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THE ASTRONOMER Electronic Circular No 905 1994 Dec 17 16.35UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074
INTERNET: GMH at AST.STAR.RL.AC.UK or GMH at GXVG.AST.CAM.AC.UK
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PERIODIC COMET KOPFF (1994s)
This comet has been recovered by C. W. Hergenrother, Lunar and
Planetary Laboratory, on CCD frames obtained by S. M. Larson with
the 1.5-m reflector at the Catalina Station. The images are very
faint (near threshold on the second night). The comet is stellar
in appearance, with no hint of a coma or tail. The indicated
correction to the prediction on MPC 22032 is Delta(T) = +0.02 day.
1994 UT R.A. (2000) Decl. m2
Nov. 30.50175 10 26 18.01 +11 35 17.7 22.8
30.50913 10 26 18.10 +11 35 17.7 22.0
30.51556 10 26 18.21 +11 35 16.5 23.0
30.52096 10 26 18.38 +11 35 16.5 21.8
Dec. 1.51258 10 26 36.35 +11 34 25.1 22.8
1.51769 10 26 36.56 +11 34 24.6 22.7
1.52237 10 26 36.64 +11 34 24.6 23.0
IAUC 6111
PERIODIC COMET CLARK (1994t)
S. Nakano, Sumoto, Japan, reports the recovery of this comet
by A. Nakamura (Kuma Kogen, 0.60-m f/6.0 Ritchey-Chretien + CCD):
1994 UT R.A. (2000) Decl. m1
Dec. 5.85747 13 39 25.93 - 3 30 11.6 17.5
5.86123 13 39 26.30 - 3 30 13.9
5.86649 13 39 26.96 - 3 30 17.9
6.84688 13 41 17.86 - 3 41 24.7 17.6
6.85660 13 41 18.99 - 3 41 31.4
Nakamura notes the comet as being diffuse with central
condensation, with coma diameter 0'.35; on Dec. 5, there was a hint
of tail in p.a. 250 deg.
The following orbital elements by Nakano are from 35 observations,
1984-1994 (mean residual 0".92); nongravitational
parameters A1 = -0.31 +/- 0.73, A2 = -0.2796 +/- 0.0136.
T 1995 May 31.1063 TT w 208.85468 )
e 0.50203950 O 59.72627 ) 2000.0
q 1.5524960 A.U. i 9.50461 )
Source: IAUC 6112 Positions are geocentric
Ephemeris by G.Hurst using EPH.EXE by N.James:
m1 = 10.5 + 5.0 log R + 15.0 log r
Date R.A. (2000) Dec. R r Elong Mag. Motion
h m o ' (AU) (AU) o "/hr P.A.
1994 Dec
14.00 13 54.94 -5 2.0 2.613 2.178 53.6 17.7 77 111
19.00 14 4.64 -5 57.9 2.539 2.150 56.0 17.5 78 111
24.00 14 14.48 -6 53.2 2.464 2.122 58.5 17.4 79 110
29.00 14 24.46 -7 47.9 2.388 2.095 60.9 17.2 79 110
1995 Jan
3.00 14 34.58 -8 41.8 2.313 2.067 63.3 17.1 80 110
8.00 14 44.84 -9 34.9 2.237 2.040 65.7 16.9 81 109
13.00 14 55.24 -10 27.1 2.162 2.013 68.0 16.7 81 109
18.00 15 5.79 -11 18.4 2.087 1.986 70.4 16.6 82 108
23.00 15 16.50 -12 8.6 2.013 1.960 72.7 16.4 83 107
28.00 15 27.36 -12 57.8 1.939 1.934 75.0 16.2 84 107
KX AQUILAE
M.Iida, Nagano, Japan reports the detection of an outburst of this
obscure UG variable located at: RA 19h31m36s DEC +14 11.1[1950].
On 1994 Dec 6.379, mag 15.0 (0.16-m reflector + ST6 CCD unfiltered)
Confirmed by Osaka-Kyoiku Univ.team (K.Matsumoto) on Dec 6, R=16.
Guy M Hurst