🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.2

Radius: 9.7

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.58 AU - 0.68 AU

Year: 351 Days

Day: 9.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,980,374 km

• M1: 120,725 km (0.034 R)
• M2: 425,008 km (0.073 R)
• M3: 797,357 km (0.047 R)
• M4: 1,188,705 km (0.06 R)
• M5: 1,591,721 km (0.114 R)
• M6: 1,920,388 km (0.076 R)
• M7: 2,225,568 km (0.078 R)
• M8: 2,548,250 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.2

Radius: 15

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.75 AU - 0.77 AU

Year: 466 Days

Day: 8.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 68,980,374 km

• M1: 186,848 km (0.077 R)
• M2: 1,021,155 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.1

Radius: 13

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.87 AU - 2.55 AU

Year: 2309 Days

Day: 8.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,980,374 km

• M1: 162,164 km (0.093 R)
• M2: 616,493 km (0.087 R)
• M3: 1,129,314 km (0.096 R)
• M4: 1,977,983 km (0.084 R)
• M5: 3,182,844 km (0.104 R)
• M6: 3,936,518 km (0.115 R)
• M7: 4,367,061 km (0.095 R)
• M8: 5,013,473 km (0.06 R)
• M9: 6,526,656 km (0.075 R)
• M10: 7,132,826 km (0.119 R)
• M11: 8,525,433 km (0.082 R)
• M12: 9,109,613 km (0.102 R)
• M13: 10,243,565 km (0.082 R)
• M14: 11,103,902 km (0.109 R)
• M15: 12,054,297 km (0.087 R)
• M16: 12,879,629 km (0.046 R)
• M17: 15,083,654 km (0.092 R)
• M18: 17,969,397 km (0.045 R)
• M19: 19,162,590 km (0.089 R)
• M20: 19,867,644 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.9

Radius: 8.7

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.36 AU - 3.78 AU

Year: 4741 Days

Day: 8 Hours

Environment

Temp: -217 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,980,374 km

• M1: 108,608 km (0.08 R)
• M2: 401,969 km (0.07 R)
• M3: 1,372,261 km (0.036 R)
• M4: 1,960,330 km (0.089 R)
• M5: 2,346,891 km (0.047 R)
• M6: 2,677,203 km (0.102 R)
• M7: 3,071,394 km (0.055 R)
• M8: 3,343,662 km (0.108 R)
• M9: 4,577,695 km (0.114 R)
• M10: 5,805,744 km (0.049 R)
• M11: 9,103,629 km (0.109 R)
• M12: 13,980,071 km (0.059 R)
• M13: 16,166,593 km (0.099 R)
• M14: 17,636,691 km (0.08 R)
• M15: 18,017,717 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.6

Radius: 12.5

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.55 AU - 3.79 AU

Year: 4942 Days

Day: 5.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,980,374 km

• M1: 155,432 km (0.115 R)
• M2: 556,504 km (0.085 R)
• M3: 1,103,284 km (0.05 R)
• M4: 1,689,858 km (0.063 R)
• M5: 2,139,848 km (0.111 R)
• M6: 2,820,518 km (0.11 R)
• M7: 3,827,611 km (0.075 R)
• M8: 5,189,700 km (0.104 R)
• M9: 5,867,976 km (0.077 R)
• M10: 6,821,513 km (0.111 R)
• M11: 7,910,287 km (0.092 R)
• M12: 8,369,851 km (0.045 R)
• M13: 8,847,218 km (0.105 R)
• M14: 9,617,049 km (0.119 R)
• M15: 10,557,122 km (0.093 R)
• M16: 13,746,548 km (0.102 R)
• M17: 17,351,707 km (0.085 R)
• M18: 20,802,482 km (0.04 R)
• M19: 22,372,511 km (0.083 R)
• M20: 23,150,869 km (0.088 R)
• M21: 24,836,388 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.1

Radius: 10.2

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.88 AU - 6.1 AU

Year: 7835 Days

Day: 9.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,980,374 km

• M1: 127,009 km (0.099 R)
• M2: 479,910 km (0.077 R)
• M3: 1,088,325 km (0.107 R)
• M4: 1,680,582 km (0.066 R)
• M5: 2,363,048 km (0.082 R)
• M6: 2,768,608 km (0.105 R)
• M7: 3,382,109 km (0.103 R)
• M8: 4,519,352 km (0.089 R)
• M9: 5,342,589 km (0.11 R)
• M10: 6,452,605 km (0.115 R)
• M11: 7,531,056 km (0.108 R)
• M12: 8,076,191 km (0.096 R)
• M13: 11,066,951 km (0.092 R)
• M14: 11,916,667 km (0.114 R)
• M15: 16,951,832 km (0.07 R)
• M16: 18,991,749 km (0.089 R)
• M17: 19,324,604 km (0.104 R)
• M18: 22,721,822 km (0.071 R)
• M19: 23,324,402 km (0.068 R)
• M20: 24,482,739 km (0.109 R)
• M21: 25,760,155 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.6

Radius: 11.4

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 4.55 AU - 5.46 AU

Year: 7859 Days

Day: 8.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 127 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,980,374 km

• M1: 143,016 km (0.119 R)
• M2: 498,460 km (0.1 R)
• M3: 990,488 km (0.116 R)
• M4: 1,621,641 km (0.085 R)
• M5: 2,029,894 km (0.102 R)
• M6: 2,656,858 km (0.067 R)
• M7: 3,058,528 km (0.115 R)
• M8: 3,665,746 km (0.09 R)
• M9: 6,321,108 km (0.097 R)
• M10: 7,080,617 km (0.097 R)
• M11: 8,022,036 km (0.097 R)
• M12: 8,738,012 km (0.096 R)
• M13: 9,867,775 km (0.072 R)
• M14: 11,767,967 km (0.083 R)
• M15: 13,664,868 km (0.042 R)
• M16: 14,259,669 km (0.069 R)
• M17: 19,958,151 km (0.068 R)
• M18: 20,492,365 km (0.037 R)
• M19: 22,725,113 km (0.086 R)
• M20: 28,142,052 km (0.042 R)
• M21: 29,008,074 km (0.081 R)
• M22: 34,910,010 km (0.098 R)
• M23: 36,814,241 km (0.035 R)
• M24: 37,387,201 km (0.092 R)
• M25: 39,738,879 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 559.3

Radius: 6.5

Gravity: 13.24 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 8.84 AU - 9.24 AU

Year: 19106 Days

Day: 24.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 68,980,374 km

• M1: 80,932 km (0.083 R)
• M2: 347,516 km (0.079 R)
• M3: 941,270 km (0.108 R)
• M4: 1,209,948 km (0.059 R)
• M5: 1,642,435 km (0.035 R)
• M6: 2,093,921 km (0.073 R)
• M7: 3,431,177 km (0.052 R)
• M8: 3,861,420 km (0.077 R)
• M9: 4,359,432 km (0.077 R)
• M10: 7,008,361 km (0.076 R)
• M11: 9,274,320 km (0.081 R)
• M12: 10,690,713 km (0.096 R)
• M13: 12,507,728 km (0.097 R)
• M14: 14,448,312 km (0.048 R)
• M15: 15,037,728 km (0.052 R)
• M16: 16,982,949 km (0.118 R)
• M17: 17,973,586 km (0.081 R)
• M18: 19,442,338 km (0.079 R)
• M19: 24,636,675 km (0.051 R)
• M20: 25,583,779 km (0.104 R)
• M21: 27,774,789 km (0.102 R)
• M22: 28,341,466 km (0.109 R)
• M23: 32,526,317 km (0.111 R)
• M24: 41,063,868 km (0.034 R)
• M25: 42,693,138 km (0.093 R)
• M26: 42,993,979 km (0.103 R)
• M27: 44,057,919 km (0.076 R)
• M28: 48,489,307 km (0.09 R)
• M29: 49,476,055 km (0.088 R)
• M30: 49,974,515 km (0.095 R)
• M31: 50,812,562 km (0.038 R)
• M32: 51,830,576 km (0.045 R)
• M33: 56,218,880 km (0.029 R)
• M34: 57,307,653 km (0.091 R)
• M35: 63,353,352 km (0.08 R)
• M36: 64,137,693 km (0.101 R)
• M37: 65,525,962 km (0.106 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 15,451 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit