🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.49 AU - 0.55 AU

Year: 246 Days

Day: 14.7 Hours

Environment

Temp: -112 °C

Axial Tilt: 43.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.9

Radius: 13.6

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.67 AU - 0.69 AU

Year: 368 Days

Day: 13.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 44,685,374 km

• M1: 169,345 km (0.086 R)
• M2: 1,015,321 km (0.101 R)
• M3: 2,180,090 km (0.082 R)
• M4: 3,521,534 km (0.096 R)
• M5: 3,969,729 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.8

Radius: 10.2

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.81 AU - 0.91 AU

Year: 523 Days

Day: 12.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,685,374 km

• M1: 126,859 km (0.102 R)
• M2: 448,644 km (0.115 R)
• M3: 810,222 km (0.086 R)
• M4: 2,223,922 km (0.093 R)
• M5: 2,756,042 km (0.119 R)
• M6: 3,621,764 km (0.098 R)
• M7: 3,979,453 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.3

Radius: 12.2

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.01 AU - 1.33 AU

Year: 830 Days

Day: 6.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,685,374 km

• M1: 151,991 km (0.098 R)
• M2: 1,112,709 km (0.102 R)
• M3: 1,511,537 km (0.065 R)
• M4: 1,934,300 km (0.077 R)
• M5: 2,855,075 km (0.098 R)
• M6: 3,987,531 km (0.084 R)
• M7: 4,965,453 km (0.073 R)
• M8: 5,511,335 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.5

Radius: 8.5

Gravity: 11.04 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.9 AU - 1.48 AU

Year: 852 Days

Day: 13.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,685,374 km

• M1: 105,766 km (0.089 R)
• M2: 548,725 km (0.056 R)
• M3: 956,529 km (0.09 R)
• M4: 1,220,868 km (0.107 R)
• M5: 1,711,998 km (0.11 R)
• M6: 2,160,044 km (0.066 R)
• M7: 2,554,533 km (0.098 R)
• M8: 2,843,706 km (0.101 R)
• M9: 3,374,928 km (0.116 R)
• M10: 3,830,753 km (0.091 R)
• M11: 4,445,002 km (0.086 R)
• M12: 5,104,728 km (0.111 R)
• M13: 5,807,689 km (0.093 R)
• M14: 6,707,520 km (0.086 R)
• M15: 7,285,715 km (0.057 R)
• M16: 8,567,769 km (0.068 R)
• M17: 9,248,290 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.9

Radius: 13.1

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.21 AU - 1.25 AU

Year: 895 Days

Day: 5.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,685,374 km

• M1: 163,062 km (0.086 R)
• M2: 729,888 km (0.116 R)
• M3: 1,170,005 km (0.046 R)
• M4: 1,589,477 km (0.083 R)
• M5: 1,998,777 km (0.112 R)
• M6: 2,529,700 km (0.095 R)
• M7: 3,154,271 km (0.053 R)
• M8: 3,639,567 km (0.11 R)
• M9: 4,117,233 km (0.117 R)
• M10: 5,577,607 km (0.059 R)
• M11: 6,523,365 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.1

Radius: 13.9

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.01 AU - 2.15 AU

Year: 1968 Days

Day: 7.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,685,374 km

• M1: 173,234 km (0.083 R)
• M2: 629,657 km (0.036 R)
• M3: 1,202,019 km (0.078 R)
• M4: 1,854,864 km (0.119 R)
• M5: 2,290,942 km (0.104 R)
• M6: 3,051,797 km (0.089 R)
• M7: 3,915,874 km (0.109 R)
• M8: 6,783,815 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.5

Radius: 14.6

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.1 AU - 2.46 AU

Year: 2258 Days

Day: 6.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,685,374 km

• M1: 181,612 km (0.109 R)
• M2: 669,002 km (0.08 R)
• M3: 1,250,788 km (0.117 R)
• M4: 1,733,989 km (0.081 R)
• M5: 2,525,362 km (0.106 R)
• M6: 3,398,564 km (0.103 R)
• M7: 4,250,823 km (0.109 R)
• M8: 5,241,760 km (0.109 R)
• M9: 6,407,277 km (0.11 R)
• M10: 7,174,714 km (0.062 R)
• M11: 8,862,028 km (0.052 R)
• M12: 9,987,154 km (0.117 R)
• M13: 12,763,391 km (0.104 R)
• M14: 14,417,345 km (0.051 R)
• M15: 15,924,993 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.9

Radius: 8.5

Gravity: 9.31 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.34 AU - 2.92 AU

Year: 2798 Days

Day: 7.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,685,374 km

• M1: 106,364 km (0.117 R)
• M2: 470,336 km (0.03 R)
• M3: 909,705 km (0.108 R)
• M4: 1,452,745 km (0.042 R)
• M5: 1,965,866 km (0.108 R)
• M6: 2,520,724 km (0.073 R)
• M7: 2,843,407 km (0.082 R)
• M8: 3,388,242 km (0.04 R)
• M9: 3,860,971 km (0.092 R)
• M10: 4,355,692 km (0.052 R)
• M11: 5,248,940 km (0.086 R)
• M12: 5,909,116 km (0.11 R)
• M13: 6,509,901 km (0.119 R)
• M14: 7,001,629 km (0.088 R)
• M15: 7,994,211 km (0.053 R)
• M16: 8,389,598 km (0.092 R)
• M17: 8,694,778 km (0.118 R)
• M18: 10,449,112 km (0.065 R)
• M19: 10,842,405 km (0.096 R)
• M20: 11,164,040 km (0.034 R)
• M21: 11,658,461 km (0.119 R)
• M22: 12,958,616 km (0.082 R)
• M23: 15,895,971 km (0.092 R)
• M24: 16,521,888 km (0.085 R)
• M25: 17,109,957 km (0.105 R)
• M26: 17,767,440 km (0.105 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.3

Radius: 8.7

Gravity: 10.47 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5 AU - 5.92 AU

Year: 8369 Days

Day: 13 Hours

Environment

Temp: -215 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,685,374 km

• M1: 249,828 km (0.097 R)
• M2: 701,614 km (0.089 R)
• M3: 1,172,997 km (0.086 R)
• M4: 1,449,155 km (0.083 R)
• M5: 2,712,060 km (0.098 R)
• M6: 4,855,498 km (0.075 R)
• M7: 5,449,551 km (0.107 R)
• M8: 5,883,385 km (0.065 R)
• M9: 6,782,319 km (0.12 R)
• M10: 7,565,314 km (0.118 R)
• M11: 8,671,441 km (0.101 R)
• M12: 9,881,987 km (0.095 R)
• M13: 11,468,322 km (0.105 R)
• M14: 13,217,421 km (0.08 R)
• M15: 15,728,122 km (0.117 R)
• M16: 16,608,206 km (0.087 R)
• M17: 17,307,277 km (0.111 R)
• M18: 18,245,256 km (0.026 R)
• M19: 18,614,912 km (0.103 R)
• M20: 19,522,373 km (0.051 R)
• M21: 20,143,652 km (0.108 R)
• M22: 26,247,246 km (0.06 R)
• M23: 30,279,656 km (0.089 R)
• M24: 30,798,013 km (0.111 R)
• M25: 36,312,340 km (0.027 R)
• M26: 41,044,719 km (0.066 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: 520 - 12,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit