Now is the time when Mercury and Venus are visible in the morning sky. For those up before the sun, be sure to look for these jewels. Often referred to as morning stars, inner planets are either in morning skies before sunrise or evening skies after sunset. Inner planets never stray far from the sun. Mercury can be as far as about 25 degrees away and Venus can be just over 45 degrees away.Now is the time when Mercury and Venus are visible in the morning sky. For those up before the sun, be sure to look for these jewels. Often referred to as morning stars, inner planets are either in morning skies before sunrise or evening skies after sunset. Inner planets never stray far from the sun. Mercury can be as far as about 25 degrees away and Venus can be just over 45 degrees away.