🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.7

Radius: 8.5

Gravity: 12.69 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.74 AU - 0.86 AU

Year: 477 Days

Day: 9.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,043,643 km

• M1: 106,065 km (0.037 R)
• M2: 441,164 km (0.047 R)
• M3: 746,045 km (0.096 R)
• M4: 1,101,639 km (0.064 R)
• M5: 1,659,040 km (0.044 R)
• M6: 1,993,691 km (0.051 R)
• M7: 2,305,303 km (0.101 R)
• M8: 2,756,939 km (0.11 R)
• M9: 3,479,646 km (0.08 R)
• M10: 3,990,374 km (0.111 R)
• M11: 4,550,169 km (0.055 R)
• M12: 5,094,406 km (0.12 R)
• M13: 6,566,299 km (0.062 R)
• M14: 6,867,141 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 12.7

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.89 AU - 0.95 AU

Year: 588 Days

Day: 13 Hours

Environment

Temp: -177 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 78,043,643 km

• M1: 158,125 km (0.089 R)
• M2: 583,432 km (0.106 R)
• M3: 1,311,076 km (0.117 R)
• M4: 2,363,796 km (0.067 R)
• M5: 2,845,501 km (0.092 R)
• M6: 3,673,226 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.6

Radius: 8.2

Gravity: 12.26 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.62 AU - 1.96 AU

Year: 1597 Days

Day: 6.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 135.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,043,643 km

• M1: 102,026 km (0.088 R)
• M2: 401,969 km (0.056 R)
• M3: 657,483 km (0.09 R)
• M4: 1,027,737 km (0.105 R)
• M5: 1,424,471 km (0.112 R)
• M6: 1,760,917 km (0.109 R)
• M7: 2,308,744 km (0.111 R)
• M8: 3,811,754 km (0.102 R)
• M9: 4,505,738 km (0.098 R)
• M10: 5,041,897 km (0.091 R)
• M11: 5,325,535 km (0.112 R)
• M12: 5,924,973 km (0.106 R)
• M13: 6,749,706 km (0.116 R)
• M14: 7,014,195 km (0.105 R)
• M15: 9,224,654 km (0.087 R)
• M16: 10,191,654 km (0.082 R)
• M17: 10,789,148 km (0.101 R)
• M18: 11,372,729 km (0.103 R)
• M19: 12,248,026 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.8

Radius: 9.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.57 AU - 3.63 AU

Year: 3640 Days

Day: 10.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,043,643 km

• M1: 134,638 km (0.103 R)
• M2: 682,914 km (0.115 R)
• M3: 1,045,240 km (0.12 R)
• M4: 1,759,271 km (0.093 R)
• M5: 2,153,162 km (0.069 R)
• M6: 2,989,863 km (0.111 R)
• M7: 3,341,568 km (0.081 R)
• M8: 4,545,681 km (0.056 R)
• M9: 4,967,098 km (0.086 R)
• M10: 5,888,471 km (0.04 R)
• M11: 7,035,139 km (0.098 R)
• M12: 7,784,924 km (0.108 R)
• M13: 8,653,339 km (0.046 R)
• M14: 9,407,761 km (0.108 R)
• M15: 12,059,683 km (0.071 R)
• M16: 13,444,061 km (0.117 R)
• M17: 13,989,645 km (0.026 R)
• M18: 14,787,750 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.1

Radius: 8.2

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.83 AU - 3.71 AU

Year: 3943 Days

Day: 13.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,043,643 km

• M1: 133,740 km (0.116 R)
• M2: 411,843 km (0.078 R)
• M3: 984,952 km (0.1 R)
• M4: 1,252,583 km (0.109 R)
• M5: 1,580,502 km (0.118 R)
• M6: 2,487,813 km (0.09 R)
• M7: 3,189,576 km (0.044 R)
• M8: 5,029,630 km (0.101 R)
• M9: 5,411,254 km (0.12 R)
• M10: 6,175,101 km (0.106 R)
• M11: 12,888,754 km (0.098 R)
• M12: 15,271,250 km (0.056 R)
• M13: 17,991,238 km (0.117 R)
• M14: 19,932,420 km (0.091 R)
• M15: 20,759,397 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.7

Radius: 8.4

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.75 AU - 6.05 AU

Year: 8368 Days

Day: 9.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 78,043,643 km

• M1: 104,569 km (0.1 R)
• M2: 393,891 km (0.057 R)
• M3: 774,917 km (0.119 R)
• M4: 1,324,689 km (0.053 R)
• M5: 1,763,908 km (0.08 R)
• M6: 2,114,117 km (0.113 R)
• M7: 2,474,050 km (0.118 R)
• M8: 3,685,493 km (0.117 R)
• M9: 3,954,021 km (0.115 R)
• M10: 4,530,572 km (0.089 R)
• M11: 5,753,385 km (0.062 R)
• M12: 6,183,478 km (0.078 R)
• M13: 6,528,750 km (0.066 R)
• M14: 8,410,691 km (0.104 R)
• M15: 9,096,598 km (0.078 R)
• M16: 11,532,949 km (0.119 R)
• M17: 12,379,224 km (0.079 R)
• M18: 12,817,546 km (0.093 R)
• M19: 13,152,944 km (0.09 R)
• M20: 13,551,922 km (0.12 R)
• M21: 14,735,989 km (0.106 R)
• M22: 15,541,723 km (0.119 R)
• M23: 18,135,600 km (0.106 R)
• M24: 22,749,947 km (0.103 R)
• M25: 23,242,273 km (0.095 R)
• M26: 24,163,198 km (0.113 R)
• M27: 26,707,558 km (0.107 R)
• M28: 26,980,574 km (0.102 R)
• M29: 28,185,136 km (0.073 R)
• M30: 29,232,172 km (0.086 R)
• M31: 30,206,204 km (0.098 R)
• M32: 32,840,024 km (0.084 R)
• M33: 36,286,908 km (0.115 R)
• M34: 38,212,682 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.4

Radius: 3.3

Gravity: 56.69 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.31 AU - 8.35 AU

Year: 11903 Days

Day: 15.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 78,043,643 km

• M1: 42,486 km (0.115 R)
• M2: 150,047 km (0.087 R)
• M3: 310,116 km (0.118 R)
• M4: 426,354 km (0.083 R)
• M5: 673,340 km (0.109 R)
• M6: 1,019,061 km (0.053 R)
• M7: 1,295,218 km (0.105 R)
• M8: 1,959,882 km (0.07 R)
• M9: 2,847,595 km (0.117 R)
• M10: 3,341,717 km (0.117 R)
• M11: 3,648,542 km (0.101 R)
• M12: 5,265,546 km (0.079 R)
• M13: 6,117,057 km (0.104 R)
• M14: 6,343,399 km (0.082 R)
• M15: 8,042,830 km (0.095 R)
• M16: 9,069,072 km (0.028 R)
• M17: 9,816,911 km (0.112 R)
• M18: 9,971,147 km (0.103 R)
• M19: 10,127,177 km (0.047 R)
• M20: 13,220,562 km (0.107 R)
• M21: 14,509,797 km (0.031 R)
• M22: 15,460,491 km (0.1 R)
• M23: 15,809,802 km (0.1 R)
• M24: 18,248,846 km (0.053 R)
• M25: 18,638,997 km (0.116 R)
• M26: 18,875,661 km (0.039 R)
• M27: 19,355,272 km (0.104 R)
• M28: 20,089,648 km (0.106 R)
• M29: 23,763,622 km (0.046 R)
• M30: 27,964,031 km (0.088 R)
• M31: 30,401,578 km (0.096 R)
• M32: 30,619,991 km (0.092 R)
• M33: 33,323,225 km (0.088 R)
• M34: 38,940,775 km (0.081 R)
• M35: 41,837,438 km (0.071 R)
• M36: 42,651,550 km (0.094 R)
• M37: 44,171,614 km (0.051 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.5

Radius: 6.5

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 7.21 AU - 10.57 AU

Year: 17676 Days

Day: 18.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,043,643 km

• M1: 81,082 km (0.104 R)
• M2: 435,479 km (0.109 R)
• M3: 645,216 km (0.063 R)
• M4: 1,607,878 km (0.111 R)
• M5: 1,985,762 km (0.077 R)
• M6: 2,586,248 km (0.116 R)
• M7: 3,323,317 km (0.118 R)
• M8: 3,597,829 km (0.115 R)
• M9: 4,324,276 km (0.109 R)
• M10: 5,481,266 km (0.118 R)
• M11: 6,370,476 km (0.079 R)
• M12: 9,030,625 km (0.043 R)
• M13: 14,164,076 km (0.051 R)
• M14: 15,825,360 km (0.117 R)
• M15: 26,558,708 km (0.114 R)
• M16: 28,975,612 km (0.12 R)
• M17: 29,456,718 km (0.096 R)
• M18: 29,943,061 km (0.11 R)
• M19: 31,941,988 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.3

Radius: 4

Gravity: 36.21 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 10.39 AU - 10.55 AU

Year: 22592 Days

Day: 15.3 Hours

Environment

Temp: -243 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 78,043,643 km

• M1: 49,816 km (0.103 R)
• M2: 282,590 km (0.031 R)
• M3: 426,204 km (0.043 R)
• M4: 645,964 km (0.112 R)
• M5: 835,803 km (0.105 R)
• M6: 962,064 km (0.096 R)
• M7: 1,602,044 km (0.058 R)
• M8: 2,801,968 km (0.119 R)
• M9: 3,034,742 km (0.073 R)
• M10: 3,252,407 km (0.072 R)
• M11: 4,032,560 km (0.077 R)
• M12: 4,856,545 km (0.095 R)
• M13: 6,558,670 km (0.077 R)
• M14: 6,738,935 km (0.073 R)
• M15: 7,396,418 km (0.092 R)
• M16: 7,891,587 km (0.077 R)
• M17: 8,514,512 km (0.103 R)
• M18: 9,624,529 km (0.093 R)
• M19: 11,400,255 km (0.116 R)
• M20: 12,330,904 km (0.059 R)
• M21: 13,383,175 km (0.081 R)
• M22: 14,954,551 km (0.033 R)
• M23: 15,346,198 km (0.096 R)
• M24: 18,909,021 km (0.116 R)
• M25: 19,738,242 km (0.103 R)
• M26: 22,986,162 km (0.099 R)
• M27: 25,118,530 km (0.057 R)
• M28: 30,142,026 km (0.057 R)
• M29: 34,287,234 km (0.074 R)
• M30: 35,379,747 km (0.109 R)
• M31: 39,386,576 km (0.05 R)
• M32: 44,003,914 km (0.093 R)
• M33: 45,783,531 km (0.047 R)
• M34: 46,277,054 km (0.108 R)
• M35: 46,607,965 km (0.118 R)
• M36: 65,869,438 km (0.09 R)
• M37: 71,895,241 km (0.088 R)
• M38: 72,561,849 km (0.093 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 16,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit