A thing to remember here is that these posts are strictly meant for the particular planet position. Like, today we are looking at Mercury in Capricorn, so the description given here may change for you if your Mercury is although in the sign of Capricorn but with conjunction with or aspected by other planets.
So, lets see what Mercury can do in Capricorn without any conjunction or aspect from any other planet. 1st lets see what these 2 things represent --
Mercury represents communication skills, marketing, calculative ability, younger siblings, hobbies, skills with hands, intelligence, quick decision making, logical thinking, youthfulness etc.
Capricorn is the 10th sign of zodiac belt, hence it represents many things related with 10th house of horoscope like Law and Order, Government, Authority, Organisation, Discipline etc. Besides it also represents World outside your home and people, Fear and Anxiety etc. Capricorn is consisted of next 2 and half Nakshatra, i.e. Uttar-Ashadha, Shravana and Dhanishtha. Capricorn is ruled by Saturn and that's why it represents Fear and Anxiety.
So now communications are going to be limited and serious, as Mercury is in the sign ruled by Saturn who is all about limitation and seriousness. So, these people are specifically the one who won't blabber around unnecessarily. These people will speak but when they need to and when they have to. Their communication is always surrounded by some purpose. They like to speak to authority, like with the person of some rank or status. So, even if they are working in a school, they would like to speak with Principal of School rather than administrative staff. Capricorn is sign of rank, status and authority, so whenever they communicate or speak, they speak with authority, with 100% confidence. They can become Government Spokesperson or someone who is an activist and takes government on tasks. As their speech is all about authority, they check 10 times before they speak and make it absolutely perfect. Overall, their communications are very real and serious.
As always, Mercury's role in Capricorn can be effected by the nakshatra Mercury is in. Like, if Mercury is in Uttar-Ashadha Nakshatra, we have to look at Sun's position as Uttar-Ashadha's lord is Sun. If Mercury is in Shravana Nakshatra, then we need to look at Moon's position as Shravana's lord is Moon. Likewise, in Dhanishtha Nakshatra, it will be effected by Mars.
Again, as discussed above, Saturn's position is going to decide how Mercury is going to behave in this sign.
Tomorrow, Mercury in Aquarius.
Vishal S Saxena - Astrologer