[vsnet-alert 11633] TT Ari fades again

[Ivan Andronov]

TT Ari fades again

The observations were obtained at the
Tzec Maun Observatory (New Mexico, USA)
telescope: Ritchey-Chretien 16" + STL-6303 camera
Filters: VR

They show that TT Ari, after a possible start to incline, now fades again:

T (JD)		                	TT Ari (V) Ref1 (N) Ref2 (k)Ref3 (e) Ref4 (L)
2455138.7997932406	16.327	14.794	14.449	11.964	13.203
2455138.8079403010	16.046	14.824	14.443	11.950	13.193
2455138.8130524303	15.717	14.713	14.542	11.954	13.201
2455138.8181571411	15.614	14.773	14.501	11.954	13.182
2455138.8232683563	16.568	14.945	14.409	11.917	13.139
2455138.8283772222	16.528	14.837	14.477	11.931	13.165
2455138.8334801272	15.528	14.830	14.451	11.945	13.184



T (JD)                               TT Ari (R) Ref1 (N) Ref2 (k) Ref3 (e) Ref4
(L)
2455138.8104497106	15.245	14.265	13.792	11.444	12.689
2455138.8155524307	15.418	14.204	13.772	11.490	12.725
2455138.8206611113	15.875	14.196	13.802	11.481	12.712
2455138.8257707059	15.688	14.249	13.827	11.461	12.653
2455138.8308786689	15.516	14.232	13.744	11.504	12.710
2455138.8359795832	15.121	14.234	13.775	11.482	12.699

The comparison stars are according to Goetz (IBVS 2823).

Further photometric and spectroscopic monitoring is highly encouraged.


Natalia Virnina
Department "High and Applied Mathematics"
Odessa National Maritime University
Odessa, Ukraine

Institute of Mathematics, Economy and Mechanics
Odessa National Maritime University


VSNET observer's code VIR
AAVSO code VNA