🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.3

Radius: 12.9

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.82 AU - 0.86 AU

Year: 497 Days

Day: 8.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,243,546 km

• M1: 160,369 km (0.083 R)
• M2: 829,969 km (0.102 R)
• M3: 1,382,733 km (0.115 R)
• M4: 1,987,408 km (0.038 R)
• M5: 2,449,067 km (0.12 R)
• M6: 3,709,130 km (0.109 R)
• M7: 5,296,213 km (0.084 R)
• M8: 6,232,696 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.7

Radius: 14.6

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.83 AU - 2.45 AU

Year: 2021 Days

Day: 14.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 134.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,243,546 km

• M1: 184,005 km (0.111 R)
• M2: 744,100 km (0.111 R)
• M3: 1,396,646 km (0.088 R)
• M4: 1,862,643 km (0.079 R)
• M5: 2,339,262 km (0.088 R)
• M6: 2,898,608 km (0.119 R)
• M7: 3,578,830 km (0.09 R)
• M8: 4,455,922 km (0.081 R)
• M9: 6,517,082 km (0.057 R)
• M10: 7,610,343 km (0.077 R)
• M11: 8,500,899 km (0.05 R)
• M12: 10,127,776 km (0.111 R)
• M13: 11,310,646 km (0.076 R)
• M14: 12,136,875 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.2

Radius: 9.6

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.98 AU - 2.96 AU

Year: 2506 Days

Day: 6.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,243,546 km

• M1: 119,379 km (0.069 R)
• M2: 463,005 km (0.075 R)
• M3: 884,871 km (0.091 R)
• M4: 1,666,371 km (0.096 R)
• M5: 2,321,909 km (0.081 R)
• M6: 3,599,774 km (0.081 R)
• M7: 4,839,641 km (0.11 R)
• M8: 6,069,335 km (0.107 R)
• M9: 8,107,307 km (0.063 R)
• M10: 9,495,575 km (0.116 R)
• M11: 11,258,137 km (0.064 R)
• M12: 12,059,832 km (0.117 R)
• M13: 12,375,185 km (0.043 R)
• M14: 13,145,913 km (0.104 R)
• M15: 14,339,853 km (0.082 R)
• M16: 14,783,262 km (0.064 R)
• M17: 15,190,168 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.4

Radius: 13.6

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.61 AU - 4.01 AU

Year: 3888 Days

Day: 6.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,243,546 km

• M1: 169,195 km (0.037 R)
• M2: 618,886 km (0.073 R)
• M3: 1,109,867 km (0.104 R)
• M4: 1,729,651 km (0.053 R)
• M5: 2,526,259 km (0.053 R)
• M6: 3,217,102 km (0.063 R)
• M7: 4,122,169 km (0.059 R)
• M8: 4,697,373 km (0.109 R)
• M9: 5,775,824 km (0.039 R)
• M10: 7,213,011 km (0.064 R)
• M11: 8,646,607 km (0.06 R)
• M12: 10,564,751 km (0.082 R)
• M13: 11,187,527 km (0.037 R)
• M14: 12,653,736 km (0.11 R)
• M15: 13,407,709 km (0.119 R)
• M16: 15,678,754 km (0.031 R)
• M17: 16,905,756 km (0.113 R)
• M18: 20,016,644 km (0.042 R)
• M19: 20,902,114 km (0.104 R)
• M20: 21,459,964 km (0.097 R)
• M21: 21,884,822 km (0.113 R)
• M22: 22,898,048 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.9

Radius: 13.6

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.63 AU - 4.31 AU

Year: 4174 Days

Day: 13.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,243,546 km

• M1: 244,144 km (0.025 R)
• M2: 682,017 km (0.086 R)
• M3: 1,753,586 km (0.074 R)
• M4: 2,801,220 km (0.073 R)
• M5: 3,609,647 km (0.101 R)
• M6: 4,878,686 km (0.1 R)
• M7: 6,103,892 km (0.103 R)
• M8: 6,647,980 km (0.09 R)
• M9: 11,212,061 km (0.089 R)
• M10: 13,695,835 km (0.097 R)
• M11: 14,441,131 km (0.086 R)
• M12: 16,474,615 km (0.077 R)
• M13: 19,493,949 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.4

Radius: 14.1

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.32 AU - 3.84 AU

Year: 4374 Days

Day: 9.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,243,546 km

• M1: 175,329 km (0.112 R)
• M2: 618,438 km (0.053 R)
• M3: 1,063,940 km (0.078 R)
• M4: 2,132,518 km (0.039 R)
• M5: 2,848,343 km (0.108 R)
• M6: 3,439,853 km (0.036 R)
• M7: 3,903,906 km (0.103 R)
• M8: 4,679,272 km (0.118 R)
• M9: 5,206,006 km (0.108 R)
• M10: 6,301,511 km (0.066 R)
• M11: 7,113,678 km (0.113 R)
• M12: 8,621,624 km (0.085 R)
• M13: 10,443,128 km (0.12 R)
• M14: 13,355,649 km (0.081 R)
• M15: 15,784,071 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.7

Radius: 10.3

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.98 AU - 4.9 AU

Year: 5050 Days

Day: 7.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,243,546 km

• M1: 128,056 km (0.101 R)
• M2: 562,039 km (0.076 R)
• M3: 984,803 km (0.083 R)
• M4: 1,381,237 km (0.113 R)
• M5: 1,715,140 km (0.113 R)
• M6: 2,232,449 km (0.075 R)
• M7: 3,401,407 km (0.118 R)
• M8: 3,863,963 km (0.058 R)
• M9: 4,284,633 km (0.115 R)
• M10: 5,861,245 km (0.064 R)
• M11: 6,390,971 km (0.061 R)
• M12: 8,270,668 km (0.052 R)
• M13: 9,931,653 km (0.05 R)
• M14: 12,823,978 km (0.12 R)
• M15: 13,535,615 km (0.086 R)
• M16: 14,086,584 km (0.091 R)
• M17: 15,282,470 km (0.119 R)
• M18: 16,082,519 km (0.106 R)
• M19: 16,805,226 km (0.062 R)
• M20: 17,657,635 km (0.111 R)
• M21: 18,932,957 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.8

Radius: 4.4

Gravity: 17.76 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 6.22 AU - 6.32 AU

Year: 10137 Days

Day: 24.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,243,546 km

• M1: 54,753 km (0.084 R)
• M2: 474,674 km (0.118 R)
• M3: 971,638 km (0.09 R)
• M4: 1,220,569 km (0.106 R)
• M5: 1,983,369 km (0.093 R)
• M6: 2,194,451 km (0.099 R)
• M7: 3,043,120 km (0.084 R)
• M8: 3,346,804 km (0.108 R)
• M9: 8,345,916 km (0.097 R)
• M10: 9,744,506 km (0.097 R)
• M11: 10,596,316 km (0.116 R)
• M12: 11,703,341 km (0.095 R)
• M13: 12,829,813 km (0.102 R)
• M14: 18,200,526 km (0.084 R)
• M15: 20,681,756 km (0.109 R)
• M16: 24,984,490 km (0.113 R)
• M17: 26,571,574 km (0.053 R)
• M18: 30,336,354 km (0.052 R)
• M19: 33,803,733 km (0.118 R)
• M20: 34,979,722 km (0.066 R)
• M21: 35,851,878 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.7

Radius: 8

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.04 AU - 8.56 AU

Year: 12735 Days

Day: 23.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,243,546 km

• M1: 99,483 km (0.093 R)
• M2: 405,859 km (0.113 R)
• M3: 703,708 km (0.099 R)
• M4: 1,209,349 km (0.092 R)
• M5: 1,536,520 km (0.116 R)
• M6: 1,872,816 km (0.095 R)
• M7: 2,165,878 km (0.076 R)
• M8: 2,758,734 km (0.112 R)
• M9: 3,093,534 km (0.033 R)
• M10: 3,430,279 km (0.072 R)
• M11: 3,711,972 km (0.063 R)
• M12: 5,193,440 km (0.082 R)
• M13: 6,176,746 km (0.085 R)
• M14: 6,752,249 km (0.053 R)
• M15: 7,237,844 km (0.114 R)
• M16: 7,574,290 km (0.115 R)
• M17: 8,507,631 km (0.102 R)
• M18: 10,654,809 km (0.106 R)
• M19: 18,666,074 km (0.097 R)
• M20: 20,862,620 km (0.039 R)
• M21: 22,066,733 km (0.116 R)
• M22: 22,954,896 km (0.064 R)
• M23: 25,471,431 km (0.106 R)
• M24: 28,166,287 km (0.106 R)
• M25: 32,727,077 km (0.059 R)
• M26: 35,783,960 km (0.097 R)
• M27: 38,897,990 km (0.056 R)
• M28: 41,783,732 km (0.045 R)
• M29: 43,692,601 km (0.077 R)
• M30: 45,232,711 km (0.12 R)
• M31: 46,808,725 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 647.7

Radius: 3.3

Gravity: 59.48 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 7.07 AU - 8.05 AU

Year: 13421 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 57,243,546 km

• M1: 41,289 km (0.089 R)
• M2: 792,869 km (0.098 R)
• M3: 1,204,861 km (0.105 R)
• M4: 1,351,318 km (0.117 R)
• M5: 1,663,977 km (0.094 R)
• M6: 2,191,609 km (0.092 R)
• M7: 2,349,435 km (0.087 R)
• M8: 2,687,675 km (0.11 R)
• M9: 3,057,631 km (0.054 R)
• M10: 3,701,949 km (0.067 R)
• M11: 4,129,500 km (0.088 R)
• M12: 5,608,873 km (0.069 R)
• M13: 5,792,430 km (0.111 R)
• M14: 7,451,919 km (0.095 R)
• M15: 8,998,462 km (0.062 R)
• M16: 11,029,701 km (0.089 R)
• M17: 11,493,006 km (0.111 R)
• M18: 11,789,210 km (0.079 R)
• M19: 11,969,326 km (0.067 R)
• M20: 12,520,743 km (0.099 R)
• M21: 12,645,508 km (0.074 R)
• M22: 12,771,170 km (0.109 R)
• M23: 12,961,160 km (0.091 R)
• M24: 14,141,038 km (0.095 R)
• M25: 14,826,495 km (0.092 R)
• M26: 15,461,987 km (0.086 R)
• M27: 22,202,418 km (0.088 R)
• M28: 24,464,039 km (0.072 R)
• M29: 29,000,445 km (0.043 R)
• M30: 29,659,423 km (0.115 R)
• M31: 33,583,226 km (0.092 R)
• M32: 36,298,278 km (0.094 R)
• M33: 49,863,513 km (0.113 R)
• M34: 50,177,220 km (0.101 R)
• M35: 56,559,813 km (0.118 R)
• M36: 57,243,476 km (0.052 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 12,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit