Night Sky and Light Pollution
Wani katafari na gaskiya na taurari. Ka ja slider din gurɓatar haske kuma ka duba yadda taurãri ke faɗuwa.
ESO/S. Guisard (www.eso.org/~sguisard) (CC BY 4.0)
Night Sky and Light Pollution
Mẽne ne wannan? Hasken fitilu, da ginshiƙai da alamun suna sanya sama ta dare ta haske, kuma wannan haske yana ɓoye taurãri mafi raɗaɗi. Wannan kayan aiki na nuna taurari na gaskiya daga cikin katafaren taurari da kuma yawansu na faɗuwa yayin da sama ke yin haske, daga wurin da yake da duhu sosai zuwa tsakiyar birnin.
Yadda ake amfani da shi: Zaɓi bayani wanda ya fi kama da samarka, ko kuma ka ja slider na zafin haske. Ka ja nuna sama don ka yi bincike.
Yaya samarka take?
Zaɓi ɗayan da yake kama da sama inda kake zaune. Kowane hoton yana nuna taurãrin Orion da zaka iya gani a wannan mataki.
Wuraren taurari da haskensu daga Yale Bright Star Catalogue. Ba a tattara wurinka ba.
Yi wannan
- Fara a mataki na 1 (a wurin da yake da duhu sosai) kuma ka kwafa zuwa 9.Bayani: Daga kimanin taurari 9,000 a cikin dukan sama, kawai kusan 400 aka bar su a cikin tsakiyar birnin, kuma ba a kanka sai rabin sama a kowane lokaci.
- Zaɓi Orion kuma ka kwatanta mataki na 4 da na 8.Bayani: Kuma lalle ne, haskensa ya kasance mai kyau ga waɗanda suka yi ĩmãni.
- A cikin dare mai haske na gaba ba tare da wata ba, ka fita daga barin haske mai zuwa kuma ka yi jinkiri 20 mintina domin idanunka su daidaita.Bayani: Find the picture here that matches what you see: that is roughly your Bortle level. star name Kuma kõwane ƙungiya daga taurãri suna aiki.
The ideas behind it
Mẽne ne zai sãmu wani abu?
Zazzabin haske shi ne mafi sauki ga gyara: ka rufe shi kuma ya tafi. Ka nuna fitilun waje zuwa ƙasa kuma ka kare su, ka yi amfani da fitilu masu launuka mai zafi, kuma ka bici fitilun da ba a buƙata ba.
Sources: star positions and brightness from the Yale Bright Star Catalogue (5th revised edition). star name A'aha! Bortle, "Introducing the Bortle Dark-Sky Scale", Sky & Telescope, February 2001. Mai ba da shawara kan haske: DarkSky International. Ba'a tambayi wurinka ba ko kuma an adana shi.
Hasken halitta wanda yake haske a inda ba a buƙata ba, musamman zuwa sama, yana sanya sama ta dare gaba ɗaya ta yi haske kuma ya ɓoye taurari.
More in the glossary →A 1 zuwa 9 ma'auni na yadda duhu da dare sama ne, wallafa ta da amateur astronomer John E. Bortle a cikin 2001. Mataki 1 shine mafi duhu sama a kan ƙasa; mataki 9 shi ne tsakiyar birni.
More in the glossary →Ma'aunin da masu kimiyya na sararin samaniya ke amfani da shi ga haske. Girman adadin yana nufin mafi duhu: manyan taurãri suna kusa da girman 0 ko 1, kuma mafi duhu wanda zaka iya gani daga wurin da yake da duhu sosai suna kusa da girman 7 zuwa 8.
More in the glossary →Idanunka suna da sauki su zama masu jin dadi a cikin duhu. Yana ɗaukar minti 20 zuwa 30, kuma kallo guda akan allo mai haske ko fitila yana sharewa da yawa daga gare shi.
Jadawalin bayanai (zaɓin rubutu)
| Bortle class | star name | star name |
|---|---|---|
| 1 | 7.8 | 9,093+ |
| 2 | 7.3 | 9,082+ |
| 3 | 6.8 | 9,002+ |
| 4 | 6.3 | 7,008 |
| 5 | 5.8 | 4,103 |
| 6 | 5.3 | 2,319 |
| 7 | 4.8 | 1,267 |
| 8 | 4.3 | 718 |
| 9 | 3.8 | 409 |
Kayan aiki da karatu suna amfani da siffofin sauƙi don koyon kawai. Ba za a iya amfani da su don tafiyar ruwa, shirin aiki ko wani hukuncin aiki ba. Shaidu ne kyauta kuma ba a amince da su ba. Ka karanta bayanin da ke cikin shirin koyarwa