The predicted deterioration in weather conditions for Mauna Kea held off long enough for us to get another sequence of exposures on 2009 BD. About 50 minutes...
We are getting ever closer to finishing this website (I DREAM of the day!)... We have a page for "Related Links". I am interested in knowing what might be some...
25429
Ron Baalke
baalke@...
Jun 2, 2011 12:57 am
June 01, 2011 Stephanie L. Schierholz Headquarters, Washington 202-358-4997 stephanie.schierholz@... Veronica McGregor Jet Propulsion Laboratory,...
We are imaging 2009 BD with both 0.35m and 0.47m telescopes in Los Molinos Observatory and detected the object clearly in both instruments with SNR ~10 in 5sec...
... I suggest to add a link to the Skybot Webservice (http://vo.imcce.fr/webservices/skybot/), which allows to seek and identify all the known solar system...
This video is just for the fun of it. I was reviewing the three tapes I have from the (217) Eudora occultation early Sunday morning when I family let out a big...
I wonder if you might indicate the RA and dec of the field and the orientation, i.e., which way is north and east? It's interesting that the object does not...
Hi All, could it be a bird like seagull or something like that? At 1/10th speed it seems to me to see wings movements typicall of a flying bird. Sometimes it...
Yes, I can provide the location via the published location of the occultation. We were pointed near HIP 87494 06 35 34 UTC position, but at 01 07 11 UTC Or...
All, Please see the (edited) message below, forwarded from the American Astronomical Society (AAS). Of particular note is the Chambliss Amateur Achievement...
What astrometry we've received so far will be out on tonight's DOU MPEC, as is usual for third-apparition observations. Gareth...
25438
Ron Baalke
baalke@...
Jun 3, 2011 12:25 am
http://www.jpl.nasa.gov/news/news.cfm?release=2011-170 Opportunity Passes Small Crater and Big Milestone Jet Propulsion Laboratory June 02, 2011 A drive of 482...
Hello Terry, I would say it is a bird crossing your fov. I have such events which are looking very nearly the same several times a night with my automated...
25440
Ron Baalke
baalke@...
Jun 3, 2011 7:41 pm
http://www.esa.int/esaCP/SEMSTK58BOG_index_0.html Rosetta to sleep through loneliest leg of comet mission European Space Agency 3 June 2011 On 8 June, mission...
Heyho, 1.) Do you ever want to be informed about an upcoming close encounter between two solar system bodies? 2.) Do you want to make sure that YOU can...
25442
Ron Baalke
baalke@...
Jun 6, 2011 3:30 am
Small Mass of Mars Could be Due to Planetary Orbital Migration Planetary Science Institute June 5, 2011 A long-ago inward migration by Jupiter during the...
25443
Brian Skiff
bas@...
Jun 6, 2011 5:47 am
This was posted on astro-ph this evening: http://arxiv.org/abs/1106.0564 Detection of radiation pressure acting on 2009 BD Marco Micheli, David J. Tholen,...
25444
Tomasz Kwiatkowski
tkastr@...
Jun 6, 2011 9:51 am
Hello, last night we managed to observe 2009 BD with the 10m SALT. Took 72 exposures (5s, V filter, 8x8 arcmin FoV) from 20:18 to 20:35 UTC, when high humidity...
25445
Dave Tholen
tholen@...
Jun 6, 2011 10:32 am
... That's the paper based on the 2009-2010 astrometry. No 2011 astrometry is involved. To fit the 2011 astrometry, a tangential acceleration is needed....
25446
Andrea Milani
milani@...
Jun 6, 2011 3:51 pm
Announcement: The beta-test phase of the new version AstDyS-2 of our asteroid online information service AstDyS can be considered complete. Thus we are now ...
25447
Brian Skiff
bas@...
Jun 6, 2011 8:18 pm
This is a single-night raw plot for this recent Amor. It is yet another modest-amplitude tumbler with a characteristic cycle- length of around 6.2 - 6.3...
After a period of ill health I am doing a little observing and want to be sure I get the new discovery rules. Could someone please tell me if I misunderstood...
Hi Matt, ... You got it *almost* right (if I understand the rules correctly). The only thing you missed is that not the time of the observation itself counts...
I'm currently enganged in a debate on Twitter with a rubber chicken (the mascot of the SDO satellite or its human - I suppose - handler rather) on whether the...
Can't answer that question. I'm sure someone on the list knows, but on the face of it it is wrong. As with all science advancing, 15 or 20 years ago we didn't...
Well, actually, it is not that simple. First of all, it is not the first observation, but the first observation during the earliest opposition with at least...
25454
Jean-Claude MERLIN
jcmerlin@...
Jun 8, 2011 4:52 pm
Many authors attribute the sentence to Larry Niven but it seems it is rather due to Arthur C. Clarke : http://en.wikiquote.org/wiki/Larry_Niven JC ... From:...
25455
Ron Baalke
baalke@...
Jun 8, 2011 10:00 pm
http://www.esa.int/esaCP/SEM38RJ4LOG_index_0.html Rosetta comet probe enters hibernation in deep space European Space Agency 8 June 2011 The final command...
Hello, I always thought that the sidereal period(P_1) of asteroids have been defined by far away star or spring equinox. But some one tell me Sun is the...
