July 10, 2016
A short Summary of Carrington Rotation 2178
Carrington Rotation 2178 covered the time period from 2016-06-06 – 0557 UT until 2016-07-03 – 1040 UT.
Submitted observations can be viewed in ALPO’s Solar Archive for CR2178:
http://www.alpo-astronomy.org/gallery/main.php?g2_itemId=83716
CR2178 was the first rotation since the solar maximum that started with no reported Active Region and ended with no regions during the last 10 days. In fact only during 16 days, the Sun’s activity showed ARs and Sunspots. The total number of regions that could be observed was limited to 7. The largest Region AR2553 reached its maximum size at 330 millionths only three days after it emerged from the Eastern Limb, while the Sun’s total active regions maxed out the same day at 500 millionths. The largest number of Sunspots (12) were counted when AR2552 was the only region three days before.
Despite the low activity during the rotation, observers did submit 401 observations to the ALPO Solar archive. Thanks to all who observed the Sun for their dedication. Following are a few observations submitted by Dave Tyler, Howard Eskildsen and Theo Ramakers, including an “empty” Sun, but all submitted observations can be seen by following the link above.
Your Solar Section Team
