[vsnet-alert 20262] V2905 Sgr has become active again

[Berto Monard]

The symbiotic star V2905 Sgr has recently started a steep and now even
accelerating brightening as shown by the tabled V magnitudes vs JD

JD / V

2457611.32	12.44	CCD-V
2457621.40	12.34	CCD-V
2457627.36	12.36	CCD-V
2457636.28	12.27	CCD-V
2457639.33	12.14	CCD-V
2457653.22	11.53	CCD-V
2457660.23	11.40	CCD-V
2457666.22	11.32	CCD-V
2457667.23	11.32	CCD-V
2457671.22	11.37	CCD-V
2457675.23	11.43	CCD-V
2457682.26	11.34	CCD-V
2457685.24	11.18	CCD-V
2457687.32	11.06	CCD-V
2457688.25	11.02	CCD-V

The previous such episode was in 2009 with recorded peak brightness as tabled
below:

2455074.20	10.88	CCD-V
2455080.30	10.90	CCD-V
2455096.20	10.87	CCD-V
2455112.25	10.86	CCD-V
2455118.20	10.89	CCD-V
2455141.25	10.93	CCD-V

Note that the present eruption is much faster and the brightening amplitude
larger.
 
Further observations are planned and expected to be possible for another month.

Berto Monard / CBA Kleinkaroo 


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