🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.51 AU - 0.67 AU

Year: 293 Days

Day: 13.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.2

Radius: 9.2

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.76 AU - 0.88 AU

Year: 479 Days

Day: 10.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,630,170 km

• M1: 114,442 km (0.085 R)
• M2: 432,637 km (0.025 R)
• M3: 1,218,175 km (0.052 R)
• M4: 1,740,422 km (0.058 R)
• M5: 2,028,846 km (0.093 R)
• M6: 2,875,869 km (0.099 R)
• M7: 3,232,361 km (0.085 R)
• M8: 3,596,482 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.5

Radius: 14.3

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.78 AU - 0.96 AU

Year: 524 Days

Day: 6 Hours

Environment

Temp: -153 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,630,170 km

• M1: 177,872 km (0.097 R)
• M2: 970,890 km (0.062 R)
• M3: 1,472,791 km (0.076 R)
• M4: 2,137,754 km (0.112 R)
• M5: 2,763,521 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.1

Radius: 9.4

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.38 AU - 2.44 AU

Year: 2416 Days

Day: 14.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,630,170 km

• M1: 122,221 km (0.046 R)
• M2: 1,041,351 km (0.102 R)
• M3: 1,376,300 km (0.091 R)
• M4: 1,986,809 km (0.071 R)
• M5: 2,570,839 km (0.1 R)
• M6: 3,016,342 km (0.104 R)
• M7: 3,788,865 km (0.116 R)
• M8: 4,853,404 km (0.076 R)
• M9: 5,495,927 km (0.117 R)
• M10: 5,869,622 km (0.066 R)
• M11: 7,362,609 km (0.079 R)
• M12: 8,562,234 km (0.039 R)
• M13: 9,295,413 km (0.114 R)
• M14: 10,254,485 km (0.075 R)
• M15: 10,726,167 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.8

Radius: 14.2

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.28 AU - 3.48 AU

Year: 3156 Days

Day: 8.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,630,170 km

• M1: 189,241 km (0.102 R)
• M2: 719,566 km (0.085 R)
• M3: 1,350,719 km (0.055 R)
• M4: 2,412,266 km (0.043 R)
• M5: 3,083,511 km (0.053 R)
• M6: 3,849,452 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.6

Radius: 9.3

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.05 AU - 5.19 AU

Year: 7480 Days

Day: 14.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,630,170 km

• M1: 121,025 km (0.106 R)
• M2: 740,659 km (0.113 R)
• M3: 1,343,987 km (0.085 R)
• M4: 2,075,521 km (0.11 R)
• M5: 2,804,062 km (0.104 R)
• M6: 4,080,880 km (0.117 R)
• M7: 4,911,148 km (0.039 R)
• M8: 9,035,562 km (0.106 R)
• M9: 9,700,375 km (0.067 R)
• M10: 11,393,075 km (0.088 R)
• M11: 18,431,954 km (0.106 R)
• M12: 20,477,106 km (0.12 R)
• M13: 20,876,832 km (0.08 R)
• M14: 23,385,139 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.7

Radius: 13.9

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.7 AU - 6.4 AU

Year: 8442 Days

Day: 7.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 61,630,170 km

• M1: 173,534 km (0.118 R)
• M2: 643,720 km (0.042 R)
• M3: 1,326,784 km (0.069 R)
• M4: 2,176,799 km (0.082 R)
• M5: 2,619,908 km (0.09 R)
• M6: 3,124,052 km (0.05 R)
• M7: 4,224,195 km (0.066 R)
• M8: 6,235,090 km (0.118 R)
• M9: 6,769,752 km (0.117 R)
• M10: 8,304,776 km (0.116 R)
• M11: 8,777,057 km (0.089 R)
• M12: 9,542,549 km (0.108 R)
• M13: 11,155,214 km (0.094 R)
• M14: 12,108,152 km (0.089 R)
• M15: 14,542,708 km (0.036 R)
• M16: 15,041,019 km (0.053 R)
• M17: 15,679,951 km (0.117 R)
• M18: 16,739,852 km (0.092 R)
• M19: 17,287,530 km (0.099 R)
• M20: 18,491,045 km (0.082 R)
• M21: 23,019,522 km (0.105 R)
• M22: 23,697,200 km (0.108 R)
• M23: 28,046,758 km (0.08 R)
• M24: 33,115,733 km (0.105 R)
• M25: 38,883,778 km (0.098 R)
• M26: 40,577,076 km (0.087 R)
• M27: 41,691,281 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.7

Radius: 4.7

Gravity: 13.97 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 10.18 AU - 10.66 AU

Year: 21718 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 61,630,170 km

• M1: 58,493 km (0.079 R)
• M2: 242,349 km (0.112 R)
• M3: 429,645 km (0.096 R)
• M4: 588,967 km (0.082 R)
• M5: 1,055,563 km (0.033 R)
• M6: 1,381,387 km (0.073 R)
• M7: 1,704,369 km (0.102 R)
• M8: 1,910,514 km (0.112 R)
• M9: 2,075,970 km (0.077 R)
• M10: 2,373,221 km (0.104 R)
• M11: 2,675,708 km (0.119 R)
• M12: 2,883,499 km (0.086 R)
• M13: 3,739,049 km (0.094 R)
• M14: 7,346,751 km (0.074 R)
• M15: 9,121,730 km (0.12 R)
• M16: 10,527,651 km (0.044 R)
• M17: 10,755,937 km (0.089 R)
• M18: 13,760,910 km (0.102 R)
• M19: 15,308,051 km (0.102 R)
• M20: 16,199,056 km (0.049 R)
• M21: 17,840,593 km (0.11 R)
• M22: 18,247,200 km (0.112 R)
• M23: 20,817,591 km (0.092 R)
• M24: 23,328,442 km (0.06 R)
• M25: 25,313,456 km (0.055 R)
• M26: 30,071,117 km (0.069 R)
• M27: 40,603,555 km (0.119 R)
• M28: 45,545,371 km (0.094 R)
• M29: 47,071,718 km (0.104 R)
• M30: 48,474,198 km (0.085 R)
• M31: 49,424,444 km (0.076 R)
• M32: 50,064,872 km (0.091 R)
• M33: 54,533,211 km (0.116 R)
• M34: 55,906,370 km (0.06 R)
• M35: 56,079,604 km (0.05 R)
• M36: 58,364,712 km (0.069 R)
• M37: 59,080,238 km (0.105 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 496 - 17,019 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit