🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.65 AU - 0.65 AU

Year: 338 Days

Day: 25.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,957,706 km

• M1: 269,276 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.4

Radius: 9.9

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.11 AU - 1.15 AU

Year: 776 Days

Day: 5.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,957,706 km

• M1: 123,867 km (0.075 R)
• M2: 639,531 km (0.027 R)
• M3: 1,074,861 km (0.033 R)
• M4: 1,810,882 km (0.093 R)
• M5: 2,197,593 km (0.106 R)
• M6: 2,864,500 km (0.109 R)
• M7: 3,302,971 km (0.113 R)
• M8: 3,619,820 km (0.111 R)
• M9: 5,396,294 km (0.119 R)
• M10: 5,838,057 km (0.113 R)
• M11: 6,484,918 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.8

Radius: 10

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.19 AU - 1.67 AU

Year: 1104 Days

Day: 8.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,957,706 km

• M1: 124,316 km (0.071 R)
• M2: 619,934 km (0.081 R)
• M3: 971,189 km (0.057 R)
• M4: 1,536,520 km (0.115 R)
• M5: 2,446,075 km (0.095 R)
• M6: 2,805,409 km (0.114 R)
• M7: 3,278,886 km (0.112 R)
• M8: 3,668,289 km (0.092 R)
• M9: 4,168,395 km (0.114 R)
• M10: 4,875,544 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868

Radius: 8.4

Gravity: 12.3 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.38 AU - 4.16 AU

Year: 4726 Days

Day: 8.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,957,706 km

• M1: 104,569 km (0.061 R)
• M2: 386,710 km (0.069 R)
• M3: 785,688 km (0.117 R)
• M4: 1,066,334 km (0.112 R)
• M5: 1,519,765 km (0.109 R)
• M6: 2,127,132 km (0.067 R)
• M7: 2,598,365 km (0.075 R)
• M8: 3,932,030 km (0.096 R)
• M9: 7,580,274 km (0.118 R)
• M10: 8,174,177 km (0.08 R)
• M11: 9,412,548 km (0.065 R)
• M12: 9,708,752 km (0.118 R)
• M13: 10,544,107 km (0.099 R)
• M14: 12,918,823 km (0.091 R)
• M15: 13,983,212 km (0.089 R)
• M16: 14,705,620 km (0.112 R)
• M17: 16,225,086 km (0.048 R)
• M18: 18,497,777 km (0.112 R)
• M19: 18,762,715 km (0.109 R)
• M20: 21,994,926 km (0.088 R)
• M21: 23,664,438 km (0.119 R)
• M22: 24,450,575 km (0.061 R)
• M23: 26,241,262 km (0.101 R)
• M24: 26,998,377 km (0.092 R)
• M25: 30,448,403 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.4

Radius: 9.8

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.68 AU - 4.76 AU

Year: 5597 Days

Day: 9 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,957,706 km

• M1: 121,922 km (0.072 R)
• M2: 447,597 km (0.11 R)
• M3: 774,468 km (0.108 R)
• M4: 1,508,844 km (0.079 R)
• M5: 1,878,201 km (0.117 R)
• M6: 2,307,846 km (0.036 R)
• M7: 2,690,817 km (0.059 R)
• M8: 3,366,550 km (0.076 R)
• M9: 3,861,570 km (0.066 R)
• M10: 5,025,591 km (0.118 R)
• M11: 8,465,893 km (0.07 R)
• M12: 9,339,993 km (0.034 R)
• M13: 10,880,852 km (0.108 R)
• M14: 11,913,526 km (0.088 R)
• M15: 14,172,753 km (0.082 R)
• M16: 16,262,186 km (0.091 R)
• M17: 20,600,076 km (0.039 R)
• M18: 21,491,380 km (0.077 R)
• M19: 23,350,881 km (0.037 R)
• M20: 26,771,586 km (0.101 R)
• M21: 34,381,630 km (0.105 R)
• M22: 34,692,195 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.5

Radius: 8.7

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.42 AU - 5.14 AU

Year: 5717 Days

Day: 8.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,957,706 km

• M1: 109,506 km (0.114 R)
• M2: 472,879 km (0.073 R)
• M3: 1,016,368 km (0.085 R)
• M4: 1,377,497 km (0.105 R)
• M5: 1,809,835 km (0.082 R)
• M6: 2,266,258 km (0.104 R)
• M7: 3,582,271 km (0.091 R)
• M8: 4,157,624 km (0.083 R)
• M9: 4,531,619 km (0.101 R)
• M10: 5,176,685 km (0.12 R)
• M11: 5,521,508 km (0.1 R)
• M12: 6,817,025 km (0.12 R)
• M13: 7,161,549 km (0.043 R)
• M14: 7,663,450 km (0.109 R)
• M15: 8,112,244 km (0.112 R)
• M16: 12,306,519 km (0.101 R)
• M17: 13,026,983 km (0.083 R)
• M18: 13,451,093 km (0.046 R)
• M19: 13,829,725 km (0.118 R)
• M20: 18,810,885 km (0.089 R)
• M21: 20,256,000 km (0.095 R)
• M22: 25,855,748 km (0.06 R)
• M23: 26,525,946 km (0.062 R)
• M24: 30,699,278 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.7

Radius: 13.1

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.29 AU - 4.61 AU

Year: 6061 Days

Day: 11.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,957,706 km

• M1: 212,279 km (0.077 R)
• M2: 633,098 km (0.114 R)
• M3: 1,366,427 km (0.073 R)
• M4: 1,879,996 km (0.053 R)
• M5: 3,834,343 km (0.066 R)
• M6: 5,589,575 km (0.033 R)
• M7: 8,274,258 km (0.092 R)
• M8: 8,813,110 km (0.025 R)
• M9: 11,628,841 km (0.103 R)
• M10: 12,604,069 km (0.109 R)
• M11: 13,633,153 km (0.107 R)
• M12: 14,941,237 km (0.112 R)
• M13: 15,395,266 km (0.098 R)
• M14: 17,181,016 km (0.118 R)
• M15: 17,742,607 km (0.08 R)
• M16: 18,187,960 km (0.119 R)
• M17: 19,434,409 km (0.052 R)
• M18: 20,044,319 km (0.081 R)
• M19: 21,160,320 km (0.104 R)
• M20: 23,061,409 km (0.055 R)
• M21: 25,393,491 km (0.046 R)
• M22: 27,200,932 km (0.08 R)
• M23: 29,712,531 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 302.4

Radius: 6.9

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 6.24 AU - 6.34 AU

Year: 10186 Days

Day: 20.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,957,706 km

• M1: 85,869 km (0.108 R)
• M2: 300,841 km (0.108 R)
• M3: 704,307 km (0.089 R)
• M4: 994,227 km (0.069 R)
• M5: 1,953,000 km (0.063 R)
• M6: 2,427,375 km (0.116 R)
• M7: 3,099,219 km (0.087 R)
• M8: 3,422,500 km (0.064 R)
• M9: 3,864,263 km (0.095 R)
• M10: 5,667,515 km (0.097 R)
• M11: 6,805,207 km (0.113 R)
• M12: 7,733,761 km (0.098 R)
• M13: 8,127,952 km (0.116 R)
• M14: 9,347,025 km (0.11 R)
• M15: 9,885,577 km (0.094 R)
• M16: 13,559,850 km (0.108 R)
• M17: 14,366,931 km (0.086 R)
• M18: 14,603,295 km (0.117 R)
• M19: 17,178,323 km (0.077 R)
• M20: 24,192,668 km (0.1 R)
• M21: 25,550,568 km (0.11 R)
• M22: 29,450,136 km (0.05 R)
• M23: 33,005,928 km (0.112 R)
• M24: 35,421,335 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648

Radius: 4.4

Gravity: 33.47 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.66 AU - 8.14 AU

Year: 14337 Days

Day: 17.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,957,706 km

• M1: 55,351 km (0.099 R)
• M2: 229,483 km (0.068 R)
• M3: 735,573 km (0.11 R)
• M4: 1,231,190 km (0.115 R)
• M5: 1,652,458 km (0.091 R)
• M6: 1,835,416 km (0.101 R)
• M7: 2,013,288 km (0.098 R)
• M8: 3,082,315 km (0.063 R)
• M9: 3,412,926 km (0.107 R)
• M10: 7,616,327 km (0.039 R)
• M11: 7,844,464 km (0.081 R)
• M12: 8,219,057 km (0.102 R)
• M13: 8,507,781 km (0.098 R)
• M14: 8,803,236 km (0.094 R)
• M15: 16,469,678 km (0.058 R)
• M16: 18,032,079 km (0.087 R)
• M17: 18,766,305 km (0.118 R)
• M18: 19,015,385 km (0.077 R)
• M19: 19,605,250 km (0.099 R)
• M20: 21,357,639 km (0.107 R)
• M21: 22,364,732 km (0.042 R)
• M22: 25,473,525 km (0.109 R)
• M23: 28,858,476 km (0.088 R)
• M24: 30,315,261 km (0.109 R)
• M25: 30,888,370 km (0.058 R)
• M26: 34,853,312 km (0.083 R)
• M27: 35,229,700 km (0.076 R)
• M28: 37,940,862 km (0.078 R)
• M29: 40,235,095 km (0.106 R)
• M30: 53,268,810 km (0.099 R)
• M31: 54,945,652 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.9

Radius: 7.9

Gravity: 13.36 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.05 AU - 9.45 AU

Year: 15300 Days

Day: 17.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,957,706 km

• M1: 118,631 km (0.1 R)
• M2: 735,722 km (0.077 R)
• M3: 1,158,486 km (0.096 R)
• M4: 1,448,855 km (0.113 R)
• M5: 1,753,287 km (0.059 R)
• M6: 3,940,707 km (0.075 R)
• M7: 5,455,984 km (0.116 R)
• M8: 6,240,774 km (0.078 R)
• M9: 6,574,976 km (0.038 R)
• M10: 7,009,558 km (0.101 R)
• M11: 8,081,875 km (0.046 R)
• M12: 8,941,914 km (0.109 R)
• M13: 11,512,005 km (0.106 R)
• M14: 12,599,282 km (0.109 R)
• M15: 13,338,445 km (0.089 R)
• M16: 16,271,012 km (0.074 R)
• M17: 21,061,136 km (0.11 R)
• M18: 21,624,223 km (0.086 R)
• M19: 23,977,696 km (0.098 R)
• M20: 25,744,597 km (0.03 R)
• M21: 28,612,089 km (0.103 R)
• M22: 33,175,871 km (0.113 R)
• M23: 41,479,002 km (0.079 R)
• M24: 49,567,758 km (0.052 R)
• M25: 62,608,205 km (0.059 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 11,413 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit