🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.9

Radius: 12

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.61 AU - 0.67 AU

Year: 360 Days

Day: 11.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,005,891 km

• M1: 149,299 km (0.117 R)
• M2: 243,396 km (0.097 R)
• M3: 351,256 km (0.051 R)
• M4: 496,216 km (0.06 R)
• M5: 722,109 km (0.107 R)
• M6: 822,788 km (0.116 R)
• M7: 910,453 km (0.1 R)
• M8: 1,030,131 km (0.099 R)
• M9: 1,224,459 km (0.074 R)
• M10: 1,307,186 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.7

Radius: 13.6

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.6 AU - 0.8 AU

Year: 412 Days

Day: 11 Hours

Environment

Temp: -164 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 22,005,891 km

• M1: 175,927 km (0.091 R)
• M2: 415,732 km (0.114 R)
• M3: 520,750 km (0.1 R)
• M4: 827,725 km (0.083 R)
• M5: 924,066 km (0.098 R)
• M6: 1,071,719 km (0.071 R)
• M7: 1,163,423 km (0.119 R)
• M8: 1,248,095 km (0.048 R)
• M9: 1,392,307 km (0.113 R)
• M10: 1,547,889 km (0.097 R)
• M11: 1,824,496 km (0.08 R)
• M12: 2,001,919 km (0.11 R)
• M13: 2,135,809 km (0.056 R)
• M14: 2,342,553 km (0.091 R)
• M15: 2,523,267 km (0.088 R)
• M16: 2,715,351 km (0.059 R)
• M17: 2,857,619 km (0.049 R)
• M18: 2,974,754 km (0.077 R)
• M19: 3,093,385 km (0.085 R)
• M20: 3,185,238 km (0.088 R)
• M21: 3,328,403 km (0.114 R)
• M22: 3,525,124 km (0.037 R)
• M23: 3,665,896 km (0.079 R)
• M24: 3,846,460 km (0.077 R)
• M25: 3,937,865 km (0.107 R)
• M26: 4,037,796 km (0.088 R)
• M27: 4,169,741 km (0.114 R)
• M28: 4,279,546 km (0.061 R)
• M29: 4,606,567 km (0.067 R)
• M30: 4,728,190 km (0.062 R)
• M31: 4,834,554 km (0.075 R)
• M32: 5,099,941 km (0.102 R)
• M33: 5,234,429 km (0.108 R)
• M34: 5,421,277 km (0.087 R)
• M35: 5,524,051 km (0.117 R)
• M36: 5,662,279 km (0.042 R)
• M37: 5,784,202 km (0.037 R)
• M38: 5,968,656 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 10.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.7 AU - 0.82 AU

Year: 466 Days

Day: 7 Hours

Environment

Temp: -171 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 22,005,891 km

• M1: 130,599 km (0.106 R)
• M2: 213,177 km (0.062 R)
• M3: 280,646 km (0.093 R)
• M4: 368,609 km (0.089 R)
• M5: 528,679 km (0.087 R)
• M6: 620,083 km (0.065 R)
• M7: 686,953 km (0.045 R)
• M8: 874,400 km (0.088 R)
• M9: 994,227 km (0.076 R)
• M10: 1,101,788 km (0.032 R)
• M11: 1,280,259 km (0.099 R)
• M12: 1,586,934 km (0.076 R)
• M13: 1,665,922 km (0.11 R)
• M14: 1,751,791 km (0.118 R)
• M15: 1,855,762 km (0.079 R)
• M16: 2,024,059 km (0.081 R)
• M17: 2,262,518 km (0.111 R)
• M18: 2,400,298 km (0.067 R)
• M19: 2,646,686 km (0.102 R)
• M20: 2,728,516 km (0.101 R)
• M21: 2,824,109 km (0.115 R)
• M22: 3,018,735 km (0.086 R)
• M23: 3,091,141 km (0.116 R)
• M24: 3,164,145 km (0.114 R)
• M25: 3,352,787 km (0.092 R)
• M26: 3,482,938 km (0.064 R)
• M27: 3,621,764 km (0.084 R)
• M28: 3,790,660 km (0.106 R)
• M29: 3,919,165 km (0.097 R)
• M30: 3,984,090 km (0.111 R)
• M31: 4,136,680 km (0.098 R)
• M32: 4,217,463 km (0.071 R)
• M33: 4,313,505 km (0.101 R)
• M34: 4,477,763 km (0.06 R)
• M35: 4,606,268 km (0.058 R)
• M36: 4,812,713 km (0.112 R)
• M37: 4,975,476 km (0.072 R)
• M38: 5,053,566 km (0.096 R)
• M39: 5,124,325 km (0.105 R)
• M40: 5,298,457 km (0.068 R)
• M41: 5,426,364 km (0.068 R)
• M42: 5,506,847 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.4

Radius: 10.4

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.7 AU - 1.14 AU

Year: 620 Days

Day: 10.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 22,005,891 km

• M1: 129,552 km (0.11 R)
• M2: 221,106 km (0.118 R)
• M3: 293,062 km (0.089 R)
• M4: 449,542 km (0.118 R)
• M5: 535,710 km (0.112 R)
• M6: 601,383 km (0.11 R)
• M7: 670,198 km (0.077 R)
• M8: 751,729 km (0.072 R)
• M9: 821,891 km (0.089 R)
• M10: 936,782 km (0.054 R)
• M11: 1,177,934 km (0.091 R)
• M12: 1,439,132 km (0.12 R)
• M13: 1,528,292 km (0.088 R)
• M14: 1,645,726 km (0.097 R)
• M15: 1,759,570 km (0.102 R)
• M16: 1,882,988 km (0.052 R)
• M17: 2,211,655 km (0.078 R)
• M18: 2,420,942 km (0.05 R)
• M19: 2,489,458 km (0.107 R)
• M20: 2,597,617 km (0.082 R)
• M21: 2,834,580 km (0.096 R)
• M22: 3,338,276 km (0.085 R)
• M23: 3,500,889 km (0.106 R)
• M24: 3,631,189 km (0.103 R)
• M25: 3,816,242 km (0.068 R)
• M26: 3,941,455 km (0.08 R)
• M27: 4,049,914 km (0.11 R)
• M28: 4,278,948 km (0.11 R)
• M29: 4,343,873 km (0.108 R)
• M30: 4,409,098 km (0.116 R)
• M31: 4,484,047 km (0.065 R)
• M32: 4,749,882 km (0.101 R)
• M33: 5,030,528 km (0.047 R)
• M34: 5,138,537 km (0.031 R)
• M35: 5,326,731 km (0.084 R)
• M36: 5,406,766 km (0.115 R)
• M37: 5,477,077 km (0.058 R)
• M38: 5,547,687 km (0.109 R)
• M39: 5,710,151 km (0.102 R)
• M40: 5,874,260 km (0.073 R)
• M41: 6,175,849 km (0.076 R)
• M42: 6,281,016 km (0.106 R)
• M43: 6,365,539 km (0.115 R)
• M44: 6,493,146 km (0.115 R)
• M45: 6,664,436 km (0.107 R)
• M46: 6,891,824 km (0.104 R)
• M47: 7,121,607 km (0.091 R)
• M48: 7,187,729 km (0.06 R)
• M49: 7,465,532 km (0.103 R)
• M50: 7,622,610 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.2

Radius: 13.6

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.31 AU - 2.05 AU

Year: 1531 Days

Day: 14.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 22,005,891 km

• M1: 172,935 km (0.092 R)
• M2: 363,972 km (0.064 R)
• M3: 523,892 km (0.086 R)
• M4: 654,042 km (0.112 R)
• M5: 797,057 km (0.055 R)
• M6: 935,136 km (0.07 R)
• M7: 1,020,557 km (0.12 R)
• M8: 1,117,795 km (0.089 R)
• M9: 1,218,624 km (0.108 R)
• M10: 1,342,042 km (0.035 R)
• M11: 1,612,515 km (0.113 R)
• M12: 1,802,804 km (0.089 R)
• M13: 1,900,940 km (0.104 R)
• M14: 2,091,378 km (0.094 R)
• M15: 2,194,900 km (0.076 R)
• M16: 2,371,425 km (0.059 R)
• M17: 2,540,471 km (0.109 R)
• M18: 2,713,556 km (0.104 R)
• M19: 2,993,753 km (0.041 R)
• M20: 3,243,581 km (0.118 R)
• M21: 3,486,528 km (0.11 R)
• M22: 3,862,318 km (0.102 R)
• M23: 4,698,720 km (0.108 R)
• M24: 4,851,309 km (0.036 R)
• M25: 5,052,070 km (0.034 R)
• M26: 5,176,984 km (0.118 R)
• M27: 5,302,945 km (0.064 R)
• M28: 5,493,832 km (0.101 R)
• M29: 5,606,330 km (0.07 R)
• M30: 5,735,732 km (0.119 R)
• M31: 6,063,800 km (0.11 R)
• M32: 6,330,683 km (0.097 R)
• M33: 6,533,388 km (0.025 R)
• M34: 6,652,617 km (0.103 R)
• M35: 7,189,674 km (0.084 R)
• M36: 7,348,247 km (0.111 R)
• M37: 7,885,154 km (0.093 R)
• M38: 8,012,312 km (0.098 R)
• M39: 8,268,723 km (0.099 R)
• M40: 8,490,577 km (0.098 R)
• M41: 8,658,276 km (0.119 R)
• M42: 8,921,419 km (0.118 R)
• M43: 9,668,361 km (0.067 R)
• M44: 9,863,137 km (0.08 R)
• M45: 10,336,016 km (0.082 R)
• M46: 10,515,234 km (0.063 R)
• M47: 10,635,212 km (0.046 R)
• M48: 11,038,827 km (0.12 R)
• M49: 11,944,343 km (0.081 R)
• M50: 12,279,592 km (0.1 R)
• M51: 12,427,245 km (0.074 R)
• M52: 12,554,253 km (0.05 R)
• M53: 12,639,225 km (0.117 R)
• M54: 13,045,234 km (0.071 R)
• M55: 13,152,794 km (0.107 R)
• M56: 13,325,430 km (0.084 R)
• M57: 13,957,930 km (0.111 R)
• M58: 14,288,990 km (0.109 R)
• M59: 14,399,842 km (0.111 R)
• M60: 14,578,013 km (0.093 R)
• M61: 14,823,952 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518

Radius: 13.5

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.1 AU - 2.64 AU

Year: 2565 Days

Day: 13.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 22,005,891 km

• M1: 282,142 km (0.06 R)
• M2: 393,143 km (0.118 R)
• M3: 555,606 km (0.101 R)
• M4: 753,524 km (0.085 R)
• M5: 958,174 km (0.044 R)
• M6: 1,043,595 km (0.06 R)
• M7: 1,192,445 km (0.085 R)
• M8: 1,348,774 km (0.086 R)
• M9: 1,613,862 km (0.058 R)
• M10: 1,729,501 km (0.095 R)
• M11: 1,824,196 km (0.109 R)
• M12: 1,920,687 km (0.11 R)
• M13: 2,006,556 km (0.104 R)
• M14: 2,233,646 km (0.059 R)
• M15: 2,337,317 km (0.055 R)
• M16: 2,496,040 km (0.111 R)
• M17: 2,796,433 km (0.093 R)
• M18: 2,894,569 km (0.042 R)
• M19: 3,080,071 km (0.118 R)
• M20: 3,343,363 km (0.102 R)
• M21: 3,783,181 km (0.09 R)
• M22: 4,355,093 km (0.118 R)
• M23: 4,734,922 km (0.075 R)
• M24: 5,298,607 km (0.075 R)
• M25: 5,757,872 km (0.029 R)
• M26: 5,992,442 km (0.109 R)
• M27: 6,677,301 km (0.066 R)
• M28: 7,096,325 km (0.118 R)
• M29: 7,289,605 km (0.064 R)
• M30: 7,642,058 km (0.059 R)
• M31: 7,880,217 km (0.117 R)
• M32: 8,020,241 km (0.037 R)
• M33: 8,262,290 km (0.06 R)
• M34: 8,650,497 km (0.096 R)
• M35: 8,919,474 km (0.113 R)
• M36: 9,149,406 km (0.089 R)
• M37: 9,233,480 km (0.049 R)
• M38: 9,381,133 km (0.102 R)
• M39: 9,636,347 km (0.056 R)
• M40: 9,764,702 km (0.097 R)
• M41: 9,872,263 km (0.106 R)
• M42: 9,958,431 km (0.071 R)
• M43: 10,349,779 km (0.1 R)
• M44: 11,259,933 km (0.113 R)
• M45: 11,599,370 km (0.039 R)
• M46: 11,896,322 km (0.042 R)
• M47: 12,357,981 km (0.086 R)
• M48: 12,451,031 km (0.063 R)
• M49: 12,849,111 km (0.099 R)
• M50: 13,132,599 km (0.074 R)
• M51: 13,299,101 km (0.099 R)
• M52: 13,754,178 km (0.119 R)
• M53: 13,971,544 km (0.059 R)
• M54: 14,507,702 km (0.057 R)
• M55: 14,605,988 km (0.05 R)
• M56: 14,926,726 km (0.092 R)
• M57: 15,349,639 km (0.109 R)
• M58: 15,524,968 km (0.079 R)
• M59: 16,411,485 km (0.11 R)
• M60: 16,539,541 km (0.069 R)
• M61: 16,848,161 km (0.081 R)
• M62: 16,977,264 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.4

Radius: 8.2

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.06 AU - 3.06 AU

Year: 3763 Days

Day: 14.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 22,005,891 km

• M1: 106,065 km (0.098 R)
• M2: 318,195 km (0.117 R)
• M3: 434,881 km (0.034 R)
• M4: 518,357 km (0.1 R)
• M5: 628,461 km (0.092 R)
• M6: 713,731 km (0.078 R)
• M7: 826,079 km (0.096 R)
• M8: 956,828 km (0.102 R)
• M9: 1,031,178 km (0.096 R)
• M10: 1,146,368 km (0.096 R)
• M11: 1,279,660 km (0.117 R)
• M12: 1,460,674 km (0.108 R)
• M13: 1,909,916 km (0.056 R)
• M14: 1,988,904 km (0.116 R)
• M15: 2,485,419 km (0.028 R)
• M16: 2,927,780 km (0.117 R)
• M17: 3,646,598 km (0.094 R)
• M18: 3,824,619 km (0.061 R)
• M19: 3,924,850 km (0.058 R)
• M20: 4,066,519 km (0.118 R)
• M21: 4,843,381 km (0.117 R)
• M22: 5,127,168 km (0.104 R)
• M23: 5,326,881 km (0.103 R)
• M24: 5,688,160 km (0.116 R)
• M25: 5,756,825 km (0.098 R)
• M26: 6,010,842 km (0.073 R)
• M27: 6,268,600 km (0.07 R)
• M28: 6,434,504 km (0.086 R)
• M29: 6,746,415 km (0.118 R)
• M30: 6,940,892 km (0.109 R)
• M31: 7,161,998 km (0.075 R)
• M32: 7,385,198 km (0.073 R)
• M33: 7,460,147 km (0.075 R)
• M34: 8,197,814 km (0.088 R)
• M35: 8,720,060 km (0.071 R)
• M36: 8,852,304 km (0.103 R)
• M37: 8,905,412 km (0.085 R)
• M38: 9,011,925 km (0.092 R)
• M39: 9,824,092 km (0.112 R)
• M40: 10,099,951 km (0.081 R)
• M41: 10,183,277 km (0.079 R)
• M42: 10,406,477 km (0.039 R)
• M43: 10,518,675 km (0.12 R)
• M44: 10,971,508 km (0.086 R)
• M45: 11,057,078 km (0.09 R)
• M46: 11,315,284 km (0.114 R)
• M47: 11,808,508 km (0.113 R)
• M48: 11,925,493 km (0.116 R)
• M49: 12,160,811 km (0.116 R)
• M50: 12,905,958 km (0.094 R)
• M51: 13,117,340 km (0.042 R)
• M52: 13,269,032 km (0.071 R)
• M53: 13,390,655 km (0.098 R)
• M54: 13,881,336 km (0.066 R)
• M55: 14,066,837 km (0.103 R)
• M56: 14,346,585 km (0.115 R)
• M57: 14,409,117 km (0.057 R)
• M58: 14,880,201 km (0.071 R)
• M59: 15,038,326 km (0.106 R)
• M60: 15,837,627 km (0.079 R)
• M61: 16,388,896 km (0.107 R)
• M62: 16,946,596 km (0.118 R)
• M63: 17,078,691 km (0.068 R)
• M64: 17,178,024 km (0.099 R)
• M65: 18,147,867 km (0.084 R)
• M66: 18,418,490 km (0.102 R)
• M67: 18,758,825 km (0.111 R)
• M68: 19,757,241 km (0.075 R)
• M69: 19,826,655 km (0.114 R)
• M70: 20,245,379 km (0.094 R)
• M71: 20,526,174 km (0.036 R)
• M72: 20,843,471 km (0.089 R)
• M73: 20,914,231 km (0.105 R)
• M74: 21,056,050 km (0.066 R)
• M75: 21,661,921 km (0.043 R)
• M76: 22,129,115 km (0.093 R)
• M77: 22,927,519 km (0.064 R)
• M78: 23,957,052 km (0.119 R)
• M79: 24,179,653 km (0.114 R)
• M80: 24,440,253 km (0.113 R)
• M81: 24,589,552 km (0.078 R)
• M82: 25,114,640 km (0.111 R)
• M83: 25,227,587 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267

Radius: 11.7

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.41 AU - 3.97 AU

Year: 4983 Days

Day: 13 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 22,005,891 km

• M1: 301,141 km (0.061 R)
• M2: 499,507 km (0.118 R)
• M3: 857,645 km (0.078 R)
• M4: 932,144 km (0.107 R)
• M5: 1,009,187 km (0.063 R)
• M6: 1,193,941 km (0.089 R)
• M7: 1,365,081 km (0.109 R)
• M8: 1,531,433 km (0.045 R)
• M9: 1,610,720 km (0.085 R)
• M10: 1,745,807 km (0.073 R)
• M11: 2,100,803 km (0.118 R)
• M12: 2,174,555 km (0.101 R)
• M13: 2,385,936 km (0.065 R)
• M14: 2,588,342 km (0.092 R)
• M15: 2,747,963 km (0.069 R)
• M16: 2,845,352 km (0.079 R)
• M17: 3,144,547 km (0.118 R)
• M18: 3,349,796 km (0.113 R)
• M19: 4,139,822 km (0.053 R)
• M20: 4,289,569 km (0.084 R)
• M21: 5,327,031 km (0.031 R)
• M22: 6,138,300 km (0.118 R)
• M23: 6,352,524 km (0.108 R)
• M24: 6,744,470 km (0.115 R)
• M25: 7,032,446 km (0.06 R)
• M26: 7,369,939 km (0.069 R)
• M27: 7,758,744 km (0.107 R)
• M28: 7,851,195 km (0.093 R)
• M29: 8,060,483 km (0.103 R)
• M30: 8,508,678 km (0.115 R)
• M31: 8,651,993 km (0.072 R)
• M32: 8,771,970 km (0.099 R)
• M33: 9,331,018 km (0.108 R)
• M34: 9,826,486 km (0.092 R)
• M35: 10,203,921 km (0.088 R)
• M36: 11,102,705 km (0.034 R)
• M37: 11,285,663 km (0.071 R)
• M38: 11,416,861 km (0.057 R)
• M39: 11,522,178 km (0.084 R)
• M40: 11,601,315 km (0.111 R)
• M41: 11,920,108 km (0.049 R)
• M42: 12,268,671 km (0.036 R)
• M43: 12,538,994 km (0.113 R)
• M44: 12,784,036 km (0.114 R)
• M45: 13,085,775 km (0.114 R)
• M46: 13,389,757 km (0.108 R)
• M47: 13,473,083 km (0.084 R)
• M48: 13,864,282 km (0.116 R)
• M49: 14,089,427 km (0.099 R)
• M50: 14,259,071 km (0.106 R)
• M51: 15,262,573 km (0.117 R)
• M52: 16,170,333 km (0.051 R)
• M53: 16,645,755 km (0.05 R)
• M54: 16,975,170 km (0.029 R)
• M55: 17,095,596 km (0.025 R)
• M56: 17,519,107 km (0.12 R)
• M57: 17,671,099 km (0.07 R)
• M58: 18,345,636 km (0.096 R)
• M59: 18,623,888 km (0.077 R)
• M60: 18,997,134 km (0.105 R)
• M61: 19,184,730 km (0.078 R)
• M62: 19,435,905 km (0.085 R)
• M63: 19,719,543 km (0.112 R)
• M64: 19,877,817 km (0.069 R)
• M65: 20,579,132 km (0.105 R)
• M66: 20,836,141 km (0.109 R)
• M67: 20,997,258 km (0.059 R)
• M68: 21,744,051 km (0.094 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 19,190 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit