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supernova

Special Notice #20: Possible Supernova in UGC 4904 (Lynx) [Sn 2006jc]

October 11, 2006: Daniel W. E. Green, Central Bureau for Astronomical Telegrams, reports (Central Bureau Electronic Telegram 666) that S. Nakano, Sumoto, Japan, reports the discovery of a possible supernova in UGC 4904 by K. Itagaki, Teppo-cho, Yamagata, Japan, at unfiltered CCD magnitude 13.8 on images taken around Oct. 9.752 UT using a 0.60-m f/5.7 reflector. Itagaki reported that nothing is visible at this location on the Digitized Sky Survey.

Special Notice #17: Supernova 2006ej in NGC 191A (Cetus)

August 24, 2006: Daniel W. E. Green, Central Bureau for Astronomical Telegrams, reports (Central Bureau Electronic Telegram 603) that R. Mostardi, H. Khandrika, and W. Li report the LOSS discovery of an apparent supernova on unfiltered KAIT images taken on Aug. 23.39 UT (at mag 16.4) and 24.38 UT (mag 14.7). A KAIT image taken on Aug. 14.40 UT showed nothing at this position down to limiting mag 19.3.

SN 2006ej, which is offset 6.2" west and 4.6" south of the nucleus of NGC 191A, is located at: R.A. 00:38:59.77 Decl. -09:00:56.6 (2000)

Special Notice #13: Supernova 2006dd in NGC 1316 (Fornax)

June 20, 2006: Daniel W. E. Green, Central Bureau for Astronomical Telegrams, reports (Central Bureau Electronic Telegram 553) the discovery by Libert A. G. (Berto) Monard, Pretoria, South Africa, of a bright apparent supernova in NGC 1316 (= Fornax A) at unfiltered CCD magnitude 15.0-15.1 on an image taken June 19.167 UT, and confirmed by Monard on June 20.155 at magnitude 14.5-14.6, using the 0.30-m Schmidt-Cassegrain reflector at the Bronberg Observatory near Pretoria, South Africa.

Special Notice #12: 0218-21 Supernova 2006ce (Cetus)

May 11, 2006: Daniel W. E. Green, Central Bureau for Astronomical Telegrams, reports (IAU Circular 8709) the discovery by L. A. G. Monard, Pretoria, South Africa, of a bright apparent supernova in NGC 908 (Cetus) at unfiltered CCD magnitude 12.4 on images taken May 10.14 UT using a 0.30-m reflector. Monard reported nothing was visible at the location of SN 2006ce on the Digitized Sky Survey (limiting mag 20.5 R) or on his images taken prior to April 1 (limiting mag ~18).

Alerta de AAVSO 495: Brillante supernova de tipo Ia PSN J09554214+6940260 y campaña de observación

22 de enero de 2014

Evento: Supernova en M82 (Osa Mayor) = PSN J09554214+6940260

Descubierta por: Stephen J. Fossey (University College London Observatory)

Magnitud al descubrimiento: 11,7 V

Fecha de descubrimiento: enero 21,81, 2014 UT

Coordenadas: A.R. = 09 55 42,15; Decl.= +69 40 25,8 (J2000,0)
PSN J09554214+6940260 está desplazada 54" hacia el oeste y 21" hacia el sur de M82.

Alert Notice 495: Bright Type-Ia Supernova PSN J09554214+6940260 and Observing Campaign

January 22, 2014

Event: Supernova in M82 (Ursa Major) = PSN J09554214+6940260

Discovery by: Stephen J. Fossey (University College London Observatory)

Discovery magnitude
: 11.7 V

Discovery date: 2014 January 21.81 UT

Coordinates: R.A. = 09 55 42.15, Decl.= +69 40 25.8 (2000.0)
PSN J09554214+6940260 is offset 54" west, 21" south from the nucleus of M82

Alert Notice 189: 1157+62 Supernova 1994W in NGC 4041

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
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AAVSO ALERT NOTICE 189 (August 1, 1994)

1157+62 SUPERNOVA 1994W IN NGC 4041

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