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20th century

The 20th century

1,560 inventions and discoveries

Invention or discovery	Date	Inventor or discoverer	Type
20329 Manfro	April 20, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20331 Bijemarks	April 20, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21450 Kissel	April 20, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21453 Victorlevine	April 20, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21454 Chernoby	April 20, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11716 Amahartman	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11718 Hayward	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11719 Hicklen	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11720 Horodyskyj	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11724 Ronaldhsu	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12093 Chrimatthews	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12094 Mazumder	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12519 Pullen	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20336 Gretamills	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20337 Naeve	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20338 Elainepappas	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20339 Eileenreed	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20343 Vaccariello	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20354 Rebeccachan	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21463 Nickerson	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21470 Frankchuang	April 21, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20345 Davidvito	April 23, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12095 Pinel	April 25, 1998	Eric Walter Elst	small Solar System body
12527 Anneraugh	May 1998	Lowell Observatory Near-Earth-Object Search	asteroid
12859 Marlamoore	May 18, 1998	Lowell Observatory Near-Earth-Object Search	asteroid
12860 Turney	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12866 Yanamadala	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20371 Ekladyous	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20372 Juliafanning	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20373 Fullmer	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20375 Sherrigerten	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20376 Joyhines	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
20379 Christijohns	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21503 Beksha	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21505 Bernert	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21506 Betsill	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21507 Bhasin	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21509 Lucascavin	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21512 Susieclary	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21513 Bethcochran	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21514 Gamalski	May 22, 1998	Lincoln Near-Earth Asteroid Research	asteroid
18730 Wingip	May 23, 1998	Lowell Observatory Near-Earth-Object Search	asteroid
21515 Gavini	May 23, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21516 Mariagodinez	May 23, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21518 Maysunhasan	May 23, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21519 Josephhenry	May 23, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12111 Ulm	June 1998	Eric Walter Elst	asteroid
21522 Entwisle	June 19, 1998	Lincoln Near-Earth Asteroid Research	asteroid
Gliese 876 b	June 23, 1998	Geoffrey Marcy	exoplanet
21527 Horton	June 24, 1998	Lincoln Near-Earth Asteroid Research	asteroid
21528 Chrisfaust	June 24, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11369 Brazelton	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
11371 Camley	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12878 Erneschiller	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12880 Juliegrady	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
12881 Yepeiyu	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
13258 Bej	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
13259 Bhat	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
13265 Terbunkley	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid
13269 Dahlstrom	August 17, 1998	Lincoln Near-Earth Asteroid Research	asteroid