Hi Andrew,

Great to see someone keeping a regular watch on these southern RCB stars!

CC to the vsnet-rcb and vsnet-alert groups for info, but I cannot remember if they accept the light curve attachments :)

Tks and regards

Peter Williams

Heathcote NSW

From: variablestarssouth@googlegroups.com [mailto:variablestarssouth@googlegroups.com] On Behalf Of Andrew Pearce Sent: Monday, 5 June 2023 11:15 AM To: Variable Stars South VariableStarsSouth@googlegroups.com Subject: [VSS] RCB Star IO Nor is undergoing a decline

Hi All

Another little observed RCB star, IO Nor, is undergoing a decline as per the attached light curve.

Regards

Andrew

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From: variablestarssouth@googlegroups.com [mailto:variablestarssouth@googlegroups.com] On Behalf Of Andrew Pearce Sent: Monday, 5 June 2023 10:45 AM To: Variable Stars South VariableStarsSouth@googlegroups.com Subject: [VSS] RCB star V653 Sco is undergoing a decline

Hi All

The little observed RCB star, V653 Sco, is undergoing a decline as can be seen from the attached light curve.

Years ago, professional astronomers used to be very interested in RCB fades. That doesn't seem to be the case anymore at least that I'm aware of.

Regards

Andrew

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