(meteorobs) meteor app
Stuart McDaniel
actionshooting at carolina.rr.com
Tue Apr 23 08:13:17 EDT 2013
I gotcha.
Stuart McDaniel
.....(mobile)......
On Apr 23, 2013, at 1:52, Jodie Reynolds <spacerocks at spaceballoon.org> wrote:
> Hello Stuart,
>
> You don't. You sit down and write it. Hence the
> "spaceappsCHALLENGE".
>
> "We would love to find developers who would like to make this fun,
> easy, citizen science astro app happen!"
>
> It's all hat and no cattle. :-)
>
> --- Jodie
>
>
> Monday, April 22, 2013, 7:31:40 PM, you wrote:
>
>> Where do you get this app?
>
>
>> *****************************
>> Stuart McDaniel
>> Lawndale, NC
>> Secr.,
>> Cleve. Co. Astronomical Society
>
>> IMCA #9052
>> Sirius Meteorites
>
>> Node35 - Sentinel All Sky
>
>> http://spacerocks.weebly.com
>
>> *********************************
>
>> From: Terry Johnson
>> Sent: Sunday, April 21, 2013 11:55 PM
>> To: 'Meteor science and meteor observing'
>> Subject: (meteorobs) meteor app
>
>
>> Here’s something new!
>
>
>
>> http://spaceappschallenge.org/project/falling-star-finder/
>
>
>
>
>
>> …
>
>> Quote from the page:
>
>
>
>> “A mobile phone, sitting on the ground, will take many back-to-back
>> long-exposure images of the sky to capture meteor trails and passing
>> satellites. After the observing session, the user can upload all their
>> photos to a server for other people to find meteors in, or the photographer
>> can locally find their own meteors before upload.
>
>> Anyone can download un-traced photos into the app to join in the process!
>
>> When tracing, you look for an image with a white streak, then trace the
>> meteor trail onscreen, and align the photo with an overlaid star field. That
>> creates the precise celestial coordinate dimensions of the sky streak. The
>> photo will have the vector streak coordinates embedded right in the EXIF
>> tags with the location and time, and will be uploaded to the server.
>
>> The server will match photos from other observers within the same viewing
>> area, and use the Pythagorean theorem to find the latitude, longitude and
>> altitude of the meteor or satellite trail. The orbit can be calculated then,
>> and the resulting orbit plot and ephemeris data appear on the website and
>> alerts the users who took the photos and traced the trails.”
>
>> …
>
>
>
>> But how well could this work? What’s the field of view of a typical
>> smartphone? Do reference stars even show? The whole crowdsourcing aspect
>> is really exciting, though. Could make the job of calculating ZHR, radiant
>> size, average mag., etc., automatic.
>
>
>
>> --Terry, who only posts something every year or so. :o)
>
>
>
>
>
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>
>
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>
>
>
> --
> Best regards,
> Jodie mailto:spacerocks at spaceballoon.org
>
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