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 18074: Spectroscopic Classification of Astrophysical Transients with the Lick Shane Telescope
2026-09-23 00:08
The Astronomer's Telegram: Nova
We report the classifications of astrophysical transients from spectroscopic observations with the Kast spectrograph on the Shane telescope obtained on 2026 September 21 UT. ...
ATel 18073: Swift Observations of V1452 Tau - Emission from Beryllium (7Be II) Revealed ?
2026-09-22 23:38
The Astronomer's Telegram: Nova
The galactic nova V1452 Tau (TCP J05210763+2338194) was discovered on 2026-Aug-06 (ATel# 17947; day 0) and subsequently spectroscopically classified as FeII-type nova (ATel# 17950). ...
ATel 18068: A new superoutburst of the period-gap SU UMa-type dwarf nova Gaia22cax
2026-09-21 23:02
The Astronomer's Telegram: Variables
Gaia22cax/CSS101127:000130+050624/AT 2020qvd is an SU UMa-type dwarf nova located in the period gap. Kato et al. (2017; doi: 10.1093/pasj/psx058) reported a superhump period of 0.09477(1)d during its 2016 superoutburst. ...
ATel 18059: Gaia20cnt: photometric observations of a new outburst
2026-09-19 07:45
The Astronomer's Telegram: Variables
The beginning of a new outburst of Gaia20cnt/ASASSN-14fc/AT 2020loj was detected during our monitoring of the object with a Unistellar eVscope (provided by Mike Simmons through the Astronomy for Equity program). ...
ATel 18058: Spectroscopic Classification of Astrophysical Transients with KCWI on the Keck II Telescope
2026-09-19 01:56
The Astronomer's Telegram: Nova
We report the classifications of astrophysical transients from spectroscopic observations with the Keck Cosmic Web Imager (KCWI) on the Keck II telescope obtained on 2026 September 16 UT. ...
ATel 18057: OAUNI photometry of SN 2026pel
2026-09-18 21:09
The Astronomer's Telegram: Nova
We report photometric observations of Type Ia-91T SN 2026pel (TNSTR-2026-2509), obtained with the OAUNI 51cm telescope (arXiv:1512.03104) at Huancayo Observatory, Peru. ...
ATel 18056: MGAB-V233: superhumps detected during the current superoutburst
2026-09-18 21:05
The Astronomer's Telegram: Variables
MGAB-V233 is a well-known ER UMa-type dwarf nova characterized by frequent superoutbursts and a short supercycle of approximately 70-90 days. Its superoutbursts typically last about 20-30 days. ...
ATel 18055: Independent Discovery of a Probable Nova in M31, AT 2026abyx
2026-09-18 20:43
The Astronomer's Telegram: Nova
We report the independent discovery of a probable nova found during our survey of the central region of M31. The object was discovered on a co-added 1170-s R-band CMOS frame taken on 2026 Sep. ...
ATel 18053: Continuing optical spectroscopic monitoring of V488 Sge (Nova Sge 2026) by the ARAS group
2026-09-17 14:29
The Astronomer's Telegram: Nova
We report continuing low (R ~ 900) grism through medium resolution (R=9000) optical (from around 3800 - 9000A) echelle spectroscopic observations of Nova Sge 2026 (ATel #18009). ...
ATel 18048: MDM/MIRAGE discovery of a pronounced infrared brightening in the luminous nova AT2026aabo in M31
2026-09-16 03:48
The Astronomer's Telegram: Nova
We report near-infrared (NIR) monitoring observations of the bright nova AT2026aabo (ATel #18027, #18029, Astronote 2026-268) conducted with the MDM-Infrared InGaAs Experiment (MIRAGE) camera on the 1.3m telescope at the MDM observatory. ...
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