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IAUC 5816: N Aql 1993; 1993J

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                                                  Circular No. 5816
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


NOVA AQUILAE 1993
     G. S. Rossano, R. J. Rudy, R. C. Puetter, and D. K. Lynch,
Space and Environment Technology Center, The Aerospace Corporation,
write:  "We have observed this object on June 3.5 UT with the Lick
Observatory 3-m Shane telescope and the Aerospace cooled scanning
germanium spectrometer.  The spectrum (range 750-1350 nm, resolution
300-550) is dominated by neutral oxygen at 844.6 and 1128.7 nm
excited by the Lyman-beta flourescence mechanism.  Moderate O I at
777.4 and 1316.4 nm is also present.  Moderately strong Paschen-
beta through Paschen12 are detected, as well as the Ca II triplet
at 849.8, 854.2, and 866.2 nm.  He I (1083.0 nm) is weak or absent.
The spectrum possesses numerous moderate and weak permitted lines
of neutral nitrogen and neutral carbon.  Fe II is seen at 892.7,
999.7, 1017.4, 1086.3, and 1112.6 nm.  A monochromatic continuum
magnitude of 7.0 was observed at 1250 nm."
     C. E. Woodward, University of Wyoming; G. F. Lawrence, R. D.
Gehrz, and M. Creese, University of Minnesota; and J. Hakkila,
Mankato State University, report the following infrared magnitudes,
obtained using the Mt. Lemmon Observatory 1.52-m telecope (+ InSb
photometer) on May 28.4 UT, J = 5.91 +/- 0.04, H = 5.57 +/- 0.04,
K = 5.31 +/- 0.03, L' = 4.03 +/- 0.04, M = 3.60 +/- 0.04; 31.4,
6.28 +/- 0.04, 6.10 +/- 0.04, 5.82 +/- 0.04, 4.67 +/- 0.04, 4.17
+/- 0.07; June 1.4, 6.32 +/- 0.03, 6.13 +/- 0.03, 5.83 +/- 0.02,
4.69 +/- 0.03, 4.21 +/- 0.06; 2.5, 6.41 +/- 0.04, 6.18 +/- 0.06,
5.93 +/- 0.04, 4.73 +/- 0.05, 4.16 +/- 0.06.


SUPERNOVA 1993J IN NGC 3031
     R. Pressberger and H. M. Maitzen, Institute for Astronomy,
Vienna, report photoelectric measurements of SN 1993J, obtained at
the 1-m telescope of the A. Purgathofer Observatory at Klosterneuburg,
in the Stromgren system plus intermediate-band (half-width
130 nm) filters g1 (503 nm) and g2 (521 nm) relative to the comparison
star at R.A. = 9h55m41s.5, Decl. = +69o00'30" (equinox 2000.0):
Apr. 27.89 UT, u = +1.4, v = +0.43, b = +0.07, g1 = -0.10, g2 =
-0.08, y = -0.47; May 11.91, +2.6, +1.29, +0.87, +0.59, +0.52,
+0.17; 14.91, +2.3, +1.28, +0.87, +0.65, +0.58, +0.25; 17.89, +2.4,
+1.30, +0.95, +0.68, +0.60, +0.28.  The precision of the u
measurements is about 0.1 mag, the remaining filters about 0.02 mag.


1993 June 15                   (5816)            Daniel W. E. Green

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