🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.43 AU - 0.65 AU

Year: 260 Days

Day: 35.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 110.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 11.9

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.65 AU - 1.05 AU

Year: 514 Days

Day: 14.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,345,772 km

• M1: 147,952 km (0.087 R)
• M2: 600,336 km (0.052 R)
• M3: 1,029,084 km (0.096 R)
• M4: 1,469,350 km (0.107 R)
• M5: 1,929,813 km (0.042 R)
• M6: 2,735,995 km (0.095 R)
• M7: 3,430,878 km (0.041 R)
• M8: 4,099,281 km (0.082 R)
• M9: 4,711,585 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17

Radius: 11.2

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.85 AU - 1.25 AU

Year: 706 Days

Day: 9.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 148.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 72,345,772 km

• M1: 139,874 km (0.112 R)
• M2: 1,165,816 km (0.115 R)
• M3: 1,697,936 km (0.096 R)
• M4: 2,275,084 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.6

Radius: 10.4

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.8 AU - 2.72 AU

Year: 2229 Days

Day: 6.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,345,772 km

• M1: 138,079 km (0.119 R)
• M2: 481,855 km (0.082 R)
• M3: 1,358,199 km (0.082 R)
• M4: 1,833,322 km (0.063 R)
• M5: 2,312,035 km (0.065 R)
• M6: 2,666,881 km (0.059 R)
• M7: 3,251,510 km (0.095 R)
• M8: 3,808,463 km (0.12 R)
• M9: 4,655,935 km (0.102 R)
• M10: 5,434,891 km (0.075 R)
• M11: 5,818,759 km (0.112 R)
• M12: 6,220,878 km (0.05 R)
• M13: 8,359,080 km (0.101 R)
• M14: 9,371,708 km (0.078 R)
• M15: 9,960,825 km (0.111 R)
• M16: 11,561,223 km (0.108 R)
• M17: 12,733,172 km (0.098 R)
• M18: 13,155,188 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307

Radius: 14.7

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.48 AU - 3.1 AU

Year: 3057 Days

Day: 13.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,345,772 km

• M1: 182,809 km (0.059 R)
• M2: 1,037,162 km (0.114 R)
• M3: 1,806,394 km (0.038 R)
• M4: 2,353,922 km (0.098 R)
• M5: 3,105,203 km (0.077 R)
• M6: 4,498,707 km (0.115 R)
• M7: 5,474,534 km (0.118 R)
• M8: 6,800,420 km (0.059 R)
• M9: 8,900,026 km (0.077 R)
• M10: 11,633,478 km (0.113 R)
• M11: 14,165,123 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.2

Radius: 13.9

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.06 AU - 3.06 AU

Year: 3511 Days

Day: 5 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,345,772 km

• M1: 178,470 km (0.119 R)
• M2: 724,802 km (0.066 R)
• M3: 1,190,350 km (0.084 R)
• M4: 1,730,099 km (0.072 R)
• M5: 2,692,762 km (0.101 R)
• M6: 5,319,700 km (0.087 R)
• M7: 6,534,884 km (0.116 R)
• M8: 7,432,920 km (0.114 R)
• M9: 8,054,798 km (0.041 R)
• M10: 8,677,724 km (0.088 R)
• M11: 9,653,999 km (0.074 R)
• M12: 10,169,065 km (0.08 R)
• M13: 11,254,547 km (0.118 R)
• M14: 11,701,545 km (0.053 R)
• M15: 12,458,660 km (0.103 R)
• M16: 13,609,666 km (0.112 R)
• M17: 17,870,363 km (0.084 R)
• M18: 18,874,913 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.4

Radius: 13.2

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.57 AU - 3.75 AU

Year: 3685 Days

Day: 8.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,345,772 km

• M1: 164,109 km (0.118 R)
• M2: 661,522 km (0.065 R)
• M3: 1,201,869 km (0.105 R)
• M4: 1,706,912 km (0.102 R)
• M5: 2,244,267 km (0.097 R)
• M6: 2,689,620 km (0.11 R)
• M7: 3,516,448 km (0.112 R)
• M8: 4,311,560 km (0.114 R)
• M9: 5,175,039 km (0.108 R)
• M10: 6,096,263 km (0.105 R)
• M11: 6,740,431 km (0.098 R)
• M12: 9,377,094 km (0.077 R)
• M13: 9,819,305 km (0.093 R)
• M14: 11,771,557 km (0.107 R)
• M15: 12,243,239 km (0.111 R)
• M16: 16,115,580 km (0.115 R)
• M17: 16,967,091 km (0.085 R)
• M18: 18,934,303 km (0.107 R)
• M19: 20,368,348 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.9

Radius: 13.1

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 4.16 AU - 5.98 AU

Year: 7489 Days

Day: 5.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,345,772 km

• M1: 162,912 km (0.083 R)
• M2: 595,549 km (0.095 R)
• M3: 1,007,990 km (0.098 R)
• M4: 1,974,094 km (0.12 R)
• M5: 2,894,719 km (0.057 R)
• M6: 3,310,002 km (0.081 R)
• M7: 3,934,723 km (0.032 R)
• M8: 4,747,937 km (0.053 R)
• M9: 5,360,541 km (0.053 R)
• M10: 6,091,326 km (0.112 R)
• M11: 6,708,866 km (0.116 R)
• M12: 7,558,582 km (0.055 R)
• M13: 7,989,573 km (0.093 R)
• M14: 9,835,312 km (0.116 R)
• M15: 13,595,604 km (0.061 R)
• M16: 14,117,401 km (0.04 R)
• M17: 16,017,893 km (0.114 R)
• M18: 16,731,624 km (0.045 R)
• M19: 21,389,952 km (0.056 R)
• M20: 22,017,216 km (0.09 R)
• M21: 26,042,596 km (0.047 R)
• M22: 31,935,705 km (0.11 R)
• M23: 33,800,143 km (0.059 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.9

Radius: 10.2

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.89 AU - 5.49 AU

Year: 7756 Days

Day: 13.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,345,772 km

• M1: 126,859 km (0.069 R)
• M2: 643,420 km (0.103 R)
• M3: 1,150,258 km (0.092 R)
• M4: 2,980,588 km (0.097 R)
• M5: 3,973,918 km (0.102 R)
• M6: 5,813,074 km (0.091 R)
• M7: 6,601,754 km (0.036 R)
• M8: 8,626,112 km (0.098 R)
• M9: 9,108,566 km (0.092 R)
• M10: 10,171,608 km (0.091 R)
• M11: 11,173,914 km (0.068 R)
• M12: 11,796,390 km (0.095 R)
• M13: 13,110,608 km (0.119 R)
• M14: 13,533,970 km (0.109 R)
• M15: 17,829,673 km (0.119 R)
• M16: 19,901,154 km (0.098 R)
• M17: 20,602,320 km (0.086 R)
• M18: 21,611,507 km (0.103 R)
• M19: 22,880,845 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 916.8

Radius: 3.2

Gravity: 89.53 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.53 AU - 10.31 AU

Year: 16028 Days

Day: 23.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,345,772 km

• M1: 42,187 km (0.117 R)
• M2: 181,013 km (0.113 R)
• M3: 382,671 km (0.113 R)
• M4: 584,180 km (0.065 R)
• M5: 748,438 km (0.064 R)
• M6: 978,220 km (0.109 R)
• M7: 1,821,504 km (0.096 R)
• M8: 2,409,124 km (0.086 R)
• M9: 4,807,627 km (0.088 R)
• M10: 8,598,736 km (0.045 R)
• M11: 10,502,668 km (0.093 R)
• M12: 10,988,263 km (0.117 R)
• M13: 11,425,388 km (0.114 R)
• M14: 12,943,058 km (0.09 R)
• M15: 14,074,766 km (0.045 R)
• M16: 16,613,891 km (0.047 R)
• M17: 17,777,463 km (0.049 R)
• M18: 19,351,981 km (0.056 R)
• M19: 21,017,005 km (0.091 R)
• M20: 21,303,485 km (0.083 R)
• M21: 23,280,271 km (0.081 R)
• M22: 25,053,903 km (0.098 R)
• M23: 26,915,499 km (0.117 R)
• M24: 29,697,720 km (0.04 R)
• M25: 30,422,073 km (0.111 R)
• M26: 37,758,951 km (0.095 R)
• M27: 40,346,097 km (0.046 R)
• M28: 42,135,138 km (0.043 R)
• M29: 44,916,461 km (0.066 R)
• M30: 46,030,517 km (0.1 R)
• M31: 46,191,035 km (0.111 R)
• M32: 48,479,135 km (0.104 R)
• M33: 50,670,444 km (0.075 R)
• M34: 51,530,483 km (0.119 R)
• M35: 55,977,130 km (0.105 R)
• M36: 56,343,644 km (0.114 R)
• M37: 60,480,175 km (0.075 R)
• M38: 70,198,202 km (0.097 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 11,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit