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S Aps fading?

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Matthew Templeton
S Aps fading?

Hello everyone,

For our southern observers, S Aps (15:09:24.53, -72:03:45.2) has been reported in decline by observers on the Variable Stars South mailing list.  It hasn't exhibited a major fade in several years, so it will be interesting to see if it goes below 12th again.  Please keep watching if you can see that far south!

Clear skies,


TCB168's picture
S Aps

I took BVRI images of this.

It was V = 10.18 on 19/5 and

V = 10.33 on 25/5

It is certainly fading but not too far yet.




TCB168's picture
S Aps

S Aps continues to fade. On 17th July, I measured it at mag V= 14.3 and B = 16.0.

There are visual measurements down to about this level in the past so it may be near the bottom of this current decline.



ocn's picture
S Aps Major Fade

Hi All

I have this RCB down to 15.46V by July 24.482. The minimum, in VSX, for this star is 15.2V.

Keep watching !



pukemaru's picture

My last recorded positive observation was 13.6V on 16 Jul.
I have recorded it as <141 since then.
Going from LCG, this is possibly its deepest fade in over 80 years, although the 2000 minimum was pretty low too. I suspect part of that is due to observers having access to bigger instruments today. Someone has recorded this star at <179. 
I will continue to watch for recovery.


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