🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142

Radius: 11.1

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.63 AU - 0.77 AU

Year: 404 Days

Day: 8.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,159,090 km

• M1: 138,228 km (0.068 R)
• M2: 505,790 km (0.055 R)
• M3: 993,629 km (0.1 R)
• M4: 1,511,238 km (0.067 R)
• M5: 2,419,297 km (0.058 R)
• M6: 2,972,210 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.3

Radius: 11

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.73 AU - 1.01 AU

Year: 560 Days

Day: 9.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,159,090 km

• M1: 136,882 km (0.088 R)
• M2: 525,089 km (0.067 R)
• M3: 1,116,000 km (0.083 R)
• M4: 1,762,562 km (0.08 R)
• M5: 3,008,712 km (0.052 R)
• M6: 3,477,552 km (0.115 R)
• M7: 3,838,382 km (0.118 R)
• M8: 4,363,171 km (0.047 R)
• M9: 5,279,907 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.5

Radius: 14.6

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.78 AU - 1.2 AU

Year: 680 Days

Day: 9 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,159,090 km

• M1: 181,612 km (0.055 R)
• M2: 645,814 km (0.08 R)
• M3: 1,477,279 km (0.075 R)
• M4: 2,054,428 km (0.112 R)
• M5: 2,906,687 km (0.106 R)
• M6: 3,385,549 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.3

Radius: 12.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.97 AU - 1.97 AU

Year: 1909 Days

Day: 5.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,159,090 km

• M1: 155,432 km (0.118 R)
• M2: 556,654 km (0.094 R)
• M3: 1,277,416 km (0.106 R)
• M4: 1,920,089 km (0.064 R)
• M5: 3,231,164 km (0.046 R)
• M6: 4,602,678 km (0.059 R)
• M7: 7,290,203 km (0.118 R)
• M8: 9,011,477 km (0.077 R)
• M9: 12,007,922 km (0.114 R)
• M10: 12,633,540 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.4

Radius: 11.4

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.22 AU - 3.04 AU

Year: 2944 Days

Day: 11.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,159,090 km

• M1: 143,165 km (0.058 R)
• M2: 651,948 km (0.081 R)
• M3: 1,082,191 km (0.109 R)
• M4: 1,657,844 km (0.1 R)
• M5: 2,852,383 km (0.098 R)
• M6: 6,083,248 km (0.116 R)
• M7: 7,744,981 km (0.088 R)
• M8: 8,099,678 km (0.11 R)
• M9: 11,516,343 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.2

Radius: 13.6

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.86 AU - 4.92 AU

Year: 7464 Days

Day: 14.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,159,090 km

• M1: 169,195 km (0.098 R)
• M2: 665,112 km (0.095 R)
• M3: 1,445,863 km (0.102 R)
• M4: 2,262,369 km (0.109 R)
• M5: 4,838,594 km (0.115 R)
• M6: 6,590,684 km (0.092 R)
• M7: 7,876,627 km (0.114 R)
• M8: 9,139,532 km (0.061 R)
• M9: 11,360,612 km (0.059 R)
• M10: 12,064,470 km (0.066 R)
• M11: 14,727,462 km (0.08 R)
• M12: 17,193,582 km (0.1 R)
• M13: 17,689,350 km (0.084 R)
• M14: 19,846,102 km (0.086 R)
• M15: 22,256,274 km (0.118 R)
• M16: 24,231,863 km (0.12 R)
• M17: 25,673,388 km (0.085 R)
• M18: 31,066,242 km (0.041 R)
• M19: 31,908,777 km (0.103 R)
• M20: 32,874,880 km (0.095 R)
• M21: 33,529,670 km (0.039 R)
• M22: 34,528,236 km (0.095 R)
• M23: 36,818,130 km (0.065 R)
• M24: 42,853,357 km (0.072 R)
• M25: 44,293,536 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.7

Radius: 4.3

Gravity: 32.87 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 5.03 AU - 6.21 AU

Year: 9196 Days

Day: 20.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,159,090 km

• M1: 54,603 km (0.065 R)
• M2: 256,112 km (0.07 R)
• M3: 401,521 km (0.086 R)
• M4: 603,777 km (0.04 R)
• M5: 900,280 km (0.068 R)
• M6: 1,452,446 km (0.078 R)
• M7: 1,824,346 km (0.043 R)
• M8: 3,051,647 km (0.11 R)
• M9: 3,440,302 km (0.083 R)
• M10: 3,784,527 km (0.086 R)
• M11: 4,097,486 km (0.09 R)
• M12: 4,343,275 km (0.074 R)
• M13: 5,077,950 km (0.067 R)
• M14: 5,523,901 km (0.109 R)
• M15: 8,025,178 km (0.119 R)
• M16: 8,629,404 km (0.077 R)
• M17: 8,852,304 km (0.085 R)
• M18: 8,987,840 km (0.113 R)
• M19: 9,544,195 km (0.117 R)
• M20: 9,782,654 km (0.065 R)
• M21: 10,623,244 km (0.069 R)
• M22: 10,879,356 km (0.086 R)
• M23: 13,020,400 km (0.057 R)
• M24: 14,594,319 km (0.118 R)
• M25: 15,623,403 km (0.105 R)
• M26: 17,968,948 km (0.096 R)
• M27: 18,849,930 km (0.066 R)
• M28: 20,146,644 km (0.082 R)
• M29: 22,243,109 km (0.078 R)
• M30: 23,001,421 km (0.111 R)
• M31: 24,747,976 km (0.068 R)
• M32: 25,837,347 km (0.096 R)
• M33: 26,021,951 km (0.065 R)
• M34: 28,111,085 km (0.058 R)
• M35: 31,766,509 km (0.096 R)
• M36: 32,943,545 km (0.113 R)
• M37: 42,008,129 km (0.096 R)
• M38: 42,648,408 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.5

Radius: 4.7

Gravity: 27.23 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.1 AU - 8.96 AU

Year: 14263 Days

Day: 18.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 174.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,159,090 km

• M1: 58,792 km (0.078 R)
• M2: 231,877 km (0.091 R)
• M3: 386,112 km (0.052 R)
• M4: 604,226 km (0.079 R)
• M5: 1,202,019 km (0.081 R)
• M6: 1,403,378 km (0.086 R)
• M7: 1,962,275 km (0.119 R)
• M8: 2,444,280 km (0.115 R)
• M9: 2,746,617 km (0.102 R)
• M10: 4,062,779 km (0.044 R)
• M11: 6,810,593 km (0.109 R)
• M12: 7,321,021 km (0.059 R)
• M13: 7,541,079 km (0.11 R)
• M14: 7,948,284 km (0.118 R)
• M15: 10,207,362 km (0.053 R)
• M16: 10,426,672 km (0.115 R)
• M17: 12,235,460 km (0.116 R)
• M18: 12,924,508 km (0.092 R)
• M19: 13,441,668 km (0.108 R)
• M20: 13,771,830 km (0.119 R)
• M21: 14,934,954 km (0.115 R)
• M22: 16,162,105 km (0.064 R)
• M23: 16,535,352 km (0.119 R)
• M24: 16,686,296 km (0.119 R)
• M25: 18,327,086 km (0.12 R)
• M26: 22,846,886 km (0.108 R)
• M27: 27,630,278 km (0.074 R)
• M28: 28,056,632 km (0.12 R)
• M29: 29,251,620 km (0.091 R)
• M30: 32,564,315 km (0.112 R)
• M31: 36,885,001 km (0.114 R)
• M32: 40,879,713 km (0.085 R)
• M33: 43,985,963 km (0.086 R)
• M34: 47,094,307 km (0.11 R)
• M35: 47,855,312 km (0.076 R)
• M36: 54,408,147 km (0.103 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: 460 - 15,148 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit