🌌 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: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.6 AU - 0.7 AU

Year: 344 Days

Day: 40.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.1

Radius: 11

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.69 AU - 0.73 AU

Year: 392 Days

Day: 8.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,125,271 km

• M1: 137,331 km (0.043 R)
• M2: 524,640 km (0.105 R)
• M3: 906,862 km (0.047 R)
• M4: 1,504,805 km (0.076 R)
• M5: 1,884,484 km (0.082 R)
• M6: 2,289,595 km (0.117 R)
• M7: 2,735,547 km (0.069 R)
• M8: 3,083,661 km (0.11 R)
• M9: 3,629,843 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.3

Radius: 12.9

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.62 AU - 1.88 AU

Year: 1519 Days

Day: 12.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,125,271 km

• M1: 160,519 km (0.055 R)
• M2: 605,722 km (0.093 R)
• M3: 1,013,376 km (0.119 R)
• M4: 1,442,722 km (0.103 R)
• M5: 2,016,280 km (0.119 R)
• M6: 2,461,334 km (0.11 R)
• M7: 2,919,402 km (0.059 R)
• M8: 3,553,847 km (0.115 R)
• M9: 4,059,637 km (0.11 R)
• M10: 5,080,942 km (0.1 R)
• M11: 5,894,904 km (0.103 R)
• M12: 7,577,581 km (0.036 R)
• M13: 8,284,730 km (0.095 R)
• M14: 9,531,180 km (0.109 R)
• M15: 9,952,896 km (0.097 R)
• M16: 10,481,874 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.8

Radius: 11

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.69 AU - 2.07 AU

Year: 1691 Days

Day: 9.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,125,271 km

• M1: 136,732 km (0.115 R)
• M2: 493,523 km (0.096 R)
• M3: 1,233,883 km (0.088 R)
• M4: 2,299,170 km (0.107 R)
• M5: 2,779,977 km (0.085 R)
• M6: 3,657,967 km (0.088 R)
• M7: 4,060,685 km (0.103 R)
• M8: 4,823,484 km (0.036 R)
• M9: 5,229,343 km (0.072 R)
• M10: 5,700,128 km (0.102 R)
• M11: 6,066,044 km (0.096 R)
• M12: 7,087,050 km (0.112 R)
• M13: 7,511,010 km (0.116 R)
• M14: 9,378,739 km (0.092 R)
• M15: 10,106,533 km (0.061 R)
• M16: 11,101,658 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.1

Radius: 14.9

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.02 AU - 2.24 AU

Year: 2039 Days

Day: 8.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,125,271 km

• M1: 186,549 km (0.111 R)
• M2: 823,686 km (0.1 R)
• M3: 2,212,104 km (0.104 R)
• M4: 2,854,178 km (0.104 R)
• M5: 3,774,055 km (0.086 R)
• M6: 4,247,084 km (0.113 R)
• M7: 5,607,676 km (0.075 R)
• M8: 6,998,787 km (0.066 R)
• M9: 7,491,712 km (0.095 R)
• M10: 8,126,007 km (0.082 R)
• M11: 8,671,291 km (0.103 R)
• M12: 10,992,751 km (0.117 R)
• M13: 14,346,585 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.1

Radius: 12.8

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.04 AU - 4.38 AU

Year: 5667 Days

Day: 8.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,125,271 km

• M1: 159,920 km (0.038 R)
• M2: 585,975 km (0.078 R)
• M3: 1,344,586 km (0.076 R)
• M4: 1,888,374 km (0.104 R)
• M5: 2,462,381 km (0.035 R)
• M6: 3,209,174 km (0.099 R)
• M7: 4,313,655 km (0.026 R)
• M8: 6,010,394 km (0.071 R)
• M9: 6,664,585 km (0.06 R)
• M10: 8,566,572 km (0.081 R)
• M11: 9,153,894 km (0.057 R)
• M12: 10,106,533 km (0.091 R)
• M13: 10,762,669 km (0.12 R)
• M14: 11,307,804 km (0.089 R)
• M15: 14,207,609 km (0.12 R)
• M16: 15,656,016 km (0.097 R)
• M17: 17,017,356 km (0.091 R)
• M18: 18,136,797 km (0.029 R)
• M19: 19,040,817 km (0.103 R)
• M20: 21,575,005 km (0.12 R)
• M21: 26,970,701 km (0.093 R)
• M22: 28,233,905 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.9

Radius: 6

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.39 AU - 8.55 AU

Year: 12071 Days

Day: 24.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,125,271 km

• M1: 74,649 km (0.071 R)
• M2: 382,223 km (0.109 R)
• M3: 611,257 km (0.092 R)
• M4: 889,808 km (0.067 R)
• M5: 1,107,922 km (0.083 R)
• M6: 1,373,009 km (0.042 R)
• M7: 1,885,681 km (0.08 R)
• M8: 2,108,133 km (0.108 R)
• M9: 2,381,299 km (0.104 R)
• M10: 3,517,944 km (0.079 R)
• M11: 4,167,797 km (0.112 R)
• M12: 4,443,954 km (0.071 R)
• M13: 4,840,090 km (0.087 R)
• M14: 5,145,419 km (0.076 R)
• M15: 6,529,947 km (0.107 R)
• M16: 7,470,768 km (0.078 R)
• M17: 9,488,843 km (0.097 R)
• M18: 15,793,945 km (0.092 R)
• M19: 16,903,213 km (0.029 R)
• M20: 17,284,239 km (0.118 R)
• M21: 18,595,763 km (0.083 R)
• M22: 19,691,568 km (0.119 R)
• M23: 23,003,814 km (0.05 R)
• M24: 23,708,121 km (0.088 R)
• M25: 26,840,700 km (0.112 R)
• M26: 27,359,356 km (0.047 R)
• M27: 30,053,015 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 479.3

Radius: 6

Gravity: 13.31 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.74 AU - 7.86 AU

Year: 12939 Days

Day: 17.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,125,271 km

• M1: 97,687 km (0.079 R)
• M2: 340,335 km (0.032 R)
• M3: 562,189 km (0.093 R)
• M4: 834,906 km (0.051 R)
• M5: 1,067,680 km (0.116 R)
• M6: 1,369,868 km (0.064 R)
• M7: 1,592,320 km (0.117 R)
• M8: 2,651,024 km (0.087 R)
• M9: 3,920,511 km (0.109 R)
• M10: 9,616,450 km (0.117 R)
• M11: 11,470,417 km (0.05 R)
• M12: 12,099,177 km (0.075 R)
• M13: 12,511,020 km (0.079 R)
• M14: 19,221,980 km (0.079 R)
• M15: 20,108,048 km (0.09 R)
• M16: 20,685,945 km (0.103 R)
• M17: 26,689,607 km (0.063 R)
• M18: 31,609,581 km (0.114 R)
• M19: 35,284,453 km (0.108 R)
• M20: 35,763,017 km (0.057 R)
• M21: 38,979,221 km (0.066 R)
• M22: 40,265,912 km (0.103 R)
• M23: 41,183,247 km (0.114 R)
• M24: 44,573,434 km (0.05 R)
• M25: 48,881,553 km (0.117 R)
• M26: 49,327,056 km (0.06 R)
• M27: 50,528,326 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 875.8

Radius: 3.1

Gravity: 91.13 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 8.46 AU - 9.08 AU

Year: 17038 Days

Day: 16.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,125,271 km

• M1: 38,596 km (0.115 R)
• M2: 157,377 km (0.118 R)
• M3: 314,754 km (0.089 R)
• M4: 605,572 km (0.118 R)
• M5: 906,114 km (0.106 R)
• M6: 1,254,079 km (0.065 R)
• M7: 1,755,681 km (0.074 R)
• M8: 1,942,828 km (0.092 R)
• M9: 2,269,699 km (0.112 R)
• M10: 2,492,001 km (0.116 R)
• M11: 3,356,976 km (0.071 R)
• M12: 3,557,288 km (0.097 R)
• M13: 4,012,963 km (0.063 R)
• M14: 6,574,826 km (0.072 R)
• M15: 8,553,109 km (0.081 R)
• M16: 8,872,351 km (0.073 R)
• M17: 12,245,184 km (0.09 R)
• M18: 18,674,003 km (0.086 R)
• M19: 22,952,053 km (0.108 R)
• M20: 26,924,176 km (0.035 R)
• M21: 30,956,736 km (0.081 R)
• M22: 31,960,687 km (0.099 R)
• M23: 32,470,816 km (0.08 R)
• M24: 32,986,330 km (0.11 R)
• M25: 35,373,464 km (0.106 R)
• M26: 38,444,558 km (0.102 R)
• M27: 38,588,172 km (0.066 R)
• M28: 49,389,438 km (0.119 R)
• M29: 51,977,182 km (0.056 R)
• M30: 53,393,574 km (0.101 R)
• M31: 63,232,626 km (0.072 R)
• M32: 64,440,180 km (0.084 R)
• M33: 67,317,247 km (0.038 R)
• M34: 72,446,658 km (0.113 R)
• M35: 73,105,487 km (0.113 R)
• M36: 73,325,995 km (0.027 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.1

Radius: 4.2

Gravity: 44.45 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 9.32 AU - 11.8 AU

Year: 22512 Days

Day: 18.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 86,125,271 km

• M1: 52,359 km (0.105 R)
• M2: 378,931 km (0.098 R)
• M3: 624,122 km (0.111 R)
• M4: 1,197,980 km (0.08 R)
• M5: 1,429,707 km (0.1 R)
• M6: 1,565,093 km (0.075 R)
• M7: 3,259,289 km (0.092 R)
• M8: 3,465,135 km (0.101 R)
• M9: 5,855,261 km (0.096 R)
• M10: 6,474,895 km (0.059 R)
• M11: 7,895,626 km (0.112 R)
• M12: 9,103,180 km (0.077 R)
• M13: 9,811,227 km (0.112 R)
• M14: 10,940,990 km (0.082 R)
• M15: 11,269,656 km (0.119 R)
• M16: 12,295,000 km (0.06 R)
• M17: 15,494,300 km (0.101 R)
• M18: 16,846,067 km (0.067 R)
• M19: 20,466,784 km (0.083 R)
• M20: 22,827,887 km (0.113 R)
• M21: 25,364,618 km (0.079 R)
• M22: 26,055,910 km (0.111 R)
• M23: 27,476,192 km (0.07 R)
• M24: 28,947,188 km (0.083 R)
• M25: 32,178,801 km (0.103 R)
• M26: 36,509,809 km (0.105 R)
• M27: 46,647,309 km (0.111 R)
• M28: 47,684,022 km (0.065 R)
• M29: 50,704,553 km (0.101 R)
• M30: 51,984,512 km (0.108 R)
• M31: 58,110,694 km (0.109 R)
• M32: 59,512,127 km (0.117 R)
• M33: 64,487,603 km (0.114 R)
• M34: 65,128,480 km (0.061 R)
• M35: 67,295,106 km (0.034 R)
• M36: 72,000,408 km (0.101 R)
• M37: 74,082,362 km (0.061 R)
• M38: 75,020,490 km (0.068 R)
• M39: 75,729,135 km (0.115 R)
• M40: 78,608,744 km (0.116 R)
• M41: 79,339,829 km (0.04 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 20,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit