🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.59 AU - 0.75 AU

Year: 360 Days

Day: 44.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,601,547 km

• M1: 318,494 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.3

Radius: 14.6

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.73 AU - 0.79 AU

Year: 435 Days

Day: 10.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,601,547 km

• M1: 181,612 km (0.114 R)
• M2: 719,416 km (0.06 R)
• M3: 1,319,902 km (0.112 R)
• M4: 2,007,753 km (0.033 R)
• M5: 2,488,112 km (0.082 R)
• M6: 2,976,998 km (0.098 R)
• M7: 3,519,440 km (0.108 R)
• M8: 4,214,920 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.5

Radius: 14.2

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.17 AU - 1.57 AU

Year: 1052 Days

Day: 11.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,601,547 km

• M1: 176,675 km (0.048 R)
• M2: 777,011 km (0.046 R)
• M3: 1,339,051 km (0.078 R)
• M4: 2,073,726 km (0.07 R)
• M5: 4,179,765 km (0.045 R)
• M6: 5,242,657 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.9

Radius: 11.2

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.16 AU - 1.78 AU

Year: 1169 Days

Day: 14.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,601,547 km

• M1: 139,724 km (0.086 R)
• M2: 535,261 km (0.078 R)
• M3: 901,776 km (0.118 R)
• M4: 1,283,550 km (0.079 R)
• M5: 1,653,804 km (0.096 R)
• M6: 2,303,807 km (0.099 R)
• M7: 2,884,995 km (0.112 R)
• M8: 3,724,389 km (0.087 R)
• M9: 4,193,528 km (0.075 R)
• M10: 4,614,346 km (0.103 R)
• M11: 5,156,639 km (0.038 R)
• M12: 5,863,040 km (0.107 R)
• M13: 6,368,980 km (0.054 R)
• M14: 7,492,909 km (0.101 R)
• M15: 9,209,694 km (0.096 R)
• M16: 9,865,531 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.7

Radius: 11.4

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.64 AU - 1.66 AU

Year: 1390 Days

Day: 13.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,601,547 km

• M1: 141,819 km (0.118 R)
• M2: 510,428 km (0.025 R)
• M3: 903,122 km (0.091 R)
• M4: 1,409,362 km (0.088 R)
• M5: 2,264,463 km (0.069 R)
• M6: 2,794,937 km (0.099 R)
• M7: 3,160,554 km (0.069 R)
• M8: 4,039,591 km (0.11 R)
• M9: 4,582,332 km (0.117 R)
• M10: 5,792,878 km (0.054 R)
• M11: 6,323,801 km (0.067 R)
• M12: 6,719,338 km (0.1 R)
• M13: 7,131,330 km (0.089 R)
• M14: 8,980,061 km (0.116 R)
• M15: 9,692,296 km (0.053 R)
• M16: 10,441,782 km (0.084 R)
• M17: 11,432,568 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98

Radius: 8.1

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.69 AU - 2.47 AU

Year: 1968 Days

Day: 7.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,601,547 km

• M1: 120,426 km (0.111 R)
• M2: 466,297 km (0.045 R)
• M3: 948,899 km (0.03 R)
• M4: 1,457,382 km (0.108 R)
• M5: 2,402,392 km (0.116 R)
• M6: 3,401,407 km (0.062 R)
• M7: 3,664,849 km (0.117 R)
• M8: 4,001,893 km (0.074 R)
• M9: 4,327,717 km (0.095 R)
• M10: 5,320,747 km (0.087 R)
• M11: 6,820,317 km (0.063 R)
• M12: 7,400,457 km (0.106 R)
• M13: 7,820,977 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.5

Radius: 14

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.77 AU - 2.85 AU

Year: 2303 Days

Day: 14.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,601,547 km

• M1: 174,132 km (0.049 R)
• M2: 623,524 km (0.101 R)
• M3: 1,173,446 km (0.091 R)
• M4: 2,226,764 km (0.114 R)
• M5: 2,775,639 km (0.089 R)
• M6: 3,238,046 km (0.088 R)
• M7: 4,112,894 km (0.119 R)
• M8: 4,842,333 km (0.112 R)
• M9: 6,953,608 km (0.107 R)
• M10: 8,109,401 km (0.06 R)
• M11: 8,624,916 km (0.117 R)
• M12: 9,455,483 km (0.117 R)
• M13: 10,095,762 km (0.069 R)
• M14: 12,627,556 km (0.117 R)
• M15: 15,145,588 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.6

Radius: 3

Gravity: 75.62 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.24 AU - 6.74 AU

Year: 9617 Days

Day: 20.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 157.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 46,601,547 km

• M1: 37,699 km (0.088 R)
• M2: 185,202 km (0.095 R)
• M3: 313,408 km (0.116 R)
• M4: 426,803 km (0.067 R)
• M5: 526,435 km (0.075 R)
• M6: 633,996 km (0.083 R)
• M7: 1,232,686 km (0.09 R)
• M8: 1,548,936 km (0.08 R)
• M9: 1,982,920 km (0.118 R)
• M10: 2,156,005 km (0.071 R)
• M11: 2,532,393 km (0.116 R)
• M12: 2,653,417 km (0.096 R)
• M13: 3,246,573 km (0.052 R)
• M14: 3,765,378 km (0.117 R)
• M15: 4,085,518 km (0.061 R)
• M16: 4,749,433 km (0.113 R)
• M17: 4,902,621 km (0.093 R)
• M18: 5,154,843 km (0.036 R)
• M19: 6,360,602 km (0.085 R)
• M20: 6,471,903 km (0.116 R)
• M21: 6,698,544 km (0.11 R)
• M22: 9,311,869 km (0.098 R)
• M23: 9,895,301 km (0.079 R)
• M24: 10,196,142 km (0.087 R)
• M25: 10,658,549 km (0.106 R)
• M26: 11,134,869 km (0.078 R)
• M27: 14,294,376 km (0.115 R)
• M28: 16,008,917 km (0.12 R)
• M29: 22,219,622 km (0.116 R)
• M30: 22,648,370 km (0.12 R)
• M31: 24,691,877 km (0.095 R)
• M32: 25,337,391 km (0.034 R)
• M33: 27,439,391 km (0.119 R)
• M34: 27,636,112 km (0.112 R)
• M35: 28,231,811 km (0.106 R)
• M36: 28,532,802 km (0.081 R)
• M37: 28,835,887 km (0.076 R)
• M38: 28,937,464 km (0.116 R)
• M39: 30,594,410 km (0.077 R)
• M40: 39,084,239 km (0.073 R)
• M41: 41,492,316 km (0.071 R)
• M42: 43,595,363 km (0.077 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 19,915 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit