CSS J091017.4-200812: AM CVn-type superoutburst
Berto Monard has reported observations. Based on
a single-night run, superhumps with a period of
0.0205(1) d and amplitude of 0.07 mag were detected.
Gaia23atn
Gaia23atn AT2023cgz 2023-02-17 23:48:25 343.95057 46.56566 14.67 unknown 2023-02-19 16:26:35 Transient on very faint PanSTARRS source
http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia23atn/
Not seen in outburst in the past ATLAS and ZTF data.
ASASSN-23ax: new SU UMa-type dwarf nova
Josch Hambsch has reported observations.
Superhumps with a period of 0.0545(2) d (allowing aliases)
were detected (0.2 mag).
ASASSN-23af: oscillations during long rebrightening
Josch Hambsch has reported further observations.
At least three peaks (reaching 15 mag) have been
detected during the long rebrightening.
Yamamoto-san's object = CX137 = CXO GBSJ175553.2-281633 = OGLE-BLG-ELL-12042
Itoh-san's refined astrometry:
RA 17 55 53.262
DEC -28 16 33.96
The location agrees with that of CX137. This is an outburst
from a 0.4-d binary with prominent ellipsoidal variations.
CX137:
175553.262 -281633.96 (2000.0) Gaia_EDR3_4062657359687091584 plx=1.130(0.049) dismod=9.7 pmra=1.164(0.052) pmdec=-6.889(0.035) G=16.223 BP=16.755 RP=15.373
Yamamoto-san reported that it had brightened further in
the …
[View More]ASAS-SN data.
https://asas-sn.osu.edu/sky-patrol/coordinate/b4aa63c1-fb92-40c0-96d4-2989b…
Itoh-san obtained a short time-resolved photometric run
(around 12.7 mag). This object may be eclipsing and further
observations are recommended.
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