🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.4

Radius: 9.4

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.65 AU - 0.93 AU

Year: 485 Days

Day: 5.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,896,958 km

• M1: 116,986 km (0.056 R)
• M2: 421,567 km (0.097 R)
• M3: 897,886 km (0.088 R)
• M4: 1,219,372 km (0.091 R)
• M5: 1,632,262 km (0.045 R)
• M6: 2,009,548 km (0.09 R)
• M7: 2,590,886 km (0.11 R)
• M8: 2,931,819 km (0.114 R)
• M9: 3,236,999 km (0.104 R)
• M10: 3,716,759 km (0.067 R)
• M11: 4,011,766 km (0.115 R)
• M12: 4,663,414 km (0.113 R)
• M13: 4,963,508 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.1

Radius: 11.2

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.04 AU - 1.18 AU

Year: 807 Days

Day: 14.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,896,958 km

• M1: 139,276 km (0.057 R)
• M2: 521,199 km (0.099 R)
• M3: 888,013 km (0.065 R)
• M4: 1,311,525 km (0.066 R)
• M5: 1,780,663 km (0.059 R)
• M6: 2,382,196 km (0.079 R)
• M7: 2,749,609 km (0.1 R)
• M8: 3,703,445 km (0.099 R)
• M9: 4,135,783 km (0.086 R)
• M10: 5,028,433 km (0.087 R)
• M11: 5,385,224 km (0.039 R)
• M12: 7,031,250 km (0.1 R)
• M13: 8,020,241 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.6

Radius: 10.7

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.72 AU - 2.54 AU

Year: 2146 Days

Day: 12.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,896,958 km

• M1: 143,165 km (0.104 R)
• M2: 491,279 km (0.119 R)
• M3: 1,096,253 km (0.105 R)
• M4: 1,626,877 km (0.075 R)
• M5: 2,233,496 km (0.115 R)
• M6: 2,891,278 km (0.079 R)
• M7: 3,627,000 km (0.106 R)
• M8: 4,411,342 km (0.093 R)
• M9: 7,372,781 km (0.084 R)
• M10: 8,942,512 km (0.108 R)
• M11: 11,153,868 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.7

Radius: 10.7

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.46 AU - 3.32 AU

Year: 3391 Days

Day: 12.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,896,958 km

• M1: 133,292 km (0.066 R)
• M2: 990,488 km (0.076 R)
• M3: 3,454,664 km (0.12 R)
• M4: 3,974,965 km (0.088 R)
• M5: 6,022,212 km (0.095 R)
• M6: 6,509,452 km (0.047 R)
• M7: 6,899,753 km (0.03 R)
• M8: 7,595,981 km (0.086 R)
• M9: 8,835,549 km (0.045 R)
• M10: 10,857,514 km (0.106 R)
• M11: 11,450,819 km (0.074 R)
• M12: 12,426,796 km (0.116 R)
• M13: 13,265,741 km (0.092 R)
• M14: 13,796,813 km (0.052 R)
• M15: 16,834,697 km (0.095 R)
• M16: 21,455,476 km (0.047 R)
• M17: 22,662,133 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.9

Radius: 13.5

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.49 AU - 3.73 AU

Year: 3786 Days

Day: 12.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,896,958 km

• M1: 167,998 km (0.072 R)
• M2: 611,556 km (0.088 R)
• M3: 1,154,297 km (0.103 R)
• M4: 1,665,323 km (0.084 R)
• M5: 2,545,857 km (0.079 R)
• M6: 3,268,115 km (0.104 R)
• M7: 3,816,242 km (0.043 R)
• M8: 4,719,214 km (0.086 R)
• M9: 5,473,786 km (0.108 R)
• M10: 5,974,939 km (0.11 R)
• M11: 6,506,759 km (0.111 R)
• M12: 8,710,037 km (0.045 R)
• M13: 9,846,681 km (0.12 R)
• M14: 11,121,555 km (0.113 R)
• M15: 13,189,595 km (0.084 R)
• M16: 16,402,659 km (0.105 R)
• M17: 17,674,988 km (0.098 R)
• M18: 18,190,503 km (0.104 R)
• M19: 20,166,840 km (0.103 R)
• M20: 20,919,916 km (0.03 R)
• M21: 21,953,039 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.3

Radius: 9.5

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.01 AU - 6.05 AU

Year: 7787 Days

Day: 10.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,896,958 km

• M1: 118,182 km (0.075 R)
• M2: 477,367 km (0.107 R)
• M3: 1,230,891 km (0.118 R)
• M4: 1,552,975 km (0.075 R)
• M5: 2,017,626 km (0.089 R)
• M6: 2,421,242 km (0.062 R)
• M7: 4,203,551 km (0.091 R)
• M8: 4,839,491 km (0.114 R)
• M9: 5,166,811 km (0.11 R)
• M10: 7,066,704 km (0.104 R)
• M11: 8,269,022 km (0.116 R)
• M12: 9,645,024 km (0.071 R)
• M13: 10,567,743 km (0.095 R)
• M14: 13,906,319 km (0.089 R)
• M15: 16,082,669 km (0.118 R)
• M16: 18,476,833 km (0.073 R)
• M17: 19,552,591 km (0.088 R)
• M18: 22,725,562 km (0.066 R)
• M19: 30,530,681 km (0.102 R)
• M20: 31,463,574 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.1

Radius: 5.9

Gravity: 17.58 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.67 AU - 6.77 AU

Year: 9443 Days

Day: 25 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,896,958 km

• M1: 73,453 km (0.082 R)
• M2: 340,784 km (0.056 R)
• M3: 533,017 km (0.094 R)
• M4: 1,057,657 km (0.052 R)
• M5: 1,433,746 km (0.031 R)
• M6: 1,991,896 km (0.075 R)
• M7: 2,450,563 km (0.085 R)
• M8: 2,705,029 km (0.103 R)
• M9: 3,336,781 km (0.06 R)
• M10: 3,801,132 km (0.098 R)
• M11: 4,797,903 km (0.055 R)
• M12: 5,041,299 km (0.074 R)
• M13: 5,260,908 km (0.077 R)
• M14: 5,923,776 km (0.104 R)
• M15: 7,334,335 km (0.074 R)
• M16: 7,575,935 km (0.085 R)
• M17: 8,289,218 km (0.12 R)
• M18: 9,184,860 km (0.09 R)
• M19: 10,956,548 km (0.069 R)
• M20: 13,119,883 km (0.094 R)
• M21: 14,521,017 km (0.045 R)
• M22: 16,086,259 km (0.034 R)
• M23: 16,289,563 km (0.063 R)
• M24: 20,169,533 km (0.065 R)
• M25: 20,406,047 km (0.117 R)
• M26: 20,644,207 km (0.111 R)
• M27: 25,075,146 km (0.078 R)
• M28: 32,847,803 km (0.092 R)
• M29: 35,185,270 km (0.074 R)
• M30: 37,989,930 km (0.105 R)
• M31: 39,078,853 km (0.068 R)
• M32: 41,319,081 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 992

Radius: 4.3

Gravity: 53.65 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 5.2 AU - 6.84 AU

Year: 10195 Days

Day: 20.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,896,958 km

• M1: 53,556 km (0.096 R)
• M2: 207,343 km (0.112 R)
• M3: 583,880 km (0.116 R)
• M4: 738,714 km (0.09 R)
• M5: 1,972,448 km (0.086 R)
• M6: 2,406,431 km (0.067 R)
• M7: 2,700,242 km (0.111 R)
• M8: 2,901,600 km (0.113 R)
• M9: 3,513,456 km (0.109 R)
• M10: 5,751,440 km (0.031 R)
• M11: 6,160,889 km (0.03 R)
• M12: 6,750,305 km (0.089 R)
• M13: 7,037,832 km (0.118 R)
• M14: 8,223,993 km (0.096 R)
• M15: 10,432,507 km (0.108 R)
• M16: 11,153,868 km (0.107 R)
• M17: 11,613,881 km (0.064 R)
• M18: 11,907,691 km (0.064 R)
• M19: 13,841,693 km (0.054 R)
• M20: 14,172,154 km (0.119 R)
• M21: 21,054,105 km (0.056 R)
• M22: 22,202,568 km (0.09 R)
• M23: 23,860,711 km (0.054 R)
• M24: 28,152,524 km (0.112 R)
• M25: 30,758,070 km (0.09 R)
• M26: 30,982,168 km (0.102 R)
• M27: 32,004,220 km (0.071 R)
• M28: 33,048,563 km (0.12 R)
• M29: 34,235,323 km (0.07 R)
• M30: 34,839,250 km (0.074 R)
• M31: 39,266,898 km (0.063 R)
• M32: 45,201,595 km (0.092 R)
• M33: 53,143,148 km (0.059 R)
• M34: 53,790,009 km (0.075 R)
• M35: 53,952,472 km (0.082 R)
• M36: 54,441,956 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.9

Radius: 6.8

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.88 AU - 9.56 AU

Year: 17774 Days

Day: 20.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 68,896,958 km

• M1: 84,523 km (0.101 R)
• M2: 541,843 km (0.049 R)
• M3: 758,910 km (0.086 R)
• M4: 977,622 km (0.038 R)
• M5: 1,212,192 km (0.107 R)
• M6: 3,241,935 km (0.096 R)
• M7: 3,570,153 km (0.101 R)
• M8: 3,830,753 km (0.081 R)
• M9: 4,521,745 km (0.111 R)
• M10: 5,866,780 km (0.061 R)
• M11: 7,183,391 km (0.087 R)
• M12: 8,946,701 km (0.033 R)
• M13: 10,980,334 km (0.114 R)
• M14: 13,580,196 km (0.105 R)
• M15: 14,947,969 km (0.091 R)
• M16: 15,935,315 km (0.095 R)
• M17: 17,787,187 km (0.054 R)
• M18: 18,721,725 km (0.118 R)
• M19: 20,048,209 km (0.118 R)
• M20: 20,873,540 km (0.101 R)
• M21: 23,384,990 km (0.096 R)
• M22: 25,768,682 km (0.076 R)
• M23: 26,743,911 km (0.073 R)
• M24: 28,767,820 km (0.095 R)
• M25: 35,316,467 km (0.034 R)
• M26: 35,714,397 km (0.101 R)
• M27: 39,715,692 km (0.118 R)
• M28: 40,724,430 km (0.048 R)
• M29: 42,194,977 km (0.107 R)
• M30: 43,853,120 km (0.096 R)
• M31: 56,151,561 km (0.116 R)
• M32: 57,788,012 km (0.11 R)
• M33: 68,484,858 km (0.034 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: 435 - 13,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit