Hi
ASASSN seems to have picked up a bright transient in Musca (ASASSN 2026noc - https://www.wis-tns.org/object/2026noc.
I managed to take some images with my Seestar and on May 24.929 UT it was mag 8.02 TG and mag 8.35 TB.
I measured the location as RA 11h44m31.65s Dec -68d48m27.5s.
Further observations are encouraged.
Regards
Andrew
Hi All
Further observations made on May 25.428 UT. Mag 8.08 TG and 8.68 TB.
Slightly better conditions for astrometry tonight with revised position being location as RA 11h44m32.23s Dec -68d48m27.6s. There is a 19.0 G mag Gaia star (5234209543365939072) within 1.15" of the transient’s location.
Regards
Andrew
Unfortunately my observing site, ideally placed for observing Musca, has been clouded out and will will be for the next two nights.
Hi
I was able to use a larger telescope, the 0.35m reflector at Perth Observatory, and was able to acquire more accurate astrometry which has firmed up the progenitor star.
On May 25.484, the precise position measured was RA 11h44m32.19s Dec -68d48m26.8s. This puts it within 0.4" of the 19.0 G mag Gaia star (5234209543365939072).
Photometry as follows:
V = 8.02
R = 7.50
I = 7.18
Regards
Andrew
Hi Andrew, I have put it into my observing program.
Josch
Hello from Chile.
About 3 nights ago I took this image from Santiago de Chile and indeed next to a star of lower magnitude (TYC9226-3284-1) a large star appears. Could it be a NOVA?