নিকলাই চের্নিখ

নিকলাই স্তেপানভিচ চের্নিখ (; ৬ অক্টোবর ১৯৩১ – ২৬ মে ২০০৪) ছিলেন একজন রুশ বংশোদ্ভূত সোভিয়েত জ্যোতির্বিজ্ঞানী এবং গ্রহাণু ও ধূমকেতুর আবিষ্কারক। তিনি ক্রিমিয়ার নাউচনিতে অবস্থিত ক্রিমিয়ান অ্যাস্ট্রোফিজিক্যাল অবজারভেটরিতে কাজ করতেন।

জীবনী
চের্নিখ ১৯৩১ সালের ৬ই অক্টোবর ভরনেঝ অবলাস্তের (বর্তমান লিপেৎস্ক অবলাস্ত) উসমান শহরে জন্মগ্রহণ করেন। তিনি জ্যোতির্বিজ্ঞান ও সৌরজগতের ক্ষুদ্র গ্রহের গতি বিষয়ক বিশেষজ্ঞ। তিনি ১৯৬৩ সাল থেকে ক্রিমিয়ার নাউচনিতে অবস্থিত ক্রিমিয়ান অ্যাস্ট্রোফিজিক্যাল অবজারভেটরিতে কাজ করতেন।

চের্নিখ ৭৪পি/স্মির্নভা-চের্নিখ ও ১০১পি/চের্নিখ নামক দুটি পাক্ষিক ধূমকেতু আবিষ্কার করেন। এছাড়া তিনি অসংখ্য গ্রহাণু আবিষ্কার করেন, তন্মধ্যে উল্লেখযোগ্য হল ২৮৬৭ স্তেইন্স ও ট্রোজার গ্রহাণু ২২০৭ অ্যান্টেনর। চের্নিখ তার স্ত্রী ও সহকর্মী লুদমিলা চের্নিখের সাথে কাজ করতেন। ১৯৭৯ সালে চেক জ্যোতির্বিজ্ঞানী আন্তোনিন ম্রকোস তাদের দুজনের সম্মানার্থে তাদের নামানুসারে তার আবিষ্কৃত গ্রহাণুর নামকরণ করেন ২৩২৫ চের্নিখ।

 আবিষ্কৃত গ্রহাণুর তালিকা 
নিকলাই চের্নিখ কর্তৃক আবিষ্কৃত গ্রহাণুর তালিকা 
 নাম আবিষ্কারের তারিখ তালিকাভুক্তি 1796 Riga  ১৬ মে ১৯৬৬   1836 Komarov  ২৬ মে ১৯৭১   1907 Rudneva  ১১ সেপ্টেম্বর ১৯৭২   1908 Pobeda  ১১ সেপ্টেম্বর ১৯৭২   2004 Lexell  ২২ সেপ্টেম্বর ১৯৭৩   2006 Polonskaya  ২২ সেপ্টেম্বর ১৯৭৩   2036 Sheragul  ২২ সেপ্টেম্বর ১৯৭৩   2113 Ehrdni  ১১ সেপ্টেম্বর ১৯৭২   2123 Vltava  ২২ সেপ্টেম্বর ১৯৭৩   2149 Schwambraniya  ২২ মার্চ ১৯৭৭   2164 Lyalya  ১১ সেপ্টেম্বর ১৯৭২   2178 Kazakhstania  ১১ সেপ্টেম্বর ১৯৭২   2190 Coubertin  2 April 1976   2206 Gabrova  1 April 1976   2207 Antenor  19 August 1977   2208 Pushkin  22 August 1977   2222 Lermontov  19 September 1977   2228 Soyuz-Apollo  19 July 1977   2238 Steshenko  11 September 1972   2251 Tikhov  19 September 1977   2254 Requiem  19 August 1977   2269 Efremiana  2 May 1976   2286 Fesenkov  14 July 1977   2287 Kalmykia  22 August 1977   2293 Guernica  13 March 1977   2294 Andronikov  14 August 1977   2295 Matusovskij  19 August 1977   2297 Daghestan  1 September 1978   2312 Duboshin  1 April 1976   2323 Zverev  24 September 1976   2338 Bokhan  22 August 1977   2354 Lavrov  9 August 1978    2361 Gogol  1 April 1976   2362 Mark Twain  24 September 1976   2369 Chekhov  4 April 1976   2372 Proskurin  13 September 1977   2376 Martynov  22 August 1977   2377 Shcheglov  31 August 1978   2388 Gase  13 March 1977   2389 Dibaj  19 August 1977   2394 Nadeev  22 September 1973   2402 Satpaev  31 July 1979   2408 Astapovich  31 August 1978   2416 Sharonov  31 July 1979   2420 Čiurlionis  3 October 1975   2426 Simonov  26 May 1976   2427 Kobzar  20 December 1976   2428 Kamenyar  11 September 1977   2431 Skovoroda  8 August 1978   2439 Ulugbek  21 August 1977   2450 Ioannisiani  1 September 1978   2458 Veniakaverin  11 September 1977   2473 Heyerdahl  12 September 1977   2476 Andersen  2 May 1976   2477 Biryukov  14 August 1977   2492 Kutuzov  14 July 1977   2497 Kulikovskij  14 August 1977   2498 Tsesevich  23 August 1977   2506 Pirogov  26 August 1976   2508 Alupka  13 March 1977   2509 Chukotka  14 July 1977   2520 Novorossijsk  26 August 1976   2529 Rockwell Kent  21 August 1977   2553 Viljev  29 March 1979   2563 Boyarchuk  22 March 1977   2564 Kayala  19 August 1977   2566 Kirghizia  29 March 1979   2577 Litva  12 March 1975   2579 Spartacus  14 August 1977   2580 Smilevskia  18 August 1977   2584 Turkmenia  23 March 1979   2585 Irpedina  21 July 1979   2593 Buryatia  2 April 1976   2606 Odessa  1 April 1976   2607 Yakutia  14 July 1977   2609 Kiril-Metodi  9 August 1978    2610 Tuva  5 September 1978   2625 Jack London  2 May 1976   2626 Belnika  8 August 1978   2627 Churyumov  8 August 1978   2644 Victor Jara  22 September 1973   2646 Abetti  13 March 1977   2656 Evenkia  25 April 1979   2657 Bashkiria  23 September 1979   2668 Tataria  26 August 1976   2670 Chuvashia  14 August 1977   2671 Abkhazia  21 August 1977   2700 Baikonur  20 December 1976   2701 Cherson  1 September 1978   2703 Rodari  29 March 1979   2711 Aleksandrov  31 August 1978   2721 Vsekhsvyatskij  22 September 1973   2722 Abalakin  1 April 1976   2723 Gorshkov  31 August 1978   2724 Orlov  13 September 1978   2726 Kotelnikov  22 September 1979   2727 Paton  22 September 1979   2728 Yatskiv  22 September 1979   2734 Hašek  1 April 1976   2746 Hissao  22 September 1979   2758 Cordelia  1 September 1978   2769 Mendeleev  1 April 1976   2770 Tsvet  19 September 1977   2776 Baikal  25 September 1976   2777 Shukshin  24 September 1979   2783 Chernyshevskij  14 September 1974   2785 Sedov  31 August 1978   2786 Grinevia  6 September 1978   2787 Tovarishch  13 September 1978   2792 Ponomarev  13 March 1977   2793 Valdaj  19 August 1977   2794 Kulik  8 August 1978   2809 Vernadskij  31 August 1978   2810 Lev Tolstoj  13 September 1978   2832 Lada  6 March 1975   2833 Radishchev  9 August 1978    2836 Sobolev  22 December 1978   2849 Shklovskij  1 April 1976   2859 Paganini  5 September 1978   2862 Vavilov  15 May 1977   2867 Šteins  4 November 1969   2869 Nepryadva  7 September 1980   2883 Barabashov  13 September 1978   2887 Krinov  22 August 1977   2910 Yoshkar-Ola  11 October 1980   2915 Moskvina  22 August 1977   2916 Voronveliya  8 August 1978   2922 Dikan'ka  1 April 1976   2951 Perepadin  13 September 1977   2952 Lilliputia  22 September 1979   2953 Vysheslavia  24 September 1979   2966 Korsunia  13 March 1977   2967 Vladisvyat  19 September 1977   2968 Iliya  31 August 1978   2969 Mikula  5 September 1978   2983 Poltava  2 September 1981   2995 Taratuta  31 August 1978   3006 Livadia  24 September 1979   3009 Coventry  22 September 1973   3012 Minsk  27 August 1979   3013 Dobrovoleva  23 September 1979   3027 Shavarsh  8 August 1978   3038 Bernes  31 August 1978   3053 Dresden  18 August 1977   3054 Strugatskia  11 September 1977   3072 Vilnius  5 September 1978   3073 Kursk  24 September 1979   3084 Kondratyuk  19 August 1977   3094 Chukokkala  23 March 1979   3100 Zimmerman  13 March 1977   3112 Velimir  22 August 1977   3113 Chizhevskij  1 September 1978   3120 Dangrania  14 September 1979   3128 Obruchev  23 March 1979   3148 Grechko  24 September 1979   3158 Anga  24 September 1976   3170 Dzhanibekov  24 September 1979   3186 Manuilova  22 September 1973   3189 Penza  13 September 1978   3191 Svanetia  22 September 1979   3195 Fedchenko  8 August 1978   3196 Maklaj  1 September 1978   3204 Lindgren  1 September 1978   3213 Smolensk  14 July 1977   3224 Irkutsk  11 September 1977   3230 Vampilov  8 June 1972   3233 Krišbarons  9 September 1977   3234 Hergiani  31 August 1978   3238 Timresovia  8 November 1975   3242 Bakhchisaraj  22 September 1979   3246 Bidstrup  1 April 1976   3261 Tvardovskij  22 September 1979   3283 Skorina  27 August 1979   3298 Massandra  21 July 1979   3302 Schliemann  11 September 1977   3306 Byron  24 September 1979   3311 Podobed  26 August 1976   3323 Turgenev  22 September 1979   3348 Pokryshkin  6 March 1978   3349 Manas  23 March 1979   3358 Anikushin  1 September 1978   3359 Purcari  13 September 1978   3372 Bratijchuk  24 September 1976   3373 Koktebelia  31 August 1978   3385 Bronnina  24 September 1979   3399 Kobzon  22 September 1979   3408 Shalamov  18 August 1977   3409 Abramov  9 September 1977   3436 Ibadinov  24 September 1976   3444 Stepanian  7 September 1980   3448 Narbut  22 August 1977   3461 Mandelshtam  18 September 1977   3466 Ritina  6 March 1975   3470 Yaronika  6 March 1975   3471 Amelin  21 August 1977   3493 Stepanov  3 April 1976   3504 Kholshevnikov  3 September 1981   3517 Tatianicheva  24 September 1976   3518 Florena  18 August 1977   3535 Ditte  24 September 1979   3544 Borodino  7 September 1977   3557 Sokolsky  19 August 1977   3575 Anyuta  26 February 1984   3576 Galina  26 February 1984   3591 Vladimirskij  31 August 1978   3599 Basov  8 August 1978   3601 Velikhov  22 September 1979   3618 Kuprin  20 August 1979   3632 Grachevka  24 September 1976   3653 Klimishin  25 April 1979   3656 Hemingway  31 August 1978   3660 Lazarev  31 August 1978   3661 Dolmatovskij  16 October 1979   3710 Bogoslovskij  13 September 1978   3723 Voznesenskij  1 April 1976   3738 Ots  19 August 1977   3739 Rem  8 September 1977   3762 Amaravella  26 August 1976   3787 Aivazovskij  11 September 1977   3799 Novgorod  22 September 1979   3816 Chugainov  8 November 1975   3818 Gorlitsa  20 August 1979   3835 Korolenko  23 September 1977   3836 Lem  22 September 1979   3839 Bogaevskij  26 July 1971   3845 Neyachenko  22 September 1979   3856 Lutskij  26 August 1976   3883 Verbano  7 September 1972   3884 Alferov  13 March 1977   3885 Bogorodskij  25 April 1979   3886 Shcherbakovia  3 September 1981   3923 Radzievskij  24 September 1976   3942 Churivannia  11 September 1977   3945 Gerasimenko  14 August 1982   3965 Konopleva  8 November 1975   3966 Cherednichenko  24 September 1976   3986 Rozhkovskij  19 September 1985   4009 Drobyshevskij  13 March 1977   4010 Nikol'skij  21 August 1977   4011 Bakharev  28 September 1978   4013 Ogiria  21 July 1979   4014 Heizman  28 September 1979   4067 Mikhel'son  11 October 1966   4074 Sharkov  22 October 1981   4115 Peternorton  29 August 1982   4141 Nintanlena  8 August 1978   4165 Didkovskij  1 April 1976   4187 Shulnazaria  11 April 1978   4188 Kitezh  25 April 1979   4189 Sayany  22 September 1979   4233 Pal'chikov  11 September 1977   4234 Evtushenko  6 May 1978   4236 Lidov  23 March 1979   4237 Raushenbakh  24 September 1979   4271 Novosibirsk  3 April 1976   4274 Karamanov  6 September 1980   4280 Simonenko  13 August 1985   4306 Dunaevskij  24 September 1976   4308 Magarach  9 August 1978   4315 Pronik  24 September 1979   4316 Babinkova  14 October 1979   4389 Durbin  1 April 1976   4391 Balodis  21 August 1977   4392 Agita  13 September 1978   4428 Khotinok  18 September 1977   4429 Chinmoy  12 September 1978   4464 Vulcano  11 October 1966   4468 Pogrebetskij  24 September 1976   4470 Sergeev-Censkij  31 August 1978   4472 Navashin  15 October 1980  
 Name Discovery Date Listing 4480 Nikitibotania  24 August 1985   4515 Khrennikov  28 September 1973   4516 Pugovkin  28 September 1973   4518 Raikin  1 April 1976   4519 Voronezh  18 December 1976   4520 Dovzhenko  22 August 1977   4521 Akimov  29 March 1979   4534 Rimskij-Korsakov  6 August 1986   4561 Lemeshev  13 September 1978   4592 Alkissia  24 September 1979   4618 Shakhovskoj  12 September 1977   4619 Polyakhova  11 September 1977   4621 Tambov  27 August 1979   4653 Tommaso  1 April 1976   4654 Gor'kavyj  11 September 1977   4655 Marjoriika  1 September 1978   4657 Lopez  22 September 1979   4658 Gavrilov  24 September 1979   4683 Veratar  1 April 1976   4685 Karetnikov  27 September 1978   4686 Maisica  22 September 1979   4687 Brunsandrej  24 September 1979   4728 Lyapidevskij  11 November 1979   4737 Kiladze  24 August 1985   4777 Aksenov  24 September 1976   4780 Polina  25 April 1979   4786 Tatianina  13 August 1985   4813 Terebizh  11 September 1977   4814 Casacci  1 September 1978   4852 Pamjones  15 May 1977   4882 Divari  21 August 1977   4883 Korolirina  5 September 1978   4884 Bragaria  21 July 1979   4920 Gromov  8 August 1978   4935 Maslachkova  13 August 1985   4964 Kourovka  21 July 1979   4982 Bartini  14 August 1977   4983 Schroeteria  11 September 1977   4986 Osipovia  23 September 1979   5016 Migirenko  2 April 1976   5044 Shestaka  18 August 1977   5083 Irinara  13 March 1977   5084 Gnedin  26 March 1977   5085 Hippocrene  14 July 1977   5086 Demin  5 September 1978   5087 Emel'yanov  12 September 1978   5219 Zemka  2 April 1976   5220 Vika  23 September 1979   5222 Ioffe  11 October 1980   5245 Maslyakov  1 April 1976   5252 Vikrymov  13 August 1985   5269 Paustovskij  28 September 1978   5302 Romanoserra  18 December 1976   5303 Parijskij  3 October 1978   5314 Wilkickia  20 September 1982   5319 Petrovskaya  15 September 1985   5343 Ryzhov  23 September 1977   5344 Ryabov  1 September 1978   5360 Rozhdestvenskij  8 November 1975   5411 Liia  2 January 1973   5413 Smyslov  13 March 1977   5414 Sokolov  11 September 1977   5415 Lyanzuridi  3 October 1978   5455 Surkov  13 September 1978   5456 Merman  25 April 1979   5458 Aizman  10 October 1980   5543 Sharaf  3 October 1978   5570 Kirsan  4 April 1976   5614 Yakovlev  11 November 1979   5661 Hildebrand  14 August 1977   5707 Shevchenko  2 April 1976   5714 Krasinsky  14 August 1982   5794 Irmina  24 September 1976   5839 GOI  21 September 1974   5859 Ostozhenka  23 March 1979   5887 Yauza  24 September 1976   5889 Mickiewicz  31 March 1979   5931 Zhvanetskij  1 April 1976   5932 Prutkov  1 April 1976   5933 Kemurdzhian  26 August 1976   5935 Ostankino  13 March 1977   5936 Khadzhinov  29 March 1979   5988 Gorodnitskij  1 April 1976   5989 Sorin  26 August 1976   5990 Panticapaeon  9 March 1977   5991 Ivavladis  25 April 1979   6075 Zajtsev  1 April 1976   6164 Gerhardmüller  9 September 1977   6165 Frolova  8 August 1978   6167 Narmanskij  27 August 1979   6219 Demalia  8 August 1978   6232 Zubitskia  19 September 1985    6262 Javid  1 September 1978   6356 Tairov  26 August 1976   6357 Glushko  24 September 1976   6358 Chertok  13 January 1977   6359 Dubinin  13 January 1977   6467 Prilepina  14 October 1979   6536 Vysochinska  14 July 1977   6537 Adamovich  19 August 1979   6574 Gvishiani  26 August 1976   6575 Slavov  8 August 1978   6576 Kievtech  5 September 1978   6589 Jankovich  19 September 1985    6622 Matvienko  5 September 1978   6683 Karachentsov  1 April 1976   6684 Volodshevchenko  19 August 1977   6685 Boitsov  31 August 1978   6753 Fursenko  14 September 1974   6811 Kashcheev  26 August 1976   6845 Mansurova  2 May 1976   7002 Bronshten  26 July 1971   7003 Zoyamironova  25 September 1976   7008 Pavlov  23 August 1985   7046 Reshetnev  20 August 1977   7073 Rudbelia  11 September 1972   7074 Muckea  10 September 1977   7075 Sadovnichij  24 September 1979   7106 Kondakov  8 August 1978   7108 Nefedov  2 September 1981   7216 Ishkov  21 August 1977   7271 Doroguntsov  22 September 1979   7319 Katterfeld  24 September 1976   7322 Lavrentina  22 September 1979   7323 Robersomma  22 September 1979   7373 Stashis  27 August 1979   7385 Aktsynovia  22 October 1981   7394 Xanthomalitia  18 August 1985   7451 Verbitskaya  8 August 1978   7452 Izabelyuria  31 August 1978   7453 Slovtsov  5 September 1978   7509 Gamzatov  9 March 1977   7628 Evgenifedorov  19 August 1977   7629 Foros  19 August 1977   7725 Sel'vinskij  11 September 1972   7727 Chepurova  8 March 1975   7729 Golovanov  24 August 1977   7910 Aleksola  1 April 1976   7912 Lapovok  8 August 1978   7924 Simbirsk  6 August 1986    7976 Pinigin  21 August 1977   7980 Senkevich  3 October 1978   8062 Okhotsymskij  13 March 1977   8064 Lisitsa  1 September 1978   8065 Nakhodkin  31 March 1979   8141 Nikolaev  20 September 1982   8150 Kaluga  24 August 1985   8246 Kotov  20 August 1979   8248 Gurzuf  14 October 1979   8321 Akim  13 March 1977   8322 Kononovich  5 September 1978   8339 Kosovichia  15 September 1985   8446 Tazieff  28 September 1973   8449 Maslovets  13 March 1977   8450 Egorov  19 August 1977   8451 Gaidai  11 September 1977   8470 Dudinskaya  17 September 1982   8475 Vsevoivanov  13 August 1985   8609 Shuvalov  22 August 1977   8635 Yuriosipov  13 August 1985   8781 Yurka  1 April 1976   8783 Gopasyuk  13 March 1977   8785 Boltwood  5 September 1978   8805 Petrpetrov  22 October 1981   8806 Fetisov  22 October 1981   8983 Rayakazakova  13 March 1977   8984 Derevyanko  22 August 1977   8985 Tula  9 August 1978    9145 Shustov  1 April 1976   9148 Boriszaitsev  13 March 1977   9155 Verkhodanov  18 September 1982   9263 Khariton  24 September 1976   9535 Plitchenko  22 October 1981   9549 Akplatonov  19 September 1985    9717 Lyudvasilia  24 September 1976   9733 Valtikhonov  19 September 1985    9915 Potanin  8 September 1977   9916 Kibirev  3 October 1978   9932 Kopylov  23 August 1985   9933 Alekseev  19 September 1985    10005 Chernega  24 September 1976   10010 Rudruna  9 August 1978    10011 Avidzba  31 August 1978   10012 Tmutarakania  3 September 1978    10022 Zubov  22 September 1979   10263 Vadimsimona  24 September 1976   10264 Marov  8 August 1978   10269 Tusi  24 September 1979   10452 Zuev  25 September 1976   10456 Anechka  8 August 1978   10457 Suminov  31 August 1978   10481 Esipov  23 August 1982   10670 Seminozhenko  14 August 1977   10671 Mazurova  11 September 1977   10672 Kostyukova  31 August 1978   10681 Khture  14 October 1979   10718 Samus'  23 August 1985   10990 Okunev  28 September 1973   10991 Dulov  14 September 1974   11003 Andronov  14 October 1979   11011 KIAM  22 October 1981   11015 Romanenko  17 September 1982   11257 Rodionta  3 October 1978   11264 Claudiomaccone  16 October 1979   11444 Peshekhonov  31 August 1978   11785 Migaic  2 January 1973   11786 Bakhchivandji  19 August 1977   11787 Baumanka  19 August 1977   11788 Nauchnyj  21 August 1977   11790 Goode  1 September 1978   12185 Gasprinskij  24 September 1976   12187 Lenagoryunova  11 September 1977   12189 Dovgyj  5 September 1978   12670 Passargea  22 September 1979   12674 Rybalka  7 September 1980   12975 Efremov  28 September 1973   12976 Kalinenkov  26 August 1976   13005 Stankonyukhov  18 September 1982   13009 Voloshchuk  13 August 1985   13480 Potapov  9 August 1978    13482 Igorfedorov  25 April 1979   13906 Shunda  20 August 1977   13922 Kremenia  19 September 1985    14317 Antonov  8 August 1978   14322 Shakura  22 December 1978   14335 Alexosipov  3 September 1981   14346 Zhilyaev  23 August 1985   14794 Konetskiy  24 September 1976   15673 Chetaev  8 August 1978   15695 Fedorshpig  11 September 1985   16356 Univbalttech  1 April 1976   16358 Plesetsk  20 December 1976   16407 Oiunskij  19 September 1985    17354 Matrosov  13 March 1977   17356 Vityazev  9 August 1978   18301 Konyukhov  27 August 1979   19081 Mravinskij  22 September 1973   19082 Vikchernov  26 August 1976   19096 Leonfridman  14 October 1979   19915 Bochkarev  14 September 1974   19916 Donbass  26 August 1976   20963 Pisarenko  19 August 1977   22249 Dvorets Pionerov  11 September 1972   22254 Vladbarmin  3 October 1978   23406 Kozlov  23 August 1977   23409 Derzhavin  31 August 1978   23410 Vikuznetsov  31 August 1978   24605 Tsykalyuk  8 November 1975   24607 Sevnatu  14 August 1977   24608 Alexveselkov  18 September 1977   24647 Maksimachev  23 August 1985   24648 Evpatoria  19 September 1985    24649 Balaklava  19 September 1985    26075 Levitsvet  8 August 1978   26793 Bolshoi  13 January 1977   27658 Dmitrijbagalej  1 September 1978   29080 Astrocourier  1 September 1978   30722 Biblioran  6 September 1978   32734 Kryukov  1 September 1978   37530 Dancingangel  11 September 1977   37556 Svyaztie  28 August 1982    39509 Kardashev  22 October 1981   48410 Kolmogorov  23 August 1985   52231 Sitnik  5 September 1978     24 August 1985   69259 Savostyanov  18 September 1982   73638 Likhanov  8 November 1975  যৌথ-আবিষ্কার: এল. আই. চের্নিখ এল. জি. কারাচকিনা বি. জি. মার্সডেন

তথ্যসূত্র

বহিঃসংযোগ

বিষয়শ্রেণী:১৯৩১-এ জন্ম
বিষয়শ্রেণী:২০০৪-এ মৃত্যু
বিষয়শ্রেণী:২০শ শতাব্দীর জ্যোতির্বিজ্ঞানী
বিষয়শ্রেণী:রুশ জ্যোতির্বিজ্ঞানী
বিষয়শ্রেণী:সোভিয়েত জ্যোতির্বিজ্ঞানী
বিষয়শ্রেণী:গ্রহাণুর আবিষ্কারক
বিষয়শ্রেণী:ধূমকেতুর আবিষ্কারক