🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.5 AU - 0.78 AU

Year: 331 Days

Day: 16.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.3

Radius: 9.8

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.78 AU - 0.84 AU

Year: 471 Days

Day: 10.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,241,849 km

• M1: 121,922 km (0.107 R)
• M2: 564,433 km (0.071 R)
• M3: 941,419 km (0.094 R)
• M4: 1,294,321 km (0.12 R)
• M5: 2,067,143 km (0.095 R)
• M6: 3,779,740 km (0.102 R)
• M7: 4,677,626 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.9

Radius: 11.2

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.08 AU - 1.5 AU

Year: 946 Days

Day: 6.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,241,849 km

• M1: 139,276 km (0.037 R)
• M2: 503,846 km (0.113 R)
• M3: 908,807 km (0.117 R)
• M4: 1,379,741 km (0.083 R)
• M5: 1,843,644 km (0.096 R)
• M6: 2,531,196 km (0.109 R)
• M7: 3,370,290 km (0.078 R)
• M8: 3,786,621 km (0.109 R)
• M9: 4,851,160 km (0.091 R)
• M10: 6,086,090 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.9

Radius: 10.4

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.66 AU - 2.76 AU

Year: 2881 Days

Day: 5.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,241,849 km

• M1: 129,402 km (0.064 R)
• M2: 680,970 km (0.1 R)
• M3: 1,219,671 km (0.046 R)
• M4: 1,677,591 km (0.072 R)
• M5: 2,632,773 km (0.087 R)
• M6: 4,284,483 km (0.086 R)
• M7: 5,478,424 km (0.117 R)
• M8: 6,426,575 km (0.085 R)
• M9: 7,327,603 km (0.088 R)
• M10: 7,952,324 km (0.11 R)
• M11: 8,510,922 km (0.08 R)
• M12: 10,344,842 km (0.057 R)
• M13: 11,091,037 km (0.074 R)
• M14: 11,957,208 km (0.058 R)
• M15: 12,867,810 km (0.103 R)
• M16: 15,121,951 km (0.053 R)
• M17: 16,082,968 km (0.114 R)
• M18: 16,870,002 km (0.103 R)
• M19: 17,627,566 km (0.029 R)
• M20: 18,126,325 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.2

Radius: 14.5

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.22 AU - 3.22 AU

Year: 2896 Days

Day: 13.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,241,849 km

• M1: 180,415 km (0.107 R)
• M2: 708,047 km (0.113 R)
• M3: 1,161,777 km (0.102 R)
• M4: 1,792,631 km (0.09 R)
• M5: 2,839,218 km (0.075 R)
• M6: 3,307,459 km (0.118 R)
• M7: 4,159,120 km (0.081 R)
• M8: 5,899,542 km (0.118 R)
• M9: 6,552,686 km (0.083 R)
• M10: 7,405,095 km (0.037 R)
• M11: 8,085,316 km (0.034 R)
• M12: 9,938,385 km (0.108 R)
• M13: 10,443,128 km (0.037 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.1

Radius: 12.2

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.5 AU - 4.01 AU

Year: 4689 Days

Day: 13 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,241,849 km

• M1: 151,692 km (0.079 R)
• M2: 621,130 km (0.075 R)
• M3: 1,789,789 km (0.069 R)
• M4: 2,711,910 km (0.067 R)
• M5: 4,276,854 km (0.1 R)
• M6: 4,815,256 km (0.083 R)
• M7: 5,721,371 km (0.069 R)
• M8: 6,646,334 km (0.043 R)
• M9: 7,112,930 km (0.073 R)
• M10: 7,735,556 km (0.062 R)
• M11: 8,977,518 km (0.085 R)
• M12: 10,266,154 km (0.083 R)
• M13: 11,763,928 km (0.084 R)
• M14: 12,263,435 km (0.114 R)
• M15: 14,976,991 km (0.074 R)
• M16: 17,889,512 km (0.094 R)
• M17: 20,502,687 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.6

Radius: 9.1

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.06 AU - 5.68 AU

Year: 6939 Days

Day: 12.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 79,241,849 km

• M1: 114,293 km (0.076 R)
• M2: 439,070 km (0.082 R)
• M3: 912,098 km (0.115 R)
• M4: 1,416,243 km (0.082 R)
• M5: 1,970,503 km (0.067 R)
• M6: 2,457,893 km (0.088 R)
• M7: 3,172,971 km (0.109 R)
• M8: 4,045,874 km (0.101 R)
• M9: 4,806,879 km (0.11 R)
• M10: 5,532,428 km (0.09 R)
• M11: 5,955,042 km (0.097 R)
• M12: 6,469,210 km (0.091 R)
• M13: 7,469,122 km (0.084 R)
• M14: 7,824,417 km (0.112 R)
• M15: 10,055,071 km (0.115 R)
• M16: 11,393,374 km (0.091 R)
• M17: 13,015,464 km (0.081 R)
• M18: 15,158,453 km (0.072 R)
• M19: 15,473,656 km (0.094 R)
• M20: 18,439,134 km (0.108 R)
• M21: 18,870,874 km (0.088 R)
• M22: 19,235,743 km (0.08 R)
• M23: 19,829,497 km (0.078 R)
• M24: 20,511,813 km (0.1 R)
• M25: 22,327,033 km (0.117 R)
• M26: 23,905,141 km (0.118 R)
• M27: 26,912,807 km (0.052 R)
• M28: 29,669,895 km (0.116 R)
• M29: 30,362,683 km (0.065 R)
• M30: 32,297,283 km (0.103 R)
• M31: 33,881,524 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.1

Radius: 7.2

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.18 AU - 9.32 AU

Year: 13931 Days

Day: 22.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,241,849 km

• M1: 93,648 km (0.104 R)
• M2: 555,906 km (0.06 R)
• M3: 880,234 km (0.097 R)
• M4: 1,218,325 km (0.12 R)
• M5: 1,823,598 km (0.113 R)
• M6: 4,256,209 km (0.116 R)
• M7: 5,662,728 km (0.084 R)
• M8: 7,071,791 km (0.107 R)
• M9: 8,383,165 km (0.081 R)
• M10: 9,601,939 km (0.111 R)
• M11: 9,999,570 km (0.098 R)
• M12: 13,037,454 km (0.039 R)
• M13: 13,340,839 km (0.107 R)
• M14: 14,797,922 km (0.073 R)
• M15: 22,812,179 km (0.12 R)
• M16: 24,610,047 km (0.037 R)
• M17: 27,879,658 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 132.8

Radius: 7.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.04 AU - 10.47 AU

Year: 16712 Days

Day: 16.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,241,849 km

• M1: 90,806 km (0.094 R)
• M2: 374,144 km (0.09 R)
• M3: 1,173,894 km (0.1 R)
• M4: 1,863,092 km (0.059 R)
• M5: 2,510,103 km (0.084 R)
• M6: 3,858,877 km (0.038 R)
• M7: 19,161,842 km (0.089 R)
• M8: 22,538,415 km (0.086 R)
• M9: 24,111,736 km (0.112 R)
• M10: 24,366,651 km (0.113 R)
• M11: 31,746,463 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.9

Radius: 3.1

Gravity: 78.66 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 9.61 AU - 10.27 AU

Year: 20235 Days

Day: 22.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 79,241,849 km

• M1: 38,746 km (0.081 R)
• M2: 197,020 km (0.084 R)
• M3: 311,313 km (0.117 R)
• M4: 1,305,989 km (0.1 R)
• M5: 1,546,094 km (0.098 R)
• M6: 2,330,286 km (0.107 R)
• M7: 3,151,578 km (0.093 R)
• M8: 3,290,854 km (0.097 R)
• M9: 3,405,296 km (0.049 R)
• M10: 3,612,041 km (0.074 R)
• M11: 5,378,343 km (0.045 R)
• M12: 7,548,559 km (0.112 R)
• M13: 8,688,794 km (0.065 R)
• M14: 9,879,743 km (0.06 R)
• M15: 11,763,479 km (0.079 R)
• M16: 13,216,074 km (0.078 R)
• M17: 14,476,137 km (0.11 R)
• M18: 18,551,931 km (0.104 R)
• M19: 19,843,110 km (0.115 R)
• M20: 23,753,449 km (0.101 R)
• M21: 24,397,318 km (0.112 R)
• M22: 24,832,947 km (0.091 R)
• M23: 27,321,807 km (0.08 R)
• M24: 31,874,070 km (0.063 R)
• M25: 32,133,623 km (0.115 R)
• M26: 33,855,045 km (0.115 R)
• M27: 39,237,278 km (0.041 R)
• M28: 39,985,416 km (0.106 R)
• M29: 44,029,047 km (0.071 R)
• M30: 45,489,870 km (0.046 R)
• M31: 49,369,242 km (0.105 R)
• M32: 53,829,652 km (0.11 R)
• M33: 56,441,033 km (0.083 R)
• M34: 57,393,672 km (0.03 R)
• M35: 59,723,808 km (0.083 R)
• M36: 61,111,777 km (0.113 R)
• M37: 64,364,783 km (0.069 R)
• M38: 64,987,260 km (0.026 R)
• M39: 66,666,945 km (0.058 R)
• M40: 67,091,354 km (0.109 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 14,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit