Astronomy Picture of the Day [1]Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2023 July 14 [2]See Explanation. Clicking on the picture will download the highest resolution version available. Comet C/2023 E1 ATLAS near Perihelion Image Credit & [3]Copyright: [4]Dan Bartlett Explanation: [5]Comet C/2023 E1 (ATLAS) was just spotted in March, another comet found by the NASA funded Asteroid Terrestrial-impact Last Alert System. On July 1 this Comet ATLAS reached perihelion, its closest approach to the Sun. Shortly afterwards the telescopic comet was [6]captured in this frame sporting a pretty greenish coma and faint, narrow ion tail against a background of stars in the far northern constellation Ursa Minor. This comet's closest approach to Earth is still to come though. On August 18 this [7]visitor to the inner Solar System will be a mere 3 light-minutes or so from our fair planet. [8]Based on its inclination to the ecliptic plane [9]and orbital period of about 85 years C/2023 E1 (ATLAS) is [10]considered a [11]Halley-type comet. Tomorrow's picture: light-weekend __________________________________________________________________ [12]< | [13]Archive | [14]Submissions | [15]Index | [16]Search | [17]Calendar | [18]RSS | [19]Education | [20]About APOD | [21]Discuss | [22]> __________________________________________________________________ Authors & editors: [23]Robert Nemiroff ([24]MTU) & [25]Jerry Bonnell ([26]UMCP) NASA Official: Phillip Newman [27]Specific rights apply. [28]NASA Web Privacy Policy and Important Notices A service of: [29]ASD at [30]NASA / [31]GSFC & [32]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2307/C_2023_E1_ATLAS_C14F2_DEBartlett.jpg 3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 4. https://www.astrobin.com/users/h2ologg/ 5. https://theskylive.com/c2023e1-info 6. https://www.astrobin.com/03ejcp/B/ 7. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/comets/overview/ 8. https://minorplanetcenter.net/db_search/show_object?object_id=C/2023+E1 9. https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=C/2023 E1 10. https://ui.adsabs.harvard.edu/abs/2014A&A...563A.122W/abstract 11. https://astronomy.swin.edu.au/cosmos/h/halley-type+comets 12. https://apod.nasa.gov/apod/ap230713.html 13. https://apod.nasa.gov/apod/archivepix.html 14. https://apod.nasa.gov/apod/lib/apsubmit2015.html 15. https://apod.nasa.gov/apod/lib/aptree.html 16. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 17. https://apod.nasa.gov/apod/calendar/allyears.html 18. https://apod.nasa.gov/apod.rss 19. https://apod.nasa.gov/apod/lib/edlinks.html 20. https://apod.nasa.gov/apod/lib/about_apod.html 21. http://asterisk.apod.com/discuss_apod.php?date=230714 22. https://apod.nasa.gov/apod/ap230715.html 23. http://www.phy.mtu.edu/faculty/Nemiroff.html 24. http://www.phy.mtu.edu/ 25. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 26. http://www.astro.umd.edu/ 27. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 28. https://www.nasa.gov/about/highlights/HP_Privacy.html 29. https://astrophysics.gsfc.nasa.gov/ 30. https://www.nasa.gov/ 31. https://www.nasa.gov/centers/goddard/ 32. http://www.mtu.edu/