🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.55 AU - 0.65 AU

Year: 305 Days

Day: 20.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,287,781 km

• M1: 38,297 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.6

Radius: 14.4

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.88 AU - 0.98 AU

Year: 588 Days

Day: 13.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,287,781 km

• M1: 179,517 km (0.106 R)
• M2: 634,145 km (0.076 R)
• M3: 1,120,937 km (0.096 R)
• M4: 1,699,282 km (0.085 R)
• M5: 2,286,005 km (0.064 R)
• M6: 2,924,938 km (0.047 R)
• M7: 3,933,078 km (0.113 R)
• M8: 4,775,164 km (0.054 R)
• M9: 5,318,803 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.3

Radius: 9.7

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.16 AU - 1.6 AU

Year: 1063 Days

Day: 5.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,287,781 km

• M1: 120,725 km (0.096 R)
• M2: 535,261 km (0.119 R)
• M3: 864,526 km (0.084 R)
• M4: 1,186,012 km (0.083 R)
• M5: 1,519,914 km (0.119 R)
• M6: 2,313,980 km (0.115 R)
• M7: 3,130,784 km (0.058 R)
• M8: 3,513,456 km (0.073 R)
• M9: 3,828,808 km (0.083 R)
• M10: 4,197,716 km (0.093 R)
• M11: 5,205,108 km (0.084 R)
• M12: 5,658,988 km (0.086 R)
• M13: 6,528,451 km (0.044 R)
• M14: 7,956,064 km (0.085 R)
• M15: 9,281,351 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.1

Radius: 14.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.34 AU - 3.7 AU

Year: 3443 Days

Day: 8.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 46,287,781 km

• M1: 183,407 km (0.06 R)
• M2: 679,474 km (0.108 R)
• M3: 1,366,277 km (0.119 R)
• M4: 1,986,510 km (0.112 R)
• M5: 2,889,184 km (0.111 R)
• M6: 3,500,889 km (0.088 R)
• M7: 4,262,343 km (0.067 R)
• M8: 5,714,489 km (0.089 R)
• M9: 7,195,358 km (0.104 R)
• M10: 8,742,500 km (0.098 R)
• M11: 9,954,841 km (0.102 R)
• M12: 11,193,361 km (0.109 R)
• M13: 11,656,666 km (0.089 R)
• M14: 12,487,383 km (0.109 R)
• M15: 13,032,219 km (0.066 R)
• M16: 14,712,502 km (0.078 R)
• M17: 15,269,305 km (0.054 R)
• M18: 16,587,262 km (0.108 R)
• M19: 17,526,139 km (0.081 R)
• M20: 18,852,174 km (0.117 R)
• M21: 19,509,657 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.7

Radius: 8.9

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.44 AU - 4.07 AU

Year: 4764 Days

Day: 10.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,287,781 km

• M1: 110,702 km (0.084 R)
• M2: 561,590 km (0.07 R)
• M3: 1,020,706 km (0.053 R)
• M4: 1,819,260 km (0.077 R)
• M5: 2,148,973 km (0.073 R)
• M6: 3,488,174 km (0.07 R)
• M7: 4,942,265 km (0.07 R)
• M8: 6,203,225 km (0.102 R)
• M9: 6,636,012 km (0.074 R)
• M10: 7,424,842 km (0.102 R)
• M11: 8,761,498 km (0.117 R)
• M12: 11,578,875 km (0.117 R)
• M13: 12,720,008 km (0.095 R)
• M14: 16,243,337 km (0.118 R)
• M15: 17,794,068 km (0.106 R)
• M16: 19,052,186 km (0.114 R)
• M17: 26,164,219 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.6

Radius: 13.7

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.08 AU - 5.1 AU

Year: 6451 Days

Day: 6.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 89.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,287,781 km

• M1: 174,431 km (0.116 R)
• M2: 637,885 km (0.088 R)
• M3: 1,318,855 km (0.107 R)
• M4: 2,644,591 km (0.091 R)
• M5: 4,610,307 km (0.04 R)
• M6: 5,163,819 km (0.112 R)
• M7: 5,707,608 km (0.061 R)
• M8: 6,819,569 km (0.117 R)
• M9: 9,060,844 km (0.025 R)
• M10: 11,625,400 km (0.119 R)
• M11: 12,747,683 km (0.065 R)
• M12: 13,891,808 km (0.05 R)
• M13: 15,155,311 km (0.053 R)
• M14: 17,910,306 km (0.119 R)
• M15: 21,506,339 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.9

Radius: 11.1

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.61 AU - 5.63 AU

Year: 6514 Days

Day: 6.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,287,781 km

• M1: 138,228 km (0.098 R)
• M2: 684,859 km (0.037 R)
• M3: 1,065,436 km (0.118 R)
• M4: 1,710,951 km (0.077 R)
• M5: 2,094,969 km (0.094 R)
• M6: 3,134,075 km (0.09 R)
• M7: 3,715,562 km (0.113 R)
• M8: 4,785,037 km (0.072 R)
• M9: 6,726,519 km (0.111 R)
• M10: 7,250,859 km (0.031 R)
• M11: 8,757,609 km (0.067 R)
• M12: 9,145,217 km (0.072 R)
• M13: 9,503,803 km (0.056 R)
• M14: 10,122,540 km (0.1 R)
• M15: 12,380,570 km (0.089 R)
• M16: 13,627,169 km (0.081 R)
• M17: 16,252,462 km (0.027 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 13.8

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 4.34 AU - 5.48 AU

Year: 7137 Days

Day: 5.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,287,781 km

• M1: 171,589 km (0.1 R)
• M2: 672,592 km (0.098 R)
• M3: 1,254,827 km (0.106 R)
• M4: 1,937,891 km (0.037 R)
• M5: 3,108,494 km (0.076 R)
• M6: 3,715,114 km (0.116 R)
• M7: 4,276,106 km (0.117 R)
• M8: 4,866,568 km (0.106 R)
• M9: 5,658,539 km (0.079 R)
• M10: 6,371,972 km (0.107 R)
• M11: 6,835,276 km (0.06 R)
• M12: 8,207,538 km (0.105 R)
• M13: 9,584,586 km (0.093 R)
• M14: 10,418,594 km (0.073 R)
• M15: 11,252,752 km (0.109 R)
• M16: 11,931,926 km (0.115 R)
• M17: 13,054,509 km (0.063 R)
• M18: 14,246,355 km (0.09 R)
• M19: 15,216,048 km (0.102 R)
• M20: 19,747,517 km (0.117 R)
• M21: 22,282,304 km (0.091 R)
• M22: 23,432,262 km (0.085 R)
• M23: 28,608,947 km (0.031 R)
• M24: 29,875,293 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.1

Radius: 11.6

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.25 AU - 6.05 AU

Year: 8810 Days

Day: 13.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 154 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 46,287,781 km

• M1: 144,661 km (0.101 R)
• M2: 534,364 km (0.095 R)
• M3: 1,193,043 km (0.114 R)
• M4: 1,699,731 km (0.089 R)
• M5: 2,277,927 km (0.044 R)
• M6: 3,242,833 km (0.087 R)
• M7: 3,806,368 km (0.109 R)
• M8: 4,517,556 km (0.07 R)
• M9: 5,931,406 km (0.108 R)
• M10: 6,379,900 km (0.102 R)
• M11: 7,267,764 km (0.101 R)
• M12: 8,883,570 km (0.05 R)
• M13: 11,342,511 km (0.086 R)
• M14: 11,927,139 km (0.107 R)
• M15: 12,364,713 km (0.041 R)
• M16: 12,870,054 km (0.096 R)
• M17: 15,093,378 km (0.118 R)
• M18: 16,329,505 km (0.064 R)
• M19: 17,075,400 km (0.088 R)
• M20: 20,210,672 km (0.04 R)
• M21: 22,529,888 km (0.113 R)
• M22: 23,454,403 km (0.058 R)
• M23: 25,739,959 km (0.03 R)
• M24: 29,242,943 km (0.028 R)
• M25: 30,342,637 km (0.096 R)
• M26: 32,201,690 km (0.079 R)
• M27: 33,916,680 km (0.12 R)
• M28: 34,354,852 km (0.071 R)
• M29: 41,015,847 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.7

Radius: 6.3

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.53 AU - 7.45 AU

Year: 12123 Days

Day: 22.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 46,287,781 km

• M1: 78,539 km (0.063 R)
• M2: 289,771 km (0.064 R)
• M3: 544,087 km (0.037 R)
• M4: 928,554 km (0.06 R)
• M5: 1,205,310 km (0.089 R)
• M6: 1,592,469 km (0.112 R)
• M7: 1,975,889 km (0.085 R)
• M8: 2,457,145 km (0.094 R)
• M9: 2,904,592 km (0.073 R)
• M10: 3,551,005 km (0.095 R)
• M11: 3,934,723 km (0.11 R)
• M12: 4,233,321 km (0.117 R)
• M13: 5,093,508 km (0.086 R)
• M14: 5,994,237 km (0.064 R)
• M15: 6,613,273 km (0.094 R)
• M16: 9,960,077 km (0.075 R)
• M17: 10,515,534 km (0.105 R)
• M18: 10,722,577 km (0.113 R)
• M19: 13,363,428 km (0.095 R)
• M20: 13,914,248 km (0.101 R)
• M21: 18,652,162 km (0.113 R)
• M22: 20,203,492 km (0.089 R)
• M23: 21,588,170 km (0.08 R)
• M24: 25,001,544 km (0.115 R)
• M25: 28,657,567 km (0.111 R)
• M26: 29,778,803 km (0.088 R)
• M27: 33,317,839 km (0.086 R)
• M28: 34,103,079 km (0.079 R)
• M29: 37,127,499 km (0.071 R)
• M30: 38,214,626 km (0.103 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 174 - 10,295 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit