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How to find T Coronae Borealis

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#1 Astro_In_Tampa

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Posted 27 March 2025 - 08:04 PM

So tonight is supposed to be the big night T Coronae Borealis goes nova.

 

For the life of me I can't remember the target you use for the Seestar to image TCrB. 

 

NGC2057 rings a bell for some reason. Can anyone confirm??



#2 Astro_In_Tampa

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Posted 27 March 2025 - 08:15 PM

Disregard... As soon as I hit the "Post" button I figured it out. 

 

IC4587....


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#3 kgb

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Posted 27 March 2025 - 09:08 PM

I hope it waits till at least midnight because I have a tree up to 20°. Then I hope it is before 1:00am because clouds are expected to roll in. 



#4 Astro_In_Tampa

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Posted 27 March 2025 - 09:13 PM

I hope it waits till at least midnight because I have a tree up to 20°. Then I hope it is before 1:00am because clouds are expected to roll in. 

Lol... Well I don't get home and set up until ~ 11:30. So I'll tell it to take it's time going nova. Hope it helps. laugh.gif


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#5 kgb

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Posted 27 March 2025 - 09:20 PM

I took before pictures before so as long as I can snap it before it fades, I will be content. Spring is absolutely the worse time for me in terms of weather though.

#6 Astro_In_Tampa

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Posted 27 March 2025 - 09:25 PM

I took before pictures before so as long as I can snap it before it fades, I will be content. Spring is absolutely the worse time for me in terms of weather though.

Down here in the swamp there's rarely a good time of year for good weather. The skeeters are already out and hungry and the humidity is up there along with the temp. Another reason I love the SeeStar. I can set it out there and get back to my recliner and AC quickly.

 

Best of luck to you. I hope we're both able to catch this thing doing its thing!  


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#7 Jim Waters

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Posted 27 March 2025 - 10:13 PM

Any update on its Nova predictions?



#8 TCrB

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Posted 27 March 2025 - 10:15 PM

Here’s what I had saved for a manual entry a while back. Screenshot attached.

Attached Thumbnails

  • IMG_0806.jpeg

Edited by TCrB, 27 March 2025 - 10:20 PM.


#9 kgb

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Posted 27 March 2025 - 10:37 PM

Down here in the swamp there's rarely a good time of year for good weather. The skeeters are already out and hungry and the humidity is up there along with the temp. Another reason I love the SeeStar. I can set it out there and get back to my recliner and AC quickly.

Best of luck to you. I hope we're both able to catch this thing doing its thing!

You too Florida man!

Edit:😂

Edited by kgb, 27 March 2025 - 10:38 PM.


#10 TCrB

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Posted 27 March 2025 - 10:37 PM

Search 

results 

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  • IMG_0807.jpeg


#11 geoffl

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Posted 28 March 2025 - 02:12 AM

Disregard... As soon as I hit the "Post" button I figured it out. 

 

IC4587....

This is what I use with my S50. The angle to T CrB changes with the seasons, but the distance does not.

 

1719097601655 (T CrB) annotated
 
The sky atlas on my Dwarf 2 has the "T" identified. I usually start at epsilon CrB and work towards the left and slightly down.

 

Geoff


Edited by geoffl, 28 March 2025 - 02:17 AM.


#12 gordtulloch

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Posted 28 March 2025 - 06:25 AM

T Cr Bor has been due to blow for months, there's no way to predict a specific day. Check it nightly as when it does go by the time you hear about it, you'll miss the rampup to full brightness.



#13 Astro_In_Tampa

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Posted 28 March 2025 - 11:42 AM

So I set the scope up in EQ mode with the new dew shield and set it to collect 10 sec subs for 4 hours. I wound up with 1039 subs (~2.9hrs) of fit files.

 

Here's the result. Doesn't look like T CrB exploded to me. What do you all think?

 

EDIT: Added a pic from July of last year for comparison

Attached Thumbnails

  • Blaze Star T CrB 2.JPG
  • T CrB July 13 2024.jpg

Edited by Astro_In_Tampa, 28 March 2025 - 11:51 AM.

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#14 jprideaux

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Posted 29 March 2025 - 07:12 AM

I think when specific dates are reported predicting the Nova, those should be considered probability Bell-curves centered on certain dates according to certain computer models where the actual date is still uncertain and could be days, weeks, or months away.

#15 gordtulloch

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Posted 29 March 2025 - 06:40 PM

The expected dates were based on prior eruptions of the nova. These were pretty much last May, so now we're at "Any time now!"



#16 Roger Corbett

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Posted 31 March 2025 - 03:20 PM

Your photos sure make it look like something happened!  However, are they photos of the same star field?  Did you inadvertently capture a bright orangish or reddish star somewhere nearby?

 

There's been no news anywhere of it and there certainly would have been if the Blaze Star had blazed.

 

Last year, as I recall, the expectation was sometime summer or fall.  Given its irregularity — recurrent novae are not on a precise time schedule — keep in mind that it's not an eclipsing binary, Cepheid, or other clockwork type variable (and even some of the Cepheids have been known to change such as Polaris), it could be any day, any month, or even any year now!   Still, its past performance has been semi-regular, which is why expectations have been raised.



#17 Astro_In_Tampa

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Posted 31 March 2025 - 06:06 PM

Your photos sure make it look like something happened!  However, are they photos of the same star field?  Did you inadvertently capture a bright orangish or reddish star somewhere nearby?

 

Nope. Same star field 8 months apart. One processed image showing 2hr 45min worth of stars, one unprocessed image showing 11min worth of stars.




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