Constellation Dolphin - a kananan, amma ban sha'awa

A dare sama na Arewa Hemisphere ta ƙunshi ba kawai a matsayin mai yawa da bayyane abubuwa, kamar yadda Orion ko Big Dipper. Akwai su da yawa ƙwarai ne mafi ƙaranci daga gare shi a size masaukai. A gwada da kananan size, duk da haka, ba sa irin wannan wani sarari suKe Figures kasa ban sha'awa. Constellation Dolphin - daya daga wadannan abubuwa. Yana bautarka a gwada karamin yanki, amma wasu m m abubuwa sanya, a da karkararta.

labari

Constellation Dolphin yara farko bayyana a lokacin sani da Girkanci mythology. A daya daga cikin Legends na bautãwa na teku, Poseidon hũra so Nereid Amfetrite. Belle ba ya so ya zama mai lover of marine rundunar da kuma gudu daga gare shi. Nereid ya taimaka dawo da dabbar dolfin. M Poseidon a sama ba shi da wani wuri a cikin sama. Tun daga nan, da ƙungiyar taurari na Dabbar kuma qawatawa Dome bisa kãwunansu.

jeri

A unobtrusive Dolphin haske isasshen makwabta. Constellation ne dake kusa da asterism Summer alwatika kafa ta irin wannan da aka sani manyan malaman matsayin Vega, Deneb da Altair. C. Dabbar kuma iyakar wani sarari suKe zane Eagle Pegasus Arrows Kananan doki, Foxes da Aquarius. Watch ta iya zama a cikin sarari dare kusan dukan ƙasar Rasha, fãce arewacin yankunan. Manufa lokaci - daga Yuni zuwa watan Satumba. A halayyar siffar na ƙungiyar taurari (reminiscent na wani shirwa) sa shi sauƙin recognizable, ba shakka, idan akwai wani girgije da kuma sauran abubuwan da za su iya rage Ganuwar.

asterism

Constellation Dabbar a cikin sama maida hankali ne akan wani yanki na 189 square digiri. Ya kunshi talatin jikinsu, wanda za a iya bambanta da ido tsirara. Duk da haka, kawai uku daga cikinsu iya kira fiye ko žasa da haske saboda halin hudu girma. Suna dukkan kunshe a cikin babban asterism wannan samaniya adadi, da ake kira akwatin gawa Ayuba. A cikin duka shi ne hudu taurari. Wannan shi ne wani alpha, beta, gamma da epsilon Dolphin.

Da farko haske

Beta ƙungiyar taurari ne mafi shahararren batu na wannan wani sarari suKe juna. Hantsinta aka kiyasta a 3,63m. Luminary aka kira Rotan da kuma 97 located in sadarwa. shekaru daga rana. Beta delphini - mahara tsarin hada da biyu aka gyara. Duka su kasance a cikin na aji F5 subgiants. A nisa tsakanin biyu taurari ne kadan, don haka na biyu da aka ba discernible a kowane kawo nesa kusa. Haske luminosity bangaren na tsarin ne 18 fiye da sau daya siga na rana. Wannan guda fasalin kasa a bayyane star ne 8 sau fi da cewa da mu star.

Abubuwa na tsarin juya tare da wani lokaci na 26.7 shekaru. A cewar nazarin da taro wuce hasken rana game da 2.5 sau.

alpha

Aka bayyana a sama luminary ne dan kadan na baya haske ta Saulotsin. Wannan ne alpha ƙungiyar taurari, kuma shi ne mai binary tsarin. Its main bangaren ne na aji B9. Daga rãnã shi ne rabu da nesa na 240 haske shekaru. A halayyar alama ga kowa da kowa taurarin irin wannan - mai sauri juya. kusa da ekweita, gudun kai 160 km / s. Wannan shi ne game da 70 sau fi da cewa da rana. Don kwanan wata, masana kimiyya sun ba m daidai da irin Saulotsina. A cewar wasu kafofin, ya tana nufin wani m babban-jerin taurari. A sakamakon wasu lissafin damar domin ayyana shi a matsayin subgiant a farkon juyin hanya.

Na biyu bangaren na tsarin m daga farko a 12 AU. Sun juya tare da wani lokaci na shekaru 17. A fili, Saulotsina abokin a hanyoyi da yawa kama da Shi'ira.

Asalin sunan

Sabanin al'ada, sunayen alpha da beta Dolphins ba Larabci ko Greek sharuddan. A karo na farko da sunan bayyana a cikin kasida, bayar a farkon na XIX karni a Palermo Observatory. Da ɗan baya, Birtaniya falakin Thomas Vilyam Vebb gano cewa sunayen da Saulocin Rotanev lokacin karanta daga dama zuwa hagu bada sunan Nicolaus Venator. Don haka ya kira mataimakin falakin Piazzi Kachatore. Wanda na biyu, Nicolaus kansa ko wa maigidan, ya marubucin wannan lakabi ne har yanzu asiri.

Wuraren ban sha'awa

Constellation Dabbar rike on da karkararta wajen fadin ba kawai haske. Ga suna located da nebula NGC 6891 da kuma 6905. NGC A farko daga gare su yana mai girma 11, da kuma na biyu - 12. Dukansu, kamar kansa, da samaniya juna, wajen kananan a size.

Bugu da kari, da ƙungiyar taurari Dolphin aka yi wa ado globular tari NGC 6934. Located kusa da epsilon shi wannan samaniya juna. Ã'a manyan globular tari ne halin da girma to 8,9m. Na biyu shi ne kama shi da wani abu, daga NGC 7006, kuma dauke su quite mai haske. Daga Duniya an raba ta game da 185 dubu haske-shekara.

Amma dai ba duka - akwai wani abu, Popular ƙungiyar taurari na Dolphin. Photo shi kawai isa ya sãmu, a cikin Internet. Wannan ne New Dolphin 2013. The makaman ne musamman a gaskiyar cewa jim kadan kafin ta bude, shi aka sani da rage haske na 17th girma. Lokacin da ta aka gano ta mai son falakin Koichi Itagaki, shi ne yawa da haske. Masana kimiyya sun} iyasta da star ba zato ba tsammani ya fara haskaka a 25 dubu sau karfi. Watakila shi da dangantaka da wani sabon classic. Wadannan abubuwa wakilci binary tsarin na fari Dwarf kuma m sanyi haske. Saboda da kananan nisa tsakanin abu gudana mafi taurari zuwa karami da aka gyara, da kuma shi ne mai tsanani. A sakamakon haka, jima ko daga baya akwai wani fashewa, a cikin abin da taurãri kasance m. Wadannan hasken wuta iya filashi akai-akai.

A kananan ƙungiyar taurari na Dolphin, kamar yadda shi ne, bayyananne ne a hankali da sanya idanu ilmin Taurari. Zai yiwu shi zai gabatar da karin surprises.