- Sun in Sagittarius conjunct Mercury Rx: 21 deg
The Sun's inferior conjunction to Mercury is the halfway point of this retrograde. Answers to questions that Mercury Rx has been asking may be presented today. Too, there can be clarity around an ongoing story, as truths are revealed.
Keep in mind that this is only a beginning, and Mercury is still Rx. So this is not the last word. But, you can trust what you learn today, and it will be crucial to how you handle the rest of this Mercury retrograde.
This is a "New Moon" influence. The superior conjunction acts as a Full Moon influence. To put this into perspective, the last Sun/Mercury conjunction (15 deg Libra on October 8th) was a superior conjunction - the culmination connected to today's new beginning. The next conjunction (February 17th, 2018 at 28 deg Aquarius) will be another culmination or result.