[AAVSO LightCurve, 1yr]
[AAVSO LightCurve, 5yr]
GCVS data:
Epoch 2000: ra = 314.724, dec = 44.258
Variability type: INT
Spectral type: B3-Ke(T)
GCVS remarks:
In the dark nebula, in the region of the North America nebula (NGC 7000). In 1969 - 70 (JD2440400 - 830) the outburst from 16.5m to 10.3m occured. Brightness maximum was observed at JD2440830 (spectrum - B3). Before the outburst the light changed in the range 15.5m - 16.5m, the spectral type was Ke with characteristic features of T Tau type stars [02698, 06415]. After the outburst the brightness began to weaken monotonouosly and in 1982 reached 13.1m B (the spectral type about G2 - G5 Ib). Strong Halpha emission appeared in 1971. There are also small rapid light fluctuations. Description of light variations [06504, 07115, 07754, 08996]. The star is associated with a luminous arc-shaped reflection nebula. This nebula with length of about 3' appeared in 1971 and its brightness is gradually decreasing simultaneously with the fading of the star.
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Chart status: OK