The UGSU star OT J215818.5+241925 (PNV J21581852+2419246) is in outburst. The first detected since September 2018...
September 03.940 14.903CV
Open University COAST
regards,
Gary
PNV J21581852+2419246 (UGSU) https://www.aavso.org/vsx/index.php?view=detail.top&oid=270725
Bright since 2021 August 27.470 UT (orange mag. 14.5) according to ATLAS data (last non-detection on Aug. 25.399 UT; orange mag. 16.0 on September 4.46 UT).
Time-resolved photometry is encouraged.
Clear skies, Patrick ------------ References: Asteroid Terrestrial-impact Last Alert System (ATLAS): - Tonry et al., 2018PASP..130f4505T --------------------------------------------- Gary Poyner wrote on Saturday, 4 September 2021 at 15:26:11 UTC:
The UGSU star OT J215818.5+241925 (PNV J21581852+2419246) is in outburst. The first detected since September 2018... September 03.940 14.903CV Open University COAST
regards, Gary
The problem is the close proximity of two bright stars. I got time series last night but it was windy from time to time and I got trailed stars, which made determining the brightness of the target very tricky. I have not yet found a good approach.
I will not continue observing this target.
Josch
Am 05.09.2021 um 11:18 schrieb Patrick Schmeer via groups.io:
PNV J21581852+2419246 = OT J215818.5+241925 (UGSU) https://www.aavso.org/vsx/index.php?view=detail.top&oid=270725
Upon my request Patrick Wiggins started taking images (again) of this dwarf nova. A rapid fading began on 2021 September 8. The star was still faint on Sept. 14, but on his CCD image taken on Sept. 15 Patrick noticed a rebrightening (also on Sept. 16). (no images were taken by him before Sept. 7 and from Sept. 10 to 13 UT)
Follow-up observations are encouraged.
Clear skies, Patrick ---------- Patrick Schmeer wrote on Sunday, 5 September 2021, at 09:18:20 UTC:
PNV J21581852+2419246 (UGSU) https://www.aavso.org/vsx/index.php?view=detail.top&oid=270725
Bright since 2021 August 27.470 UT (orange mag. 14.5) according to ATLAS data (last non-detection on Aug. 25.399 UT; orange mag. 16.0 on September 4.46 UT).
Time-resolved photometry is encouraged.
Clear skies, Patrick ------------ References: Asteroid Terrestrial-impact Last Alert System (ATLAS): - Tonry et al., 2018PASP..130f4505T
--------------------------------------------- Gary Poyner wrote on Saturday, 4 September 2021 at 15:26:11 UTC:
The UGSU star OT J215818.5+241925 (PNV J21581852+2419246) is in outburst. The first detected since September 2018... September 03.940 14.903CV Open University COAST
regards, Gary
vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
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Gary Poyner -
Josch Hambsch -
Patrick Schmeer