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Posting my Exoplanet Transit Plots here

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#1 SeymoreStars

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Posted 08 February 2024 - 03:02 PM

I just redid Qatar-9 b with the AAVSO macro hopefully that will enable uploading to NASA  Exoplanet Watch.

 

 

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Edited by SeymoreStars, 09 February 2024 - 08:20 AM.

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#2 SeymoreStars

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Posted 08 February 2024 - 03:04 PM

K2-371 b, the skies were not great and exposure times were 300 seconds.

 

 

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#3 SeymoreStars

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Posted 08 February 2024 - 03:05 PM

KPS-1 b better conditions 60 secon exposures.

 

 

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Edited by SeymoreStars, 08 February 2024 - 04:48 PM.

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#4 topcode

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Posted 08 February 2024 - 07:48 PM

Looks pretty nice! What equipment were you using?



#5 SeymoreStars

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Posted 08 February 2024 - 08:15 PM

Looks pretty nice! What equipment were you using?

The telescope is a 17 inch CDK.


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#6 River Hills

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Posted 08 February 2024 - 10:39 PM

Looking good! Those results must be satisfying.



#7 SeymoreStars

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Posted 08 February 2024 - 11:29 PM

Looking good! Those results must be satisfying.

Most satisfying at this moment is comprehending the complexity of AIJ.



#8 SeymoreStars

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Posted 11 February 2024 - 10:18 AM

Using the AIJ Macro was the key to getting the transits to migrate up from AAVSO to NASA Exoplanet Watch.

 

 

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#9 River Hills

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Posted 12 February 2024 - 11:33 AM

i have looked at AIJ and can see a learning curve there. I am enrolled in the AAVSO course with Ed Wiley in March and I soon hope to be doing photometry. The eventual goal is to be up to speed to be able to do exoplanet work, so posting  your results is appreciated.

Are you using a filter for the transit work? 

Clear skies,

Rick



#10 SeymoreStars

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Posted 12 February 2024 - 11:48 AM

Hi Rick I am using a Johnson V filter as recommended by Dennis Conti. If you go to the AAVSO Exoplanet download data site -  you can gather a wealth

of data about the exoplanets.

 

I took Ed Wiley's Photometry course last year, very worthwhile.

 

Here is a youtube video about AIJ, I have watched it numerous times and learned much from it - https://www.youtube.com/watch?v=GW--rE5O-c8

 

Steve


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#11 River Hills

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Posted 12 February 2024 - 03:56 PM

Great, Thanks! I shall watch that video.

Rick



#12 SeymoreStars

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Posted 15 February 2024 - 12:57 PM

Last night's adventure, to say it had a close neighbor is an understatement.

 

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  • HAT-P-22__b.png

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#13 pvdv

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Posted 16 February 2024 - 06:34 AM

Nice one. Easy for a 0.43m but you do get essentially perfect parameters on the model. You certainly have nailed the acquisition process. 

On the close neighbor issue, the focal lengh does help :) (and, incidentally, this shows that one doesn't need to be overly afraid of a slightly hotter pixel here and there)

But why do you scale (rel_flux_T1-0.417) ? This is just cosmetic but it is somewhat visually unsettling ;)


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#14 Tapio

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Posted 16 February 2024 - 06:47 AM

Just saw this thread.
What is a AAVSO macro?

I'm a AAVSO member - in fact just reveived 1000 observations diploma :)
But that is new to me.
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#15 SeymoreStars

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Posted 16 February 2024 - 08:32 AM

Tapio do you upload Exoplanet transits?

 

What is your Obscode?

 

Steve



#16 Tapio

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Posted 16 February 2024 - 08:41 AM

It's been a while since I uploaded something in AAVSO. And just 'regular' variables. Must activate again.

Will tell my obscode later...which is LTAA.


Edited by Tapio, 16 February 2024 - 02:07 PM.


#17 SeymoreStars

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Posted 16 February 2024 - 08:46 AM

It's been a while since I uploaded something in AAVSO. And just 'regular' variables. Must activate again.

Will tell my obscode later...

The macro is for uploading Exoplanet transit observations processed using AstroImageJ only. It can be found on Dennis Conti's page - https://astrodennis.com/



#18 SeymoreStars

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Posted 16 February 2024 - 09:49 AM

Nice one. Easy for a 0.43m but you do get essentially perfect parameters on the model. You certainly have nailed the acquisition process. 

On the close neighbor issue, the focal lengh does help smile.gif (and, incidentally, this shows that one doesn't need to be overly afraid of a slightly hotter pixel here and there)

But why do you scale (rel_flux_T1-0.417) ? This is just cosmetic but it is somewhat visually unsettling wink.gif

pvdv I am still wet behind the ears and do not understand your comment about - "scale (rel_flux_T1-0.417)"

 

If you could explain in greater detail I'd appreciate it.

 

Thanks

Steve



#19 pvdv

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Posted 16 February 2024 - 10:11 AM

That' the scale of your Y-axis. You have probably moved the lines around a bit for the display.
I would keep the baseline as 1 (as you did in your KPS-1b data) and not at 0.583 ( 1- 0.417) as you did here.
As I said, it is just cosmetic, no impact on your data. But keeping 1.0 as a baseline allows you to visualize PPT more directly.
 


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