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.
Probably the most commonly cited cause of infidelity is a sense of emotional disconnection from a partner. The person committing the infidelity will often describe having felt unappreciated, lonely, and sad. These emotions can often lead to the secondary feelings of anger and resentment.