🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.2

Radius: 13.9

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.59 AU - 0.83 AU

Year: 392 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,496,882 km

• M1: 172,935 km (0.088 R)
• M2: 795,113 km (0.115 R)
• M3: 1,312,871 km (0.111 R)
• M4: 1,767,200 km (0.041 R)
• M5: 2,728,516 km (0.114 R)
• M6: 3,605,009 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.3

Radius: 11.3

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.64 AU - 0.98 AU

Year: 478 Days

Day: 14.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,496,882 km

• M1: 140,622 km (0.094 R)
• M2: 539,450 km (0.057 R)
• M3: 1,196,484 km (0.118 R)
• M4: 1,785,451 km (0.083 R)
• M5: 2,250,550 km (0.119 R)
• M6: 2,871,232 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.5

Radius: 14.7

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.8 AU - 1.94 AU

Year: 1678 Days

Day: 12.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,496,882 km

• M1: 182,809 km (0.119 R)
• M2: 666,010 km (0.05 R)
• M3: 1,132,007 km (0.036 R)
• M4: 1,680,433 km (0.075 R)
• M5: 2,345,695 km (0.031 R)
• M6: 2,817,975 km (0.054 R)
• M7: 3,959,108 km (0.105 R)
• M8: 4,440,663 km (0.102 R)
• M9: 5,866,331 km (0.112 R)
• M10: 6,672,514 km (0.111 R)
• M11: 7,331,642 km (0.063 R)
• M12: 8,658,126 km (0.088 R)
• M13: 10,517,179 km (0.105 R)
• M14: 11,559,577 km (0.118 R)
• M15: 13,352,807 km (0.096 R)
• M16: 13,849,771 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.8

Radius: 9.9

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.73 AU - 2.79 AU

Year: 2229 Days

Day: 9.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,496,882 km

• M1: 123,119 km (0.115 R)
• M2: 538,702 km (0.047 R)
• M3: 881,131 km (0.066 R)
• M4: 1,733,091 km (0.066 R)
• M5: 2,093,772 km (0.062 R)
• M6: 2,425,281 km (0.108 R)
• M7: 2,995,398 km (0.106 R)
• M8: 3,773,606 km (0.106 R)
• M9: 4,153,136 km (0.061 R)
• M10: 4,699,019 km (0.069 R)
• M11: 5,195,983 km (0.085 R)
• M12: 5,626,675 km (0.116 R)
• M13: 7,397,465 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.1

Radius: 12.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.27 AU - 2.63 AU

Year: 2516 Days

Day: 12.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,496,882 km

• M1: 160,668 km (0.066 R)
• M2: 686,056 km (0.058 R)
• M3: 1,559,558 km (0.114 R)
• M4: 2,946,779 km (0.096 R)
• M5: 4,925,061 km (0.088 R)
• M6: 6,487,162 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.1

Radius: 8.7

Gravity: 10.35 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.15 AU - 2.99 AU

Year: 2703 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,496,882 km

• M1: 108,159 km (0.08 R)
• M2: 382,223 km (0.116 R)
• M3: 693,835 km (0.108 R)
• M4: 1,017,266 km (0.116 R)
• M5: 1,325,736 km (0.114 R)
• M6: 1,742,366 km (0.107 R)
• M7: 2,137,006 km (0.081 R)
• M8: 2,824,557 km (0.09 R)
• M9: 3,299,979 km (0.032 R)
• M10: 4,587,867 km (0.07 R)
• M11: 5,419,931 km (0.106 R)
• M12: 6,377,058 km (0.12 R)
• M13: 7,075,231 km (0.107 R)
• M14: 7,663,151 km (0.106 R)
• M15: 8,866,367 km (0.071 R)
• M16: 10,037,568 km (0.117 R)
• M17: 11,433,167 km (0.12 R)
• M18: 12,550,513 km (0.041 R)
• M19: 12,999,157 km (0.052 R)
• M20: 13,976,031 km (0.107 R)
• M21: 16,023,129 km (0.098 R)
• M22: 17,531,075 km (0.036 R)
• M23: 17,866,025 km (0.11 R)
• M24: 19,308,298 km (0.095 R)
• M25: 20,027,565 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.3

Radius: 11.7

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.63 AU - 3.93 AU

Year: 3897 Days

Day: 14.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,496,882 km

• M1: 147,653 km (0.086 R)
• M2: 575,054 km (0.093 R)
• M3: 1,107,174 km (0.046 R)
• M4: 1,533,677 km (0.119 R)
• M5: 2,628,584 km (0.037 R)
• M6: 3,568,508 km (0.088 R)
• M7: 4,264,138 km (0.081 R)
• M8: 7,743,784 km (0.087 R)
• M9: 8,475,467 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.2

Radius: 6.8

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.35 AU - 6.51 AU

Year: 10696 Days

Day: 24.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,496,882 km

• M1: 84,822 km (0.118 R)
• M2: 377,585 km (0.078 R)
• M3: 695,481 km (0.078 R)
• M4: 1,379,741 km (0.118 R)
• M5: 2,496,639 km (0.116 R)
• M6: 2,856,123 km (0.091 R)
• M7: 3,746,379 km (0.083 R)
• M8: 5,366,674 km (0.106 R)
• M9: 5,661,083 km (0.07 R)
• M10: 5,935,296 km (0.062 R)
• M11: 7,087,050 km (0.068 R)
• M12: 9,955,888 km (0.113 R)
• M13: 11,866,103 km (0.115 R)
• M14: 14,174,398 km (0.102 R)
• M15: 15,316,279 km (0.062 R)
• M16: 16,151,185 km (0.105 R)
• M17: 19,588,196 km (0.12 R)
• M18: 22,032,326 km (0.046 R)
• M19: 23,875,371 km (0.116 R)
• M20: 25,487,737 km (0.119 R)
• M21: 28,838,281 km (0.089 R)
• M22: 30,201,566 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.3

Radius: 3.7

Gravity: 55.17 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.33 AU - 8.45 AU

Year: 11864 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,496,882 km

• M1: 46,375 km (0.038 R)
• M2: 236,963 km (0.101 R)
• M3: 391,498 km (0.088 R)
• M4: 559,496 km (0.11 R)
• M5: 812,616 km (0.069 R)
• M6: 943,963 km (0.119 R)
• M7: 1,078,002 km (0.117 R)
• M8: 1,779,167 km (0.071 R)
• M9: 2,993,603 km (0.081 R)
• M10: 3,594,837 km (0.108 R)
• M11: 4,037,946 km (0.068 R)
• M12: 4,272,814 km (0.113 R)
• M13: 4,932,391 km (0.104 R)
• M14: 5,766,400 km (0.114 R)
• M15: 6,730,857 km (0.096 R)
• M16: 7,060,870 km (0.119 R)
• M17: 7,401,654 km (0.115 R)
• M18: 7,842,818 km (0.056 R)
• M19: 8,395,133 km (0.095 R)
• M20: 9,941,377 km (0.05 R)
• M21: 10,423,531 km (0.097 R)
• M22: 12,944,405 km (0.12 R)
• M23: 13,261,552 km (0.114 R)
• M24: 13,519,010 km (0.08 R)
• M25: 13,714,235 km (0.104 R)
• M26: 20,145,148 km (0.102 R)
• M27: 24,100,516 km (0.048 R)
• M28: 28,864,909 km (0.061 R)
• M29: 34,099,787 km (0.094 R)
• M30: 36,686,634 km (0.087 R)
• M31: 36,939,604 km (0.072 R)
• M32: 37,321,228 km (0.113 R)
• M33: 39,799,766 km (0.027 R)
• M34: 42,246,887 km (0.083 R)
• M35: 46,544,984 km (0.063 R)
• M36: 49,105,351 km (0.094 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: 364 - 19,819 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit