🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.46 AU - 0.66 AU

Year: 275 Days

Day: 45.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,839,975 km

• M1: 97,687 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.8

Radius: 14.8

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.81 AU - 1.27 AU

Year: 696 Days

Day: 8.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,839,975 km

• M1: 184,005 km (0.101 R)
• M2: 679,773 km (0.105 R)
• M3: 1,181,225 km (0.112 R)
• M4: 2,374,717 km (0.042 R)
• M5: 2,851,784 km (0.115 R)
• M6: 3,806,368 km (0.062 R)
• M7: 5,015,418 km (0.074 R)
• M8: 6,230,303 km (0.117 R)
• M9: 7,044,414 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.1

Radius: 8.7

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.89 AU - 1.45 AU

Year: 830 Days

Day: 7 Hours

Environment

Temp: -163 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,839,975 km

• M1: 110,104 km (0.062 R)
• M2: 421,417 km (0.063 R)
• M3: 769,980 km (0.066 R)
• M4: 1,258,268 km (0.112 R)
• M5: 1,644,529 km (0.038 R)
• M6: 1,951,055 km (0.111 R)
• M7: 2,225,568 km (0.061 R)
• M8: 2,749,160 km (0.096 R)
• M9: 3,108,943 km (0.053 R)
• M10: 3,835,989 km (0.074 R)
• M11: 4,270,870 km (0.108 R)
• M12: 4,671,942 km (0.107 R)
• M13: 5,347,675 km (0.077 R)
• M14: 6,047,494 km (0.107 R)
• M15: 6,327,691 km (0.111 R)
• M16: 7,176,659 km (0.12 R)
• M17: 7,674,820 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.5

Radius: 10.8

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.19 AU - 1.67 AU

Year: 1122 Days

Day: 14.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,839,975 km

• M1: 134,638 km (0.104 R)
• M2: 562,488 km (0.119 R)
• M3: 1,587,383 km (0.099 R)
• M4: 2,252,346 km (0.042 R)
• M5: 2,860,012 km (0.117 R)
• M6: 3,196,757 km (0.102 R)
• M7: 5,190,897 km (0.091 R)
• M8: 5,561,600 km (0.052 R)
• M9: 6,760,029 km (0.105 R)
• M10: 8,172,083 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.6

Radius: 8.1

Gravity: 13.85 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.31 AU - 3.65 AU

Year: 4259 Days

Day: 11 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 38,839,975 km

• M1: 100,979 km (0.058 R)
• M2: 375,939 km (0.11 R)
• M3: 641,176 km (0.094 R)
• M4: 919,129 km (0.114 R)
• M5: 1,452,595 km (0.118 R)
• M6: 1,796,222 km (0.061 R)
• M7: 2,074,474 km (0.029 R)
• M8: 2,701,289 km (0.092 R)
• M9: 2,955,007 km (0.065 R)
• M10: 3,972,721 km (0.087 R)
• M11: 4,883,772 km (0.117 R)
• M12: 5,235,028 km (0.083 R)
• M13: 5,631,911 km (0.113 R)
• M14: 8,184,948 km (0.057 R)
• M15: 8,956,724 km (0.113 R)
• M16: 11,006,364 km (0.056 R)
• M17: 11,563,915 km (0.098 R)
• M18: 15,085,449 km (0.068 R)
• M19: 16,482,095 km (0.07 R)
• M20: 19,064,304 km (0.109 R)
• M21: 19,868,243 km (0.075 R)
• M22: 20,209,924 km (0.119 R)
• M23: 21,976,974 km (0.081 R)
• M24: 25,573,756 km (0.04 R)
• M25: 27,132,865 km (0.038 R)
• M26: 27,808,000 km (0.109 R)
• M27: 29,191,631 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.5

Radius: 14.4

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.18 AU - 4.4 AU

Year: 4840 Days

Day: 11 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,839,975 km

• M1: 179,218 km (0.073 R)
• M2: 686,205 km (0.063 R)
• M3: 1,275,322 km (0.099 R)
• M4: 1,986,061 km (0.118 R)
• M5: 3,121,509 km (0.108 R)
• M6: 3,692,075 km (0.076 R)
• M7: 4,165,403 km (0.076 R)
• M8: 4,679,571 km (0.072 R)
• M9: 5,895,951 km (0.105 R)
• M10: 7,488,570 km (0.104 R)
• M11: 9,352,560 km (0.053 R)
• M12: 11,321,567 km (0.059 R)
• M13: 12,931,988 km (0.077 R)
• M14: 14,914,160 km (0.097 R)
• M15: 16,423,303 km (0.11 R)
• M16: 19,272,694 km (0.09 R)
• M17: 20,990,825 km (0.049 R)
• M18: 22,511,338 km (0.108 R)
• M19: 27,598,114 km (0.109 R)
• M20: 28,717,705 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.7

Radius: 11.9

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.93 AU - 5.83 AU

Year: 7072 Days

Day: 10.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,839,975 km

• M1: 148,999 km (0.04 R)
• M2: 828,024 km (0.108 R)
• M3: 1,551,180 km (0.066 R)
• M4: 2,287,950 km (0.108 R)
• M5: 3,399,163 km (0.095 R)
• M6: 4,617,039 km (0.087 R)
• M7: 5,494,730 km (0.093 R)
• M8: 6,411,466 km (0.117 R)
• M9: 7,015,991 km (0.049 R)
• M10: 8,589,311 km (0.097 R)
• M11: 10,530,493 km (0.065 R)
• M12: 11,170,922 km (0.115 R)
• M13: 12,638,926 km (0.115 R)
• M14: 14,953,803 km (0.104 R)
• M15: 16,799,841 km (0.119 R)
• M16: 18,019,363 km (0.095 R)
• M17: 18,509,296 km (0.114 R)
• M18: 19,297,228 km (0.07 R)
• M19: 19,958,301 km (0.111 R)
• M20: 30,473,834 km (0.103 R)
• M21: 30,969,901 km (0.068 R)
• M22: 32,490,563 km (0.101 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 11,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit