אור נגדי (אסטרונומיה) (Hebrew Wikipedia)

Analysis of information sources in references of the Wikipedia article "אור נגדי (אסטרונומיה)" in Hebrew language version.

refsWebsite

Global rank Hebrew rank

1skyandtelescope.org

low place

low place

1universetoday.com

3,691^st place

3,011^th place

6^th place

48^th place

7,869^th place

5,030^th place

archive.org

Sheehan, William (1995). The immortal fire within: the life and work of Edward Emerson Barnard. Cambridge University Press. pp. 69–70. ISBN 0-521-44489-6.

skyandtelescope.org

"Take the Gegenschein Challenge". Sky & Telescope. 2015-10-14. נבדק ב-2022-08-16.

txstate.edu

news.txstate.edu

Blaschke, Jayme (17 באוגוסט 2021). "'Celestial Sleuth' corrects historical record on gegenschein discovery". Texas State University Newsroom. נבדק ב-15 בספטמבר 2021. {{cite web}}: (עזרה)תחזוקה - ציטוט: url-status (link)

universetoday.com

Dickinson, David (2016-02-03). "A Challenge in Visual Athletics: Hunting the Gegenschein". Universe Today. נבדק ב-2022-08-16.