Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4282: 1986M; N And 1986; GK Per; Corrs

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 4281  SEARCH Read IAUC 4283
IAUC number

                                                  Circular No. 4282
Central Bureau for Astronomical Telegrams
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444

     E. Cappellaro and L. Rosino, Asiago Astrophysical Observatory,
report the discovery by Candeo of a supernova 33" north and 15"
east of the center of NGC 7499 (R.A. = 23h07.8, Decl. = +7 19', equinox
1950.0); on Dec. 7, the object was at mpg = 16.5.

     The following precise position has been reported, obtained at
Tokyo Astronomical Observatory's Dodaira Station on Dec. 8.6 UT by
M. Kondo with the 0.50-m Schmidt telescope and measured by H.
Kosai:  R.A. = 23h09m47.72, Decl. = +47 12'00.8 (equinox 1950.0).
     K. Krisciunas, Keaau, HI, reports the following photoelectric
measurements:  Dec. 9.340, V = 6.83, B-V = +0.41.  Visual magnitude
estimates:  Dec. 8.94, 6.3 (P. Schmeer, Bischmisheim, W. Germany);
9.31, 6.8 (D. Pickup, Hilo, HI); 9.82, 6.9 (G. Hurst, Basingstoke,
England); 9.85, 6.8 (M. Taylor, Wakefield, England).

     F. Strafella, Physics Department, University of Lecce; D.
Lorenzetti and L. Spinoglio, Istituto Fisica Spazio Interplanetario,
Consiglio Nazionale Ricerche (CNR); and P. Persi, Istituto de
Astrofisica Spaziale, CNR, report:  "The following infrared
magnitudes have been observed at the Tirgo telescope:  Nov. 15.10 UT,
J = 10.9, H = 10.4, K = 10.0, L = 8.3; 27.95, 8.4, 8.3, 8.2, 8.3;
28.83, 8.6, 8.4, 8.4, 8.1; 28.88, 8.4, 8.3, 8.3, 8.5; Dec. 5.00,
9.6, 9.4, 9.3, -.  Errors in J, H, K are < 0.05 mag, and in L are about
0.2 mag.  Thus, delta J was about -2.5 mag from quiescent state to outburst
state.  Since delta V during the same time interval was about -2 mag, it
seems that at maximum brightness the star's outer disk radius is
larger than at quiescence."
     Visual magnitude estimate by J. E. Bortle, Stormville, NY:
Dec. 5.08 UT, 11.3.

IAUC 4264.  28 Tauri, line 2.  For  obtained of  read  obtained at
the Haute-Provence Observatory of
IAUC 4274.  GK Persei, line 1; and SU Tauri, line 2.  For  E.
Schweizer  read  E. Schweitzer

1986 December 10               (4282)            Daniel W. E. Green

Read IAUC 4281  SEARCH Read IAUC 4283

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!