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Outburst of RS Ophiuchi

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Outburst of RS Ophiuchi was created by Keith g

Finally after many years , I have discovered the recurrent nova RS Ophiuchi is in outburst at visual magnitude 5.0, from Ireland !!

here is my report:

Hello CBAT/  all , I wish to report the visual outburst of recurrent nova RS Ophiuchi as follows:

Current Observation Information: (as of time of sending)

Observer: Keith Geary, Ireland.


Place of observation: Dunbratton County Waterford , Ireland
Date and UT of observation: 08 August 2021 2220UT
Object Confirmed Via: Binoculars/DSLR
Estimated Magnitude: 5.0
Observer Location & latitude: 52 16 35N 
7.3 degrees West
Limiting magnitude (visual - naked eye):  6.0
Seeing (1 to 5 - best to worst): 3
Charts Used: AAVSO chart X20922HZC
Moon up (phase?): no
Instrument: 20x100mm binoculars
Filters used: none
Object: Recurrent Nova
Constellation: ophiuchus 
Contact E-mail Address: This email address is being protected from spambots. You need JavaScript enabled to view it.
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Last edit: 1 month 1 week ago by Keith g.
1 month 1 week ago #110470

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Replied by Keith g on topic Outburst of RS Ophiuchi

Hi all, here is my discovery image at magnitude 5.0 08 August 2021 2220UT
   
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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Replied by Fermidox on topic Outburst of RS Ophiuchi

That's fantastic Keith!

You are credited in the ATEL from the Fermi-LAT team -

www.astronomerstelegram.org/?read=14834

Very well done!

Finbarr.
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Replied by johnflannery on topic Outburst of RS Ophiuchi

Congratulations Keith! A fantastic achievement and great dedication to keep monitoring the star.

John
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Replied by Keith g on topic Outburst of RS Ophiuchi

Thanks guys, I’m so happy to finally achieve something 

Reports from Japan are that it was still at magnitude 11.7 at 20210808.487UT

So it seems a remarkable rise in visual brightness in the 10 hours or so between that and discovery!

Keith..
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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Replied by JohnONeill on topic Outburst of RS Ophiuchi

Hi Keith,

That's fantastic news! Congratulations.

It's curious that the interval between outbursts historically can be so different.

John
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Replied by flt158 on topic Outburst of RS Ophiuchi

Hello Keith. 

Let me offer you my sincerest congratulations on discovering the current outburst of RS Ophiuchi! 

Can I ask how many times you have observed this recurrent nova in the past - if that is not too difficult a question?

Great job and a super image for sure, Keith!
Thank you. 

Clear skies from Aubrey. 

 
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Replied by Until_then-Goodnight! on topic Outburst of RS Ophiuchi

Hi Keith,

What an achievement - congratulations!

Also, very many thanks for posting your image here - great to see it.

Clear skies,
Darren.
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Replied by Paul-Byrne on topic Outburst of RS Ophiuchi

Fantastic discovery, Keith.
Spaceweather ran an artlcle:
www.spaceweather.com/

Paul
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Replied by Keith g on topic Outburst of RS Ophiuchi

Thanks gents, it's nice to see it hit the headlines !

Aubrey - I would imagine I have looked at it around 200 times since the year 2003. I nearly discovered it's previous outburst in 2006, but I was beaten by the clouds. Don't forget there are many other star systems like this that we know something or next to nothing about, the lure of variable star astronomy is addictive.

I love the anticiaption before observing, you never know just what you will get ;-)

Keith.
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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Replied by Keith g on topic Outburst of RS Ophiuchi

Hi all, Bob King contacted me today from Sky & Telescope magazine, his article is here:

skyandtelescope.org/astronomy-news/recur...i-just-blew-its-top/

Keith.

 
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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Last edit: 1 month 1 week ago by Keith g.
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Replied by Fermidox on topic Outburst of RS Ophiuchi

Fabulous! Well deserved recognition for your amazing dedication Keith.

Clouded out here in Limerick tonight - looking at the last outburst it maintained max magnitude for about a day and dropped 2-3 mags over the next 2 weeks.

Here's the AAVSO page for 13th Feb 2006 -

app.aavso.org/webobs/results/?star=rs+op...s_types=all&page=697

Finbarr.
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Replied by Keith g on topic Outburst of RS Ophiuchi

Thanks Finbarr, I have observed RS Ophiuchi again tonight at 2307 UT August 9th 2021 with  my 20x100mm binoculars, I estimated it’s visual magnitude at 4.8. It struck me that to me there is a change in colour - the star was initially blue in early outburst, I now saw a pale yellow colour.Keith.
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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Replied by R Newman on topic Outburst of RS Ophiuchi

Well done Keith, the patience finally paid off and your rewarded with your a Nova in the international astronomical headlines. A great addition to many previous Irish Amateur astronomers who have been successful with their own discoveries including John Birmingham one of the first nova hunters who in 1866 discovered the recurring T Corona Borealis. 

Ronan Newman
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Last edit: 1 month 1 week ago by R Newman.
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Replied by donalmcnamara on topic Outburst of RS Ophiuchi

Nice one Keith

Donal
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Replied by Keith g on topic Outburst of RS Ophiuchi

Thanks Ronan & Donal, to be mentioned in such company as John Birmingham is a nice thought.
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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Replied by Fermidox on topic Outburst of RS Ophiuchi

Latest reports have it at mag 5.4. Will hopefully get a look tonight under clearing skies.

Finbarr.
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Replied by Fermidox on topic Outburst of RS Ophiuchi

And so here it is 3½ days after outburst; I would estimate mag 5.3 which is a couple of tenths brighter than the latest AAVSO figures. The GAIA 2 distance is 7380 LY. Also saw two bright Perseids, one of which was ~mag -2 and left a trail for 15 seconds!



Finbarr. 
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Replied by Keith g on topic Outburst of RS Ophiuchi

Clear skies tonight again, it’s seems to be in the turn downward, tonight at visual magnitude 5.7, though it’s colour was a little more orange.

Keith. 
If a telescope can fit into your backyard it's too small. If you can't move it, it's too big." -- John Dobson
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