🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.53 AU - 0.67 AU

Year: 300 Days

Day: 44.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.8

Radius: 10.6

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.69 AU - 0.89 AU

Year: 453 Days

Day: 12.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,110,682 km

• M1: 131,796 km (0.062 R)
• M2: 557,551 km (0.102 R)
• M3: 940,522 km (0.1 R)
• M4: 1,283,849 km (0.099 R)
• M5: 1,656,946 km (0.053 R)
• M6: 2,021,815 km (0.12 R)
• M7: 2,477,490 km (0.102 R)
• M8: 2,886,491 km (0.083 R)
• M9: 3,432,374 km (0.072 R)
• M10: 4,071,904 km (0.091 R)
• M11: 4,517,856 km (0.12 R)
• M12: 4,906,661 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.5

Radius: 14.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.67 AU - 0.97 AU

Year: 479 Days

Day: 6.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,110,682 km

• M1: 175,478 km (0.047 R)
• M2: 725,849 km (0.096 R)
• M3: 1,167,911 km (0.087 R)
• M4: 1,606,980 km (0.089 R)
• M5: 2,334,624 km (0.078 R)
• M6: 2,957,700 km (0.042 R)
• M7: 3,583,019 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.9

Radius: 8.7

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.63 AU - 1.01 AU

Year: 479 Days

Day: 11.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,110,682 km

• M1: 108,159 km (0.073 R)
• M2: 411,693 km (0.042 R)
• M3: 710,590 km (0.09 R)
• M4: 1,187,957 km (0.092 R)
• M5: 1,545,346 km (0.118 R)
• M6: 1,822,850 km (0.061 R)
• M7: 2,141,045 km (0.099 R)
• M8: 2,846,997 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.5

Radius: 9.8

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.86 AU - 0.9 AU

Year: 533 Days

Day: 10.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,110,682 km

• M1: 122,072 km (0.05 R)
• M2: 489,634 km (0.057 R)
• M3: 827,875 km (0.089 R)
• M4: 1,285,345 km (0.108 R)
• M5: 1,660,985 km (0.041 R)
• M6: 2,201,183 km (0.086 R)
• M7: 2,508,906 km (0.094 R)
• M8: 3,006,020 km (0.114 R)
• M9: 3,314,490 km (0.115 R)
• M10: 3,811,455 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.8

Radius: 10.1

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.54 AU - 1.54 AU

Year: 1234 Days

Day: 7 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,110,682 km

• M1: 148,102 km (0.069 R)
• M2: 477,666 km (0.107 R)
• M3: 888,163 km (0.1 R)
• M4: 1,799,962 km (0.078 R)
• M5: 2,903,246 km (0.105 R)
• M6: 3,232,511 km (0.116 R)
• M7: 3,690,729 km (0.07 R)
• M8: 4,991,483 km (0.092 R)
• M9: 5,807,389 km (0.1 R)
• M10: 6,225,964 km (0.06 R)
• M11: 6,553,135 km (0.112 R)
• M12: 8,656,481 km (0.087 R)
• M13: 9,514,574 km (0.116 R)
• M14: 9,890,813 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.1

Radius: 12.9

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.23 AU - 1.91 AU

Year: 1270 Days

Day: 13.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,110,682 km

• M1: 160,967 km (0.049 R)
• M2: 848,220 km (0.119 R)
• M3: 1,356,254 km (0.083 R)
• M4: 1,781,711 km (0.113 R)
• M5: 2,254,590 km (0.12 R)
• M6: 3,177,908 km (0.104 R)
• M7: 3,681,304 km (0.111 R)
• M8: 5,461,519 km (0.059 R)
• M9: 6,297,023 km (0.103 R)
• M10: 7,096,624 km (0.115 R)
• M11: 7,558,283 km (0.083 R)
• M12: 8,091,898 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.5

Radius: 13.5

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.81 AU - 2.75 AU

Year: 2223 Days

Day: 13.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,110,682 km

• M1: 167,998 km (0.072 R)
• M2: 590,612 km (0.101 R)
• M3: 1,132,905 km (0.094 R)
• M4: 1,986,061 km (0.11 R)
• M5: 2,563,509 km (0.078 R)
• M6: 3,085,007 km (0.066 R)
• M7: 3,549,359 km (0.1 R)
• M8: 4,262,193 km (0.037 R)
• M9: 5,846,434 km (0.108 R)
• M10: 7,043,965 km (0.094 R)
• M11: 7,701,298 km (0.083 R)
• M12: 8,696,723 km (0.076 R)
• M13: 9,243,054 km (0.037 R)
• M14: 11,218,793 km (0.079 R)
• M15: 12,886,361 km (0.111 R)
• M16: 13,825,386 km (0.066 R)
• M17: 15,789,606 km (0.111 R)
• M18: 16,244,683 km (0.116 R)
• M19: 17,075,101 km (0.118 R)
• M20: 18,990,552 km (0.113 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.3

Radius: 9.2

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.84 AU - 2.86 AU

Year: 2326 Days

Day: 7.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,110,682 km

• M1: 114,442 km (0.119 R)
• M2: 505,491 km (0.051 R)
• M3: 797,057 km (0.101 R)
• M4: 1,479,523 km (0.049 R)
• M5: 1,992,045 km (0.052 R)
• M6: 2,457,594 km (0.113 R)
• M7: 2,964,132 km (0.052 R)
• M8: 3,438,208 km (0.111 R)
• M9: 4,846,971 km (0.094 R)
• M10: 5,552,475 km (0.068 R)
• M11: 6,606,242 km (0.053 R)
• M12: 7,672,426 km (0.12 R)
• M13: 8,881,326 km (0.094 R)
• M14: 9,169,901 km (0.12 R)
• M15: 9,867,924 km (0.108 R)
• M16: 11,146,238 km (0.065 R)
• M17: 12,175,172 km (0.117 R)
• M18: 12,732,873 km (0.109 R)
• M19: 13,224,452 km (0.053 R)

Planet 10 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.9

Radius: 15

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.13 AU - 4.21 AU

Year: 4540 Days

Day: 7 Hours

Environment

Temp: -204 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,110,682 km

• M1: 186,549 km (0.085 R)
• M2: 688,150 km (0.03 R)
• M3: 1,183,618 km (0.097 R)
• M4: 1,699,432 km (0.088 R)
• M5: 2,412,565 km (0.093 R)
• M6: 3,918,267 km (0.055 R)
• M7: 4,447,395 km (0.102 R)
• M8: 5,899,691 km (0.074 R)
• M9: 6,508,255 km (0.093 R)
• M10: 7,483,185 km (0.087 R)
• M11: 8,445,697 km (0.1 R)
• M12: 9,842,642 km (0.028 R)
• M13: 11,432,718 km (0.115 R)
• M14: 12,059,832 km (0.094 R)
• M15: 12,709,985 km (0.103 R)
• M16: 13,481,311 km (0.105 R)
• M17: 14,080,301 km (0.088 R)
• M18: 15,171,169 km (0.062 R)
• M19: 15,874,428 km (0.05 R)
• M20: 16,373,786 km (0.111 R)
• M21: 18,906,777 km (0.057 R)
• M22: 19,912,823 km (0.115 R)
• M23: 20,822,079 km (0.111 R)
• M24: 21,826,928 km (0.081 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: 216 - 13,423 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit