🌌 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 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.1

Radius: 12.4

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.58 AU - 0.64 AU

Year: 335 Days

Day: 7.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,199,813 km

• M1: 154,235 km (0.119 R)
• M2: 573,558 km (0.077 R)
• M3: 973,284 km (0.098 R)
• M4: 1,569,581 km (0.113 R)
• M5: 1,992,494 km (0.046 R)
• M6: 2,575,477 km (0.089 R)
• M7: 3,043,269 km (0.06 R)
• M8: 3,532,604 km (0.063 R)
• M9: 4,857,742 km (0.101 R)
• M10: 5,309,228 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.6

Radius: 10.6

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.99 AU - 1.29 AU

Year: 856 Days

Day: 5.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,199,813 km

• M1: 132,245 km (0.11 R)
• M2: 501,452 km (0.087 R)
• M3: 1,417,589 km (0.079 R)
• M4: 1,778,569 km (0.045 R)
• M5: 2,618,860 km (0.054 R)
• M6: 3,088,897 km (0.095 R)
• M7: 3,452,270 km (0.079 R)
• M8: 5,497,423 km (0.096 R)
• M9: 6,835,127 km (0.043 R)
• M10: 7,407,339 km (0.114 R)
• M11: 7,882,761 km (0.087 R)
• M12: 8,620,428 km (0.12 R)
• M13: 9,260,407 km (0.109 R)
• M14: 9,812,573 km (0.119 R)
• M15: 10,325,095 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.1

Radius: 13.6

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.07 AU - 1.23 AU

Year: 867 Days

Day: 11.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,199,813 km

• M1: 169,195 km (0.094 R)
• M2: 600,187 km (0.074 R)
• M3: 1,133,952 km (0.052 R)
• M4: 1,687,763 km (0.096 R)
• M5: 2,207,017 km (0.104 R)
• M6: 2,638,009 km (0.06 R)
• M7: 3,452,420 km (0.117 R)
• M8: 3,964,044 km (0.084 R)
• M9: 5,695,939 km (0.102 R)
• M10: 7,721,644 km (0.119 R)
• M11: 8,653,489 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118

Radius: 8.4

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.25 AU - 1.47 AU

Year: 1115 Days

Day: 5.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,199,813 km

• M1: 104,419 km (0.097 R)
• M2: 404,662 km (0.118 R)
• M3: 872,754 km (0.09 R)
• M4: 1,436,140 km (0.092 R)
• M5: 1,834,668 km (0.113 R)
• M6: 2,447,720 km (0.065 R)
• M7: 3,098,920 km (0.081 R)
• M8: 3,640,315 km (0.069 R)
• M9: 4,229,281 km (0.111 R)
• M10: 5,394,350 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.8

Radius: 10.8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.64 AU - 2.04 AU

Year: 1754 Days

Day: 6.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,199,813 km

• M1: 134,339 km (0.12 R)
• M2: 499,806 km (0.074 R)
• M3: 971,638 km (0.076 R)
• M4: 1,744,461 km (0.099 R)
• M5: 2,643,843 km (0.073 R)
• M6: 3,489,670 km (0.082 R)
• M7: 4,772,621 km (0.108 R)
• M8: 5,409,908 km (0.04 R)
• M9: 6,429,716 km (0.03 R)
• M10: 7,807,662 km (0.111 R)
• M11: 8,415,778 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.8

Radius: 11.9

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.37 AU - 4.29 AU

Year: 5269 Days

Day: 8.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,199,813 km

• M1: 148,251 km (0.076 R)
• M2: 584,030 km (0.119 R)
• M3: 1,098,946 km (0.069 R)
• M4: 1,793,678 km (0.084 R)
• M5: 2,592,681 km (0.061 R)
• M6: 3,327,206 km (0.07 R)
• M7: 4,056,645 km (0.109 R)
• M8: 4,583,529 km (0.089 R)
• M9: 5,601,543 km (0.107 R)
• M10: 7,683,945 km (0.116 R)
• M11: 8,608,011 km (0.079 R)
• M12: 9,117,093 km (0.113 R)
• M13: 11,173,016 km (0.106 R)
• M14: 12,654,933 km (0.116 R)
• M15: 13,836,307 km (0.083 R)
• M16: 15,947,432 km (0.065 R)
• M17: 17,947,855 km (0.057 R)
• M18: 21,645,466 km (0.103 R)
• M19: 22,077,355 km (0.095 R)
• M20: 22,883,986 km (0.077 R)
• M21: 25,581,834 km (0.117 R)
• M22: 26,635,901 km (0.074 R)
• M23: 29,091,101 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 448.9

Radius: 7.6

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.37 AU - 9.85 AU

Year: 16235 Days

Day: 24.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 27,199,813 km

• M1: 94,546 km (0.092 R)
• M2: 507,286 km (0.091 R)
• M3: 839,693 km (0.089 R)
• M4: 1,139,038 km (0.064 R)
• M5: 1,568,534 km (0.076 R)
• M6: 2,214,647 km (0.11 R)
• M7: 2,863,602 km (0.096 R)
• M8: 4,022,836 km (0.105 R)
• M9: 4,691,389 km (0.115 R)
• M10: 6,523,963 km (0.115 R)
• M11: 7,100,663 km (0.116 R)
• M12: 7,937,065 km (0.093 R)
• M13: 8,498,057 km (0.086 R)
• M14: 8,985,596 km (0.097 R)
• M15: 10,671,714 km (0.057 R)
• M16: 10,952,958 km (0.11 R)
• M17: 15,216,347 km (0.065 R)
• M18: 16,451,727 km (0.084 R)
• M19: 17,363,077 km (0.049 R)
• M20: 18,874,315 km (0.118 R)
• M21: 22,522,109 km (0.072 R)
• M22: 23,172,710 km (0.101 R)
• M23: 25,498,209 km (0.038 R)
• M24: 25,900,328 km (0.107 R)
• M25: 29,271,516 km (0.079 R)
• M26: 29,601,828 km (0.08 R)
• M27: 31,290,788 km (0.05 R)
• M28: 34,246,842 km (0.116 R)
• M29: 34,736,476 km (0.103 R)
• M30: 35,604,443 km (0.103 R)
• M31: 36,233,352 km (0.075 R)
• M32: 37,383,909 km (0.103 R)
• M33: 38,426,906 km (0.087 R)
• M34: 39,355,310 km (0.111 R)
• M35: 44,512,547 km (0.108 R)
• M36: 45,980,102 km (0.085 R)
• M37: 52,011,739 km (0.108 R)
• M38: 53,474,806 km (0.066 R)
• M39: 54,133,934 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.5

Radius: 3.8

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.76 AU - 11.7 AU

Year: 21334 Days

Day: 15.1 Hours

Environment

Temp: -242 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,199,813 km

• M1: 53,706 km (0.029 R)
• M2: 261,198 km (0.074 R)
• M3: 825,182 km (0.062 R)
• M4: 2,102,299 km (0.102 R)
• M5: 3,241,786 km (0.095 R)
• M6: 3,421,004 km (0.083 R)
• M7: 4,228,533 km (0.056 R)
• M8: 4,790,124 km (0.076 R)
• M9: 4,996,718 km (0.097 R)
• M10: 5,595,559 km (0.096 R)
• M11: 6,901,548 km (0.099 R)
• M12: 7,265,669 km (0.082 R)
• M13: 11,365,399 km (0.116 R)
• M14: 16,429,736 km (0.105 R)
• M15: 17,317,749 km (0.057 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: 267 - 11,706 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit