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C/2024 G3 (ATLAS)
开云体育Hi All: Astronaut Don Pettit captured a nice image of C/2024 G3 (ATLAS) from ISS earlier today prior to one of his local sunrises. At the time of his shot (1/9 12:59 UT, Nikon Z9 lens, f/1.2, 1/60th of second) the solar elongation was only 11 degrees. I’ll ask Don if I can share it here. Any estimate of how bright it should be right now? There are Sagittarius reference stars in his image (mu, lambda, phi, delta, gamma, eta) plus Mercury and it is far brighter than any of them. (Mercury currently -0.4, and the comet looks at least 2 or 3 magnitudes brighter).? --Rob |
Re: JPL Horizons down?
On 2025-01-09 06:52, Fabrizio Bernardi via groups.io wrote:
I was informed by a JPL colleague that JPL servers have been shut downI was informed by a JPL colleague that the Lab (presumably, the parking lots) is also now being used as a staging ground for firefighters. If you look at this horrific picture of Altadena, the Lab is just to the left of the upper left corner. I fear that many Lab employees must have lost their homes. A sad day and a terrible tragedy. Regards Marshall Eubanks Fabrizio |
Re: C/2023 A3 on 2024 sep 29 at 19UT
开云体育Dear Michael,Grateful if I can ask you a question in private. My email address is vandorps@... Best regards, Johan van Dorp Dutch Comet Section On Sep 30, 2024, at 02:19, Michael Mattiazzo via groups.io <mmatti@...> wrote:
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Re: JPL Horizons down?
开云体育I was informed by a JPL colleague that
JPL servers have been shut down for obvious safety reasons due to
the wildfire. At the Lab, only emergency related personnel is
present. So far, only minor issues affected JPL, but many
colleagues over there had to evacuate their home and some, sadly,
lost them, for what I know.?
Fabrizio
Il 09/01/25 12:47, Laura Woodney via
groups.io ha scritto:
JPL is inside the evacuation zone for the horrific Eaton fire. While the currently available maps do not show it being inside the burned region, I would not be surprised if there were no public utilities like electric going to the campus right now - explaining why the entire JPL website seems to be down. It’s certain a lot of our colleagues at JPL have lost everything. It’s very sad, and I’m sure we’ll see some crowdsourcing to help them out appear over the next few days. - Laura Professor of Physics & Astronomy, CSUSBOn Jan 9, 2025, at 3:30?AM, Shanklin, Jonathan D. via groups.io <jdsh@...> wrote: ?Maybe it's the fire. -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Thomas Lehmann via groups.io Sent: Thursday, January 9, 2025 11:28 AM To: [email protected] Subject: [comets-ml] JPL Horizons down? Hi all, I am currently unable to get anything from JPL Horizons using python3-astroquery and it looks like the JPL Solar System Dynamics web pages are not accessible either (e.g. [ssd[.]jpl[.]nasa[.]gov]). Anyone else having the same issues? Thomas This email and any attachments are intended solely for the use of the named recipients. If you are not the intended recipient you must not use, disclose, copy or distribute this email or any of its attachments and should notify the sender immediately and delete this email from your system. UK Research and Innovation (UKRI) has taken every reasonable precaution to minimise risk of this email or any attachments containing viruses or malware but the recipient should carry out its own virus and malware checks before opening the attachments. UKRI does not accept any liability for any losses or damages which the recipient may sustain due to presence of any viruses.
--
FABRIZIO
BERNARDI
Astronomer Project Manager e-mail: bernardi@... tel. +39 050 0984 174 Space
Dynamics Services S.r.l. Le
informazioni contenute in questo messaggio di posta
elettronica e relativi allegati sono riservate e
confidenziali e ne è vietata la diffusione in
qualunque modo eseguita. Qualora Lei non fosse la
persona a cui il presente messaggio è destinato, La
invitiamo ad eliminarlo e a darcene gentile
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necessità La preghiamo di contattare il numero
+390500984170. |
Re: JPL Horizons down?
Oh yes, what a horrible situation ... best hopes for the people there.
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Am Thu, 9 Jan 2025 11:33:38 -0000 |
Re: JPL Horizons down?
JPL is inside the evacuation zone for the horrific Eaton fire. While the currently available maps do not show it being inside the burned region, I would not be surprised if there were no public utilities like electric going to the campus right now - explaining why the entire JPL website seems to be down.
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It’s certain a lot of our colleagues at JPL have lost everything. It’s very sad, and I’m sure we’ll see some crowdsourcing to help them out appear over the next few days. - Laura Professor of Physics & Astronomy, CSUSB On Jan 9, 2025, at 3:30?AM, Shanklin, Jonathan D. via groups.io <jdsh@...> wrote: |
Re: JPL Horizons down?
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From: [email protected] <[email protected]> on behalf of Richard Miles via groups.io <rmiles.btee@...>
Sent: Thursday, January 9, 2025 11:33:38 AM To: [email protected] <[email protected]> Subject: Re: [comets-ml] JPL Horizons down? ?
External email: if the sender or content looks suspicious, please click the Report Message icon, or forward it to report-phishing
It went down about 12 hours ago. Richard Miles -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Thomas Lehmann via groups.io Sent: 09 January 2025 11:28 To: [email protected] Subject: [comets-ml] JPL Horizons down? Hi all, I am currently unable to get anything from JPL Horizons using python3-astroquery and it looks like the JPL Solar System Dynamics web pages are not accessible either (e.g. . Anyone else having the same issues? Thomas |
Re: JPL Horizons down?
It went down about 12 hours ago.
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Richard Miles -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Thomas Lehmann via groups.io Sent: 09 January 2025 11:28 To: [email protected] Subject: [comets-ml] JPL Horizons down? Hi all, I am currently unable to get anything from JPL Horizons using python3-astroquery and it looks like the JPL Solar System Dynamics web pages are not accessible either (e.g. ). Anyone else having the same issues? Thomas |
Re: JPL Horizons down?
Given JPL is in Pasadena I believe and with the fires there I expect there
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maybe some disruption -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Thomas Lehmann via groups.io Sent: 09 January 2025 11:28 To: [email protected] Subject: [comets-ml] JPL Horizons down? Hi all, I am currently unable to get anything from JPL Horizons using python3-astroquery and it looks like the JPL Solar System Dynamics web pages are not accessible either (e.g. ). Anyone else having the same issues? Thomas |
Re: JPL Horizons down?
Maybe it's the fire.
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-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Thomas Lehmann via groups.io Sent: Thursday, January 9, 2025 11:28 AM To: [email protected] Subject: [comets-ml] JPL Horizons down? Hi all, I am currently unable to get anything from JPL Horizons using python3-astroquery and it looks like the JPL Solar System Dynamics web pages are not accessible either (e.g. ). Anyone else having the same issues? Thomas This email and any attachments are intended solely for the use of the named recipients. If you are not the intended recipient you must not use, disclose, copy or distribute this email or any of its attachments and should notify the sender immediately and delete this email from your system. UK Research and Innovation (UKRI) has taken every reasonable precaution to minimise risk of this email or any attachments containing viruses or malware but the recipient should carry out its own virus and malware checks before opening the attachments. UKRI does not accept any liability for any losses or damages which the recipient may sustain due to presence of any viruses. |
Re: C/2024 G3 in outburst? - Jan 2.76, 2025 UT
开云体育
Dear all,
This morning I made a successful naked eye observation of comet C/2024 G3 from a very dark site in Lages, SC, Brazil.
2025 Jan. 04.32 UT: m = 1.9, DC = 9, tail = 0.5° in PA 255°.
Comet altitude: 4°. Sun altitude: -11°.
Comparison stars from BSC, atmospheric extinction from ICQ Table Ia. "Average" applied.
Best regards,
Lucas Camargo da Silva
NEOA-JBS
Florianópolis, SC, Brazil
De: [email protected] <[email protected]> em nome de Michael Mattiazzo via groups.io <mmatti@...>
Enviado: sexta-feira, 3 de janeiro de 2025 21:11 Para: [email protected] <[email protected]> Assunto: Re: [comets-ml] C/2024 G3 in outburst? - Jan 2.76, 2025 UT ?
Folks, ? I concur with Alexandre’s obs that the comet is in outburst (1.5 to 2 mag amplitude) as reported by T. Lovejoy. C/2024 G3 ATLAS on 2025 January 3 at 18:10UT. Location Swan Hill An estimate using 8x40mm binoculars was m1=2.0 with a strongly condensed 3' coma and 15' tail in PA250. Magnitude corrected for atmospheric extinction using the average table. In 15x70mm binoculars, a prominent dark lane or nuclear shadow is visible, indicating a recent outburst has occurred. Comet altitude 6 degrees. Sun altitude -12 degrees Clear conditions. Barely detectable with the naked eye. Comparisons: Mercury (-0.4), Theta Oph (3.2), 3 Sgr (4.6) Comet was still visible when Sun -8 degrees below horizon. Images attached. This reminds me of C/2000 WM1 LINEAR, here are my recollections of it:
? Cheers, Michael (Swan Hill, Australia) 35S 143E ? From: [email protected] <[email protected]>
On Behalf Of Alexandre Amorim via groups.io
Sent: Friday, 3 January 2025 10:38 PM To: [email protected] Subject: Re: [comets-ml] C/2024 G3 in outburst? - Jan 2.76, 2025 UT ? Dear friends ? Follow my observation: magnitude 2.0 (extinction applied) Using 10x50 B ? Comet's altitude 6 deg Sun's altitude -9 deg ? Comet visible through 6x30 finderscope until altitude 11 deg, Sun at -5 deg. ? Comet visible through 90mm f/10 refractor (eyep. 25mm) until 12 deg, Sun at -4 deg. ? A single photo is available here: ? with regards ? A. Amorim (Florianopolis/SC, Brazil) |
Re: C/2024 G3 in outburst? - Jan 2.76, 2025 UT
开云体育Folks, ? I concur with Alexandre’s obs that the comet is in outburst (1.5 to 2 mag amplitude) as reported by T. Lovejoy. C/2024 G3 ATLAS on 2025 January 3 at 18:10UT. Location Swan Hill An estimate using 8x40mm binoculars was m1=2.0 with a strongly condensed 3' coma and 15' tail in PA250. Magnitude corrected for atmospheric extinction using the average table. In 15x70mm binoculars, a prominent dark lane or nuclear shadow is visible, indicating a recent outburst has occurred. Comet altitude 6 degrees. Sun altitude -12 degrees Clear conditions. Barely detectable with the naked eye. Comparisons: Mercury (-0.4), Theta Oph (3.2), 3 Sgr (4.6) Comet was still visible when Sun -8 degrees below horizon. Images attached. This reminds me of C/2000 WM1 LINEAR, here are my recollections of it: ? Cheers, Michael (Swan Hill, Australia) 35S 143E ? From: [email protected] <[email protected]> On Behalf Of Alexandre Amorim via groups.io
Sent: Friday, 3 January 2025 10:38 PM To: [email protected] Subject: Re: [comets-ml] C/2024 G3 in outburst? - Jan 2.76, 2025 UT ? Dear friends ? Follow my observation: magnitude 2.0 (extinction applied) Using 10x50 B ? Comet's altitude 6 deg Sun's altitude -9 deg ? Comet visible through 6x30 finderscope until altitude 11 deg, Sun at -5 deg. ? Comet visible through 90mm f/10 refractor (eyep. 25mm) until 12 deg, Sun at -4 deg. ? A single photo is available here: ? with regards ? A. Amorim (Florianopolis/SC, Brazil) |
NEW OBSERVATIONS: Observatory Gr?mme MPC: M09 - Results 2024 and Observations 2025-01-02
开云体育
Dear Co-Observers,
?
First of all: My best wishes for 2025, and hopefully some interesting / bright comets and discussions on the mailing list!?
Personally, 2024 was for Observatory Gr?mme not a good year. Lots of bad weather.?
But the total amount of comet observations in 2024 is 768, still high according to 2023 (822). 67 different comets were observed.
This is the result of using an automated system (C.A.N.A.O.P: Comet And Neo Automated Observation Program). This has shortened?the loss of time in between 2 observations.?
Hope to do better in 2025 and to be able to do more follow-up observations.?
And so i had a good start yesterdag evening, the second of January. Some comets could be observed during the first hours of the evening.
Clear Skies!?
Images on the website!
?
*** Equipment ***
0.30-m f/4 Newtonian reflector + CCD FLI Microline KAF3200ME / 10Micron GM2000HPS
Detailed information about equipment and scientific information inside the image.
Best Regards,
Mr. Pieter-Jan Dekelver
Oudsbergen, Belgium
Observatory Gr?mme - MPC: D09 – M09 |
Re: C/2024 G3 in outburst? - Jan 2.76, 2025 UT
Dear friends
?
Follow my observation:
magnitude 2.0 (extinction applied)
Using 10x50 B
?
Comet's altitude 6 deg
Sun's altitude -9 deg
?
Comet visible through 6x30 finderscope until altitude 11 deg, Sun at -5 deg.
?
Comet visible through 90mm f/10 refractor (eyep. 25mm) until 12 deg, Sun at -4 deg.
?
A single photo is available here:
?
with regards
?
A. Amorim (Florianopolis/SC, Brazil) |
Re: [29P-ml] Is anyone currently imaging 29P
开云体育Doug that is amazing! ? We obtained 2.0-m multi-filter images from LCO just 4 minutes before the strong outburst kicked off. Here are our Cousins-R measurements from the r-filter images obtained by the Comet Chasers group. The (G-R) colour difference is +0.20. ? ? 0029P???????? C2025 01 02.41593 10 10 50.22 +08 50 53.8????????? 16.63R????? F65 5.61" (5.72") r 120s Malaric 0029P???????? C2025 01 02.41738 10 10 50.18 +08 50 53.8????????? 16.68R????? F65?????????????? poor seeing 4.6" fwhm 0029P???????? C2025 01 02.42052 10 10 50.16 +08 50 53.9????????? 16.65R????? F65 5.61" (5.72") r 90s Souza 0029P???????? C2025 01 02.42406 10 10 50.11 +08 50 53.9????????? 16.66R????? F65 5.61" (5.72") r 90s Eleftheriou 0029P???????? C2025 01 02.42518 10 10 50.10 +08 50 53.8????????? 16.62R????? F65 ? From your data we can see that the eruption started at 2025 01 02.428 ± 0.001 ? 2460677.92298?? 16.839 G? C?? 41.78?? 23.417??? Gaia2?? 29P/Schwassmann-Wachmann 2460677.92654?? 16.823 G? C?? 45.74?? 23.428??? Gaia2?? 29P/Schwassmann-Wachmann 2460677.93010?? 16.744 G? C?? 47.40?? 23.434??? Gaia2?? 29P/Schwassmann-Wachmann 2460677.93365?? 16.692 G? C?? 52.52?? 23.417??? Gaia2?? 29P/Schwassmann-Wachmann 2460677.93721?? 16.603 G? C?? 57.56?? 23.399??? Gaia2?? 29P/Schwassmann-Wachmann 2460677.94076?? 16.393 G? C?? 64.04?? 23.454??? Gaia2?? 29P/Schwassmann-Wachmann 2460677.94432?? 16.229 G? C?? 70.49?? 23.453??? Gaia2?? 29P/Schwassmann-Wachmann ? This is only the 3rd strong outburst this apparition so to catch it is incredibly lucky and to have 2.0-m data just a few minutes ahead of the eruption is also a first! This is a dramatic demonstration of the typical characteristic of 29P in that we see a sudden cryovolcanic eruption begin and minutes before all was quiet. ? Richard Miles BAA ? ? ? From: [email protected] <[email protected]> On Behalf Of Doug Durig via groups.io
Sent: 03 January 2025 05:44 To: [email protected] Subject: Re: [comets-ml] [29P-ml] Is anyone currently imaging 29P ? I caught it going into outburst last night. This is the data from my 16 inch RC. I also have data from my RASAs to look at yet. This?is what I got stacking?10x30sec exposures, so at about 5 min increments. It pooped quickly! ? OBSERVER: ? ?D. T. Durig ? On Thu, Jan 2, 2025 at 11:26?PM Observatory Gr?mme via <observatorygromme=[email protected]> wrote:
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