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Uploaded July 2026 | Updated September 2026, 3 hours ago

$Solar Surge Prominences & Active Coronal Arches — H-Alpha Time-Lapse | July 6, 2026 This H-alpha time-lapse from July 6, 2026 captures one of the more dynamic active region events Ive recorded — multiple surge prominences and active coronal arches erupting and evolving over just a few minutes of real time. What youre seeing: Surge Prominences (right side of active region) Starting at 0:00, a classic surge prominence launches violently upward along open magnetic field lines driven by a localized magnetic reconnection event associated with a sub-flare. Unlike the graceful arc of a quiescent prominence, surges travel in straight or steeply angled paths — a direct signature of the open field geometry. At around 0:06 watch the fallback phase: the driving energy cuts off and the plasma, having not reached solar escape velocity (~618 km/s), drains back down along the exact same linear pathways under solar gravity. This bidirectional flow along identical field lines is one of the defining characteristics that distinguishes a surge from other prominence types. A second, broader surge erupts from the same location around 0:12, cutting through the corona at a steep angle with noticeably more volume than the first. Active Coronal Arches (left side of active region) Throughout the sequence, a set of active coronal arches anchored to the left of the main structure traces closed magnetic field lines connecting regions of opposite magnetic polarity. The plasma acts as a visible tracer of otherwise invisible magnetic geometry — you can follow individual threads propagating along the curve of the loops and draining back into the chromosphere. Transition phase at surge tips (0:02–0:04) Look closely at the leading edge of the first surge — the plasma begins fragmenting into disconnected blobs, showing characteristics intermediate between a surge and a true spray prominence. This transition phase occurs when plasma kinetic energy approaches the threshold of magnetic confinement. Equipment: Telescope: TEC160FL refractor Filter: Solar Spectrum 0.3Å H-alpha etalon with 4x telecentric Camera: IMX174M Mount: ZWO AM7 Location: Arizona Processing: SharpCap • AutoStakkert! • Affinity Photo The Solar Observers Handbook — my comprehensive guide to solar observing and imaging — is now available at azastroguy.com and on Amazon. Softcover, signed softcover, and PDF versions are available. 🔔 Subscribe for regular solar time-lapses, tutorials, and solar feature breakdowns. If you found this video of interest, and are considering investing in a solar telescope or equipment, I would appreciate you using one of my affiliate links. If you make a qualifying purchase it will cost you nothing, but I will receive a small commission. Thanks! Agena Astro: https://bit.ly/3qfWaZS Highpoint Scientific: https://bit.ly/4p7f7HA Lunt solar products: https://luntsolarsystems.com/?rfsn=87... Want to buy me a coffee? Its appreciated! https://buymeacoffee.com/azastroguy #SolarAstronomy #HAlpha #Astrophotography #SolarImaging #Prominences #SurgeProminence #SolarPhysics #azastroguy #Sun #NASA$ $The Sun in 3 wavelengths Three views of the same active region, each revealing a different layer of the Sun. The yellow view is a 540 nm photosphere image. It shows the sunspot in sharp detail, including the dark umbra, surrounding penumbra, smaller pores, and the fine background granulation of the solar surface. The violet view is Calcium K at 393.4 nm, showing the upper photosphere and lower chromosphere. Here, bright magnetic plage stands out strongly around the active region. Fine sunspot detail is reduced compared with white light, but the larger pores remain visible. The orange view is Hydrogen-alpha at 656.28 nm, revealing the Sun’s mid chromosphere. Instead of granulation, we see fibrils and mottled chromospheric structure shaped by magnetic fields. Plage remains visible as brighter patches, while many pores are partly hidden beneath the overlying H-alpha fibril canopy. Together, these wavelengths show why the Sun looks so different through different filters: each one samples a different height and physical process in the solar atmosphere. Want to learn how I did this? Check out my comprehensive Solar Observers Handbook: https://www.azastroguy.com/solar-handbook If you found this video of interest, and are considering investing in a solar telescope or equipment, I would appreciate you using one of my affiliate links. If you make a qualifying purchase it will cost you nothing, but I will receive a small commission. Thanks! Agena Astro: https://bit.ly/3qfWaZS Highpoint Scientific: https://bit.ly/4p7f7HA Lunt solar products: https://luntsolarsystems.com/?rfsn=87... Want to buy me a coffee? Its appreciated! https://buymeacoffee.com/azastroguy I used the following equipment to capture this sequence: TEC160FL refractor Baader 160mm ERF Solar Spectrum 0.3Å Ha etalon Solar Spectrum 0.5Å CaK etalon Player One 540nm photosphere filter Baader 4x Telecentric Player One Apollo-M cameras Software: Sharpcap Pro, Autostakkert, ImPPG, Affinity Photo 2$

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