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Suspected binary black-hole outburst

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#1 Aquarellia

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Posted 19 March 2018 - 04:40 AM

As you maybe know, I like to have a look at some exotic objects in our universe laugh.gif .

Try this one, as a very special system.  On top of that this is a very easy observation to do, mainly in the morning.

The system's J2000 coordinates are 18 20 21.95, +07 11 07.3.

The magnitude I estimated this morning was +/- +12.3 and probably brighten.

 

asassn-18ey_20180319_l.jpg

 

For more information have a look here : https://www.aavso.or...bright-outburst

 

Clear sky to you all

Michel


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#2 Sheliak_sp

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Posted 19 March 2018 - 04:59 AM

Wow, this is so exciting!!! Thanks a lot for sharing this Michel, I will try to see it tomorrow! bow.gif bow.gif waytogo.gif

 

Migue



#3 Uwe Pilz

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Posted 19 March 2018 - 07:46 AM

Thank you for observing this interesting object.



#4 frank5817

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Posted 19 March 2018 - 08:40 AM

Michel,

 

This is a very impressive observation and sketch.

Way to go.

 

Frank smile.gif


Edited by frank5817, 19 March 2018 - 08:41 AM.


#5 niteskystargazer

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Posted 19 March 2018 - 02:28 PM

Michel,

 

Nice sketch of Suspected Binary Black-hole Outburst smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#6 Sheliak_sp

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Posted 20 March 2018 - 06:14 AM

I could see it last night, it was exciting! Here is my sketch;

 

https://elnidodelast...eno-telescopio/

 

maxi-j1820070.png?w=404maxi-j1820070-detalles.png?w=404&h=505ç

 

Thanks again Michel, if you didnt post it I wouldnt have known about its existence waytogo.gif

 

Migue


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#7 Aquarellia

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Posted 20 March 2018 - 08:18 AM

Thank you all for your friendly comments.

Yess Migue you get it, it's nice to see that.  Your sketches are great and very accurate.

 

For your information there is more about this object here: 

https://www.aavso.or...lert-notice-624

 

Clear sky to you all

Michel



#8 Aquarellia

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Posted 22 March 2018 - 05:51 AM

If I had a very short focus EP lol.gif and a very long refractor lol.gif lol.gif plus a special laser to cancel the atmosphere bugs lol.gif lol.gif lol.gif ,

that's what I can maybe see:

 

mdc2_l.jpg

 

I did this watercolor just based on what I suspect this exotic object could be.

This morning 22/3/2018 3:48 UTC my visual estimated magn was +12.3, quite stable.

 

Michel


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#9 Aquarellia

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Posted 23 March 2018 - 05:03 AM

This morning (03/23 4:00 UTC) the magnitude was +/- +12.2

 

ASASSN-18ey.jpg

 

Clear sky to you all

Michel


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#10 David Gray

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Posted 26 March 2018 - 04:01 AM

Thanks for the heads up on this Michel.........

 

I was up earlier than planned this morning after thinking we heard a prowler out front.

 

No one about but lovely clear and steady-looking sky......I was planning for Jupiter, Mars, and hopefully Saturn; but up so soon I took a first look at the outburster, and delayed with Jupiter.

 

Made it 11.8 (AAVSO chart): and at that level I start to get colour impressions (fainter – with reddish objects).  Tho’ here not so sure if I quite got a reliable impression – more of a ‘sensing’ – of an intense bluish; which seemed to vie with contrasting it with the orange 10.9 star to its north.

 

Good views of the three planets (first this/their apparition....!).  Hope to post later – when I make up some lost sleep............!

 

Dave.



#11 Aquarellia

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Posted 27 March 2018 - 10:14 AM

Thanks for the heads up on this Michel.........

 

I was up earlier than planned this morning after thinking we heard a prowler out front.

 

No one about but lovely clear and steady-looking sky......I was planning for Jupiter, Mars, and hopefully Saturn; but up so soon I took a first look at the outburster, and delayed with Jupiter.

 

Made it 11.8 (AAVSO chart): and at that level I start to get colour impressions (fainter – with reddish objects).  Tho’ here not so sure if I quite got a reliable impression – more of a ‘sensing’ – of an intense bluish; which seemed to vie with contrasting it with the orange 10.9 star to its north.

 

Good views of the three planets (first this/their apparition....!).  Hope to post later – when I make up some lost sleep............!

 

Dave.

You welcome Dave

The magnitude you mension is exactly the one I estimated this morning:  +11.8.  With my small aperture refractor I don't see any clear color for this object however I have also something like a 'sensing' impression but this one for a rapid magnitude change in comparison with the near +12.0 star.  Maybe we dream there...

 

Michel



#12 David Gray

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Posted 27 March 2018 - 01:59 PM

Thanks Michel glad we get similar magnitude for it, albeit not on the same date..

 

I hope for another look at the colour:. Looking on some sites today I failed to spot

any B-V values......but some comments about it *red-flaring*.......??!

 

A closer/longer look next time methinks.....

 

Dave.



#13 Aquarellia

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Posted 27 March 2018 - 02:51 PM

Thanks Michel glad we get similar magnitude for it, albeit not on the same date..

 

I hope for another look at the colour:. Looking on some sites today I failed to spot

any B-V values......but some comments about it *red-flaring*.......??!

 

A closer/longer look next time methinks.....

 

Dave.

Yes just one day difference but the curve is rising very slowly, so our two estimations are matching.

For the color I don't know, AAVSO is asking for white light estimation only, that make more difficult for B-V info... I don't see yet any observation out of V.

Michel



#14 frank5817

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Posted 27 March 2018 - 10:53 PM

Michel,

 

Getting a little brighter. I would really like to see this live through a telescope.

 

Frank :)


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#15 Aquarellia

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Posted 28 March 2018 - 12:11 AM

Michel,

 

Getting a little brighter. I would really like to see this live through a telescope.

 

Frank smile.gif

That must be easy for your lattitude, high in the morning sky.

Except for the maybe red-flaring color from Dave or my maybe magnitude quick variations, it looks like a common star.

Ok but when you know what it is,...

Michel




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