[Aavso-photometry] Change in R-I index V5558 Sgr

[Peter Nelson]

Not only has V5558 Sgr brightened in V (8.29 18th Sep to 7.33 25th Sep), but
the R-I index has increased from 0.03 to 0.38.  Interestingly, B-V has
remained constant over this time.

 

 

V5558 SGR 2454368.96596 SEP 25.4660 6.13
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&name=V5558%20SGR&visual
unvalidated=on&v=on&Vis&unfiltered=on>  I   O NLX 8.7 070716 0.03 Y Comp
I=7.592

V5558 SGR 2454368.96565 SEP 25.4657 6.51
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&lastdays=45&name=V5558%
20SGR&visualunvalidated=on&v=on&Vis&unfiltered=on>  R  O NLX 8.7 070716 0.03
Y Comp R=8.098 

V5558 SGR 2454368.96503 SEP 25.4650 8.20
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&name=V5558%20SGR&visual
unvalidated=on&v=on&Vis&unfiltered=on>  B  O NLX 8.7 070716 0.03 Y Comp
B=9.907 

V5558 SGR 2454368.96438 SEP 25.4644 7.33
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&lastdays=45&name=V5558%
20SGR&visualunvalidated=on&v=on&Vis&unfiltered=on>  V  O NLX 8.7 070716 0.01
Y Comp V=8.726

 

B-V = 0.87, R-I = 0.38

 

V5558 SGR 2454361.9972 SEP 18.4972   6.95
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&lastdays=45&name=V5558%
20SGR&visualunvalidated=on&v=on&Vis&unfiltered=on>     I O NLX 8.7 070615
0.1 Y Comp I=7.592 

V5558 SGR 2454361.99666 SEP 18.4967 6.98
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&name=V5558%20SGR&visual
unvalidated=on&v=on&Vis&unfiltered=on>    R O NLX 8.7 070615 0.03 Y Comp
R=8.098 

V5558 SGR 2454361.99581 SEP 18.4958 9.16
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&lastdays=45&name=V5558%
20SGR&visualunvalidated=on&v=on&Vis&unfiltered=on>    B O NLX 8.7 070615
0.05 Y Comp B=9.907 

V5558 SGR 2454361.99425 SEP 18.4942 8.29
<http://www.aavso.org/cgi-bin/newlcg.pl?&obscode=NLX&name=V5558%20SGR&visual
unvalidated=on&v=on&Vis&unfiltered=on>    V O NLX 8.7 070615 0.13 Y Comp
V=8.726

 

B-V = 0.87, R-I = 0.03

 

 

Regards

Peter Nelson