🌌 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 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.59 AU - 0.69 AU

Year: 331 Days

Day: 31.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.59 AU - 0.75 AU

Year: 354 Days

Day: 47.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.7

Radius: 14.3

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.87 AU - 1.07 AU

Year: 617 Days

Day: 5.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,934,536 km

• M1: 177,872 km (0.094 R)
• M2: 655,987 km (0.042 R)
• M3: 1,126,023 km (0.086 R)
• M4: 2,156,902 km (0.098 R)
• M5: 2,626,490 km (0.096 R)
• M6: 3,104,305 km (0.116 R)
• M7: 4,561,987 km (0.068 R)
• M8: 5,224,406 km (0.105 R)
• M9: 5,837,309 km (0.116 R)
• M10: 6,437,645 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.7

Radius: 10.9

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.36 AU - 4 AU

Year: 4558 Days

Day: 14.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,934,536 km

• M1: 135,536 km (0.099 R)
• M2: 580,440 km (0.095 R)
• M3: 952,190 km (0.06 R)
• M4: 1,606,382 km (0.083 R)
• M5: 2,130,124 km (0.062 R)
• M6: 2,557,226 km (0.097 R)
• M7: 3,738,002 km (0.07 R)
• M8: 5,390,909 km (0.103 R)
• M9: 6,475,045 km (0.083 R)
• M10: 7,205,830 km (0.098 R)
• M11: 8,289,966 km (0.068 R)
• M12: 8,635,537 km (0.114 R)
• M13: 13,050,170 km (0.062 R)
• M14: 15,048,947 km (0.065 R)
• M15: 15,391,227 km (0.038 R)
• M16: 16,210,425 km (0.076 R)
• M17: 21,675,684 km (0.075 R)
• M18: 24,860,174 km (0.108 R)
• M19: 25,580,937 km (0.109 R)
• M20: 27,401,842 km (0.104 R)
• M21: 28,084,906 km (0.061 R)
• M22: 28,779,190 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.8

Radius: 13.7

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.08 AU - 4.3 AU

Year: 4577 Days

Day: 6.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 73,934,536 km

• M1: 176,226 km (0.065 R)
• M2: 734,077 km (0.116 R)
• M3: 1,299,407 km (0.068 R)
• M4: 1,750,445 km (0.114 R)
• M5: 2,621,553 km (0.079 R)
• M6: 3,236,400 km (0.068 R)
• M7: 3,832,398 km (0.066 R)
• M8: 4,450,836 km (0.056 R)
• M9: 4,917,432 km (0.041 R)
• M10: 6,229,405 km (0.078 R)
• M11: 8,443,005 km (0.1 R)
• M12: 9,621,237 km (0.065 R)
• M13: 10,495,787 km (0.077 R)
• M14: 12,759,651 km (0.076 R)
• M15: 15,216,497 km (0.044 R)
• M16: 16,710,082 km (0.043 R)
• M17: 18,038,511 km (0.046 R)
• M18: 19,573,086 km (0.057 R)
• M19: 20,619,823 km (0.058 R)
• M20: 21,048,869 km (0.095 R)
• M21: 22,446,861 km (0.095 R)
• M22: 25,020,842 km (0.068 R)
• M23: 25,838,095 km (0.12 R)
• M24: 29,738,561 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.4

Radius: 9.1

Gravity: 10.97 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.4 AU - 4.24 AU

Year: 4821 Days

Day: 13.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 94.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 73,934,536 km

• M1: 116,537 km (0.107 R)
• M2: 806,333 km (0.054 R)
• M3: 1,190,350 km (0.104 R)
• M4: 1,631,066 km (0.119 R)
• M5: 2,162,587 km (0.104 R)
• M6: 3,527,518 km (0.067 R)
• M7: 4,026,427 km (0.115 R)
• M8: 5,221,863 km (0.116 R)
• M9: 5,599,000 km (0.059 R)
• M10: 5,994,387 km (0.051 R)
• M11: 6,539,372 km (0.117 R)
• M12: 7,047,406 km (0.117 R)
• M13: 7,436,361 km (0.118 R)
• M14: 8,932,788 km (0.066 R)
• M15: 12,105,460 km (0.111 R)
• M16: 12,767,729 km (0.093 R)
• M17: 13,346,823 km (0.082 R)
• M18: 13,724,408 km (0.065 R)
• M19: 16,508,574 km (0.069 R)
• M20: 18,627,927 km (0.115 R)
• M21: 18,964,223 km (0.044 R)
• M22: 20,778,247 km (0.064 R)
• M23: 21,653,394 km (0.117 R)
• M24: 22,175,042 km (0.109 R)
• M25: 22,858,106 km (0.111 R)
• M26: 24,266,271 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.2

Radius: 3.8

Gravity: 39.35 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 9.95 AU - 10.46 AU

Year: 21034 Days

Day: 21.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 147.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 73,934,536 km

• M1: 47,572 km (0.112 R)
• M2: 221,106 km (0.081 R)
• M3: 403,914 km (0.097 R)
• M4: 888,911 km (0.115 R)
• M5: 1,094,458 km (0.058 R)
• M6: 1,567,187 km (0.092 R)
• M7: 2,445,776 km (0.076 R)
• M8: 2,875,121 km (0.105 R)
• M9: 3,002,878 km (0.114 R)
• M10: 3,215,157 km (0.11 R)
• M11: 4,198,315 km (0.113 R)
• M12: 5,214,533 km (0.106 R)
• M13: 5,719,276 km (0.061 R)
• M14: 5,921,832 km (0.058 R)
• M15: 6,735,495 km (0.038 R)
• M16: 7,380,710 km (0.109 R)
• M17: 8,528,874 km (0.1 R)
• M18: 10,985,271 km (0.09 R)
• M19: 12,953,680 km (0.083 R)
• M20: 13,232,680 km (0.107 R)
• M21: 18,086,083 km (0.027 R)
• M22: 20,432,376 km (0.093 R)
• M23: 21,097,040 km (0.11 R)
• M24: 24,425,592 km (0.104 R)
• M25: 30,599,197 km (0.085 R)
• M26: 34,707,604 km (0.047 R)
• M27: 36,615,126 km (0.027 R)
• M28: 36,753,953 km (0.093 R)
• M29: 39,751,894 km (0.11 R)
• M30: 44,311,488 km (0.111 R)
• M31: 46,391,048 km (0.084 R)
• M32: 46,879,934 km (0.07 R)
• M33: 47,372,410 km (0.027 R)
• M34: 57,582,464 km (0.114 R)
• M35: 60,056,065 km (0.061 R)
• M36: 61,025,908 km (0.06 R)
• M37: 65,622,452 km (0.109 R)
• M38: 65,827,401 km (0.097 R)
• M39: 66,032,799 km (0.04 R)
• M40: 66,651,387 km (0.085 R)
• M41: 72,831,723 km (0.08 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: 319 - 15,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit