According to National Geographic, the planet Mars is visible without a telescope on many clear nights. The planets Jupiter, Mercury, Venus and Saturn are also viewable without the aid of magnification.
Emotional cheaters usually feel zero guilt for their extramarital relationship. But that is the very definition of emotional infidelity, and the word infidelity is used to describe this type of relationship for a reason... It breaches the bonds of marriage. Even if the body remains monogamous, the heart does not.
Infidelity in a committed relationship is a serious breach of trust. Regardless of whether or not you think you can get away with it, if you're tempted to cheat on your partner, you should first consider whether or not you want to be in the relationship at all.