[vsnet-alert 28155] NSV 1440 outburst
The AM CVn-type object NSV 1440 is in a bright outburst. The last bright outburst was in 2021. NSV 1440 260404.433 132 Regards, Rod. -- Rod Stubbings Tetoora Road Observatory Victoria, Australia Honorary Associate member Astronomical Society of Australia Telescope: "Infinity" 22" f/3.8 stubbo@dcsi.net.au http://rodstubbingsobservatory.wordpress.com/
The peak magnitude of 13.2 suggests this is a superoutburst. Because the outburst profile of NSV 1440 shows large diversity, continuous time-resolved observations are encouraged. On 2026/04/05 8:06, Rod Stubbings via vsnet-alert wrote:
The AM CVn-type object NSV 1440 is in a bright outburst. The last bright outburst was in 2021.
NSV 1440 260404.433 132
Regards, Rod.
NSV 1440 has further brightened tonight. NSV 1440 260405.390 127 Regards, Rod. On 5/04/2026 9:25 am, Keisuke Isogai via vsnet-alert wrote:
The peak magnitude of 13.2 suggests this is a superoutburst. Because the outburst profile of NSV 1440 shows large diversity, continuous time- resolved observations are encouraged.
On 2026/04/05 8:06, Rod Stubbings via vsnet-alert wrote:
The AM CVn-type object NSV 1440 is in a bright outburst. The last bright outburst was in 2021.
NSV 1440 260404.433 132
Regards, Rod.
I will add this target from tonight onwards to my observing program. Josch -----Originele bericht----- Van: Rod <vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp> naar: Keisuke <isogai@kusastro.kyoto-u.ac.jp>; vsnet-alert <vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp>; vsnet-outburst <vsnet-outburst@ooruri.kusastro.kyoto-u.ac.jp> datum: zondag 5 april 2026 12:14 CEST Onderwerp: [vsnet-alert 28157] Re: NSV 1440 outburst NSV 1440 has further brightened tonight. NSV 1440 260405.390 127 Regards, Rod. On 5/04/2026 9:25 am, Keisuke Isogai via vsnet-alert wrote:
The peak magnitude of 13.2 suggests this is a superoutburst. Because the outburst profile of NSV 1440 shows large diversity, continuous time- resolved observations are encouraged.
On 2026/04/05 8:06, Rod Stubbings via vsnet-alert wrote:
The AM CVn-type object NSV 1440 is in a bright outburst. The last bright outburst was in 2021.
NSV 1440 260404.433 132
Regards, Rod.
I observed NSV 1440 remotely using iTelescope.Net T72 (0.51-m f/6.8 reflector + CCD) in Chile: NSV 1440 20260407.01293 13.112V RFD 0.018 NSV 1440 20260407.01192 13.116V RFD 0.027 NSV 1440 20260407.01090 13.101V RFD 0.008 NSV 1440 20260407.00988 13.102V RFD 0.025 NSV 1440 20260407.00886 13.104V RFD 0.006 NSV 1440 20260407.00786 13.110V RFD 0.029 NSV 1440 20260407.00685 13.108V RFD 0.014 NSV 1440 20260407.00583 13.101V RFD 0.015 NSV 1440 20260407.00482 13.115V RFD 0.021 NSV 1440 20260407.00380 13.121V RFD 0.026 NSV 1440 20260407.00279 13.135V RFD 0.007 NSV 1440 20260407.00177 13.121V RFD 0.017 NSV 1440 20260407.00075 13.131V RFD 0.018 NSV 1440 20260406.99974 13.110V RFD 0.017 NSV 1440 20260406.99873 13.114V RFD 0.014 NSV 1440 20260406.99772 13.117V RFD 0.019 NSV 1440 20260406.99670 13.117V RFD 0.019 NSV 1440 20260406.99569 13.090V RFD 0.008 NSV 1440 20260406.99467 13.109V RFD 0.017 NSV 1440 20260406.99365 13.116V RFD 0.018 NSV 1440 20260406.99263 13.098V RFD 0.017 NSV 1440 20260406.99161 13.089V RFD 0.010 NSV 1440 20260406.99059 13.112V RFD 0.015 NSV 1440 20260406.98959 13.088V RFD 0.017 NSV 1440 20260406.98858 13.103V RFD 0.013 NSV 1440 20260406.98756 13.111V RFD 0.022 NSV 1440 20260406.98655 13.106V RFD 0.016 NSV 1440 20260406.98554 13.107V RFD 0.014 NSV 1440 20260406.98452 13.108V RFD 0.022 NSV 1440 20260406.98350 13.079V RFD 0.010 NSV 1440 20260406.98250 13.096V RFD 0.010 NSV 1440 20260406.98147 13.096V RFD 0.007 NSV 1440 20260406.98045 13.094V RFD 0.012 NSV 1440 20260406.97929 13.109V RFD 0.015 F. D. Romanov (AAVSO).
NSV 1440: double superoutburst According to the AAVSO data, NSV 1440 is showing a double superoutburst. It is expected that the object will show multiple rebrightenings over three months. Cf. figure1 in https://arxiv.org/pdf/1901.11425
participants (4)
-
Filipp Romanov -
hambsch＠telenet.be -
Keisuke Isogai -
Rod Stubbings