APOD: 2007 February 1 - A Tail of Two Hemispheres

Deep-Sky Objects – Flagstaff Altitudes

The Sky This Month - February 2007

SOHO (Solar and Heliospheric Observatory) - eoPortal

Flash Flash Revolution - View Single Post - Terry's Astronomy Thread.

I'd Like To Go South Please Now.

January 2019 issue of Nightfall, a quarterly journal about

Saturn

The Caldwell Objects

Comets - Crystalinks

A Comet, Christ's Birth, and Josephus's Lunar Eclipse

The Magnificent Tail of Comet McNaught