|
Tony Dunn
@
tony873004
San Francisco
|
|
Orbit simulations of planets, comets, asteroids and other interesting stuff. Amateur astronomer. Bachelor's: Physics & Astro, SFSU. Riordan physics teacher.
|
|
|
1.880
Tweetovi
|
947
Pratim
|
2.307
Osobe koje vas prate
|
| Tweetovi |
|
Tony Dunn
@tony873004
|
4. velj |
|
That makes my day! If they're in PPT or any other format, send me a copy. I've definitely had many bad days repaired by seeing my work used by others.
|
||
|
|
||
|
Tony Dunn
@tony873004
|
4. velj |
|
Welcome to San Francisco!
A student at my high school interviewed me today. He's doing a story on Borisov for our school paper. I included stuff I learned from you, about LSST, now VRO, possibly finding many of these objects each year, giving us clues about planet formation.
|
||
|
|
||
|
Tony Dunn
@tony873004
|
3. velj |
|
Riordan High School Band plays at @shakeshack's ribbon-cutting ceremony in San Francisco. @RiordanHS
ktvu.com/news/popular-e… pic.twitter.com/hKXb07ra9n
|
||
|
|
||
|
Tony Dunn
@tony873004
|
3. velj |
|
#ExploringTheGalaxy
#OTD On this day 7 years from now, Voyager I will be 1 light day away from the Sun.
orbitsimulator.com/gravitySimulat… pic.twitter.com/pmLL6Am5Ju
|
||
|
|
||
|
Tony Dunn
@tony873004
|
2. velj |
|
Probably very small as it was only discovered after close approach. 1-3 meters would be my guess, but I don't know.
|
||
|
|
||
|
Tony Dunn
@tony873004
|
2. velj |
|
projectpluto.com/neocp2/mpecs/C…
Mt. Lemmon Survey
|
||
|
|
||
|
Tony Dunn
@tony873004
|
2. velj |
|
Newly-discovered asteroid C21VL72 passed less than 10,000 km above Earth's surface yesterday. orbitsimulator.com/gravitySimulat… pic.twitter.com/sKvcwVWfcb
|
||
|
|
||
|
Tony Dunn
@tony873004
|
1. velj |
|
Too bad it missed. At 7 meters max, it would have been a beautiful bolide that caused no damage.
|
||
|
|
||
|
Tony Dunn
@tony873004
|
1. velj |
|
#Asteroid 2020 BZ13 was observed by @NBObservatories on Jan 28th. This 3-7 meter rock passed 106,000 km from Earth at a very rapid 24 km/s on January 29.
orbitsimulator.com/gravitySimulat… pic.twitter.com/JPSnqrbNCK
|
||
|
|
||
|
Tony Dunn
@tony873004
|
30. sij |
|
Here are the 19 most massive asteroids in the asteroid belt.
orbitsimulator.com/gravitySimulat… pic.twitter.com/vxmzgC9r4S
|
||
|
|
||
| Tony Dunn proslijedio/la je tweet | ||
|
Sal Castaneda
@sal_castaneda
|
30. sij |
|
The high school I attended in San Francisco, Riordan High School, is going co-ed starting next year. Since it opened in 1949 it has been an all boys Catholic high school. Riordan joins St. Ignatius and Sacred Heart who made the switch years ago. This is me on graduation day: pic.twitter.com/mYDvaYCZjE
|
||
|
|
||
|
Tony Dunn
@tony873004
|
29. sij |
|
Parker At Perihelion.
The #ParkerSolarProbe is at perihelion, 0.1296 AU. No manmade object has ever been this close to the Sun.
orbitsimulator.com/gravitySimulat… pic.twitter.com/AgIJ8iFwSU
|
||
|
|
||
|
Tony Dunn
@tony873004
|
29. sij |
|
Why can't they complete Van Ness before they ruin another street?
|
||
|
|
||
|
Tony Dunn
@tony873004
|
28. sij |
|
Here's a few more that should run in your android's browser.
orbitsimulator.com/gravitySimulat…
orbitsimulator.com/gravitySimulat…
orbitsimulator.com/gravitySimulat…
|
||
|
|
||
|
Tony Dunn
@tony873004
|
26. sij |
|
Galileo could have been credited with the discovery of Neptune. He saw it #OTD in 1613 while Neptune was undergoing retrograde motion around Jupiter. But he mistook it as a background star.
orbitsimulator.com/gravitySimulat… pic.twitter.com/xnJ5qZaXZA
|
||
|
|
||
|
Tony Dunn
@tony873004
|
26. sij |
|
Today, #ParkerSolarProbe breaks its previous record of 0.166 AU for closest distance to the Sun by any spacecraft. Future Venus flybys will send it even closer.
orbitsimulator.com/gravitySimulat… pic.twitter.com/ZuP8SMLTLV
|
||
|
|
||
|
Tony Dunn
@tony873004
|
26. sij |
|
"but I plotted a few more satellites"
😁 Yes you did! I love the Earth's shadow.
|
||
|
|
||
|
Tony Dunn
@tony873004
|
26. sij |
|
Apophis is the size of a stadium, including the parking lot. It was discovered in 2004 and has been observed as recently as 2015. Its orbit is well-established. BH6 is probably the size of a minivan or bus. It's unlikely to be observed again until it once again surprises us.
|
||
|
|
||
|
Tony Dunn
@tony873004
|
26. sij |
|
Rocket Man -- Elton John
Across the Universe -- The Beatles
|
||
|
|
||
|
Tony Dunn
@tony873004
|
26. sij |
|
The smaller orbit is after. pic.twitter.com/mRKvw6TjKK
|
||
|
|
||