Jump to content

Vancanneyt Sander

  • Content Count

  • Joined

  • Last visited

  • Days Won


Vancanneyt Sander last won the day on June 5

Vancanneyt Sander had the most liked content!

Community Reputation

305 Excellent

1 Follower

About Vancanneyt Sander

  • Rank
    SpaceWeatherLive Webmaster
  • Birthday 05/06/1985

Contact Methods

  • Website URL

Profile Information

  • Gender
  • Location
    Maldegem, Belgium
  • Interests
    Astronomy, Space, Space Weather, hiking, photography, badminton and many more

Recent Profile Visitors

5,570 profile views
  1. We sure can use some help with the German translation! I've send you a private message with some information.
  2. The region has still a fairly simple magnetic structure so even with the current development it doesn't pose a risk in solar flares. It's nice to see a region of the new cycle that lives long enough and after it's decay grew again. If it gets more complex, chances will rise for C-class flares. Solen is indeed a good source, it has a good automated spot detection and I used it a lot in the past. At SpaceWeatherLive we also do in depth analysis once the region has gained a potential for increased risk on strong solar flares. Once a region is complex enough we always do our Delta spot search and do the analysis in a news update. It's also possible to learn this by visiting our help section and read the articles about the magnetic classification of sunspots and the classification of spots, but it requires some training so please follow the sources and you'll learn quickly enough to judge if a region has potential. Also browse around the solar activity forum, Im sure there are some very good topics of active regions where we discussed active regions.
  3. yesterday was spotless, the day before not (AR12764 on June 1st), so it was a plus one: 125 days in 2020 en last 365 days 125 days. PS: yes the table updates daily 😉 somewhere after 0h UTC
  4. It's a research that hasn't been done because of the lack of data we have of the farside. Not every bright arc on Stereo is a sunspot region (unless they cause flares that can be observed from Stereo and is always very likely to be associated with a sunspot region) so it's difficult to get numbers from that side. In SC24 we have also seen some major activity on the farside but those regions never survived long enough to have some activity left on the frontside. In any case, we will have regions that will form on the visible solar disk. there's just not a pattern to it to which longitude they will form and the lifetime of any region is also very variable.
  5. Thinking of your suggestion, we decided to actually add it and don't wait for another 10 years 😉. But instead of remembering each day what the number of the past day was we decided to give it a little 'trend' icon indicating if the number of spotless days is shrinking or not.The trend icon is updated daily based on the data of one year but the month before (not really a point to compare it with previous day wouldn't it). The number of days in this year has now a percentage so it's easier to know if that number is a lot or not.
  6. No, we don't make it more complicating. We just stick to the facts. 1) measurements of x-rays is done by a sensor on a GOES satellite. These are pointed at the Sun. 2) it measures solar x-rays coming from the Sun, expressed in watts / m-2. Flares just behind the limb can be recorded as a lower magnitude because a part was blocked by the visible solar disk . This wasn't the case here as the magnetic loops where already above the limb. 3) you can see a CME in LASCO imagery but doesn't mean it is Earth directed. There was also no proton event and no electron event indicating a part was Earth directed. A magnetic complex sunspot region that's nearing the center of the disk has an increased possibility of Earth directed events even if its' nearing the other limb due to the effect of the Parker spiral. First particles of a strong solar flare arrive after 8 minutes: the solar protons and electrons (see EPAM and proton monitor), nothing was registered so not aimed at Earth. 4) only with real strong solar flares (particular long duration events) will have a proton event at Earth even if it's on the limb and even if the accompanied CME wasn't Earth directed. But not these minor impulsive solar flares.
  7. The source of the solar flares was behind the solar limb, only the magnetic loops from the region where visible resulting in a recorded elevated x-ray measurement with a M1.1 solar flare. The solar flare only caused a minor R1 radio blackout, no elevated solar protons or electrons. Because for the impulsive nature of the flare and because it was behind the limb, the flare will have no impact geomagnetically (no CME and due to the location even if there was one it wouldn't be aimed at Earth). Please read our help section about CME and their effectiveness, also learn a bit about the Parker spiral that is also at play with determining the geoeffectiveness of a CME.
  8. I got into space weather since 2001 and that was in the highs of solar cycle 23. Joining space weather in the solar minimum is indeed rather boring period so this M1 makes things interesting again. Unfortunately the region is now a spotless plage and doesn't pose a threat anymore but it's a good way to ramp up towards solar cycle 25. Looking forward for some real active regions with a more complex magnetic structure to get it really interesting again ☺️ of course we'll be here to keep everyone updated with interesting space weather events and along the way you'll learn to get more in depth of it.
  9. Well since we're almost out of the minimum (who thought we would have seen an M flare in the minimum 😮 ), it should be usefull in 10 years again 😉 .
  10. Yeah it was the whole module bar that had the same issue 😋 good thing you noticed it because we overlooked it (shame on me). It's now updated frequently and shouldn't happen again 🙂
  11. hmm you're indeed correct. i'll dig in the code tonight to see what went wrong! Update: identified the issue, should auto-fix itself in one of the next days and shouldn't happen again
  12. NASA answered this question here: https://go.nasa.gov/3en9Maf
  13. Like I said, the images of SDO and SOHO have filters that block 99,9% of the light in various wavelengths of the spectrum. The visible light is filtered out completely to reveal the photosphere and chromosphere (depending on the filter). With some filters, parts seem more bright but because the light was already filtered out for more than 99.9%, the difference between solar minimum and solar maximum is in terms of solar irradiance very very low. in the graph I posted you see the solar irradiance (without filters) as measured by several satellites and that confirms solar irradiance is only 0,09% higher in solar max.
  14. The filters of SDO have several filters filtering various wavelengths (expressed in Ångstrom) which reveal several parts of the solar atmosphere. These filters block nearly all visible light (except HMI Continuum). So a region can look bright, but it's not really bright because the filters block large parts of the visible spectrum (for example a h-alpha telescope reveals prominences sunspot regions and plages and arches in the near infrared spectrum but that's 0.6 Ångstrom or about 99,99% of the light). In terms of solar irradiance it's the case that in solar maximum the Sun solar irradiance is a bit more than in solar minimum, about 0,09%.
  15. Small sunspots with magnetic alpha or beta layout only produce very minor activity. Spotless plages do not produce activity, they just appear as bright zones on the Sun with neglectible activity (in these solar quiet conditions it can sometimes reflect a bit on the x-ray data but still not noteworthy). We speak of higher solar activity with sunspot regions with a stronger magnetic layout that's able to produces stronger activity. The number of spots doesn't say much about their complexity, but the more spots on the disk and the more spots in an active region, the magnetic complexity of those regions increases with a stronger likehood of producing solar flares and strong solar activity.
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you also agree to our Terms of Use and our Privacy Policy.