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Image of the day 2023-11-28

New Discovery - Falls Object 3: The Ghast Nebula

New Discovery - Falls Object 3: The Ghast Nebula 11 months ago 2.9k views5310×388117.98 MB

New Discovery - Falls Object 3: The Ghast Nebula
Comments
Yann Sainty 11 months ago
Congrats for this new one! The image is really cool!
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Bray Falls 11 months ago
Thanks Yann!
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Robert Gillette 11 months ago
Stunning! Congratulations.

CS, Bob
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Bray Falls 11 months ago
Thanks Bob!
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Philippe Oros 11 months ago
Congrats for this discovery and the beautiful image Bray !!
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Bray Falls 11 months ago
Thank you Philippe!
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Joe Matthews 11 months ago
Congratulations on the discovery and thank you for your explanation.
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Bray Falls 11 months ago
Thanks Joe! Although I must admit my explanation at this point is probably awful
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Niraj 11 months ago
This is really fascinating Bray...congrats on this..
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Bray Falls 11 months ago
Thanks Niraj!
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Daniel Stern 11 months ago
Stunning.  I have a CDK17 in Chile.  I'll take a look tonight.  I have visibility all night. I'll take mostly O3 but will check for some S2 also.
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Bray Falls 11 months ago
Thanks Daniel! The CDK17 should return some very interesting filamentary details. I am excited to see!
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Daniel Stern 11 months ago
Bray, I shot O3 with the CDK-17 and got no signal.  I checked the coordinates again and they seem to be correct.  I'm not sure what the problem is.
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Daniel Stern 11 months ago
Correction.  With about 10 hours of O3 I'm just starting to see something.
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Bray Falls 11 months ago
yeah it will take a fair bit, maybe 25-30hrs for something nice on the cdk
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Daniel Stern 11 months ago
Hi Bray, Congrats on the the very well deserved IOTD.  I am still working on the CDK-17 imaging.  I have almost 30 hours of O3 and the signal is still very soft.  I'll keep going but I'll take at least 50-100 hours to get something worthwhile.  At some point we should consider combining the data.
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Bray Falls 11 months ago
Send me what you've got so far! We may be able to make something from that already. I don't think the FSQ85 data would combine very nicely, but we could definitely do a collab post if you're interested
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Daniel Stern 11 months ago
Yeah, combining with a BabyQ won't be the best.  As it turns out, I have one of those in Chile as well.  Let me know your email address so I can send you a link to the data.
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Bray Falls 11 months ago
braylfalls@gmail.com
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Manfred Fröhlich 11 months ago
Great!!!!!The many hours of exposure were worth it. I am flashed.
CS Mani
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Bray Falls 11 months ago
Thanks Manfed!
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Adriana Amez 11 months ago
Simply fascinating!! I love these types of objects!!
Congratulations Bray!
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Bray Falls 11 months ago
Thanks Adriana!
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DanaPatchick 11 months ago
Hi Bray -  I'm betting it's a real PN.  The hot star is a sdO spectral type, of which are well known to be capable producers of planetary nebula.

The coordinates of that hot star are 01 32 12.6  -49 33 41.1  by the way.    Slightly different from the RA and Dec center as presented above.

I see a rough diameter of some 12 arc minutes to the shell.  

It's a beauty!

-Dana
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Bray Falls 11 months ago
Hopefully I can get some spectra at some point and find out for sure! Thanks Dana
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Göran Nilsson 11 months ago
A real beauty Bray! Congratulations! Amazing that something as big as this has gone unnoticed, and can be imaged with a smallish refractor. Maybe it is because it is located in a rather empty part of the sky so therefore not accidentally found when aiming at something known. How did you find it? Were you going for hot stars?
Cheers, Göran
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Bray Falls 11 months ago
Thanks! I'm too uneducated at astronomy to know which hot stars are good, so I just do a grid survey search.
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Victor 11 months ago
Really nice capture.
Congrats Bray.
Vic
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Joe Zitarelli 11 months ago
Interesting image. That’s a lot of time in Oiii.  Are you able to see it on a raw 600” sun?  How did you determine it is 3800 ly away?

thanks for posting
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Bray Falls 11 months ago
In a single sub it is barely visible. The distance can be determined from the parallax of the central star, sometimes in vizier the math will already be done and they will provide a distance figure
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shepherdcrane 11 months ago
The presence of Oiii and relative absence of H-alpha is a mystery according to contemporary astrophysics. 
In other competing paradigms, the segregation of different elements, different molecules, and different energies is built into the physics. For example, see Marklund Convection as a starting point.
https://www.plasma-universe.com/marklund-convection/
https://www.thunderbolts.info/wp/2019/12/10/marklund-convection-2/
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Hayden O'Brien 11 months ago
Love the name choice lol. Keep it up Bray, I've loved seeing your work as of late.
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Bray Falls 11 months ago
Thanks Hayden!
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Georg N. Nyman 11 months ago
Congratulations - a new member of the club of nebulae! Very interesting and super done!
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Bray Falls 11 months ago
Thanks Georg!
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Steeve Body 11 months ago
Well done man. Really cool object and so... random! I like the "the bow shock shape" front created by the star movement explanation... I mean how else could you explain that at this stage!
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Bray Falls 11 months ago
Thanks Steeve! Yeah I feel like that guy on youtube who says 'you can tell its an aspen tree by the way it is". Really grasping over here
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mastermerlin 11 months ago
Congratulations on the IOTD!
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Eduardo Rigoldi Fernandes 11 months ago
Greetings Bray Falls,

I dedicate time to photographing potential NP candidates in the southern hemisphere. Thus far, my efforts have not yielded any results.

I am curious about your decision to target this specific location using a relatively small refractor. Despite the exceptional quality of the Takahashi equipment, it is anticipated that discernible features will only manifest after several hours of exposure.

Was your success attributed to serendipity, or did a specific technique come into play? If you are inclined to share your insights, I would greatly appreciate it.

Congratulations on being featured as the Image of the Day (IOTD).

Eduardo
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Bray Falls 11 months ago
I encountered it while surveying, the FSQ85 image just being a follow-up to the survey! So its mostly lucky, but in a 'make your own luck' kind of scenario
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I understand.
Thank you!

Once again, congratulations on the beautiful picture!
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(deleted) 11 months ago
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Martin Junius 11 months ago
Congrats! At 33h of OIII, I'm not quite sure what you put in the category "not crazy faint", though. ;-)
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Bray Falls 11 months ago
The M31 Oiii arc takes the cake for now! Everything else seems like a snapshot in terms of Oiii integration lol
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Arny 11 months ago
Wonderful ghastly :-)

How do you gather these incredible long exposure times ?

Arny
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Bray Falls 11 months ago
An exceptionally good observing season this year at Hakos in Namibia!
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Nick Ambrose 11 months ago
Nice work !
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Bray Falls 11 months ago
Thanks Nick!
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Ani Shastry 11 months ago
Amazing discovery! Congratulations!
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erick aureoles 11 months ago
Nice! Great Job 👏🏽
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