The Astronomer’s Telegram News
The Astronomer’s Telegram is a system for reporting and commenting on new astronomical observations. The latest reports are listed here.
ATel 18138: Detection of optical coronal lines in V488 Sge (Nova Sge 2026)
2026-11-01 17:31
The Astronomer's Telegram: Nova
We report the detection of coronal transitions in low (R ~ 500-1200) grating spectra of V488 Sge (ATel#18009) spanning 3780 - 7510A obtained between 2026 Oct 20.8 and 30.81UT. ...
ATel 18135: XMM-Newton Observations during the supersoft phase of nova V488 Sge
2026-10-31 13:49
The Astronomer's Telegram: Nova
We report X-ray and ultraviolet observations of the recent nova V488 Sge obtained with the XMM-Newton satellite on October 21 2026, 57 days after optical maximum (ObsID: 0992191201). ...
ATel 18129: Nova V488 Sge Is Forming Dust
2026-10-29 22:21
The Astronomer's Telegram: Nova
Galactic classical nova V488 Sge was discovered on 2026 Aug 25 (CBET #5729, ATel #18008), and has been the subject of intensive AAVSO photometric coverage in the optical bands. ...
ATel 18127: Detection of dust in the nova V572 Velorum from SPHEREx observations
2026-10-29 16:46
The Astronomer's Telegram: Nova
V572 Velorum ( Nova Velorum 2025) was discovered by John Seach, and independently by Andrew Pearce, on 25 June 2025 (CBET 5574) at an apparent visual magnitude of 5.7. ...
ATel 18122: Fermi-LAT Detection of Galactic Nova V8056 Sgr
2026-10-28 21:03
The Astronomer's Telegram: Nova
Following the discovery of V8056 Sgr (TCP J17541876-2736362) on 2026 October 12, and its associated spectroscopic classification as a nova (CBET #5763), we have been monitoring the public Fermi-LAT data to search for GeV gamma-ray...
ATel 18121: V572 Vel: Change of 11-Minute Period within two months
2026-10-28 20:36
The Astronomer's Telegram: Nova
The nova V572 Vel was observed with XMM-Newton starting on UT 2025 Nov 28.3, 155.86 days after discovery (t_0 = 2025 Jun 25.440 UT; ATel#17603). We report here on a second observation obtained 55.6 days...
ATel 18120: Nova Tau 2026 (V1452 Tau) is likely undergoing dust formation
2026-10-27 13:43
The Astronomer's Telegram: Nova
The transient TCP J05210763+2338194 was discovered by the NMW-TexasTech survey on 2026-08-06.4109 UT at an unfiltered magnitude of 11.2 (ATel #17947), and designated Nova Tau 2026 (= V1452 Tau) in CBET #5723 following the spectroscopic...
ATel 18114: Betelgeuse 2026 dimming is stopping at magnitude 1.0 at mid October
2026-10-21 10:30
The Astronomer's Telegram: Variables
Betelgeuse is the closest red supergiant, and a first magnitude star, known since antiquity, lying in the constellation of Orion. In 1603 (ATel#16001) it has been classified as the brightest star of Orion by Johannes...
ATel 18113: Spectroscopic Classification of AT 2026abza with the Lick Shane Telescope
2026-10-19 17:18
The Astronomer's Telegram: Nova
We report the classification of AT2026abza from spectroscopic observations with the Kast spectrograph on the Shane telescope obtained on 2026 October 3 UT. ...
ATel 18111: MAXI/GSC detection of an X-ray flares from UX Ari on 2026-10-17 UT
2026-10-19 09:55
The Astronomer's Telegram: Variables
At 07:20 on 2026-10-17 UT, the MAXI/GSC nova alert system triggered on a source at a position consistent with that of the RS CVn star UX Ari. The light curve showed two peaks. ...
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