🌌 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: 282.8

Radius: 8.8

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.64 AU - 0.76 AU

Year: 397 Days

Day: 12.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,609,481 km

• M1: 109,506 km (0.085 R)
• M2: 465,997 km (0.097 R)
• M3: 742,903 km (0.03 R)
• M4: 1,082,939 km (0.08 R)
• M5: 1,479,373 km (0.09 R)
• M6: 2,029,295 km (0.092 R)
• M7: 2,315,775 km (0.113 R)
• M8: 2,629,332 km (0.102 R)
• M9: 2,923,292 km (0.071 R)
• M10: 3,332,293 km (0.071 R)
• M11: 3,644,354 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823

Radius: 14.5

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.92 AU - 1.24 AU

Year: 761 Days

Day: 8.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,609,481 km

• M1: 183,706 km (0.117 R)
• M2: 645,964 km (0.06 R)
• M3: 1,235,978 km (0.108 R)
• M4: 1,730,847 km (0.116 R)
• M5: 2,226,914 km (0.109 R)
• M6: 2,748,113 km (0.07 R)
• M7: 4,011,168 km (0.115 R)
• M8: 4,688,696 km (0.077 R)
• M9: 5,236,823 km (0.108 R)
• M10: 6,677,750 km (0.074 R)
• M11: 7,235,600 km (0.037 R)
• M12: 7,800,482 km (0.061 R)
• M13: 8,651,095 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.2

Radius: 11.8

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.47 AU - 1.67 AU

Year: 1334 Days

Day: 12.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,609,481 km

• M1: 146,756 km (0.071 R)
• M2: 534,364 km (0.113 R)
• M3: 932,144 km (0.055 R)
• M4: 1,376,151 km (0.101 R)
• M5: 2,417,202 km (0.088 R)
• M6: 2,817,676 km (0.068 R)
• M7: 3,293,098 km (0.118 R)
• M8: 3,923,952 km (0.1 R)
• M9: 5,449,102 km (0.098 R)
• M10: 5,914,053 km (0.038 R)
• M11: 6,798,176 km (0.111 R)
• M12: 7,417,212 km (0.051 R)
• M13: 7,933,773 km (0.036 R)
• M14: 8,416,227 km (0.072 R)
• M15: 11,163,891 km (0.067 R)
• M16: 11,625,849 km (0.084 R)
• M17: 12,856,142 km (0.078 R)
• M18: 13,245,545 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.2

Radius: 13.7

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.91 AU - 2.43 AU

Year: 2168 Days

Day: 12.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,609,481 km

• M1: 170,392 km (0.052 R)
• M2: 852,708 km (0.118 R)
• M3: 1,543,551 km (0.11 R)
• M4: 2,326,995 km (0.117 R)
• M5: 3,597,380 km (0.106 R)
• M6: 4,438,569 km (0.075 R)
• M7: 5,057,006 km (0.047 R)
• M8: 5,794,823 km (0.094 R)
• M9: 6,222,972 km (0.104 R)
• M10: 7,288,707 km (0.074 R)
• M11: 7,763,232 km (0.054 R)
• M12: 8,365,064 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.9

Radius: 15

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.92 AU - 5.58 AU

Year: 7022 Days

Day: 9.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,609,481 km

• M1: 187,446 km (0.101 R)
• M2: 856,448 km (0.045 R)
• M3: 3,110,289 km (0.048 R)
• M4: 3,644,803 km (0.111 R)
• M5: 4,311,111 km (0.098 R)
• M6: 5,977,632 km (0.028 R)
• M7: 7,581,171 km (0.064 R)
• M8: 9,741,813 km (0.105 R)
• M9: 10,764,764 km (0.114 R)
• M10: 19,107,837 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.3

Radius: 8.8

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.29 AU - 5.33 AU

Year: 7155 Days

Day: 12.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 51.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,609,481 km

• M1: 126,410 km (0.118 R)
• M2: 407,804 km (0.059 R)
• M3: 875,447 km (0.11 R)
• M4: 1,516,623 km (0.053 R)
• M5: 2,552,140 km (0.111 R)
• M6: 2,944,385 km (0.1 R)
• M7: 3,421,902 km (0.109 R)
• M8: 4,026,427 km (0.045 R)
• M9: 4,559,893 km (0.096 R)
• M10: 5,965,963 km (0.106 R)
• M11: 6,481,477 km (0.099 R)
• M12: 6,989,063 km (0.093 R)
• M13: 7,329,248 km (0.119 R)
• M14: 9,793,425 km (0.098 R)
• M15: 10,609,331 km (0.045 R)
• M16: 11,161,048 km (0.061 R)
• M17: 11,997,450 km (0.028 R)
• M18: 13,044,186 km (0.096 R)
• M19: 13,971,843 km (0.049 R)
• M20: 15,828,951 km (0.103 R)
• M21: 16,816,596 km (0.088 R)
• M22: 19,725,377 km (0.059 R)
• M23: 20,253,457 km (0.112 R)
• M24: 24,736,307 km (0.042 R)
• M25: 26,518,018 km (0.056 R)
• M26: 28,383,653 km (0.119 R)
• M27: 28,960,053 km (0.055 R)
• M28: 30,535,169 km (0.101 R)
• M29: 34,070,466 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429.8

Radius: 5.5

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 7.48 AU - 12.04 AU

Year: 20681 Days

Day: 18.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,609,481 km

• M1: 69,264 km (0.106 R)
• M2: 262,993 km (0.063 R)
• M3: 1,265,149 km (0.088 R)
• M4: 1,759,421 km (0.109 R)
• M5: 2,031,539 km (0.053 R)
• M6: 2,730,161 km (0.101 R)
• M7: 3,198,851 km (0.082 R)
• M8: 3,633,882 km (0.089 R)
• M9: 4,423,609 km (0.114 R)
• M10: 6,672,813 km (0.113 R)
• M11: 12,326,565 km (0.09 R)
• M12: 18,006,946 km (0.049 R)
• M13: 19,198,643 km (0.099 R)
• M14: 27,032,485 km (0.097 R)
• M15: 28,365,551 km (0.077 R)
• M16: 29,858,688 km (0.066 R)
• M17: 42,540,099 km (0.093 R)
• M18: 43,584,442 km (0.076 R)
• M19: 56,759,527 km (0.111 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 11,547 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit