[vsnet-alert 1565] V893 Sco finally identified!?

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

   Haseda's object = V893 Sco

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Forwarded message from Samus, the GCVS editor:

From samus@sai.msu.su Mon Mar 23 21:07 JST 1998
Date: Mon, 23 Mar 1998 15:05:28 +0300
From: "Nikolai N. Samus" <samus@sai.msu.su>
Subject: V893 Sco

Dear Dr. Kato,

After long and unsuccessful attempts to find the Satyvoldiev's
configuration around V893 Sco, Dr. Kazarovets looked at a plate
without any eyepiece and found a similar pattern at a larger scale.
Her suggested identification for the five stars in the field is:

GSC 6805.1134 (star "a")          16 15 52.23 -28 35 45.8 (2000.0)
GSC 6805.277 (bright star below)  16 15 51.85 -28 44 14.4
GSC 6805.1202 (bright star above) 16 16 03.84 -28 26 25.0
GSC 6805.1047 (star "b")          16 16 40.70 -28 38 25.2
GSC 6805.1029 (star "c")          16 16 25.68 -28 34 11.8

However incredible, I believe she is right!

Best regards
Nikolai

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   According to Prof. Samus, the light curve of V893 Sco = SVS 1772
is given in Perem. Zvezdy Prilozheniye, 1982, Vol. 4, No. 20, p. 127;
the curve itself is in p. 143).  The light curve shows the object
usually at mag 13.5 (Satyvoldiev's scale), with infrequent (typically
once in one season) "outburst"-like brightenings reaching mag 10.5-11.
"Outbursts" usually lasted ~10 days.  In addition to these brightenings,
the a few fadings down to fainter than 15.5 were recorded.

Regards,
Taichi Kato

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