Hi all,
I took this NEO (2025 FL14) on the night between May 24th and 25th (21h10m42s UT of the 24th) from the Frasso Sabino observatory. They were 40x90s with a 368mm telescope at F/6.8 (in the image the scale is 1".24/pixel north at the top and east at the left, 21'.6x32'.3 the framed field).
The fwhm of the nearby stars is on average 4".08 with an error of +-4% (the other stars were between 3".91 and 4".25) and the NEO was 4".64 so with a difference of about 15%.
There is little difference and this makes me doubt. However, I also detected C/2024 PN7 with a fwhm of about 15% greater than the stars, which was then confirmed to be a comet.
I hope someone can observe it to have a confirmation or denial. Consider that the mag. in theory is around 20.6, which I detected instead of 19.7 as a whole (if I consider only the part of the "nucleus" I have values ??of 20.3 and 20.6 in the 2 positions I sent).
Furthermore, if you check the orbit, it is of the cometary type (Tisserand about 2.9) but this does not mean that it is. Furthermore, the perihelion is still a few days away and its elongation is good.
I sent the MPC a message regarding this object and its possibility of being a comet.
I attach the image of the object.
That large bright spot curved toward the upper right corner is probably due to Arcturus which was located just over 4° from the center of my field.
Regards,
Roberto Haver
157 Frasso Sabino

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Dear Roberto,

Thank you for the information.

****

In an attempt to detect possible cometary activity, I have observed?2025 FL14?with the 1.0 m Simeiz telescope on 15 May.

For 36 minutes of total exposure I saw 2025 FL14 as just a definitely stellar object with a predicted mag of about 20.6V (the image in the attachment).

I think the wider FWHM of the object in your images may be due to the motion shift of the 2025 FL14. A higher magnitude would be more intriguing, but rotational variability or estimation error could still be the cause.

Nevertheless, I will try to carefully observe 2025 FL14 again in June, close to its perihelion.

Best regards,
Artyom.

Dear Artyom,
Of course my higher magnitude detected (only about 0.8/0.9mag.), as you say, could easily be due to rotation or low SNR.
For the fwhm it is not possible that it is due to motion since I have added it to the real motion of the object via Astrometrica.
However I hope that someone else will try it in this period since it is close to perihelion.
Regards,
Roberto Haver

On Mon, 26 May 2025 14:17:55 +0300
"Artyom Novichonok via groups.io" <artnovich@...> wrote:

Dear Roberto,
Thank you for the information.
****
In an attempt to detect possible cometary activity, I have observed 2025 FL14 with the 1.0 m Simeiz telescope on 15 May.
For 36 minutes of total exposure I saw 2025 FL14 as just a definitely stellar object with a predicted mag of about 20.6V (the image in the attachment).
I think the wider FWHM of the object in your images may be due to the motion shift of the 2025 FL14. A higher magnitude would be more intriguing, but rotational variability or estimation error could still be the cause.
Nevertheless, I will try to carefully observe 2025 FL14 again in June, close to its perihelion.
Best regards,
Artyom.