🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.45 AU - 0.69 AU

Year: 282 Days

Day: 45.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,847,303 km

• M1: 58,493 km (0.029 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.59 AU - 0.71 AU

Year: 344 Days

Day: 43.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 5.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,847,303 km

• M1: 43,383 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.9

Radius: 13.5

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.05 AU - 1.11 AU

Year: 736 Days

Day: 7.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,847,303 km

• M1: 167,849 km (0.087 R)
• M2: 599,439 km (0.104 R)
• M3: 1,068,129 km (0.093 R)
• M4: 1,544,748 km (0.057 R)
• M5: 2,155,556 km (0.09 R)
• M6: 2,638,009 km (0.074 R)
• M7: 3,312,994 km (0.066 R)
• M8: 3,736,057 km (0.101 R)
• M9: 4,292,113 km (0.07 R)
• M10: 4,992,380 km (0.082 R)
• M11: 6,556,725 km (0.112 R)
• M12: 7,322,517 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.9

Radius: 12.5

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.03 AU - 1.21 AU

Year: 778 Days

Day: 13.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,847,303 km

• M1: 176,825 km (0.072 R)
• M2: 581,637 km (0.101 R)
• M3: 1,017,864 km (0.12 R)
• M4: 1,456,784 km (0.029 R)
• M5: 1,864,737 km (0.069 R)
• M6: 3,020,830 km (0.113 R)
• M7: 3,907,646 km (0.047 R)
• M8: 4,607,465 km (0.105 R)
• M9: 5,033,370 km (0.043 R)
• M10: 6,006,355 km (0.107 R)
• M11: 6,625,839 km (0.099 R)
• M12: 7,124,000 km (0.106 R)
• M13: 7,769,365 km (0.115 R)
• M14: 8,246,732 km (0.107 R)
• M15: 8,637,332 km (0.116 R)
• M16: 9,122,329 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.1

Radius: 8.5

Gravity: 9.52 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.35 AU - 4.95 AU

Year: 6578 Days

Day: 13.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,847,303 km

• M1: 106,065 km (0.113 R)
• M2: 399,726 km (0.073 R)
• M3: 705,952 km (0.067 R)
• M4: 988,692 km (0.113 R)
• M5: 1,430,604 km (0.05 R)
• M6: 2,171,712 km (0.098 R)
• M7: 2,510,701 km (0.112 R)
• M8: 2,787,906 km (0.097 R)
• M9: 3,231,912 km (0.102 R)
• M10: 4,084,471 km (0.061 R)
• M11: 5,404,522 km (0.102 R)
• M12: 5,711,946 km (0.117 R)
• M13: 6,600,707 km (0.084 R)
• M14: 7,096,624 km (0.112 R)
• M15: 10,994,247 km (0.1 R)
• M16: 12,899,675 km (0.074 R)
• M17: 16,313,797 km (0.092 R)
• M18: 16,892,592 km (0.117 R)
• M19: 20,508,372 km (0.109 R)
• M20: 24,945,744 km (0.07 R)
• M21: 26,234,829 km (0.088 R)
• M22: 27,658,103 km (0.058 R)
• M23: 28,296,736 km (0.105 R)
• M24: 32,537,986 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.6

Radius: 6.3

Gravity: 19.64 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.54 AU - 8.32 AU

Year: 11968 Days

Day: 23.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 94.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 61,847,303 km

• M1: 78,389 km (0.052 R)
• M2: 288,125 km (0.104 R)
• M3: 549,623 km (0.078 R)
• M4: 1,034,619 km (0.073 R)
• M5: 1,249,890 km (0.085 R)
• M6: 1,452,296 km (0.082 R)
• M7: 1,805,796 km (0.026 R)
• M8: 2,863,004 km (0.112 R)
• M9: 5,177,582 km (0.085 R)
• M10: 6,002,016 km (0.091 R)
• M11: 7,507,120 km (0.098 R)
• M12: 13,054,509 km (0.085 R)
• M13: 13,831,520 km (0.097 R)
• M14: 14,366,482 km (0.074 R)
• M15: 15,764,025 km (0.1 R)
• M16: 16,945,549 km (0.104 R)
• M17: 18,026,693 km (0.094 R)
• M18: 18,264,254 km (0.083 R)
• M19: 22,083,039 km (0.116 R)
• M20: 24,807,217 km (0.081 R)
• M21: 26,097,947 km (0.074 R)
• M22: 29,905,213 km (0.114 R)
• M23: 35,288,043 km (0.098 R)
• M24: 39,524,206 km (0.091 R)
• M25: 42,110,753 km (0.081 R)
• M26: 42,669,352 km (0.113 R)
• M27: 47,467,554 km (0.116 R)
• M28: 49,143,499 km (0.086 R)
• M29: 49,762,685 km (0.084 R)
• M30: 51,970,450 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.7

Radius: 3.6

Gravity: 22.51 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.93 AU - 9.61 AU

Year: 14208 Days

Day: 20.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 61,847,303 km

• M1: 47,423 km (0.107 R)
• M2: 241,900 km (0.083 R)
• M3: 367,113 km (0.066 R)
• M4: 490,980 km (0.108 R)
• M5: 658,530 km (0.063 R)
• M6: 773,421 km (0.101 R)
• M7: 1,249,741 km (0.071 R)
• M8: 1,508,994 km (0.054 R)
• M9: 2,222,725 km (0.094 R)
• M10: 2,445,925 km (0.109 R)
• M11: 4,863,128 km (0.051 R)
• M12: 7,095,577 km (0.083 R)
• M13: 7,537,788 km (0.116 R)
• M14: 10,227,857 km (0.058 R)
• M15: 10,481,575 km (0.106 R)
• M16: 10,739,482 km (0.098 R)
• M17: 11,001,727 km (0.071 R)
• M18: 13,739,068 km (0.097 R)
• M19: 15,067,498 km (0.084 R)
• M20: 20,831,653 km (0.081 R)
• M21: 21,569,021 km (0.05 R)
• M22: 23,444,679 km (0.076 R)
• M23: 27,321,957 km (0.113 R)
• M24: 28,804,023 km (0.094 R)
• M25: 35,731,601 km (0.116 R)
• M26: 41,088,551 km (0.114 R)
• M27: 42,767,937 km (0.071 R)
• M28: 44,627,139 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627

Radius: 5.2

Gravity: 23.19 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.33 AU - 10.01 AU

Year: 15319 Days

Day: 19.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 61,847,303 km

• M1: 65,075 km (0.084 R)
• M2: 277,354 km (0.072 R)
• M3: 704,756 km (0.115 R)
• M4: 1,029,981 km (0.104 R)
• M5: 1,321,697 km (0.11 R)
• M6: 2,244,866 km (0.039 R)
• M7: 2,759,333 km (0.085 R)
• M8: 3,508,668 km (0.093 R)
• M9: 4,108,406 km (0.067 R)
• M10: 4,674,784 km (0.092 R)
• M11: 5,291,725 km (0.088 R)
• M12: 6,727,865 km (0.115 R)
• M13: 8,503,592 km (0.103 R)
• M14: 8,802,040 km (0.089 R)
• M15: 10,121,044 km (0.112 R)
• M16: 10,798,872 km (0.117 R)
• M17: 11,871,489 km (0.06 R)
• M18: 12,689,041 km (0.081 R)
• M19: 13,013,369 km (0.099 R)
• M20: 13,678,332 km (0.12 R)
• M21: 14,435,895 km (0.11 R)
• M22: 18,233,736 km (0.091 R)
• M23: 18,398,145 km (0.111 R)
• M24: 26,129,213 km (0.116 R)
• M25: 28,712,319 km (0.112 R)
• M26: 30,295,214 km (0.072 R)
• M27: 33,020,289 km (0.113 R)
• M28: 34,756,522 km (0.105 R)
• M29: 35,904,387 km (0.07 R)
• M30: 40,468,767 km (0.108 R)
• M31: 42,889,560 km (0.116 R)
• M32: 47,549,234 km (0.082 R)
• M33: 50,081,328 km (0.104 R)
• M34: 50,565,875 km (0.108 R)
• M35: 58,392,238 km (0.089 R)
• M36: 61,108,935 km (0.097 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 303 - 11,171 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit