The Astronomer’s Telegram is a system for reporting and commenting on new astronomical observations. The latest reports are listed here.

ATel 17962: Detection of superhumps in the ER UMa-type dwarf nova Gaia24aeg

12 Aug 2026 at 8:16pm
Gaia24aeg/AT 2024re/ASASSN-18hr is an ER UMa-type dwarf nova characterized by frequent superoutbursts, with a typical superoutburst recurrence time of 55-65 days. ... Read more...

ATel 17960: Liverpool Telescope spectroscopic observation of the Fe II-type n...

12 Aug 2026 at 8:00am
The 11.2 mag optical transient TCP J05210763+2338194 (Nova Tau 2026) was discovered using the New Milky Way (NMW) - TexasTech survey (Rokinon 135-mm telephoto lenses + QHY600PH-M CMOS camera) on 2026 Aug 06.4109 UTC and reported via the CBAT Transient Objects Confirmation Page: http://www.cbat.ep... Read more...

ATel 17958: MAXI/GSC detection of an X-ray outburst from GK Per

11 Aug 2026 at 11:46pm
The MAXI/GSC nova alert system triggered on an X-ray brightening from a position consistent with the white dwarf binary GK Per (intermediate polar and dwarf nova) on 2026 August 9 (MJD 61261) 08:23 UT. ... Read more...

ATel 17953: Spectroscopic Classifications of Optical Transients with the Lick...

10 Aug 2026 at 2:27am
We report the following classifications of optical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope. The targets were supplied by Pan-STARRS and GOTO. ... Read more...

ATel 17951: Detection of Superhumps during a Superoutburst in Gaia20ffw

9 Aug 2026 at 8:57am
We report the detection of superhumps during a superoutburst in the cataclysmic variable Gaia20ffw/AT2020znz/ASASSN-18jq, which was detected by our Outbursts Alerting System. ... Read more...

ATel 17950: Spectroscopic classification and BVRI photometry of TCP J05210763...

8 Aug 2026 at 8:28am
The transient TCP J05210763+2338194 was discovered on 2026 Aug 06.4109 UT at unfiltered 11.2 mag (calibrated against V magnitudes of Tycho-2 stars in the field) by the NMW-TexasTech survey. ... Read more...

ATel 17947: Photometric follow up observations of the possible Galactic Nova ...

7 Aug 2026 at 4:55pm
We report photometric follow-up of the possible Galactic nova TCP J05210763+2338194, which was discovered by the NMW-TexasTech survey on 2026-08-06.4109 UT at an unfiltered magnitude of 11.2. ... Read more...

ATel 17945: PRIME discovery and IRTF confirmation of a bright nova PRIME26ahy...

6 Aug 2026 at 7:07pm
We report the discovery and spectroscopic classification of a very bright NIR transient during the Galactic bulge survey carried out by the PRime-focus Infrared Microlensing Experiment (PRIME). ... Read more...

ATel 17944: Photometric Follow-up Observations of a Reddened Galactic Nova AT...

6 Aug 2026 at 10:02am
The BHTOM.space network coordinated a campaign to monitor the AT 2026rdg (=ZTF26abemjfk, =Nova Aql 2026, =V2104 Aql) discovered in the constellation Aquila on July 1, 2026, by M. ... Read more...

ATel 17941: M31N 2026-08a is the third reported eruption of the recurrent nov...

4 Aug 2026 at 11:27pm
F. Castellani et al. reported the discovery of a probable nova in M31. The nova, designated as AT 2026wvv, was detected on a co-added 3600-s unfiltered CCD image taken with a 0.40-m f/7 Dall-Kirkham telescope at Monte Baldo Observatory, Ferrara di Monte Baldo, Verona, Italy. ... Read more...


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