For faster navigation, this Iframe is preloading the Wikiwand page for Eguzki-argitasun.

Eguzki-argitasun

Eguzkiaren argitasun, erradio eta tenperatura efektiboaren bilakaera egungo eguzkiarekin alderatuta. [1]

Astrofisikan, eguzki-argitasuna izarren argitasuna adierazteko erabiltzen den argitasun unitatea da. Eguzkiak duenaren berdina da.

Balioa, wattetan adierazita (W), honako hau da:[2]

Sistema zegesimalean, eguzki-argitasunaren zenbakizko balioa 107 aldiz biderkatzen da, watt (edo segundoko joule) segundoko ergetik ordezkatzen baita. Eguzkiaren argitasuna gutxi gorabehera honela kalkulatzen da:

Eguzki masaren balioa gutxi gora-behera 2×1033 g. denez, unitate hauetan eguzki argitasunaren zenbaki balioa eguzki masaren bikoitza da gutxi gora-behera. Hau da, L / M ~ 2.

Izarren argitasuna

[aldatu | aldatu iturburu kodea]
Izena Beste izena Izar mota Sailkapena Argitasuna (LSol)
Proxima Centauri V645 Centauri Nano gorri M5.5Ve 0,000138
Van Maanenen izarra GJ 35 Nano zuri DZ7 0,00018
61 Cygni A V1083 Cygni Nano laranja K5.0V 0,15
Eguzkia Nano hori G2V 1
Vega Alpha Lyrae Sekuentzia nagusiko
izar zuri
A0V 37
Aldebaran A Alpha Tauri Erraldoi laranja K5III 350
Gacrux Gamma Crucis Erraldoi gorri M3.5III 1500
Bellatrix Gamma Orionis Erraldoi urdin B2III 6400
Aludra Eta Canis Majoris Supererraldoi urdin B5Ia 66.000
Pistola Izarra V4647 Sagittarii Izar aldakor urdin argitsu >1.000.000

Erreferentziak

[aldatu | aldatu iturburu kodea]
  1. (Ingelesez) Ribas, Ignasi. (2010eko otsaila). Solar and Stellar Variability: Impact on Earth and Planets, Proceedings of the International Astronomical Union, IAU Symposium. in: The Sun and stars as the primary energy input in planetary atmospheres. 264, 3–18 or.  doi:10.1017/S1743921309992298. Bibcode2010IAUS..264....3R..
  2. iau.org, 2015

Kanpo estekak

[aldatu | aldatu iturburu kodea]
Astronomia Artikulu hau astronomiari buruzko zirriborroa da. Wikipedia lagun dezakezu edukia osatuz.
{{bottomLinkPreText}} {{bottomLinkText}}
Eguzki-argitasun
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?