Advances in Astronomy / 2010 / Article / Fig 11

Research Article

The Role of Ground-Based Robotic Observatories in Satellite Projects

Figure 11

An example of appearance of INTEGRAL sources in optical light as variable objects. IGR J12349-6434 RT Cru (hard X-ray symbiotic star) in optical light on Leiden Franklin Adams Plates. The object exhibits violent (amplitude 3 magnitudes) optical brightness variations.