🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.65 AU - 1.07 AU

Year: 356 Days

Day: 30.5 Hours

Environment

Temp: -43 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,503,204 km

• M1: 53,257 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.89 AU - 1.11 AU

Year: 446 Days

Day: 45.9 Hours

Environment

Temp: -72 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.82 AU - 1.32 AU

Year: 494 Days

Day: 30.8 Hours

Environment

Temp: -65 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.35 AU - 1.79 AU

Year: 878 Days

Day: 22.1 Hours

Environment

Temp: -97 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.53 AU - 1.89 AU

Year: 998 Days

Day: 21.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 129 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,503,204 km

• M1: 191,635 km (0.095 R)

Asteroid Belt

Center: 3.03 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947

Radius: 8.5

Gravity: 13.11 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.25 AU - 4.45 AU

Year: 4048 Days

Day: 10.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,503,204 km

• M1: 106,065 km (0.104 R)
• M2: 395,088 km (0.098 R)
• M3: 659,876 km (0.111 R)
• M4: 1,509,891 km (0.116 R)
• M5: 1,806,394 km (0.058 R)
• M6: 2,232,150 km (0.043 R)
• M7: 2,706,225 km (0.119 R)
• M8: 3,090,243 km (0.109 R)
• M9: 4,199,661 km (0.079 R)
• M10: 4,949,894 km (0.111 R)
• M11: 5,669,909 km (0.06 R)
• M12: 6,055,273 km (0.091 R)
• M13: 6,363,445 km (0.079 R)
• M14: 7,596,131 km (0.117 R)
• M15: 9,382,479 km (0.095 R)
• M16: 9,880,191 km (0.07 R)
• M17: 12,048,463 km (0.067 R)
• M18: 12,636,532 km (0.071 R)
• M19: 13,398,284 km (0.109 R)
• M20: 14,190,405 km (0.118 R)
• M21: 15,351,285 km (0.07 R)
• M22: 17,486,645 km (0.1 R)
• M23: 18,368,075 km (0.116 R)
• M24: 18,690,010 km (0.062 R)
• M25: 19,345,099 km (0.062 R)
• M26: 22,926,472 km (0.084 R)
• M27: 25,785,587 km (0.079 R)
• M28: 27,509,852 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.8

Radius: 11.6

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.24 AU - 5.76 AU

Year: 5756 Days

Day: 9.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,503,204 km

• M1: 145,559 km (0.115 R)
• M2: 616,942 km (0.109 R)
• M3: 1,009,187 km (0.087 R)
• M4: 1,425,967 km (0.118 R)
• M5: 1,917,396 km (0.116 R)
• M6: 3,072,890 km (0.047 R)
• M7: 5,063,589 km (0.115 R)
• M8: 6,159,543 km (0.081 R)
• M9: 6,665,782 km (0.056 R)
• M10: 8,738,161 km (0.108 R)
• M11: 9,134,745 km (0.086 R)
• M12: 9,543,297 km (0.027 R)
• M13: 10,049,835 km (0.074 R)
• M14: 11,070,691 km (0.104 R)
• M15: 12,208,233 km (0.065 R)
• M16: 13,579,448 km (0.115 R)
• M17: 14,112,614 km (0.032 R)
• M18: 14,826,495 km (0.077 R)
• M19: 19,157,503 km (0.072 R)
• M20: 19,558,126 km (0.107 R)
• M21: 20,445,691 km (0.114 R)
• M22: 23,497,038 km (0.095 R)
• M23: 26,016,715 km (0.109 R)
• M24: 27,341,853 km (0.083 R)
• M25: 28,021,028 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.5

Radius: 10.8

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 7.54 AU - 8.16 AU

Year: 9814 Days

Day: 6.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 97.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,503,204 km

• M1: 287,677 km (0.111 R)
• M2: 702,811 km (0.108 R)
• M3: 1,660,985 km (0.107 R)
• M4: 2,738,239 km (0.056 R)
• M5: 3,359,370 km (0.104 R)
• M6: 6,823,458 km (0.092 R)
• M7: 8,252,417 km (0.119 R)
• M8: 8,884,318 km (0.104 R)
• M9: 9,270,730 km (0.116 R)
• M10: 14,776,530 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.6

Radius: 5.8

Gravity: 27.99 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 10.04 AU - 12.78 AU

Year: 17198 Days

Day: 16 Hours

Environment

Temp: -203 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,503,204 km

• M1: 72,256 km (0.083 R)
• M2: 385,215 km (0.038 R)
• M3: 897,138 km (0.092 R)
• M4: 1,223,860 km (0.076 R)
• M5: 1,446,761 km (0.066 R)
• M6: 3,405,596 km (0.095 R)
• M7: 3,850,200 km (0.117 R)
• M8: 4,167,497 km (0.106 R)
• M9: 6,022,661 km (0.089 R)
• M10: 8,524,835 km (0.111 R)
• M11: 9,798,960 km (0.097 R)
• M12: 10,451,206 km (0.062 R)
• M13: 10,818,918 km (0.11 R)
• M14: 13,857,400 km (0.118 R)
• M15: 17,081,534 km (0.104 R)
• M16: 17,763,999 km (0.083 R)
• M17: 18,553,427 km (0.111 R)
• M18: 19,549,899 km (0.095 R)
• M19: 20,296,542 km (0.119 R)
• M20: 20,965,244 km (0.059 R)
• M21: 21,354,049 km (0.057 R)
• M22: 25,841,087 km (0.115 R)
• M23: 28,244,826 km (0.091 R)
• M24: 29,440,113 km (0.087 R)
• M25: 31,803,311 km (0.08 R)
• M26: 33,623,468 km (0.097 R)
• M27: 34,424,415 km (0.058 R)
• M28: 35,238,078 km (0.077 R)
• M29: 36,203,283 km (0.063 R)
• M30: 38,186,502 km (0.105 R)
• M31: 42,213,826 km (0.037 R)
• M32: 47,342,490 km (0.111 R)
• M33: 60,956,944 km (0.093 R)
• M34: 61,154,263 km (0.08 R)
• M35: 63,960,570 km (0.076 R)
• M36: 65,189,217 km (0.027 R)
• M37: 70,477,950 km (0.096 R)
• M38: 74,458,151 km (0.078 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 15,963 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit