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From: TerryMoselaol.com
Date: Mon, 13 Feb 2006 06:55:29 EST
Subject: NOVA OUTBURST
Hi all,
RECURRENT NOVA RS OPH OUTBURST
The recurrent nova RS Ophiuchi is currently in outburst according to an
International Astronomical Union email (CBET 399) (Monday 13th). Normally at
about mag 11, it is now mag 4.8 and was seen as bright as 4.5 yesterday morning
by Japanese observers.
Previous recorded outbursts were in 1898, 1933, 1958, 1967 and 1985. This
outburst makes it the Recurrent Nova with the most recorded outbursts. It is a
morning object at the moment, and is visible low in the southeast between
about 5.20 and 6.30 am to the northwest of the third magnitude star Nu Ophiuchi.
The R.A. is 17h 50m 13.3 s, Dec -06 deg 42m 29" (Epoch 2000.0). The
spectrum is OB+M2ep. Maximum range is 12m.5 - 4m.3.
Nearby comparison stars are: Xi Ser = 3.5; Omicron Ser = 4.3; Mu Oph = 4.6;
Zeta Oph = 4.6; Zeta Scu = 4.7; 59 Ser = 5.2; Tau Oph = 5.3; 60 Ser = 5.4.
I attach a chart showing the field with stars shown to mag 6, and magnitudes
shown to mag 5.5, to two decimal places but without the decimal point, e.g.
523 = mag 5.23.
I'll do a more detailed chart with fainter comparison stars later.
Good luck, and clear skies,
Terry Moseley
aol.com Date: Mon, 13 Feb 2006 06:55:29 EST Subject: NOVA OUTBURST Hi all, RECURRENT NOVA RS OPH OUTBURST The recurrent nova RS Ophiuchi is currently in outburst according to an International Astronomical Union email (CBET 399) (Monday 13th). Normally at about mag 11, it is now mag 4.8 and was seen as bright as 4.5 yesterday morning by Japanese observers. Previous recorded outbursts were in 1898, 1933, 1958, 1967 and 1985. This outburst makes it the Recurrent Nova with the most recorded outbursts. It is a morning object at the moment, and is visible low in the southeast between about 5.20 and 6.30 am to the northwest of the third magnitude star Nu Ophiuchi. The R.A. is 17h 50m 13.3 s, Dec -06 deg 42m 29" (Epoch 2000.0). The spectrum is OB+M2ep. Maximum range is 12m.5 - 4m.3. Nearby comparison stars are: Xi Ser = 3.5; Omicron Ser = 4.3; Mu Oph = 4.6; Zeta Oph = 4.6; Zeta Scu = 4.7; 59 Ser = 5.2; Tau Oph = 5.3; 60 Ser = 5.4. I attach a chart showing the field with stars shown to mag 6, and magnitudes shown to mag 5.5, to two decimal places but without the decimal point, e.g. 523 = mag 5.23. I'll do a more detailed chart with fainter comparison stars later. Good luck, and clear skies, Terry Moseley
