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Exoplanet WASP-3b in Lyra



 
 
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  #1  
Old June 14th 08, 12:42 PM posted to sci.astro.amateur
Anthony Ayiomamitis[_3_]
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Posts: 115
Default Exoplanet WASP-3b in Lyra

Dear group,

One of the latest exoplanet announcements involves WASP-3b in Lyra and
which requires 160 minutes to transit its parent star and at a depth
of 11.4 mmag. Given its proximity to its parent star and relatively
high mass (1.76x that of Jupiter), WASP-3b is one of the largest and
hottest Jupiter-like finds so far.

The ten-day old moon was a problem during the four-hr session last
night and thankfully my Baader Infrared Pass filter did a wonderful
job in helping improve contrast while minimizing the mitigating
effects of the lunar light (pollution).

The results from last night's session are available at
http://www.perseus.gr/Astro-Photomet...3-20080613.htm .

All systems are go for Sunday evening and a visit to another foreign
world but this time in Ursa Major.

Clear skies!

Anthony.
  #2  
Old June 15th 08, 07:00 AM posted to sci.astro.amateur
jerry warner[_8_]
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Posts: 133
Default Exoplanet WASP-3b in Lyra

wonderful Anthony.

Anthony Ayiomamitis wrote:

Dear group,

One of the latest exoplanet announcements involves WASP-3b in Lyra and
which requires 160 minutes to transit its parent star and at a depth
of 11.4 mmag. Given its proximity to its parent star and relatively
high mass (1.76x that of Jupiter), WASP-3b is one of the largest and
hottest Jupiter-like finds so far.

The ten-day old moon was a problem during the four-hr session last
night and thankfully my Baader Infrared Pass filter did a wonderful
job in helping improve contrast while minimizing the mitigating
effects of the lunar light (pollution).

The results from last night's session are available at
http://www.perseus.gr/Astro-Photomet...3-20080613.htm .

All systems are go for Sunday evening and a visit to another foreign
world but this time in Ursa Major.

Clear skies!

Anthony.


  #3  
Old June 15th 08, 06:17 PM posted to sci.astro.amateur
TBerk
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Posts: 240
Default Exoplanet WASP-3b in Lyra


Quote:
It (3b) is characterized with a mass nearly twice that of Jupiter and
a very brief orbital period of only 44.3 hours. WASP-3b requires 160
minutes to transit its parent star at a depth of 1.14%.
1st off I want to thank you for this, it is impressive.

Secondly I was wondering if it would be any trouble to help me
understand something about your results;

- What does the word 'depth' refer to?

I'm professing my lack of total knowledge about everything,
everywhere, all the time.


TBerk
44.3 hour orbit, twice as big as Jupiter. Wow.
  #4  
Old June 16th 08, 06:46 AM posted to sci.astro.amateur
jerry warner[_8_]
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Posts: 133
Default Exoplanet WASP-3b in Lyra



Sam Wormley wrote:

Anthony Ayiomamitis wrote:
Dear group,

One of the latest exoplanet announcements involves WASP-3b in Lyra and
which requires 160 minutes to transit its parent star and at a depth
of 11.4 mmag. Given its proximity to its parent star and relatively
high mass (1.76x that of Jupiter), WASP-3b is one of the largest and
hottest Jupiter-like finds so far.

The ten-day old moon was a problem during the four-hr session last
night and thankfully my Baader Infrared Pass filter did a wonderful
job in helping improve contrast while minimizing the mitigating
effects of the lunar light (pollution).

The results from last night's session are available at
http://www.perseus.gr/Astro-Photomet...3-20080613.htm .

All systems are go for Sunday evening and a visit to another foreign
world but this time in Ursa Major.

Clear skies!

Anthony.


Thank you Anthony ... Brings a smile to me on another night of
severe storms in Iowa.


Iowa crested last night, Cedar is falling. CR is a disaster.
We may escape here. Will know by Wednesday

  #5  
Old June 17th 08, 09:28 AM posted to sci.astro.amateur
Vossinakis Andreas[_2_]
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Posts: 6
Default Exoplanet WASP-3b in Lyra

Well done Anthony, very nice photometry

Andreas Vossinakis


  #6  
Old June 17th 08, 11:49 PM posted to sci.astro.amateur
Anthony Ayiomamitis[_3_]
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Posts: 115
Default Exoplanet WASP-3b in Lyra

Thanks to everyone for the kind words. I have a lot of planned work
for the latter part of June and there will be lots more results to
share with everyone.

With respect to the friend asking about depth, it is the amount by
which the magnitude of the host star drops when the exoplanet is
transitting its disk and thereby blocking some of the light. For
example, a depth of "12 mmag" means that the magnitude of the parent
star will drop by 0.012 magnitudes during transit (ex. from 10.000 to
10.012).

I have captured eight exoplanets so far with depths varying from 6.2
mmag (ie. 0.0062 magnitudes) to 33 mmag (0.033 magnitudes) and which
you can see at http://www.perseus.gr/Astro-Photometry.htm ... I should
have 20 total exoplanets in the bag by the end of July.

Clear skies to everyone!

Anthony.

On 17 Ιούν, 11:28, "Vossinakis Andreas"
wrote:
Well done Anthony, very nice photometry

Andreas Vossinakis


  #7  
Old June 27th 08, 09:43 AM posted to sci.astro.amateur
Odysseus[_1_]
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Posts: 534
Default Exoplanet WASP-3b in Lyra

In article
,
TBerk wrote:

Quote:
It (3b) is characterized with a mass nearly twice that of Jupiter and
a very brief orbital period of only 44.3 hours. WASP-3b requires 160
minutes to transit its parent star at a depth of 1.14%.

snip

- What does the word 'depth' refer to?


I presume the proportional amount of dimming caused by the transit.
Picture measuring the 'dip' in the star's light-curve; while we speak of
the "height" of a peak, a trough has "depth".

--
Odysseus
 




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