🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.59 AU - 0.73 AU

Year: 352 Days

Day: 45.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,405,623 km

• M1: 26,329 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334

Radius: 11

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.67 AU - 0.87 AU

Year: 443 Days

Day: 7.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,405,623 km

• M1: 136,732 km (0.116 R)
• M2: 566,228 km (0.047 R)
• M3: 942,616 km (0.116 R)
• M4: 1,420,282 km (0.096 R)
• M5: 1,899,893 km (0.115 R)
• M6: 2,503,670 km (0.071 R)
• M7: 2,885,593 km (0.118 R)
• M8: 3,338,875 km (0.057 R)
• M9: 4,260,099 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113

Radius: 8.3

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.09 AU - 1.61 AU

Year: 1029 Days

Day: 11.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,405,623 km

• M1: 103,223 km (0.106 R)
• M2: 496,815 km (0.098 R)
• M3: 790,774 km (0.104 R)
• M4: 1,480,720 km (0.043 R)
• M5: 2,263,715 km (0.081 R)
• M6: 3,217,701 km (0.077 R)
• M7: 4,222,400 km (0.087 R)
• M8: 5,213,785 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.6

Radius: 8.7

Gravity: 9.2 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.48 AU - 1.72 AU

Year: 1328 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,405,623 km

• M1: 108,309 km (0.058 R)
• M2: 427,401 km (0.099 R)
• M3: 717,920 km (0.068 R)
• M4: 1,174,792 km (0.078 R)
• M5: 1,535,772 km (0.047 R)
• M6: 1,949,260 km (0.111 R)
• M7: 2,741,082 km (0.067 R)
• M8: 3,086,503 km (0.108 R)
• M9: 3,460,947 km (0.077 R)
• M10: 3,732,616 km (0.086 R)
• M11: 4,596,993 km (0.11 R)
• M12: 5,481,715 km (0.095 R)
• M13: 6,239,877 km (0.06 R)
• M14: 6,523,514 km (0.111 R)
• M15: 8,185,247 km (0.068 R)
• M16: 9,729,247 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.2

Radius: 11.4

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.5 AU - 2.5 AU

Year: 2593 Days

Day: 5.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,405,623 km

• M1: 141,968 km (0.116 R)
• M2: 577,747 km (0.059 R)
• M3: 1,329,327 km (0.114 R)
• M4: 1,846,786 km (0.065 R)
• M5: 2,224,820 km (0.04 R)
• M6: 3,414,272 km (0.107 R)
• M7: 3,816,840 km (0.105 R)
• M8: 4,251,123 km (0.09 R)
• M9: 5,290,678 km (0.105 R)
• M10: 8,024,579 km (0.08 R)
• M11: 11,587,103 km (0.058 R)
• M12: 14,103,040 km (0.108 R)
• M13: 15,000,926 km (0.091 R)
• M14: 16,702,303 km (0.07 R)
• M15: 17,226,344 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.7

Radius: 12

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.16 AU - 4.72 AU

Year: 5130 Days

Day: 7.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,405,623 km

• M1: 149,299 km (0.078 R)
• M2: 530,474 km (0.092 R)
• M3: 1,111,961 km (0.079 R)
• M4: 1,565,392 km (0.111 R)
• M5: 1,939,985 km (0.038 R)
• M6: 3,854,389 km (0.074 R)
• M7: 4,694,381 km (0.093 R)
• M8: 5,068,077 km (0.119 R)
• M9: 5,570,127 km (0.101 R)
• M10: 5,989,899 km (0.079 R)
• M11: 6,491,052 km (0.113 R)
• M12: 7,084,207 km (0.063 R)
• M13: 7,611,540 km (0.074 R)
• M14: 9,083,433 km (0.111 R)
• M15: 9,548,084 km (0.096 R)
• M16: 11,345,203 km (0.076 R)
• M17: 11,884,653 km (0.11 R)
• M18: 14,112,914 km (0.099 R)
• M19: 14,949,465 km (0.045 R)
• M20: 22,451,349 km (0.042 R)
• M21: 23,087,739 km (0.084 R)
• M22: 24,322,819 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.7

Radius: 3.2

Gravity: 14.91 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.37 AU - 6.73 AU

Year: 9762 Days

Day: 17.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,405,623 km

• M1: 39,793 km (0.067 R)
• M2: 282,291 km (0.087 R)
• M3: 420,071 km (0.117 R)
• M4: 524,640 km (0.063 R)
• M5: 826,528 km (0.102 R)
• M6: 1,162,375 km (0.079 R)
• M7: 1,993,840 km (0.072 R)
• M8: 2,125,786 km (0.119 R)
• M9: 2,310,539 km (0.044 R)
• M10: 2,625,143 km (0.108 R)
• M11: 3,918,267 km (0.095 R)
• M12: 5,469,448 km (0.064 R)
• M13: 5,875,905 km (0.075 R)
• M14: 6,270,844 km (0.079 R)
• M15: 12,676,624 km (0.09 R)
• M16: 13,129,756 km (0.086 R)
• M17: 14,662,985 km (0.113 R)
• M18: 14,883,492 km (0.098 R)
• M19: 18,206,210 km (0.09 R)
• M20: 18,460,826 km (0.04 R)
• M21: 22,791,385 km (0.08 R)
• M22: 26,187,406 km (0.112 R)
• M23: 26,349,271 km (0.052 R)
• M24: 26,511,884 km (0.115 R)
• M25: 28,089,693 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.8

Radius: 3.1

Gravity: 32.24 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.68 AU - 7.46 AU

Year: 11047 Days

Day: 17.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 47,405,623 km

• M1: 45,029 km (0.12 R)
• M2: 190,588 km (0.079 R)
• M3: 367,113 km (0.12 R)
• M4: 837,748 km (0.089 R)
• M5: 1,016,518 km (0.087 R)
• M6: 1,120,488 km (0.114 R)
• M7: 1,694,046 km (0.086 R)
• M8: 2,028,248 km (0.104 R)
• M9: 2,552,439 km (0.113 R)
• M10: 3,570,452 km (0.095 R)
• M11: 4,745,244 km (0.067 R)
• M12: 5,593,614 km (0.119 R)
• M13: 10,975,996 km (0.074 R)
• M14: 14,945,575 km (0.111 R)
• M15: 15,763,128 km (0.119 R)
• M16: 16,215,362 km (0.088 R)
• M17: 17,971,342 km (0.08 R)
• M18: 20,529,615 km (0.064 R)
• M19: 20,836,590 km (0.062 R)
• M20: 24,161,702 km (0.12 R)
• M21: 25,815,656 km (0.106 R)
• M22: 27,543,810 km (0.112 R)
• M23: 33,082,522 km (0.093 R)
• M24: 34,899,986 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 163.1

Radius: 4.2

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9.04 AU - 10.58 AU

Year: 20156 Days

Day: 21.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,405,623 km

• M1: 82,279 km (0.118 R)
• M2: 342,430 km (0.091 R)
• M3: 1,255,575 km (0.109 R)
• M4: 1,618,499 km (0.093 R)
• M5: 5,454,488 km (0.056 R)
• M6: 5,657,492 km (0.117 R)
• M7: 6,943,585 km (0.04 R)
• M8: 8,457,665 km (0.094 R)
• M9: 9,728,200 km (0.117 R)
• M10: 10,906,582 km (0.089 R)
• M11: 12,062,824 km (0.12 R)
• M12: 14,230,647 km (0.049 R)
• M13: 25,311,062 km (0.11 R)
• M14: 27,521,670 km (0.045 R)
• M15: 29,338,835 km (0.086 R)
• M16: 35,618,804 km (0.068 R)
• M17: 44,484,572 km (0.108 R)
• M18: 45,031,353 km (0.057 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 218 - 12,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit