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46a794a0ab5849fc1d49d5f32e7c0bbe: Spacecraft Elegy
Are We Alone?

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24 Apr 2017, 13:14 UTC
https://stardate.org/radio/program/last-glance: Last Glance
StarDate Online

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23 Apr 2017, 05:00 UTC
http://astronomy.fm/?p=17150: The Event Horizon 2017/04/21

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22 Apr 2017, 02:19 UTC https://www.amazon.co.uk/d/Books/Shoemaker-Levy-Man-Made-Impact/0691113254 http://www.space.com/35929-tiny-asteroid-buzzes-earth-returns-in-100-years.html?utm_campaign=crowdfire&utm_content=crowdfire&utm_medium=social&utm_source=twitter#809028745529016320-tw#1488911618692 https://phys.org/news/2017-02-major-impact-wildlife.html https://pbs.twimg.com/media/C93L2GwXsAAEkbc.jpg http://www.skyandtelescope.com/observing/sky-at-a-glance/this-weeks-sky-at-a-glance-april-21-29/ https://www.facebook.com/NBObservatories/?fref=nf https://sdo.gsfc.nasa.gov/assets/img/latest/latest_1024_HMIIC.jpg http://www.swpc.noaa.gov/communities/space-weather-enthusiasts http://services.swpc.noaa.gov/images/wing-kp-24-hour.gif?time=1492824673000 http://www.bbc.com/news/science-environment-39658947 https://www.nasaspaceflight.com/2017/04/roscosmos-soyuz-ms-04-launch-two-member-crew/ https://astronomynow.com/2017/04/14/keck-observatory-achieves-first-light-with-new-instrument/ http://www.keckobservatory.org/recent/entry/keck_observatory_completes_4_million_adaptive_optics_fund http://www.srl.caltech.edu/sal/keck-cosmic-web-imager.html http://websdr.ewi.utwente.nl:8901/ https://www.youtube.com/watch?v=H5e51GvSh7k&t=2092s NGC 4559 is an intermediate spiral galaxy with a weak inner ring structure in the constellation Coma Berenices. Anyway, marked is Supernova PSNJ12355230+2755559. Actually it is LBV PSN J12355230+2755559, a Luminous blue variable. We measured it a little brighter than 17th magnitude. Luminous blue variables (LBVs) are massive evolved stars that show unpredictable and sometimes dramatic variations in both their spectra and brightness. They are also known as S Doradus variables after S Doradus, one of the brightest stars of the Large Magellanic Cloud. They are extraordinarily rare with just 20 objects listed in the General Catalogue of Variable Stars as SDor, and a number of these are no longer considered to be LBVs. [https://en.wikipedia.org/wiki/Luminous_blue_variable}”

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