## Profile

Paul Carr
Attended Johns Hopkins University
1,925 followers|1,273,338 views

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### Paul Carr

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Look what the mailman brought me just now. Now I know at least 1 #podcast interview I'll be doing soon.﻿
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Ah, you got your copy. Now you can see if the index includes "planetary scale life."﻿

### Paul Carr

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Come back and buy this town

#snippets﻿
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These Gaia alerts can be interesting to sort through. This is another one that caught my eye. Although this red star has been cataloged before, it would seem that not much is known about it, although it does seem to have a fairly low proper motion. We might want to keep an eye on the followup tab.﻿
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Abstract: The main benefit of an interstellar mission is to carry out in-situ measurements within a target star system. To allow for extended in-situ measurements, the spacecraft needs to be decelerated. One of the currently most promising technologies for deceleration is the magnetic sail which ...
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Brightness temperature explained.﻿
When we look at the sky at night with our unaided eyes, we see about 2000 stars of various levels of brightness, and if we are far from city lights we may see the faint band of the Milky Way, which is the light from billions of stars making up our galaxy. But if our eyes were able to see ...
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To my untrained eye, this is fairly persuasive, and is consistent with the data release guidance to assume about plus or minus 0.3 mas systematic error. So, if correct, it mostly nails down the systematic error and says that #KIC8462852 is about 40 parsecs closer than Gaia DR1 advertises, plus or minus the noise.﻿
Abstract: We test the parallaxes reported in the Gaia first data release using the sample of eclipsing binaries with accurate, empirical distances from Stassun & Torres (2016). We find a clear average offset of $-$0.25$\pm$0.05 mas in the sense of the Gaia parallaxes being too small (i.e., ...
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My shirt from the #KIC8462852 Kickstarter is here.﻿
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Slick!﻿

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A possible optical SETI target? Maybe.

Gaia16aus was observed brightening by about 40% in July of this year. The star is in the 2MASS point source catalog as 16024566-4826274, but I can't find a proper motion or spectral type for it. It might not even be a star.

2015-10-16 22:46:56,2457312.449,19.51
2016-03-08 04:59:46,2457455.708,19.51
2016-07-14 11:11:03,2457583.966,19.13
2016-07-14 12:57:37,2457584.040,19.17
2016-08-02 17:22:20,2457603.224,null
2016-08-02 19:03:40,2457603.294,19.55
2016-09-06 04:48:45,2457637.701,19.51
2016-09-06 06:35:19,2457637.775,19.48

﻿
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### Paul Carr

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Picture of a Mountain Gorilla right before he punched the photographer. Embedded image. 6:13 PM - 21 Sep 2016. 221 Retweets440 Likes. Reply to @planetepics. Replies. Dean Herman. 35m35 minutes ago. Dean Herman @DHermanUSA. @planetepics pic from Charlotte tonight? Rollstuhl ️.
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More College Park graffitti:﻿
Afghanistan (+93) ; Albania (+355) ; Algeria (+213) ; American Samoa (+1) ; Andorra (+376) ; Angola (+244) ; Anguilla (+1) ; Antarctica (+672) ; Antigua, Barbuda (+1268) ; Argentina (+54) ; Armenia (+374) ; Aruba (+297) ; Ascension (+247) ; Australia (+61) ; Austria (+43) ...
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Abstract: At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7. We summarize Gaia DR1 and provide illustrations of the scientific quality of the data, ...
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Communities
30 communities
Work
Occupation
Space Mission Systems Engineer
Skills
Exactly failing to please the eye. Getting the hang of Thursdays (often enough). Looming. Shouting (I'm really very good at shouting). Space mission design, analysis and execution.
Basic Information
Gender
Male
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Friends, Networking
Relationship
Married
Story
Tagline
Space Systems Engineer, blogger, podcaster, investigator
Introduction
Feel free to circle me, but if you want me to circle you back, then please have some content in your profile, use your real name, and provide some information on who you are, and some clear indication of what interests you. Please don't use a stock photo fro your profile pic - that's a red flag.

I suffer from a low curiosity threshold.  I am a space systems engineer, blogger, podcaster and a skeptical but open-minded investigator.   Especially interested in space, astronomy, and the search for intelligent ETs.  Although most of my G+ posts are science or space related, I also spout off on music from time, totally unqualified though I am.

My two closely related podcasts are: Unseenpodcast.com and wowsignalpodcast.com. To join the panel pool for the Unseen Podcast, please visit the Participant's Community and knock on the door. We usually record Friday nights on the East Coast of the US

Trying to keep my middle-aged body in shape and a bit safer by learning Krav Maga.  Train at Pure Performance Martial Arts in Rockville, Maryland.

My CV