Monday, February 19, 2007

Nova Scorpii 2007

AAVSO Special Notice #33

V1280 Scorpii = Nova Scorpii 2007
(February 7, 2007)

IAUC 8803 announces a new nova in Scorpius, independently
discovered by Y. Nakamura and Y. Sakurai. The position is

16:57:40.91 -32:20:36.4 J2000

and the unfiltered magnitude is about 8.3
(T. Krajci, 2007-02-06).

Spectra indicate blue color, no emission blueward of 540nm,
but Halpha emission with P-Cyg profile.

This special notice was compiled by: Arne A. Henden

AAVSO ALERT NOTICE 346 (February 16, 2007)

SUBJECT: 1651-32 V1280 SCO = NOVA SCORPII 2007

Event: Very Bright Nova in Scorpius

This nova, discovered at 9th magnitude 12 days ago, has brightened dramatically in the past few days to 3rd magnitude, becoming one of the brightest novae in the past several years. It has gained the attention of the professional community and will be observed by numerous satellites, including Chandra, Swift, and INTEGRAL.

Discovered Independently by:
- Yuji Nakamura, Kameyama, Mie, Japan (reported by H. Yamaoka, Kyushu University, IAU Circular 8803);
- Yukio Sakurai, Mito, Ibaraki-ken, Japan (reported by S. Nakano, Sumoto, Japan, IAU Circular 8803)

Discovery Date:
- Nakamura: Feb. 4.8624 UT - Sakurai: Feb. 4.854 UT

Discovery Magnitude:
- Nakamura: 9.9 on two unfiltered CCD images taken with a 135-mm camera lens;
- Sakurai: 9.4 on two 10-s CCD exposures taken with a Fuji FinePix S2 Digital Camera (+ Nikon 180-mm f/2.8 lens)

Positions have been reported by Nakamura, Sakurai, Nakano, and Kadota. Please use the following position measured by Arne Henden, AAVSO, from photometry obtained at Sonoita Research Observatory:

R.A. = 16h 57m 41.26s, Decl. = -32o 20' 35.6" (epoch 2000.0)


Infrared said...

einai toso lampro pou mporeis na to deis kai me erasitexniko tileskopio.

Citronella said...

μόνο που είναι ορατό λίγο πριν τα χαράματα!


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