🌌 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: 584.5

Radius: 11.3

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.46 AU - 0.6 AU

Year: 262 Days

Day: 8.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,396,481 km

• M1: 140,772 km (0.092 R)
• M2: 534,364 km (0.107 R)
• M3: 891,155 km (0.082 R)
• M4: 1,367,175 km (0.065 R)
• M5: 1,851,423 km (0.098 R)
• M6: 2,280,470 km (0.078 R)
• M7: 2,686,927 km (0.087 R)
• M8: 3,054,489 km (0.095 R)
• M9: 3,972,721 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.7

Radius: 10.1

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.7 AU - 0.86 AU

Year: 467 Days

Day: 8.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,396,481 km

• M1: 125,662 km (0.08 R)
• M2: 446,400 km (0.099 R)
• M3: 797,506 km (0.077 R)
• M4: 1,189,901 km (0.067 R)
• M5: 1,542,803 km (0.073 R)
• M6: 2,222,576 km (0.071 R)
• M7: 2,823,510 km (0.082 R)
• M8: 3,267,816 km (0.103 R)
• M9: 3,631,339 km (0.058 R)
• M10: 4,427,199 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80

Radius: 10.9

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.84 AU - 1.18 AU

Year: 688 Days

Day: 10.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,396,481 km

• M1: 135,536 km (0.044 R)
• M2: 537,655 km (0.116 R)
• M3: 876,943 km (0.06 R)
• M4: 1,283,550 km (0.119 R)
• M5: 2,095,866 km (0.118 R)
• M6: 2,477,490 km (0.112 R)
• M7: 2,942,889 km (0.089 R)
• M8: 3,342,465 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.1

Radius: 8.1

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.9 AU - 2.76 AU

Year: 2412 Days

Day: 7.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,396,481 km

• M1: 101,128 km (0.087 R)
• M2: 521,648 km (0.089 R)
• M3: 1,271,731 km (0.081 R)
• M4: 2,091,229 km (0.113 R)
• M5: 2,436,351 km (0.108 R)
• M6: 2,742,578 km (0.104 R)
• M7: 3,107,447 km (0.049 R)
• M8: 3,380,014 km (0.083 R)
• M9: 4,295,852 km (0.115 R)
• M10: 4,591,907 km (0.102 R)
• M11: 4,946,902 km (0.116 R)
• M12: 5,225,005 km (0.115 R)
• M13: 6,889,880 km (0.073 R)
• M14: 7,149,432 km (0.093 R)
• M15: 7,811,702 km (0.085 R)
• M16: 9,293,020 km (0.111 R)
• M17: 10,266,902 km (0.1 R)
• M18: 10,568,042 km (0.102 R)
• M19: 12,373,689 km (0.096 R)
• M20: 13,822,245 km (0.113 R)
• M21: 14,097,206 km (0.111 R)
• M22: 15,380,456 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409.8

Radius: 3.9

Gravity: 26.94 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.7 AU - 6.8 AU

Year: 10598 Days

Day: 23.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,396,481 km

• M1: 48,470 km (0.061 R)
• M2: 195,824 km (0.075 R)
• M3: 539,001 km (0.107 R)
• M4: 811,269 km (0.078 R)
• M5: 1,322,146 km (0.081 R)
• M6: 1,528,292 km (0.101 R)
• M7: 1,831,078 km (0.108 R)
• M8: 3,002,579 km (0.118 R)
• M9: 3,244,927 km (0.101 R)
• M10: 4,291,963 km (0.05 R)
• M11: 4,514,265 km (0.038 R)
• M12: 8,230,276 km (0.088 R)
• M13: 8,837,195 km (0.084 R)
• M14: 11,458,599 km (0.07 R)
• M15: 12,604,369 km (0.084 R)
• M16: 14,867,635 km (0.12 R)
• M17: 15,184,333 km (0.082 R)
• M18: 15,505,371 km (0.081 R)
• M19: 16,496,008 km (0.039 R)
• M20: 16,903,811 km (0.066 R)
• M21: 27,566,998 km (0.053 R)
• M22: 29,312,656 km (0.05 R)
• M23: 32,172,518 km (0.054 R)
• M24: 41,107,999 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.7

Radius: 3.3

Gravity: 18.8 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.57 AU - 8.83 AU

Year: 13104 Days

Day: 16.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 74,396,481 km

• M1: 42,037 km (0.035 R)
• M2: 249,978 km (0.087 R)
• M3: 477,666 km (0.092 R)
• M4: 738,415 km (0.113 R)
• M5: 1,273,676 km (0.065 R)
• M6: 1,829,432 km (0.109 R)
• M7: 1,935,796 km (0.099 R)
• M8: 2,144,485 km (0.105 R)
• M9: 2,314,877 km (0.1 R)
• M10: 3,351,142 km (0.062 R)
• M11: 3,487,725 km (0.063 R)
• M12: 4,550,917 km (0.033 R)
• M13: 4,690,342 km (0.106 R)
• M14: 5,066,281 km (0.052 R)
• M15: 5,369,068 km (0.108 R)
• M16: 9,949,156 km (0.109 R)
• M17: 10,423,082 km (0.102 R)
• M18: 10,616,811 km (0.11 R)
• M19: 14,170,658 km (0.047 R)
• M20: 14,709,360 km (0.105 R)
• M21: 18,301,953 km (0.099 R)
• M22: 19,084,500 km (0.095 R)
• M23: 19,520,577 km (0.109 R)
• M24: 19,667,482 km (0.075 R)
• M25: 23,582,160 km (0.112 R)
• M26: 24,000,136 km (0.089 R)
• M27: 28,172,421 km (0.077 R)
• M28: 28,832,446 km (0.116 R)
• M29: 31,474,943 km (0.101 R)
• M30: 35,570,185 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.8

Radius: 4

Gravity: 49.86 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.2 AU - 9.54 AU

Year: 17917 Days

Day: 16.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,396,481 km

• M1: 49,816 km (0.082 R)
• M2: 267,182 km (0.081 R)
• M3: 483,351 km (0.111 R)
• M4: 1,562,400 km (0.119 R)
• M5: 1,881,792 km (0.107 R)
• M6: 3,210,071 km (0.065 R)
• M7: 3,460,947 km (0.112 R)
• M8: 4,129,350 km (0.043 R)
• M9: 6,085,342 km (0.027 R)
• M10: 7,621,712 km (0.118 R)
• M11: 7,967,433 km (0.102 R)
• M12: 8,479,207 km (0.12 R)
• M13: 10,204,819 km (0.097 R)
• M14: 10,869,482 km (0.083 R)
• M15: 13,246,592 km (0.099 R)
• M16: 22,712,248 km (0.098 R)
• M17: 27,339,609 km (0.034 R)
• M18: 30,299,104 km (0.111 R)
• M19: 33,334,594 km (0.107 R)
• M20: 33,465,193 km (0.071 R)
• M21: 35,739,829 km (0.117 R)
• M22: 36,151,672 km (0.12 R)
• M23: 44,747,865 km (0.077 R)
• M24: 49,176,261 km (0.093 R)
• M25: 61,998,294 km (0.109 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 12,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit