Comet Watch: March 2018 – with Special Guest Bob King

March 8th, 2018 by Nick Evetts

Welcome to the March episode of Comet Watch, featuring special guest, Bob King.  Our thanks, as always to co-hosts Mary McIntyre and Neil Norman!

Bob’s  Blog is at  http://astrobob.areavoices.com

Bob also writes a weekly blog for Sky & Telescope called “Explore the Night.” His Books are “Night Sky with the Naked Eye” http://amzn.to/2FaOLSI and “Wonders of the Night You Must See Before you Die” http://amzn.to/2oPKJ7t

http://cometography.com/pcomets/017p.html

Brian Marsden  http://www.skyandtelescope.com/astronomy-news/brian-g-marsden-1937-2010/

“IF IT MOVES OR EXPLODES, MARSDEN WANTS TO KNOW ABOUT IT”

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AFM_Space Pirate Radio 2018/04/19 Planet Stupid

April 19th, 2018 by Nick Evetts
Here are tonight’s links:
Marty brought up Astronomy Day:
https://www.astroleague.org/al/a​stroday/astrodayform.html
Doug@NCO added these AstroLeague links:
https://www.astroleague.org/obse​rving.html
https://www.astroleague.org/al/o​bsclubs/LevelObservingClubs.html
And here is what’s happening in the sky for the next week:
Tue, Apr 17, 19h Venus 5° N. of Moon
Wed, Apr 18, 02h Saturn stationary
Wed, Apr 18, 14h Uranus in conjunction with Sun
Thu, Apr 19, 05h Aldebaran 1°.1 S. of Moon, Occn.
Fri, Apr 20, 15h Moon at perigee
Sun, Apr 22, 22h FIRST QUARTER
Mon, Apr 23, 02h Pluto stationary
Tue, Apr 24, 20h Regulus 1°.2 S. of Moon, Occn.
Times given in UT. These events, and more can be found at:
http://asa.usno.navy.mil
Plus something might be going on with the sun:
https://sohowww.nascom.nasa.gov/​data/realtime/eit_171/512/
TESS satellite was launched today
https://www.nasa.gov/press-relea​se/nasa-planet-hunter-on-its-way-​to-orbit
https://www.washingtonpost.com/n​ews/speaking-of-science/wp/2018/0​4/16/nasas-newest-planet-hunter-w​ill-launch-monday-night-if-all-go​es-well/?utm_term=.905778c46800
Diane reported a narrow miss:
https://www.smithsonianmag.com/s​mart-news/asteroid-flew-earth-une​xpectedly-sunday-180968818/
The IAU makes it official:
http://www.astronomy.com/news/20​18/04/features-on-mercury-charon-​receive-official-names
Then those moons:
http://www.astronomy.com/news/20​18/04/martian-moons-likely-formed​-after-impact-with-ceres-sized-ob​ject
And lost planets:
https://scitechdaily.com/diamond​s-provide-evidence-of-a-lost-plan​et-that-once-roamed-our-solar-sys​tem/
http://astronomy.com/news/2018/0​4/meteoric-diamonds-are-evidence-​of-long-lost-planets
Mercury has a “tail”?
https://scitechdaily.com/new-res​earch-helps-explain-mercurys-magn​etic-tail/
Black holes getting ready to merge:
https://scitechdaily.com/unprece​dented-dissection-of-twin-galaxie​s-in-final-stages-of-merging/
Crew member Twistedge added these links during the show:
Diamonds Found in a Meteorite Once Belonged to a Lost Planet in Our Solar System
https://www.sciencealert.com/dia​mond-inclusions-meteorite-almahat​a-sitta-lost-protoplanet-solar-sy​stem
NASA Basically Missed a Huge Asteroid That Passed Unnervingly Close to Earth
https://www.sciencealert.com/gia​nt-football-field-size-asteroid-s​urprise-flyby-earth
Pluto’s largest moon, Charon, gets its first official feature names
https://www.sciencedaily.com/rel​eases/2018/04/180412102856.htm
The Lyrid Meteor Shower Is Making An Appearance This Month
http://www.iflscience.com/space/​heads-up-the-lyrid-meteor-shower-​is-making-an-appearance-this-mont​h/
The search for the sun’s lost siblings
http://earthsky.org/space/sun-lo​st-siblings-galah-survey-data-rel​ease
Now paleontologists know what colors graced these 200-million-year-old butterfly wings
https://www.popsci.com/butterfly​-fossil-wing-color
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The Event^ Horizon 2018/04/13

April 14th, 2018 by Nick Evetts

Thanks to Starstorm for joining us on the Air  and for all the of tonights links

https://www.youtube.com/user/NAS​Atelevision

https://www.youtube.com/user/ESA

https://www.youtube.com/user/spa​cexchannel
https://tess.gsfc.nasa.gov/
https://www.nasa.gov/tess-transi​ting-exoplanet-survey-satellite
 https://tess.gsfc.nasa.gov/tess_​observatory.html
https://tess.gsfc.nasa.gov/scien​ce.html
https://en.wikipedia.org/wiki/Tr​ansiting_Exoplanet_Survey_Satelli​te
https://www.amsmeteors.org/2018/​04/meteor-activity-outlook-for-ap​ril-14-20-2018/
https://www.imo.net/meteor-activ​ity-outlook-for-7-13-april-2018/
http://www.seasky.org/constellat​ions/constellations-april.html
https://www.altairastro.com/Alta​ir-Hypercam-IMX183C-Colour-Astron​omy-CMOS-Camera.html
 https://www.aavso.org/aavso-aler​t-notice-629
http://www.skyandtelescope.com/o​bserving/this-weeks-sky-at-a-glan​ce-april-13-21/
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AFM’s Space Pirate Radio 2018/04/12 Pirate Space Party!

April 12th, 2018 by Nick Evetts
Here are the links from tonight’s show:
First up, Yuri’s Night:
https://en.wikipedia.org/wiki/Yuri%27s_Night
Also, Friday the 20th is Statewide (Michigan) Astronomy Night, the 21st is International Astronomy Day.
https://events.umich.edu/event/3​6952
https://www.astroleague.org/al/a​stroday/astrodayform.html
Saturday is Christian Huygens birthday.
https://en.wikipedia.org/wiki/Ch​ristiaan_Huygens
And Sunday is Leonardo DaVinci’s birthday
https://en.wikipedia.org/wiki/Leonardo_da_Vinci
http://www.meijergardens.org/exp​lore/the-american-horse/
Along with possible Aurora chances, up in the sky we have:
Thu, Apr 12, 23h Neptune 1°.9 N. of Moon
Sat, Apr 14, 04h Mercury stationary
Sat, Apr 14, 09h Mercury 4° N. of Moon
Mon, Apr 16, 02h NEW MOON
Tue, Apr 17, 19h Venus 5° N. of Moon
Wed, Apr 18, 02h Saturn stationary
Wed, Apr 18, 14h Uranus in conjunction with Sun
Times given in UT. These events, and more can be found at:
http://asa.usno.navy.mil
Crew member Glenn posted this link:
http://www.msn.com/en-us/video/w​onder/nasa-releases-virtual-tour-​of-moon-in-4k/vi-AAvGypy?ocid=ieh​p
Marty found some AAVSO notices:
https://www.aavso.org/aavso-alert-notice-630
https://www.aavso.org/aavso-aler​t-notice-629
Diane brought the Space-X launch episode:
https://www.theverge.com/2018/4/​9/17215016/spacex-falcon-9-zuma-s​pacecraft-northrop-grumman-payloa​d-adapter
And she also wondered if life could exist in the clouds of Venus, well, she brought up the article anyway:
http://www.astronomy.com/news/20​18/04/could-life-be-hiding-in-the​-clouds-of-venus
Finding black hole mergers in globular clusters:
https://astronomynow.com/2018/04​/10/globular-clusters-may-host-mu​ltiple-generations-of-black-hole-​mergers/
Marty is bonkers for occultations:
http://www.asteroidoccultation.c​om
https://occultations.org
Cassi popped this in the chat, too:
https://l.facebook.com/l.php?u=h​ttps%3A%2F%2Fastronomerswithoutbo​rders.org%2Fgam2018-programs%2Fon​line%2F4157-online-messier-marath​on-10th-edition.html&h=ATNtuL8i1q​35kl7Uyx9H52FulH37a7Huj6-ErfVgShG​iY6vi8vAZyywhmLf5EzXcgMPme9ETm1Hf​ISz2H2FucajsGuK-EnsrKGiBwCr5KS8Cw​SDE0F83vyV6ERVg0B6zovWDnmYbI-hWb6​GEkA
Twistedge added these links:
50 of the massive ancient drawings are considered new discoveries:
https://news.nationalgeographic.​com/2018/04/new-nasca-nazca-lines​-discovery-peru-archaeology/?beta​=true
this is a good website to watch sat launches:
http://stuffin.space/
Interplanetary CubeSats to Mars:
https://blogs.scientificamerican​.com/life-unbounded/interplanetar​y-cubesats-are-go/
Scientists Have Measured a Brutal Superflare From Proxima Centauri, Visible With The Naked Eye:
https://www.sciencealert.com/pro​xima-centauri-destroyed-any-hope-​of-orbiting-life-by-emitting-a-pl​anet-scorching-superflare
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Comet Watch April 2018 with Special Guest Michelle Thaller Ph.D

April 8th, 2018 by Nick Evetts

Welcome to the April episode of Comet Watch featuring special guest, Michelle Thaller Ph.D  . My thanks, as always to my co-host Neil Norman!   Mary McIntyre is unwell and will be joining us again next month.

BAA Comet Section Visual Observations Page

Comet Lexell was discovered by Charles Mesier on June 14th,1770.
At this one and only apparition, it passed by Earth on its way to a August 14th perihelion, at a distance of 0.015 AU’s or 1,400,000 miles.
The comet was a member of the Jupiter family comets and originally had a perihelion distance of beyond 2 AU’s, but a close Jupiter approach by the comet in 1767 lead to its perihelion distance being radically changed . Comet Lexell holds the distinctions of being the first known JFC and also first NEO.
The comet again approached close to Jupiter in 1779 and the perihelion distance was increased greatly to some 3.3 AU’s.
The comet is today considered lost, but many still speculate that the comet was eventually expelled from the Solar System by Jupiter.
The debate continues………..

D/1770 L1 (Lexell)  http://cometography.com/pcomets/1770l1.html

Finding long lost Lexell’s comet: the fate of the first discovered near-earth object   https://arxiv.org/pdf/1802.08904.pdf

Evolution of orbit of Lexell’s Comet   https://vimeo.com/58118316

The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is an event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, at a time corresponding to the Neohadean and Eoarchean eras on Earth.

Origin of the cataclysmic Late Heavy Bombardment period of the terrestrial planets  https://www.nature.com/articles/nature03676

http://www.pbs.org/wgbh/nova/blogs/secretlife/space-science/michelle-thaller/

Spacewatch  https://spacewatch.lpl.arizona.edu/

Asteroid Day   https://asteroidday.org/

Neoshield     http://www.neoshield.eu/

NEOShield Official Youtube channel   https://www.youtube.com/channel/UCbWym2jfxVXn9hEd7sUqrfA

Northolt Branch Observatories

BAA Comet Section page 

BAA YouTube Channel

The Astronomer

The Astronomer  Youtube Channel

The German Comet Group

Seiichi Yoshida’s page

Liga Iberoamericana de Astronomia

Comet chasing

The Sky Live (Comets) 

Minor Planets Center (IAU)

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The Event^Horizon 2018/04/06

April 7th, 2018 by Nick Evetts

Just me and Marty on the Air this week , Thank you Starstorm for the links

https://dso-browser.com/

http://newmoontelescopes.com
http://newmoontelescopes.com/pro​duct/20-f-3-3/
https://www.ap-i.net/avl/en/star​t
http://www2.lpod.org/wiki/April_​5,_2018
http://the-moon.wikispaces.com/R​ukl+76
https://www.eso.org/public/news/​eso1810/
https://echo.jpl.nasa.gov/astero​ids/Midas/Midas_planning.2018.htm​l
 https://www.facebook.com/NBObser​vatories/videos/1916991555002373/
https://en.wikipedia.org/wiki/Li​st_of_space_telescopes

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AFM’s Space Pirate Radio 2018/04/05 Spectroscopic Zoo

April 5th, 2018 by Nick Evetts
Here are the links from tonight’s program:
No sunspots but something might be coming. Keep watching the SOHO website:
https://sohowww.nascom.nasa.gov/​sunspots/
After Marty groused about daylight saving time, Diane brought up this bit about astrophysicists helping the environment:
http://www.bbc.com/news/science-​environment-43546429
And what’s up in the sky for the next week:
Tue, Apr 03, 14h Jupiter 4° S. of Moon
Sat, Apr 07, 13h Saturn 1°.9 S. of Moon
Sat, Apr 07, 18h Mars 3° S. of Moon
Sun, Apr 08, 06h Moon at apogee
Sun, Apr 08, 07h LAST QUARTER
Times given in UT. These events, and more can be found at:
http://asa.usno.navy.mil
Marty suggests we check out how the Jovian moons are progressing:
https://www.projectpluto.com/jev​ent.htm
https://in-the-sky.org
Good news for you citizen science participants NASA’s planetary data system:
https://pds.nasa.gov
Marty came up with an AAVSO alert:
https://www.aavso.org/aavso-aler​t-notice-627
And Diane found another:
https://www.aavso.org/aavso-aler​t-notice-628
Mars orbiter came up with some interesting images:
https://www.nasa.gov/image-featu​re/jpl/pia22348/formations-in-con​text-or-what-is-it
https://en.wikipedia.org/wiki/20​01:_A_Space_Odyssey_(film)
And the farthest star ever seen…gets spotted:
https://www.nasa.gov/feature/god​dard/2018/hubble-uncovers-the-far​thest-star-ever-seen
http://astronomy.com/news/2018/0​4/hubble-images-farthest-star-eve​r-seen
Things that go boom in the night:
https://www.space.com/40197-myst​erious-cosmic-explosions-puzzle-a​stronomers.html
Holding up a yardstick to the sky:
https://scitechdaily.com/hubble-​makes-precise-distance-measuremen​t-to-one-of-the-oldest-objects-in​-the-universe/
And finally, Marty latches on to a black hole:
https://scitechdaily.com/astrono​mers-view-black-hole-jets-deep-in​side-perseus-a/
Twistedge threw these links in the chatroom:
Center Of The Milky Way Has Thousands Of Black Holes, Study Shows-
https://www.npr.org/sections/the​two-way/2018/04/04/599437677/new-​study-shows-the-center-of-the-mil​ky-way-has-thousands-of-black-hol​es
Thanks to Incredible Luck, Hubble Caught a Photo of The Most Distant Star Ever Seen:
https://www.sciencealert.com/ica​rus-blue-giant-most-distant-star-​ever-seen-hubble-9-billion-light-​years
NASA’s next exoplanet hunter set to launch on April 16, Transiting Exoplanet Survey Satellite (TESS):
https://www.nature.com/articles/​d41586-018-03354-7
(ESA) tested a large parachute for their Mars ExoMars Rover landing set for 2021.
http://www.iflscience.com/space/​esa-just-tested-the-biggest-mars-​parachute-ever-to-land-its-new-ro​ver-in-2021/
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