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. 2022 February 10 [2]See Explanation. Clicking on the picture will download the highest resolution version available. T Tauri and Hind's Variable Nebula Image Credit & [3]Copyright: [4]Dawn Lowry, Gian Lorenzo Ferretti, Ewa Pasiak and Terry Felty Explanation: The star with an orange tint near top center in this dusty [5]telescopic frame is T Tauri, prototype of the class of [6]T Tauri variable stars. Next to it (right) is a yellow cosmic cloud [7]historically known as Hind's Variable Nebula (NGC 1555). About 650 light-years away, [8]at the boundary of the [9]local bubble and the Taurus molecular cloud, both star and nebula are seen to vary significantly in brightness but not necessarily at the same time, adding to the mystery of the intriguing region. T Tauri stars are now generally [10]recognized as young (less than a few million years old), sun-like stars still in the [11]early stages of formation. To [12]further complicate the picture, infrared observations indicate that T Tauri itself is part of a multiple system and suggest that the associated [13]Hind's Nebula may also contain a very young stellar object. The well-composed image spans about 8 light-years at the estimated distance of T Tauri. Tomorrow's picture: pixels in space __________________________________________________________________ [14]< | [15]Archive | [16]Submissions | [17]Index | [18]Search | [19]Calendar | [20]RSS | [21]Education | [22]About APOD | [23]Discuss | [24]> __________________________________________________________________ Authors & editors: [25]Robert Nemiroff ([26]MTU) & [27]Jerry Bonnell ([28]UMCP) NASA Official: Phillip Newman [29]Specific rights apply. [30]NASA Web Privacy Policy and Important Notices A service of: [31]ASD at [32]NASA / [33]GSFC & [34]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2202/NGC1555texas2021.jpg 3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 4. https://www.astrobin.com/users/lowry_pt/ 5. https://www.astrobin.com/tntkhi/ 6. http://www.aavso.org/vsots_ttau 7. http://adsabs.harvard.edu/doi/10.1086/145232 8. https://arxiv.org/abs/2201.05124 9. https://skyandtelescope.org/astronomy-news/1000-light-year-bubble-is-the-source-of-all-nearby-baby-stars/?utm_source=cc&utm_medium=newsletter 10. https://www.nasa.gov/content/goddard/hubble-catches-jets-bubbles-bursts-of-light-in-taurus/ 11. http://hyperphysics.phy-astr.gsu.edu/hbase/astro/gravc.html 12. http://arxiv.org/abs/astro-ph/0406337 13. http://www.daviddarling.info/encyclopedia/H/Hind.html 14. https://apod.nasa.gov/apod/ap220209.html 15. https://apod.nasa.gov/apod/archivepix.html 16. https://apod.nasa.gov/apod/lib/apsubmit2015.html 17. https://apod.nasa.gov/apod/lib/aptree.html 18. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 19. https://apod.nasa.gov/apod/calendar/allyears.html 20. https://apod.nasa.gov/apod.rss 21. https://apod.nasa.gov/apod/lib/edlinks.html 22. https://apod.nasa.gov/apod/lib/about_apod.html 23. http://asterisk.apod.com/discuss_apod.php?date=220210 24. https://apod.nasa.gov/apod/ap220211.html 25. http://www.phy.mtu.edu/faculty/Nemiroff.html 26. http://www.phy.mtu.edu/ 27. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 28. http://www.astro.umd.edu/ 29. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 30. https://www.nasa.gov/about/highlights/HP_Privacy.html 31. https://astrophysics.gsfc.nasa.gov/ 32. https://www.nasa.gov/ 33. https://www.nasa.gov/centers/goddard/ 34. http://www.mtu.edu/