Nova Aql 2001

(CCD image taken by Seiichiro Kiyota on May 18)

(CCD image taken by Gianluca Masi on July 13)

(CCD image taken at Kyoto University, on 2001 May 17).

(vsnet-alert 5876)

TAV J1907+117

According to THE ASTRONOMER Electronic Circular No 1633, Mike Collins reporte a variable object, located at 19h 07m 27s, +11o 44' 09" (J2000.0). The TA variable name TAV J1907+117 has been assigned.

The object was reported to be at mag 10.9 on May 11.99 UT. The object may have been at 12.1 on Apr. 25, but the measurement may have been affected by confusion. According to H. Yamaoka (Kyushu University), the nearest brightest star on DSS has an r=15.7, b=18.8, which suggests the variable is a large-amplitude one. The object is not in the IRAS source catalog, and it may be possible that the object may be some sort of eruptive object. Further detailed observations are strongly encouraged.

Taichi Kato

Prediscovery observations by Takamizawa

(vsnet-alert 5887)

I reports the following prediscovery observations on my patrol films.

object         YYYYMMDD(UT)   mag  code
Aqlnova2001    20001027.416  <151p  Tmz.VSOLJ
Aqlnova2001    20001213.368  <131p  Tmz.VSOLJ
Aqlnova2001    20010216.792  <131p  Tmz.VSOLJ
Aqlnova2001    20010220.793  <131p  Tmz.VSOLJ
Aqlnova2001    20010226.792   132p  Tmz.VSOLJ
Aqlnova2001    20010302.796  <131p  Tmz.VSOLJ>
Aqlnova2001    20010318.719   130p  Tmz.VSOLJ
Aqlnova2001    20010321.767   127p  Tmz.VSOLJ
Aqlnova2001    20010326.763   127p  Tmz.VSOLJ
Aqlnova2001    20010331.738   127p  Tmz.VSOLJ
Aqlnova2001    20010411.753   131p  Tmz.VSOLJ
Aqlnova2001    20010419.691   127p  Tmz.VSOLJ
Aqlnova2001    20010422.739   129p  Tmz.VSOLJ>
Aqlnova2001    20010426.677   128p  Tmz.VSOLJ
Aqlnova2001    20010512.588   108p  Tmz.VSOLJ
Aqlnova2001    20010516.634   130p  Tmz.VSOLJ

Observer's code: Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120


(vsnet-alert 5889)

This object is now confirmed spectrocopically as a nova. Chris Benn of the Isaac Newton Grooup of Telescopes in La Palma took a spectrum on the 4.2-m William Herschel Telescope last night in response to a appeal from Guy Hurst and confirmed that it has a classical nova spectrum. This i Mikee Collin's first nova discovery.

Mark Kidger

Astrometry and possible progenitor

(vsnet-alert 5890)

The following article was posted to IAUC:

M. Uemura, T. Kato, Kyoto University (KU); and H. Yamaoka, Kyushu University, write: "Unfiltered CCD images of the probable nova in Aquila (IAUC 7627) were obtained with KU 0.25-m telescope on May 17.79, when the object was mag about 11.8 (calibrated with GSC system). The position measured with 15 GSC-ACT stars of the uniform epoch (1983.609) is R.A. = 19h07m28s.425, Decl. = +11d44'45".78 (equinox 2000.0, fitting error 0".3), which is in agreement with the reported position on IAUC 7627. A faint star exists on DSS (both generation, R and Bj) images within 0".5 of the above position. Its magnitude, compared with USNO_A2.0 stars, is r about 18.7 and b about 19.6."

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