.085 R)
• M3: 1,157,140 km (0.1 R)
• M4: 1,614,011 km (0.104 R)
• M5: 2,111,574 km (0.083 R)
• M6: 2,540,022 km (0.098 R)
• M7: 2,975,651 km (0.118 R)
• M8: 3,386,148 km (0.097 R)
• M9: 4,106,013 km (0.054 R)
• M10: 4,525,784 km (0.115 R)
• M11: 6,270,694 km (0.119 R)
• M12: 6,709,614 km (0.037 R)
• M13: 7,682,299 km (0.12 R)
• M14: 8,393,039 km (0.108 R)
• M15: 9,868,373 km (0.078 R)
• M16: 10,999,483 km (0.098 R)
• M17: 11,510,060 km (0.038 R)
• M18: 14,556,022 km (0.118 R)
• M19: 15,912,726 km (0.093 R)
• M20: 17,068,818 km (0.11 R)
• M21: 19,486,020 km (0.095 R)
• M22: 21,197,569 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111

Radius: 9.4

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.7 AU - 4.12 AU

Year: 4347 Days

Day: 14.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,860,922 km

• M1: 116,836 km (0.09 R)
• M2: 526,734 km (0.119 R)
• M3: 986,000 km (0.048 R)
• M4: 1,499,868 km (0.071 R)
• M5: 1,814,173 km (0.107 R)
• M6: 2,172,909 km (0.042 R)
• M7: 2,472,703 km (0.076 R)
• M8: 2,930,622 km (0.106 R)
• M9: 3,998,751 km (0.106 R)
• M10: 4,452,781 km (0.113 R)
• M11: 4,753,772 km (0.116 R)
• M12: 5,693,246 km (0.106 R)
• M13: 6,268,749 km (0.037 R)
• M14: 6,751,651 km (0.029 R)
• M15: 7,648,939 km (0.118 R)
• M16: 9,514,125 km (0.032 R)
• M17: 9,846,532 km (0.103 R)
• M18: 13,279,803 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.9

Radius: 8.7

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.36 AU - 4.48 AU

Year: 5357 Days

Day: 14.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,860,922 km

• M1: 109,356 km (0.072 R)
• M2: 402,717 km (0.08 R)
• M3: 769,531 km (0.113 R)
• M4: 2,232,898 km (0.095 R)
• M5: 3,554,445 km (0.03 R)
• M6: 3,854,539 km (0.076 R)
• M7: 4,135,334 km (0.115 R)
• M8: 4,621,078 km (0.088 R)
• M9: 6,877,313 km (0.108 R)
• M10: 8,402,763 km (0.087 R)
• M11: 11,522,178 km (0.059 R)
• M12: 12,220,052 km (0.099 R)

Asteroid Belt

Center: 4.64 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.6

Radius: 11.1

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.92 AU - 5.8 AU

Year: 8566 Days

Day: 11.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 90.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,860,922 km

• M1: 182,061 km (0.106 R)
• M2: 555,008 km (0.047 R)
• M3: 1,140,235 km (0.112 R)
• M4: 1,938,938 km (0.046 R)
• M5: 2,329,388 km (0.076 R)
• M6: 3,781,685 km (0.12 R)
• M7: 4,758,708 km (0.101 R)
• M8: 5,540,656 km (0.117 R)
• M9: 6,908,280 km (0.119 R)
• M10: 9,546,738 km (0.118 R)
• M11: 10,739,482 km (0.099 R)
• M12: 11,090,588 km (0.114 R)
• M13: 18,088,178 km (0.095 R)
• M14: 18,802,358 km (0.083 R)
• M15: 21,135,935 km (0.088 R)
• M16: 23,488,062 km (0.09 R)
• M17: 27,196,444 km (0.037 R)
• M18: 31,892,471 km (0.106 R)
• M19: 35,861,901 km (0.042 R)
• M20: 38,958,427 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.8

Radius: 4.4

Gravity: 10.58 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 6.42 AU - 7.62 AU

Year: 12839 Days

Day: 19.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,860,922 km

• M1: 54,753 km (0.115 R)
• M2: 212,429 km (0.051 R)
• M3: 696,528 km (0.115 R)
• M4: 957,875 km (0.066 R)
• M5: 1,938,788 km (0.12 R)
• M6: 2,756,790 km (0.106 R)
• M7: 3,188,230 km (0.101 R)
• M8: 8,343,971 km (0.108 R)
• M9: 11,527,563 km (0.077 R)
• M10: 11,942,248 km (0.041 R)
• M11: 13,077,846 km (0.094 R)
• M12: 14,822,456 km (0.12 R)
• M13: 15,499,237 km (0.107 R)
• M14: 15,813,542 km (0.058 R)
• M15: 16,390,092 km (0.028 R)
• M16: 28,544,321 km (0.064 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 210 - 15,338 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit