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In addition to the benefit of this capability in solar studies, SOHO/LASCO can see many comets which pass very close to the Sun, called 'sungrazers'. Observers on Earth rarely see these objects as they are obstructed by the Sun's glare and Earth's atmospheric scattering at sunrise and sunset. SOHO/LASCO has seen not only many known comets, but discovered many more NEW sungrazing comets. At the time of this writing, the discovery count is approaching 3000.

There are nearly 1800 comets and trajectories plotted in these visualizations which covers the time frame from January 1996 to May 2010 at the rate of one frame of the movie corresponding to one day. The great majority of these comets are Kreutz group members (the red trails).
The trails are color coded based on group membership.



Important Notes and Caveats:

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The comet is small and has a short orbital period around the Sun. It belongs to the “Marsden group” of comets, which are thought to be related to the larger comet 96P/Machholz. The group is named after the late scientist Brian Marsden, who first recognized the group using SOHO observations.To learn more about the discovery and SOHO, visit: https://science.nasa.gov/science-research/heliophysics/esa-nasa-solar-observatory-discovers-its-5000th-comet/Since the early 2000s, the Sungrazer Project has allowed anyone with a computer to search for comets in images taken by the SOHO spacecraft.To learn more about the Sungrazer Project, visit: https://science.nasa.gov/citizen-science/the-sungrazer-project/ || ", "release_date": "2024-03-27T10:00:00-04:00", "update_date": "2024-03-26T15:33:26.792521-04:00", "main_image": { "id": 1090387, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014500/a014552/SOHO4995.00030_print.jpg", "filename": "SOHO4995.00030_print.jpg", "media_type": "Image", "alt_text": "This annotated movie from the European Space Agency & NASA’s SOHO observatory shows the 4,995th comet discovered by the spacecraft as it speeds toward the Sun on March 14, 2024.Credit: ESA/NASA/SOHO/Karl Battams", "width": 1024, "height": 757, "pixels": 775168 } }, { "id": 13622, "url": "https://svs.gsfc.nasa.gov/13622/", "page_type": "Produced Video", "title": "Counting Comets", "description": "Music Credit: Birds in The Rain by Robert GuerrierComplete transcript available.Watch this video on the NASA Goddard YouTube channel. || cometthumb.jpg (1920x1080) [404.7 KB] || cometthumb_print.jpg (1024x576) [192.3 KB] || cometthumb_searchweb.png (320x180) [56.6 KB] || cometthumb_web.png (320x180) [56.6 KB] || cometthumb_thm.png (80x40) [5.1 KB] || 13622.Counting_Comets.Mobile720.mp4 (1280x720) [108.5 MB] || 13622.Counting_Comets.Twitter1080.mp4 (1920x1080) [40.1 MB] || 13622.Counting_CometsFB.mp4 (1920x1080) [215.9 MB] || 13622.Counting_Comets.YouTube1080.mp4 (1920x1080) [284.3 MB] || 13622.Counting_Comets.YouTube1080.webm (1920x1080) [20.2 MB] || Counting_CometsAPR.mov (1920x1080) [4.4 GB] || 13622Comets.en_US.srt [3.6 KB] || 13622Comets.en_US.vtt [3.7 KB] || ", "release_date": "2020-05-19T10:00:00-04:00", "update_date": "2023-05-03T13:44:57.683699-04:00", "main_image": { "id": 385035, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013600/a013622/cometthumb.jpg", "filename": "cometthumb.jpg", "media_type": "Image", "alt_text": "Music Credit: Birds in The Rain by Robert GuerrierComplete transcript available.Watch this video on the NASA Goddard YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 4342, "url": "https://svs.gsfc.nasa.gov/4342/", "page_type": "Visualization", "title": "Sixteen Comets Touring the Inner Solar System", "description": "This visualization presents a small sample of the 9 years of comets seen by SOHO from the perspective a an observer at a fixed point above the ecliptic plane with the Sun at the center. || SixteenComets-oblique.slate_HAEmove.HD1080i.1000_print.jpg (1024x576) [109.1 KB] || SixteenComets-oblique.slate_HAEmove.HD1080i.1000_searchweb.png (320x180) [72.2 KB] || SixteenComets-oblique.slate_HAEmove.HD1080i.1000_thm.png (80x40) [4.3 KB] || SixteenComets-oblique.HD1080.webm (1920x1080) [11.3 MB] || SixteenComets-oblique.HD1080.mov (1920x1080) [109.2 MB] || Oblique (1920x1080) [512.0 KB] || SixteenComets-oblique_1080p30.mp4 (1920x1080) [64.2 MB] || ", "release_date": "2015-09-15T10:00:00-04:00", "update_date": "2023-05-03T13:49:21.210746-04:00", "main_image": { "id": 441082, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004342/SixteenComets-oblique.slate_HAEmove.HD1080i.1000_print.jpg", "filename": "SixteenComets-oblique.slate_HAEmove.HD1080i.1000_print.jpg", "media_type": "Image", "alt_text": "This visualization presents a small sample of the 9 years of comets seen by SOHO from the perspective a an observer at a fixed point above the ecliptic plane with the Sun at the center.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 4344, "url": "https://svs.gsfc.nasa.gov/4344/", "page_type": "Visualization", "title": "Lots of Comets - Short trail version", "description": "This visualization presents 14 years of comets seen by SOHO from the perspective of an observer at a fixed point above the ecliptic plane with the Sun at the center. || LotsaCometsST-oblique.slate_HAEmove.HD1080i.1000_print.jpg (1024x576) [97.7 KB] || LotsaCometsST-oblique.slate_HAEmove.HD1080i.1000_searchweb.png (320x180) [65.2 KB] || LotsaCometsST-oblique.slate_HAEmove.HD1080i.1000_thm.png (80x40) [3.5 KB] || Oblique (1920x1080) [768.0 KB] || LotsaCometsST-oblique_1080p30.mp4 (1920x1080) [103.6 MB] || LotsaCometsST-oblique_1080p30.webm (1920x1080) [20.3 MB] || ", "release_date": "2015-09-15T10:00:00-04:00", "update_date": "2023-05-03T13:49:21.448757-04:00", "main_image": { "id": 440927, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004344/LotsaCometsST-oblique.slate_HAEmove.HD1080i.1000_print.jpg", "filename": "LotsaCometsST-oblique.slate_HAEmove.HD1080i.1000_print.jpg", "media_type": "Image", "alt_text": "This visualization presents 14 years of comets seen by SOHO from the perspective of an observer at a fixed point above the ecliptic plane with the Sun at the center.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 11975, "url": "https://svs.gsfc.nasa.gov/11975/", "page_type": "Produced Video", "title": "3,000 Comets for SOHO", "description": "Karl Battams of the Naval Research Lab talks us through a visualization of the comets that SOHO has witnessed.Watch this video on the NASAexplorer YouTube channel. || sohocometsthumb.jpg (1280x720) [150.9 KB] || sohocometsthumb_print.jpg (1024x576) [157.3 KB] || sohocometsthumb_searchweb.png (320x180) [82.6 KB] || sohocometsthumb_web.png (320x180) [82.6 KB] || sohocometsthumb_thm.png (80x40) [11.5 KB] || G2015-069_3000SOHOcometsV2-H264_Good_1080_29.97.mov (1920x1080) [565.6 MB] || G2015-069_3000SOHOcometsV2-H264_Best_1920x1080_59.94.mov (1920x1080) [3.3 GB] || VX-71391.m4v (1280x720) [134.5 MB] || VX-71391.mov (1920x1080) [2.1 GB] || VX-71391.webm (960x540) [108.0 MB] || 3000SOHOcometsV2.en_US.srt [4.5 KB] || 3000SOHOcometsV2.en_US.vtt [4.5 KB] || VX-71391.mp4 (480x272) [35.9 MB] || ", "release_date": "2015-09-15T10:00:00-04:00", "update_date": "2023-05-03T13:49:21.559331-04:00", "main_image": { "id": 440582, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011900/a011975/SOHO-3000_BOX_SunInset_Fullres_print.jpg", "filename": "SOHO-3000_BOX_SunInset_Fullres_print.jpg", "media_type": "Image", "alt_text": "Inset image of SOHO's 3,000th comet. Credit: SOHO/ESA/NASA/NRL", "width": 1024, "height": 1024, "pixels": 1048576 } } ], "sources": [], "products": [ { "id": 14552, "url": "https://svs.gsfc.nasa.gov/14552/", "page_type": "Produced Video", "title": "Volunteers Help ESA & NASA Mission to Discover 5,000 Comets", "description": "The Solar and Heliospheric Observatory (SOHO), a joint mission of ESA (European Space Agency) and NASA, has discovered its 5,000th comet, thanks to the help of volunteer comet hunters participating in the NASA-funded Sungrazer Project.The sungrazing comet was spotted in SOHO images on March 25, 2024, by Hanjie Tan in the Czech Republic, who has participated in the Sungrazer Project since he was 13 years old. The comet is small and has a short orbital period around the Sun. It belongs to the “Marsden group” of comets, which are thought to be related to the larger comet 96P/Machholz. The group is named after the late scientist Brian Marsden, who first recognized the group using SOHO observations.To learn more about the discovery and SOHO, visit: https://science.nasa.gov/science-research/heliophysics/esa-nasa-solar-observatory-discovers-its-5000th-comet/Since the early 2000s, the Sungrazer Project has allowed anyone with a computer to search for comets in images taken by the SOHO spacecraft.To learn more about the Sungrazer Project, visit: https://science.nasa.gov/citizen-science/the-sungrazer-project/ || ", "release_date": "2024-03-27T10:00:00-04:00", "update_date": "2024-03-26T15:33:26.792521-04:00", "main_image": { "id": 1090387, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014500/a014552/SOHO4995.00030_print.jpg", "filename": "SOHO4995.00030_print.jpg", "media_type": "Image", "alt_text": "This annotated movie from the European Space Agency & NASA’s SOHO observatory shows the 4,995th comet discovered by the spacecraft as it speeds toward the Sun on March 14, 2024.Credit: ESA/NASA/SOHO/Karl Battams", "width": 1024, "height": 757, "pixels": 775168 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [] }