Na dannoi nedele 17 maya Merkurii dostignet vostochnoi (vechernei) elongacii 22 gradusa, a Venera proidet v 6 gr. severnee Al'debarana. 18 maya Luna (F= 0,33+) proidet severnee zvezdnogo skopleniya Yasli (M44), a 19 maya lunnyi poludisk budet nablyudat'sya severnee Regula. 21 maya proizoidet pokrytie Lunoi (F= 0,7+) zvezdy nyu Devy (4,0m) pri vidimosti v Sibiri, a 23 maya Luna (F= 0,88+) proidet severnee Spiki. V etot zhe den' proizoidet pokrytie Lunoi (F= 0,89+) zvezdy 74 Devy (4,7m) pri vidimosti v Sibiri, a Saturn dostignet stoyaniya s perehodom k popyatnomu dvizheniyu. Krome etogo, idet period, kogda yarkie sputniki Yupitera tesno sblizhayutsya i pokryvayutsya drug drugom.

Solnce. Maksimal'naya vysota dnevnogo svetila nad gorizontom na shirote Moskvy uvelichivaetsya do 54 gradusov, a dolgota dnya na toi zhe shirote vozrastaet do 16 chasov 40 minut. Vidimyi diametr Solnca umen'shaetsya do 31,60 minut dugi, a dvizhetsya ono po sozvezdiyu Tel'ca. Dannye o Solnce na tekushee vremya.

Luna. Estestvennyi sputnik Zemli vstupaet v fazu pervoi chetverti 19 maya. Luna v svoem dvizhenii po nebesnoi sfere posetit sozvezdiya Bliznecov, Raka, L'va i Devy, izmenyaya fazu ot 0,2+ do 0,9+ i umen'shaya sklonenie, a takzhe vysotu verhnei kul'minacii. Nachalo nedeli nochnoe svetilo provedet v sozvezdii Bliznecov. V sozvezdii Raka 18 maya serp Luny proidet severnee rasseyannogo zvezdnogo skopleniya Yasli (M44) pri faze 0,33+, v etot zhe den' vstupiv (F= 0,4+) v sozvezdie L'va. 19 maya Luna primet fazu pervoi chetverti, proidya severnee Regula. 20 maya lunnyi oval budet nahodit'sya yuzhnee Vesty, a 21 maya pereidet v sozvezdie Devy pri faze 0,68+. Zdes' 23 maya Luna (F= 0,88+) proidet severnee Spiki, ustremivshis' k sozvezdiyu Vesov, v kotoroe voidet 24 maya pri faze 0,95+. Fazy Luny na dannoe vremya i na budushee.

Iz planet Solnechnoi sistemy: Merkurii, Veneru i Mars mozhno nablyudat' po vecheram, a Yupiter i Saturn imeyut nochnuyu i utrennyuyu vidimost'. Uran ne viden, a Neptun mozhno naiti v binokl' na utrennem sumerechnom nebe. Podrobnye efemeridy i karty dvizheniya bol'shih planet imeyutsya v pechatnoi versii v AK_2021 na http://www.astronet.ru/db/msg/1704127. Efemeridy Solnca, Luny i planet na kazhdyi den' - http://astropixels.com/ .

Iz komet hvostataya strannica ATLAS (C/2020 R4) s bleskom slabee 11m peremeshaetsya po sozvezdiyu L'va. Karty putei komet i asteroidov na mesyac imeyutsya v KN na mai, a na drugie periody - v Astronomicheskom kalendare na 2021 god. Podrobnye svedeniya o kometah nedeli i mesyaca (s kartami i prognozami bleska) privodyatsya na http://aerith.net/comet/weekly/current.html , a rezul'taty nablyudenii - na http://195.209.248.207/ .

Sredi asteroidov naibolee yarkoi na dannoi nedele budet Vesta (7,2m) v sozvezdii L'va.

Iz otnositel'no yarkih (do 9,0m fotograficheskogo bleska) dolgoperiodicheskih peremennyh zvezd, nablyudaemyh s territorii nashei strany, maksimuma bleska dostignet X Bliznecov 8,6m - 19 maya.

Videokalendar' predstoyashih yavlenii http://www.youtube.com/user/AstroSmit i http://www.youtube.com/c/AstroMich .

Nedel'nyi obzor ot zhurnala "Skai end Teleskop", no nuzhno uchityvat', chto kartinki dayutsya dlya 40 severnoi shiroty, a polozhenie Luny i planet na 7 chasov pozdnee otnositel'no moskovskogo vremeni!

Yasnogo neba i uspeshnyh nablyudenii!

Svedeniya ob astronomicheskih yavleniyah proshlogo i tekushego stoletii mozhno naiti v Astronomicheskom kalendare-spravochnike na Astronet http://www.astronet.ru/db/msg/1388759 .

Planety

Merkurii. Planeta peremeshaetsya v odnom napravlenii s Solncem po sozvezdiyu Tel'ca, nablyudayas' na fone vechernei zari ryadom s Veneroi. Uglovye razmery Merkuriya uvelichivayutsya do 9,5 sekund dugi, a blesk snizhaetsya do +1,3m. Faza planety umen'shaetsya ot 0,4 do 0,2, a elongaciya umen'shaetsya ot 22 do 20 gradusov. Rasstoyanie mezhdu Merkuriem i Zemlei umen'shaetsya ot 0,84 do 0,7 a.e.. Polozheniya planety vo vremya vseh elongacii 2021 goda imeyutsya v Astronomicheskom kalendare na 2021 god. Kosmicheskie issledovaniya - Messendzher. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/mercury2021.html

Venera. Planeta dvizhetsya v odnom napravlenii s Solncem po sozvezdiyu Tel'ca. Venera nablyudaetsya na vechernem nebe okolo Merkuriya. Elongaciya planety uvelichivaetsya do 15 gradusov k vostoku ot Solnca. Vidimyi diametr Venery sostavlyaet okolo 10 uglovyh sekund, a blesk imeet znachenie -4m pri faze blizkoi k 0,95. Rasstoyanie mezhdu Zemlei i Veneroi umen'shaetsya ot 1,66 do 1,64 a.e.. Kosmicheskie issledovaniya - Venera-Ekspress. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/venus2021.html

Mars. Zagadochnaya planeta peremeshaetsya v odnom napravlenii s Solncem po sozvezdiyu Bliznecov. Mars nablyudaetsya v vechernee vremya. Blesk planety imeet znachenie okolo +1,7m, a vidimyi diametr - okolo 4 sekund dugi. V teleskop viden krohotnyi krasnovatyi disk. Rasstoyanie mezhdu Marsom i Zemlei uvelichivaetsya ot 2,14 do 2,19 a.e. Kosmicheskie issledovaniya - MSL Curiosity. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/mars2021.html

Yupiter. Gazovyi gigant dvizhetsya v odnom napravlenii s Solncem po sozvezdiyu Vodoleya. Yupiter viden na utrennem nebe levee Saturna. Uglovoi diametr planety sostavlyaet okolo 40 sekund dugi pri bleske okolo -2,3m i rasstoyanii ot Zemli 5,02 - 4,91 a.e.. V nebol'shoi teleskop v periody horoshei vidimosti mozhno razglyadet' polosy na diske planety (parallel'no ekvatoru) i drugie detali. Pokrytiya sputnikov planetoi, zatmeniya i prohozhdeniya ih pered planetoi naibolee horosho vidny v period protivostoyaniya. Konfiguracii sputnikov Yupitera imeyutsya v KN na mai. Kosmicheskie issledovaniya - Galileo. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/jupiter2021.html

Saturn. Okol'covannaya planeta imeet pryamoe dvizhenie, peremeshayas' po sozvezdiyu Kozeroga. Saturn nablyudaetsya na utrennem nebe pravee Yupitera. Blesk planety imeet znachenie +0,6m, a uglovoi diametr - bolee 17 sekund dugi. V nebol'shoi teleskop mozhno nablyudat' kol'co planety. Sputnik Saturna Titan (8m) mozhno uvidet' dazhe v binokl', a drugie otnositel'no yarkie sputniki planety - v teleskop s diametrom ob'ektiva ot 60mm. Rasstoyanie ot Zemli do Saturna umen'shaetsya ot 9,69 do 9,58 a.e.. Kosmicheskie issledovaniya - Kassini. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/saturn2021.html

Uran. Planeta (m= +6, d= 3,4 ugl. sek.) dvizhetsya v odnom napravlenii s Solncem po sozvezdiyu Ovna (yuzhnee zvezdy al'fa Ovna (+2m)). Uran proshel soedinenie s Solncem 29 aprelya, poetomu ne viden. Rasstoyanie mezhdu Zemlei i Uranom umen'shaetsya ot 20,73 do 20,69 a.e.. Disk planety razlichim v instrument s uvelicheniem ot 80 krat (pri ideal'nyh usloviyah) i vyshe. Kosmicheskie issledovaniya - Voyadzher-2. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/uranus2021.html

Neptun. Planeta (m= +8, d= 2,3 ugl. sek.) imeet pryamoe dvizhenie, peremeshayas' po sozvezdiyu Vodoleya levee zvezdy fi Aqr (4,2m). Neptun mozhno popytat'sya naiti v binokl' na utrennem sumerechnom nebe. Disk planety razlichim v instrument s uvelicheniem ot 100 krat (pri ideal'nyh usloviyah) i vyshe. Rasstoyanie mezhdu Zemlei i Neptunom umen'shaetsya za nedelyu ot 30,36 do 30,25 a.e.. Kosmicheskie issledovaniya - Voyadzher-2. Efemeridy planety na kazhdyi den' imeyutsya na http://astropixels.com/ephemeris/planets/neptune2021.html

Pluton. Karlikovaya planeta ili plutoid (+14,5m) nahoditsya v sozvezdii Strel'ca na rasstoyanii okolo 34 a.e. ot Zemli. Dlya vizual'nyh nablyudenii Plutona neobhodim teleskop s diametrom ob'ektiva ot 250 mm (v periody nailuchshei vidimosti) i prozrachnoe nebo, a ideal'noe mesto dlya ego nablyudenii - v ekvatorial'noi oblasti Zemli. Kosmicheskie issledovaniya - Novye Gorizonty

Obzornye stat'i o planetah i malyh telah Solnechnoi sistemy - v zhurnale Nebosvod 12 za 2008 god i 1 - 8 za 2009 god.

Dopolnitel'no http://galspace.spb.ru (vse o planetah) i http://astro.websib.ru (raznoobraznaya spravochnaya astroinformaciya)

Efemeridy nekotoryh asteroidov nedeli na 0 chasov vsemirnogo vremeni (dannye GUIDE 8.0)

  
Data          a(2000.0)      d(2000.0)   r      delta   m  elon.   V      PA  son.  
Cerera (1)  
21 May 2021   2h18.39546m  + 6.82335 deg  2.890   3.765  9.1  26.0  57.86  69.8 Cet  
26 May 2021   2h25.64058m  + 7.47647 deg  2.887   3.732  9.2  28.8  57.42  70.4 Cet  
Vesta (4)  
21 May 2021  10h59.08754m  +15.83646 deg  2.270   1.866  7.3  99.9  32.38 125.8 Leo  
26 May 2021  11h02.99273m  +15.18709 deg  2.266   1.919  7.4  96.2  36.26 124.2 Leo  
Geba (6)  
21 May 2021  20h02.53535m  - 7.19832 deg  2.409   1.764  9.8 117.8  12.53  68.0 Aql  
26 May 2021  20h03.84678m  - 7.06590 deg  2.398   1.701  9.7 122.1   7.56  66.1 Aql  
Irida (7)  
21 May 2021   1h51.22592m  +15.10053 deg  1.882   2.704  9.9  28.9  91.20  70.1 Ari  
26 May 2021   2h03.07267m  +16.11467 deg  1.876   2.675  9.9  30.6  91.19  70.8 Ari  
Ausonia (63)  
21 May 2021  16h52.21395m  -33.44192 deg  2.114   1.132 10.0 160.9  30.70 267.3 Sco  
26 May 2021  16h47.25922m  -33.44847 deg  2.111   1.116  9.9 165.2  33.47 271.7 Sco  
  
a  pryamoe voshozhdenie dlya epohi 2000.0,  d - sklonenie dlya epohi 2000.0,    
r -  rasstoyanie ot Solnca (a.e.),  delta -  rasstoyanie ot Zemli (a.e.),    
m -  zvezdnaya velichina, elon. - elongaciya, V -  uglovaya skorost' (sekund v chas),   
RA -  pozicionnyi ugol napravleniya dvizheniya nebesnogo tela, son. -  sozvezdie    

Izbrannye astronomicheskie yavleniya nedeli

Vremya dlya yavlenii privoditsya vsemirnoe. Na saite Sergeya Gur'yanova mozhno pol'zovat'sya veb-versiei AK na 2021 god s obshim obzorom zvezdnogo neba i yavlenii maya mesyaca. Svedeniya ot drugih yavleniyah imeyutsya v KN na mai, Astronomicheskom kalendare na 2021 god i Astronomicheskom kalendare - spravochnike .

17 maya, vecher - Venera prohodit v 6 gr. severnee Al'debarana.

18 maya, vecher - Luna (F= 0,33+) prohodit severnee zvezdnogo skopleniya Yasli (M44).

19 maya, 19 chasov 21 minuta - Luna v faze pervoi chetverti.

20 maya, utro - Dolgoperiodicheskaya peremennaya zvezda X Bliznecov bliz maksimuma bleska (7,5m).

21 maya, 15 chasov 06 minut - Pokrytie Lunoi (F= 0,7+) zvezdy nyu Devy (4,0m) pri vidimosti v Sibiri.

22 maya, vecher - Luna (F= 0,8+) bliz Spiki.

23 maya, 16 chasov 42 minuty - Pokrytie Lunoi (F= 0,89+) zvezdy 74 Devy (4,7m) pri vidimosti v Sibiri.

Dopolnitel'no o yavleniyah i nablyudeniyah - na Astroforume, Novosti nauki, Meteoveb, Mir astronomii i DvaStrel'ca.

Vid zvezdnogo neba v techenie nedeli v srednih shirotah (masshtab vida planet v teleskop soblyuden, sever vverhu):

Vid vostochnoi i yugo-vostochnoi chasti polunochnogo neba 20 maya v gorodah na shirote Moskvy.

Vid vostochnoi i yugo-vostochnoi chasti neba za chas do voshoda Solnca 20 maya v gorodah na shirote Moskvy.

Vid yugo-zapadnoi i zapadnoi chasti neba cherez chas posle zahoda Solnca 20 maya v gorodah na shirote Moskvy.

Istochniki: Kalendar' Nablyudatelya N 05 AstroKA; StarryNightBackyard 3.1 (opisatel'naya chast' i vid neba), GUIDE 8.0 (polozhenie asteroidov i komet), http://aerith.net/comet/weekly/current.html (operativnye svedeniya o kometah), http://www.imo.net (meteory), AAVSO i http://blog.astronomypage.ru (peremennye zvezdy), Astronomicheskii kalendar'-spravochnik ot 1901 do 2100 goda, http://www.minorplanetcenter.net/ (katalog asteroidov i komet, a takzhe operativnaya informaciya o novyh nebesnyh telah), http://asteroidoccultation.com/IndexAll.htm (pokrytiya zvezd asteroidami).