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Observing >> Variable Star Observing and Radio Astronomy

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markan
super member


Reged: 07/13/09
Posts: 126
Validation of observations
      #3396565 - 10/18/09 04:30 PM

Could someone explain what is meant by validation?

Z And for example seems to have a variety of prevalidated observations. Thanks



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Sky-Watcher 100mm ED f/9 refractor
Sky-Watcher 200mm f/5 reflector
EQ5 mount, Orion SkyView AZ


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brianb11213
Carpal Tunnel


Reged: 02/25/09
Posts: 2076
Loc: 55.215N 6.554W
Re: Validation of observations new [Re: markan]
      #3396801 - 10/18/09 06:59 PM

Well I don't know about "unknown" but V, B, R & I are photoelectric / CCD measures using filters. V approximates to visual but the others can be very different, as the graph shows ... the extra brightness in the I band (infra red) and R band (red) and the lower brightness in the B band (blue) shows that the star is a cool object; the reducing spread recently shows that the star has become hotter (bluer) as the outburst occurs.

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walt r
Post Laureate


Reged: 02/13/07
Posts: 3458
Loc: Doylestown, PA
Re: Validation of observations new [Re: brianb11213]
      #3397101 - 10/18/09 09:50 PM

At one time when the AAVSO received data it was validated by a person who looked at the data and compared it to previous data. If the data was within a reasonable range it was then validated. I did notice that data I submitted was validated within a few days.

About a year ago my data was showing as prevalidated right after being submitted. The data is now check for proper entry of the data fields (chart #, comp star, etc) for gross errors and marked Previladated.
Here and here are links the AAVSO validation process.

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Walt

Obsession 18" f/4.45 #1370 AN/SC
MK67 Deluxe 6" f/12 Mak-Cass, Super Polaris GEM, JMI MicroMax DSC
DIY 60mm f/6 Achromat
Cookbook 245 CCD


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markan
super member


Reged: 07/13/09
Posts: 126
Re: Validation of observations new [Re: walt r]
      #3406884 - 10/23/09 06:56 PM

So if this is an interacting binary system, it's really 2 stars I'm looking at when I make an observation. I'm starting to see that Mira variables are red. I hope I get another look at this one before winter hits.

--------------------
Sky-Watcher 100mm ED f/9 refractor
Sky-Watcher 200mm f/5 reflector
EQ5 mount, Orion SkyView AZ


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