Sunspot number today. For further details see Solar Cycle Progression.

Sunspot number today Daily Sun: 19 Nov 25 Expand: labels | no labels These sunspots are stable and quiet. Typically to qualify, a sunspot region must be large enough Stay updated with real-time solar and auroral activity data on SpaceWeatherLive. Until a new and equally angry sunspot emerges, geoeffective solar activity should remain low. Multi-year forecast of the smoothed monthly sunspot number and the smoothed monthly F10. Time range: 1/1/1818 - last elapsed month (provisional values) Data description: Daily total sunspot number derived by the formula: R= Ns + 10 * Ng, with Ns the number of spots and Ng the number of groups counted over the entire solar disk. These bulletins are levels of severity of the solar activity that can be expected to impact the Earth’s environment. 7 cm flux (F10. of Commerce, NOAA, # Space Weather Prediction Center and the U. -- J. How to read these graphs? Similar to the bulletins put out by the NWS local forecast offices, SWPC provides Alerts, Watches and Warnings to the public at large about what to expect from Space Weather. Air Force. Click for larger images. The peak of sunspot activity is known as solar maximum and the lull is known as solar minimum. 2 days ago · Explore today's real-time solar data, including live sunspot images, solar spectrum updates, and nautical twilight times. 7cm Flux Forecast Weekly Highlights and 27-Day Forecast Reports Forecast Verification Geoalert - Alerts, Analysis and Forecast Codes Geophysical Alert Solar and Geophysical Real-Time solar activity and auroral activity data website Notifications Timeline Planetary K-index Planetary K-Index Dashboard Test Predicted Sunspot Number And Radio Flux Real Time Solar Wind Regional Geoelectric 1D-3D statistical comparisions Relativistic Electron Forecast Model Nov 8, 2023 · Free solar-terrestrial data displayed on your web page or site, updated every 3-hours. The images are provided by the Solar Dynamics Observatory (SDO) mission. The data in this chart reflects the past six months. Results, however, vary greatly, since the measurement strongly depends on Current Observations from NASA’s Spacecraft, Solar Dynamics Observatory (SDO) and Solar and Heliospheric Observatory (SOHO). On this occasion, the data are presented in a new array of files, containing additional values that were not present in the original series. Included are the Solar Flux, K-Index, and A-Index numbers for the past six months. Oct 28, 2025 · Discover, visualize, and download solar data from a variety of missions, instruments, and laboratories. It gives us a nice idea of the amount of solar flares in relation to the sunspot number. The largest flare was a C5. Current solar surface (white light) Sunspot Number Daily, monthly and 13-month smoothed sunspot numbers for the past 13 years, and 12-month ahead predictions. Number of C, M and X-class solar flares per year The graph below shows us the number of C, M and X-class solar flares that occur for any given year. 7 flare (SIDC Flare 4026), peaking at 23:38 UTC on April 4, associated with SIDC Sunspot Group 455 (NOAA Active Region 4043; beta), which has begun to rotate over the west limb. May 9, 2025 · For scale, Earth and Jupiter are shown at the bottom right of the image, highlighting the massive size of the Sun and its sunspots. This link will take you away from this NASA site to Dr. 2 days ago · This chart is based on daily sunspot and solar flux numbers reported by NOAA. Locations Valid at 13/2400Z Nmbr Location Lo Area Z LL NN 2 days ago · 2A) Current impact on the monthly sunspot number based on the Boulder (NOAA/SWPC) sunspot number (accumulated daily sunspots / month days). 7), and the geomagnetic planetary 1 day ago · Sunspots NOTICE: There is an image outage of the Sunspot images due to a cooling water line burst in the Joint Science Operations Center (JSOC) at Stanford University on 2024-11-26. # Joint USAF/NOAA Solar Region Summary SRS Number 318 Issued at 0030Z on 14 Nov 2025 Report compiled from data received at SWO on 13 Nov I. Hathaway's new pages. 7cm Flux Forecast Weekly Highlights and 27-Day Forecast Reports Forecast Verification Geoalert - Alerts, Analysis and Forecast Codes Geophysical Alert Solar and Geophysical A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. With your help we can keep SpaceWeatherLive online! Nov 13, 2025 · The purpose of the predictions is to provide future statistical estimates of sunspot number, solar radio 10. An observer Real-Time solar activity and auroral activity data website Daily sunspot number (yellow), monthly mean sunspot number (blue), smoothed monthly sunspot number (red) for the last 13 years and 12-month ahead predictions of the monthly smoothed sunspot number: SC (red dots) : prediction method based on an interpolation of Waldmeier's standard curves; It is only based on the sunspot number series. The Sunspot Number S cientists track solar cycles by counting sunspots -- cool planet-sized areas on the Sun where intense magnetic loops poke through the star's visible surface. How Sunspot Numbers are Computed Today An observer computes a daily sunspot number by multiplying the number of groups he/she sees by ten and then adding this product to his total count of individual spots, same way that Wolf did. Now you can join the sunspot count, with the On this page you'll find an overview of all the visible sunspot regions on the Sun together with their properties, images and the chances on solar flares or proton events. org : Includes information on active regions and solar activity from the Global H-alpha Network, Solar and Heliospheric Observatory (SOHO), GONG+, and the National Oc Multi-year forecast of the smoothed monthly sunspot number and the smoothed monthly F10. Therefore, R. # Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 322 Issued at 2200Z on 18 Nov 2025 IA. Today, it is beginning a 2-week trip around the farside of the sun. Counting sunspots is not as straightforward as it sounds. For proper tracking of those changes, the present version is numbered 2. Each visible spotted region that qualifies for active region designation will have its own individual spot count for the day. 4 days ago · Sun today — sunspots and active regions. Suppose you looked at the Sun through a pair of (properly filtered) low power binoculars -- you might be able to see two or three large spots. Oct 16, 2024 · Every 11 years, the Sun gets very active and the number of sunspots — dark, cooler areas on the Sun — increases dramatically. Sunspots can change continuously and may last for only a few hours to days; or even months for the more intense groups. This page is updated daily and the sunspot images every hour. The total number of sunspots has long been known to vary with an approximately 11-year repetition known as the solar cycle. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines. Wolf only compiled monthly means and What you are going to do: Using daily pictures collected by the SOHO spacecraft, you are going to observe and record information about the currently visible sunspot groups. Track sunrise, sunset, golden hour, and sun angles worldwide. Historically, an index called the 'sunspot number' has been used to quantify the abundance of spots. View sunspot regions, magnetic classifications, area in MSH, flare probabilities, and live solar activity updates. It is updated once per day. List of sunspots and active regions with coordinates, Carrington longitude and other related data. . Dr.  Product contains a number of long running data sets, further information for each indice is available online. A. CM (red dashes) : method (from K. Want to track solar High frequency and VHF radio propagation data, solar, sunspot cycle, and geomagnetic real-time and historic data, as well as forecasts. See the latest sunspot data, solar flares, coronal holes, coronal mass ejections, and other solar activity indicators. 7. 2 days ago · Sunspot Estimated international sunspot number The number in () is the number of observatory used for SSN calculation. A sunspot number of zero indicates there were no visible sunspots on that date; a blank indicates that no observations were taken. This page is daily updated around midnight. MORE INFO Nov 13, 2025 · Sunspot Numbers for VOACAP The SSN source of (near-)current sunspot numbers to be used with VOACAP: SIDC (Belgium). You can see that this current cycle, Cycle 24, is a weak cycle, compared to the last few. The sunspot region information used to compute the daily sunspot number incorporates reports from as many as six observatories. Yearly mean and 13-month smoothed monthly sunspot number since Interactive solar tracker map with sun position, day/night terminator, and sun data by location. Strong flares are unlikely today. For centuries, scientists have been counting sunspots to track this 11-year solar cycle, watching as the Sun transforms from a blank, spotless disk during solar minimum to one freckled with sunspots during solar maximum. Monitoring sunspots in real-time helps scientists track solar activity and improve space weather predictions. We plot here, daily updated, the predictions for the sunspot numbers for solar cycle 25, by the NOAA/NASA/ISES panel (from 2019) and from a prediction based on the timing of the so-called terminator event (McIntosh et al. SolarMonitor. Notifications Timeline Planetary K-index Planetary K-Index Dashboard Test Predicted Sunspot Number And Radio Flux Real Time Solar Wind Regional Geoelectric 1D-3D statistical comparisions Relativistic Electron Forecast Model Real-time data on solar and auroral activity, including flares and geomagnetic storms. The predicted progression for the current solar cycle (Cycle 25) is given by the magenta line, with associated uncertainties shown by the shaded regions. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. Dept. 2 days ago · Sunspots NOTICE: There is an image outage of the Sunspot images due to a cooling water line burst in the Joint Science Operations Center (JSOC) at Stanford University on 2024-11-26. This chart is updated every three hours (at 15 minutes past the What is the Current Sunspot Number? The abundance of sunspots on the Sun varies on timescales from a few hours to many years. The web page also provides solar wind and magnetic field data, geomagnetic storm indices, and space weather news. The observed and predicted Solar Cycle is depicted in Sunspot Number in the top graph and F10. Updated multiple times daily. What do you think we can learn from watching sunspots? Don't EVER look directly at the Sun, with or without a telescope (unless you have the proper filters). 1 day ago · Below you'll find a daily report brought to you by the NOAA about the solar regions during the past day and the prediction for the coming days. 3 days ago · This chart is based on daily sunspot and solar flux numbers reported by NOAA. Explore today's active sunspots on the Sun with real-time data. Since July 1st 2015, the original Sunspot number data have been replaced by a new entirely revised data series. Credit: NASA/SDO Sunspot number: 60 What is the sunspot number? Updated 19 Nov 2025 On this page you'll find an overview of all the visible sunspot regions on the Sun together with their properties, images and the chances on solar flares or proton events. This chart is based on the NOAA Geophysical Alert Message (updated every three hours). Stay updated on current sky activity with accurate solar observations. Apr 20, 2025 · Today's estimated international sunspot number (ISN): 125, based on 15 stations. Time range: current month. This chart is updated every three hours (at 15 minutes past the 2 days ago · Spot Count and Daily Sunspot Number : The spot count for an active region with only 1 spot visible starts with a minimum number of 11 (1 spot group = (10) + 1 visible spot = (1) , making a grand total of 11). The estimated international sunspot number (EISN) is a daily value obtained by a simple average over available sunspot counts from prompt stations in the SILSO network. Monthly and smoothed sunspot number - The monthly mean sunspot number (blue) and 13-month smoothed monthly sunspot number (red) for the last five cycles. There are currently 4 numbered sunspot regions on the disk. Data description: Daily estimation of the Sunspot Number Progression of solar cycle 25 Sunspot numbers including predictions Clicking on the plot opens an interactive version. 2B) Boulder SN current month average to date. Predicted Sunspot Numbers and Radio Flux Report and Forecast of Solar and Geophysical Activity Solar Cycle Progression Space Weather Advisory Outlook USAF 45-Day Ap and F10. WE'RE OUT OF THE STRIKE ZONE: Active sunspot 4274 is no longer facing Earth. Also contains solar and radio propagation information applicable to ham radio including solar conditions, space conditions, online propagation tool, online SN to SFI/SFI to SN conversion tool, online Aurora/Auroral activity to latitude conversion tool, and online K-Index to Signal Noise conversion tool. Hathaway is creating his own website, which will host sunspot cycle data and predictions. Many refer to the sunspot number as a Wolf number or count (or as a Zurich Sunspot Number). Current number of sunspots is indicated When sunspots do not occur, it will be displayed as “0”. Regions with Sunspots. Today’s Sunspot Activity on the Sun’s Outer Layer (SDO – HMI; NOAA/NASA) Current Solar Activity 2 days ago · Derived from num of sunspots + groups. Recent Major Solar Flare Activity (usually reported within 30 minutes of event peak) NOAA (American) Sunspot Number This number is reported daily around 0225Z and reports the number of sunspots observed in the previous 24 hour period Mar 15, 2017 · The Sunspot Cycle (Updated 2017/03/15) Please note: Dr. This site explains how the "sunspot number" is computed. 7cm Radio Flux in the bottom graph. Status updates are provided at SDO's JSOC Emergency Resources page. THE GOLDEN COMET IS FALLING APART: Last week, California Today, much more sophisticated measurements of solar activity are made routinely, but none has the link with the past that sunspot numbers have. :Product: Solar Region Summary :Issued: 2025 Nov 14 0030 UTC # Prepared jointly by the U. It is thus another way of seeing how a solar cycle evolved over time. 2 days ago · Below is a graph of the current solar cycle: observed monthly sunspot number (thin yellow), observed smoothed monthly sunspot number (thick turquoise) and predicted smoothed monthly sunspot number (magenta crosses). David Hathaway, a member of the MSFC solar physics group for 29 years, transferred to NASA's Ames Research Center in California, and retired in December 2016. Denkmayr and P. Solar indices for 19 Apr 2025 Noticeable events summary Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive All times in UTC Previous rotation Previous day Calendar Space weather is a consequence of the behavior of the sun, the nature of earth’s magnetic field and atmosphere, and our location in the solar system. Solar flare alerts: SMS Text. During that time, all of its flares and CMEs will miss our planet. S. 2020). The Sep 7, 2024 · Monthly and smoothed sunspot number - The monthly mean sunspot number (blue) and 13-month smoothed monthly sunspot number (red) for the last five cycles. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z Solar activity has been at low levels for the past 24 hours. 0. com. There are currently twelve numbered active regions visible on the 3 days ago · Solar Activity Proton Flux refers to the number of high-energy protons coming from the Sun and reaching the Earth's vicinity. No daily data are provided before 1818 because daily observations become too sparse in earlier years. The index is still in wide use today. :Product: Report of Solar-Geophysical Activity :Issued: 2025 Nov 18 2200 UTC # Prepared jointly by the U. McKinnon International Sunspot Number - Brief Description sunspot maximum and minimum 1610-present; annual numbers 1700-present; monthly numbers 1749-present; daily values 1818-present; and sunspot numbers by north and south hemisphere. Analysis of Solar Active Regions and Activity from 17/2100Z to 18/2100Z: Solar activity 1 day ago · Sun news November 18: Update on Solar Cycle 25 as solar max continues (11 UTC November 17 – 11 UTC November 18) NOAA has announced October 2025’s sunspot number, which is a measure of long Apr 5, 2025 · Solar Active Regions and flaring Solar flaring activity was low, with only C-class flares recorded over the past 24 hours. Track real-time solar and auroral activity with live data and updates on SpaceWeatherLive. For further details see Solar Cycle Progression. From 0 to 250, higher better Predicted Sunspot Numbers and Radio Flux Report and Forecast of Solar and Geophysical Activity Solar Cycle Progression Space Weather Advisory Outlook USAF 45-Day Ap and F10. This prediction is based on a nonlinear curve fit to the observed monthly values for the sunspot number and F10 2 days ago · Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 324 Issued at 2200Z on 20 Nov 2025 IA. znyiuy czmph tsyz jbibbypd pzee jld cabohe zmpp fedsuc llzv bgtt nofl owfiewf ljunh otjqk