🌌 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: 277.1

Radius: 13.4

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.47 AU - 0.59 AU

Year: 262 Days

Day: 8.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 32,979,668 km

• M1: 183,856 km (0.119 R)
• M2: 697,425 km (0.092 R)
• M3: 1,159,683 km (0.072 R)
• M4: 1,815,669 km (0.112 R)
• M5: 3,098,172 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.3

Radius: 8.7

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.6 AU - 0.82 AU

Year: 406 Days

Day: 9.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,979,668 km

• M1: 108,159 km (0.062 R)
• M2: 416,331 km (0.091 R)
• M3: 715,078 km (0.061 R)
• M4: 1,330,523 km (0.049 R)
• M5: 1,623,436 km (0.092 R)
• M6: 2,074,623 km (0.096 R)
• M7: 2,439,642 km (0.097 R)
• M8: 2,958,298 km (0.088 R)
• M9: 3,340,221 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.1

Radius: 12.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.78 AU - 0.82 AU

Year: 485 Days

Day: 10.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,979,668 km

• M1: 160,519 km (0.066 R)
• M2: 576,101 km (0.105 R)
• M3: 1,085,781 km (0.077 R)
• M4: 1,576,911 km (0.11 R)
• M5: 2,140,446 km (0.085 R)
• M6: 2,569,643 km (0.065 R)
• M7: 3,024,719 km (0.079 R)
• M8: 3,968,981 km (0.114 R)
• M9: 4,384,414 km (0.075 R)
• M10: 4,814,059 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.3

Radius: 11.4

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.22 AU - 1.8 AU

Year: 1259 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,979,668 km

• M1: 142,417 km (0.116 R)
• M2: 544,387 km (0.069 R)
• M3: 1,002,755 km (0.101 R)
• M4: 1,448,407 km (0.075 R)
• M5: 2,247,409 km (0.111 R)
• M6: 2,678,251 km (0.105 R)
• M7: 3,248,368 km (0.095 R)
• M8: 3,755,206 km (0.096 R)
• M9: 4,262,941 km (0.097 R)
• M10: 4,853,254 km (0.101 R)
• M11: 5,356,352 km (0.05 R)
• M12: 5,787,792 km (0.109 R)
• M13: 7,322,367 km (0.114 R)
• M14: 7,725,832 km (0.119 R)
• M15: 8,358,931 km (0.077 R)
• M16: 8,771,970 km (0.06 R)
• M17: 9,198,773 km (0.101 R)
• M18: 9,729,098 km (0.073 R)
• M19: 10,124,634 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.1

Radius: 14.5

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.58 AU - 1.98 AU

Year: 1611 Days

Day: 14.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,979,668 km

• M1: 181,911 km (0.063 R)
• M2: 647,160 km (0.09 R)
• M3: 1,124,378 km (0.101 R)
• M4: 2,234,843 km (0.078 R)
• M5: 2,745,420 km (0.093 R)
• M6: 3,720,200 km (0.074 R)
• M7: 4,231,226 km (0.087 R)
• M8: 5,487,100 km (0.113 R)
• M9: 6,352,524 km (0.097 R)
• M10: 7,391,182 km (0.108 R)
• M11: 8,204,546 km (0.102 R)
• M12: 8,821,487 km (0.057 R)
• M13: 9,370,212 km (0.105 R)
• M14: 10,500,574 km (0.106 R)
• M15: 11,378,414 km (0.108 R)
• M16: 12,029,464 km (0.037 R)
• M17: 13,787,837 km (0.059 R)
• M18: 15,618,616 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.4

Radius: 10.7

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.28 AU - 5.5 AU

Year: 8487 Days

Day: 10.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,979,668 km

• M1: 133,142 km (0.098 R)
• M2: 972,536 km (0.082 R)
• M3: 1,447,359 km (0.115 R)
• M4: 2,506,064 km (0.116 R)
• M5: 2,956,054 km (0.114 R)
• M6: 4,308,419 km (0.108 R)
• M7: 5,046,983 km (0.115 R)
• M8: 6,241,074 km (0.076 R)
• M9: 9,637,244 km (0.088 R)
• M10: 11,516,642 km (0.054 R)
• M11: 14,963,078 km (0.084 R)
• M12: 21,021,642 km (0.12 R)
• M13: 24,763,384 km (0.084 R)
• M14: 30,412,798 km (0.093 R)
• M15: 33,535,654 km (0.119 R)
• M16: 37,441,953 km (0.069 R)
• M17: 41,393,432 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.8

Radius: 3.8

Gravity: 8.85 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.23 AU - 7.25 AU

Year: 13213 Days

Day: 22.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,979,668 km

• M1: 49,068 km (0.075 R)
• M2: 269,575 km (0.072 R)
• M3: 537,505 km (0.118 R)
• M4: 1,770,042 km (0.058 R)
• M5: 2,061,459 km (0.067 R)
• M6: 2,202,679 km (0.098 R)
• M7: 2,452,507 km (0.105 R)
• M8: 2,929,725 km (0.111 R)
• M9: 3,315,837 km (0.104 R)
• M10: 3,735,010 km (0.056 R)
• M11: 4,313,804 km (0.114 R)
• M12: 5,118,491 km (0.076 R)
• M13: 6,242,869 km (0.027 R)
• M14: 7,858,077 km (0.092 R)
• M15: 9,174,987 km (0.09 R)
• M16: 9,429,453 km (0.031 R)
• M17: 20,271,858 km (0.066 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: 238 - 18,656 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit