KEY TO ABBREVIATIONS
B = binoculars, L = reflector, S-C = Schmidt-Cassegrain, FFS-C = flat field Schmidt-Cassegrain, B-S = Baker-Schmidt, M=Maksutov, V = total V-band magnitude, m1 = total visual magnitude, CDia = coma diameter (at visual obs.) in arc minutes, ADia = aperture diameter (at CCD obs.) in arc minutes, DC = degree of condensation ( 0=diffuse, 9=stellar), PA = position angle (0=toward north, 90=east, etc.).

Visual and CCD photometry
1997 May 9.82 UT: m1= +0.6, CDia=10'. Tail 3o in PA 83o (S.Baroni, Milano, Italy, 7x50 binoculars).
1997 May 8.82 UT: m1= +0.5, CDia=10'. Tail 3.5o in PA 80o (S.Baroni, Milano, Italy, 7x50 binoculars).
1997 Apr. 24.81UT: V= -0.1, ADia=30' DC=8. Ion tail >5o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Apr. 18.80UT: V= -0.3, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Apr. 15.82UT: V= -0.4, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Apr. 10.83UT: V= -0.7, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Apr. 8.90UT: m1= -0.9, CDia=~20' DC=8. Ion tail ~8o, dust tail ~12o. Naked eye. (R. Palcic, Kamnik, Slovenia).
1997 Apr. 7.81UT: V= -0.5, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Apr. 6.82UT: V= -0.6, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Apr. 4.85UT: m1= -0.8, CDia=~25' DC=8. Ion tail ~15o, dust tail ~9o. Naked eye. (R. Palcic, Kamnik, Slovenia).
1997 Apr. 2.79UT: V= -0.5, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Mar. 30.80UT: V= -0.5, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Mar. 29.85UT: m1= -0.9, CDia=~25' DC=8. Ion tail ~15o, dust tail ~10o. Naked eye. (R. Palcic, Kamnik, Slovenia).
1997 Mar. 29.83UT: V= -0.4, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Mar. 27.83UT: V= -0.5, ADia=34' DC=8. Ion tail >7o, dust tail >6o (90mm, f/2.8 lens + V filter + CCD).
1997 Mar. 27.81UT: m1= -1.0, CDia=~20' DC=8. Tail ~10o. Naked eye. (R. Palcic, Kamnik, Slovenia).
1997 Mar. 25.80UT: m1= -0.8, CDia=~20' DC=8. Tail ~5o. Naked eye. (R. Palcic, Kamnik, Slovenia).
1997 Mar. 17.83UT: m1= -0.6, CDia=~20' DC=8. Tail ~4o. Naked eye. (R. Palcic, Kamnik, Slovenia).
1997 Mar. 16.17UT: V= -0.3, ADia=32' DC=8. Ion tail >6o. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 13.17UT: V= -0.3, ADia=32' DC=8. Ion tail >6o. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 12.17UT: V= -0.2, ADia=32' DC=8. Ion tail >6o. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 11.17UT: V= -0.1, ADia=32' DC=8. Ion tail >6o. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 10.18UT: V= -0.1, ADia=32' DC=8. Ion tail >6o in PA ~325o, (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 9.18UT: V= -0.1, ADia=32' DC=8. Ion tail >6o in PA ~325o, (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 7.18UT: V= +0.1, ADia=32' DC=8. Ion tail >6o in PA ~325o, (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 5.19UT: V=0.2, ADia=29' DC=8. Ion tail >6o in PA ~323o, (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Mar. 2.17UT: V=0.4, ADia=29' DC=8. Ion tail >6o in PA ~323o. Dust tail about 3o in PA ~260-305o. Moonlight conditions (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 28.19UT: V=0.5, ADia=29' DC=8. Moonlight conditions (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 23.19UT: V=0.8, CDia=~30' DC=8. Moonlight conditions (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 22.18UT: V=0.9, CDia=~35' DC=8. Moonlight conditions (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 21.20UT: V=0.9, CDia=~40' DC=8. At least ~5o ion tail in PA ~320o. Diffuse dust tail about 3o in PA ~250-320o. Moonlight conditions (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 18.19UT: V=1.0, CDia=~40' DC=8. (180mm, f/2.8 lens + V filter + CCD).
1997 Feb. 18.195UT wide-field 5-min image, taken with 3.5/65mm lens, CCD and narrow-band H2O+ filter, centered at 620nm (FWHM=10nm) shows at least 7o ion tail in PA ~315o.
1997 Feb. 10.19UT: V=1.6, CDia=~40' DC=7. At least ~3o ion tail in PA ~320o. Diffuse fan-like dust tail in PA ~240-320o (180mm, f/2.8 lens + V filter + CCD).
1997 Feb. 8.19UT: V=1.7, CDia=~40' DC=7. At least ~3o ion tail in PA ~320o. Diffuse fan-like dust tail in PA ~240-320o (180mm, f/2.8 lens + V filter + CCD).
1997 Feb. 7.21UT: V=1.8, CDia=~40' DC=7. At least ~3o ion tail in PA ~320o. Diffuse fan-like dust tail in PA ~240-320o (180mm, f/2.8 lens + V filter + CCD).
1997 Feb. 4.21UT: V=1.9, CDia=~60' DC=7. Diffuse dust tail in PA ~215-320, at least ~3o ion tail in PA ~320o. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 4.18UT: V=1.9, CDia=~50' DC=7. At least ~2.5o gas tail in PA ~320o (180mm, f/2.8 lens + V filter + CCD).
Naked eye observation on Feb. 3.20UT shows ~12 deg straight tail in PA ~330 deg.
1997 Feb. 3.20UT: V=2.0, CDia=~60' DC=7. Diffuse dust tail in PA ~215-320, at least ~3o ion tail in PA ~320o. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Feb. 3.19UT: V=2.0, CDia=~50' DC=7. (180mm, f/2.8 lens + V filter + CCD).
1997 Jan. 31.21UT: V=2.3, CDia=~60' DC=7. About 2o diffuse dust tail in PA ~218o, ~2o ion tail in PA ~320o. Moonlight conditions. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Jan. 30.20UT: m1=2.3, CDia=~25' DC=6. Tail ~2o in PA 250o (8x40B). Rok Palcic, Kamnik, Slovenia.
1997 Jan. 29.20UT: m1=2.5, CDia=~20' DC=6. Tail ~1.5o in PA 270o (8x40B). Rok Palcic, Kamnik, Slovenia.
1997 Jan. 29.20UT: V=2.2, CDia=~60' DC=7. About 2o diffuse dust tail in PA ~218o, ~2o ion tail in PA ~320o. Moonlight conditions. (90mm, f/4 lens + V filter + ST-6 CCD).
1997 Jan. 17.20UT: V=2.8, CDia=~50'x30' DC=7. About 2o diffuse dust tail in PA ~190o, ~2o ion tail in PA ~345o (180mm, f/2.8 lens + V filter + CCD).
1997 Jan. 16.22UT: V=2.8, CDia=~50'x30' DC=7. About 2o diffuse dust tail in PA ~190o, ~2o ion tail in PA ~345o (180mm, f/2.8 lens + V filter + CCD).
1997 Jan. 14.21UT: m1=3.0, CDia=~13' DC=6. Star-like central condensation. About 1o fan-like tail in PA 355o (7x50B). H. Mikuz, Pliskovica na Krasu, Slovenia.

1996
1996 Dec. 4.71UT: V=4.3, CDia=~35'x25' DC=7. Fan-like tail ~1o. Dec. 3 and 4: several jets are present in inner coma: PA~40o:~7'; PA~62o:~12'; PA~90o:~5'; PA~290o:~3'. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Dec. 3.71UT: V=4.3, CDia=~35'x25' DC=7. Fan-like tail ~1o. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Dec. 1.71UT: V=4.2, CDia=~35'x25' DC=7. Fan-like tail ~1o in PA~55-130o. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Nov. 24.70UT: V=4.8, CDia=~25'x15' DC=7. Strong moonlight. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Nov. 19.71UT: V=4.7, CDia=~30'x18' DC=7. At least ~1o broad tail in PA ~90-135o. Three prominent streamers are present inside the coma: PA~45o/~12'; PA~70o/~8'; PA~92o/~6'. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Nov. 9.73UT: V=5.1, CDia=~25'x15' DC=7. At least ~1o broad tail in PA ~80-125o. Three prominent streamers are present inside the coma: PA~45o/~12'; PA~80o/~8'; PA~100o/~8'. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Nov. 8.75UT: V=5.0, CDia=~25'x15' DC=7. At least ~1o broad tail in PA ~80-125o. (20-cm, f/2 B-S camera + V filter + CCD).
1996 Nov 8.75 in 25x150B: type II tail dominates the scene; also 1.3 deg. type I faint tail at p.a. 55 deg. Features noted on Nov 3.75 still present [ZAN].
1996 Nov. 8.75UT: m1=5.0, CDia=15' DC=6-7. Tail ~2o in PA 85o (7x42B). M. V. Zanotta, Italy.
1996 Nov. 3.75UT in 25x150B: coma dominated by a bright star-like nucleus; also present is a disk like central condensation, nearly 2' in diameter; the sharp central part of the coma is offset lower-left with respect to geometric center of a diffuse and flattened in sunward direction, outer coma. There are short jets within the coma at p.a. 50, 80, 130 and 330 deg; also 20' spike at p.a. 20 deg. Tabulated tail's data refers to tipe I, straight and quite faint one; tipe II tail also present - p.a. 115 deg, 1.0 deg in length - looks very broad, sharply curved southward and diffuse but brighter than tipe I one [ZAN].
1996 Nov. 3.75UT: m1=5.0, CDia=13' DC=6-7. Tail ~1.5o in PA 70o (7x42B). M. V. Zanotta, Italy.
1996 Nov. 1.74UT: V=5.0, CDia=~25'x20' DC=7 (20-cm, f/2 B-S camera + V filter + CCD).
1996 Oct. 30.76UT: V=5.2, CDia=~25'x20' DC=7. Broad fan-like tail at least ~1o in PA ~80-125o (20-cm, f/2 B-S camera + V filter + CCD).
1996 Oct. 23.74UT: V=5.0, CDia=~25'x20' DC=7. Broad fan-like tail at least ~1o in PA ~95-125o (20-cm, f/2 B-S camera + V filter + CCD).
1996 Oct. 12.76UT: V=5.0, CDia=~30'x20' DC=7. Broad fan-like tail at least ~1o in PA ~100-135o (20-cm, f/2 B-S camera + V filter + CCD).
Oct. 2.81, 3.81UT in 25x150B: oval diffuse outer coma with sharp star-like nuclear region surrounded by 2.5' disk-like central condensation; small jet-like features within inner coma suspected but not as easily visible as in Sep.; curved tail/fountain ends at p.a. 70 deg and could reach 2 deg. in lenght; also 1.5 deg tail (possibly type I) at p.a. 90 deg; spike, nearly 0.5 deg, long at p.a. 110 deg; fan tail p.a. 0 - 90 deg [ZAN].
1996 Oct. 3.81UT: m1=5.4 (naked-eye estimate). M. V. Zanotta.
1996 Oct. 3.80UT: V=5.3, CDia=~20' DC=7. Broad fan-like tail at least ~1o in PA ~115o (20-cm, f/2 B-S camera + V filter + CCD).
1996 Oct. 2.81UT: m1=5.4 (naked-eye estimate). M. V. Zanotta.
1996 Oct. 2.81UT: m1=5.5, CDia=13' DC=6-7. Tail ~1.5o in PA 70o (7x42B). M. V. Zanotta, Mt. Ponna, Italy.
1996 Sep. 30.79UT: V=5.3, CDia=~20' DC=7. Broad fan-like tail at least ~1o in PA ~115o. Conspicious jet (probably ion tail) ~7' long, extending from nuclear region in PA 50o. Two other jets ~5' long in PA 90o and 105o (20-cm, f/2 B-S camera + V filter + CCD).
1996 Sep. 30.75UT: m1=5.5, CDia=~13' DC=6. Tail ~0.5o in PA ~120o (8x40B). R. Palcic, Kamnik, Slovenia.
1996 Sep. 29.78UT: m1=5.6, CDia=11' DC=6-7. Tail ~1.2o in PA 70o (7x42B). M. V. Zanotta, Mt. Ponna, Italy.
Sep. 28.78UT in 20x80B: oval diffuse outer coma with sharp star-like nuclear region surrounded by 2.5' disk-like central condensation; fan tail p.a. 0 - 90 deg; curved tail/fountain starts north of false nucleus and ends at p.a. 70 deg; also &1 deg tail at p.a. 90 deg. [ZAN].
1996 Sep. 28.78UT: m1=5.7, CDia=8' (20x80B). M. V. Zanotta, Laino, Italy.
Sep. 15.82: in 25x150B the fountain/dust tail feature looks broader, brighter and more curved than previous nights. Small details in the inner coma still visible [ZAN].
1996 Sep. 15.82UT: m1= 5.6, CDia=11' DC=5. Tail ~0.8o in PA 70o (7x42B). M.V.Zanotta, S. Bartolomeo, Italy.
1996 Sep. 14.89UT: m1=5.7, CDia=~13' DC=6 (8x40B). R. Palcic, Kamnik, Slovenia.
Sep. 14.80: in 41 L, f/4.5, 188x: oval outer coma with 2' disk-like central condensation and prominent star-like false nucleus. Features as for Sep. 13.84: those at p.a. 30 -bigger, brigter- and 135 deg are curved while other two are straight and narrow (jet like) [ZAN].
1996 Sep. 14.82UT: m1= 5.6, CDia=11'. Tail ~0.8o in PA 70o (7x42B). M.V.Zanotta, S. Bartolomeo, Italy.
1996 Sep. 13.84: in 25x150B oval diffuse outer coma with strong star-like nuclear region surrounded by a 2.5' disk-like central condensation. Small but easy features within inner coma as never seen in other comets before in a 25x scope: spikes nearly 3' long at P.A. 0 and 30 deg; spike nearly 5'long at P.A. 135 and 305 deg.; broad fan tail, centered at p.a. 105 deg. Curved huge fountain/tail starts to the North and bends toward East [ZAN].
1996 Sep. 13.83UT: m1= 5.6, CDia=11'. Tail ~0.8o in PA 70o (7x42B). M.V.Zanotta, S. Bartolomeo, Italy.
1996 Sep. 10.87UT: m1=5.4, CDia=~12' DC=7 (8x40B). R. Palcic, Kamnik, Slovenia.
1996 Sep. 9.80UT: V=6.0, CDia=~18'x25' DC=7. Broad fan-like tail at least ~1o in PA ~115o. Conspicious jet (probably ion tail) ~5' long, extending from nuclear region in PA 47o (20-cm, f/2 B-S camera + V filter + CCD).
1996 Sep. 8.77UT: m1=5.4, CDia=14' DC=5. Tail 1o in PA 80o. (7x42B). M. V. Zanotta, Milano, Italy.
Sep. 7.82 in 25x150B: Aug. 31.86 description still adequate; new spike at p.a. 355 deg., 0.4 deg. long also noted [ZAN].
1996 Sep. 7.82UT: m1=5.4, CDia=14' DC=5. Tail 1o in PA 85o (7x42B). M. V. Zanotta, Milano, Italy.
Sep. 1.87, 5.83, 6.86 in 25x150B: see above Aug. 31.86 description [ZAN].
1996 Sep. 6.86UT: m1=5.4, CDia=14' DC=5. Tail 1o in PA 85o (7x42B). M. V. Zanotta, Milano, Italy.
1996 Sep. 5.94UT: m1=5.3, CDia=~12' DC=7 (8x40B). R. Palcic, Kamnik, Slovenia.
1996 Sep. 5.82UT: V=6.1, CDia=~25' DC=7. Broad, fan-like tail at least 1o in PA ~115o. Jet-like feature ~5' long, extending from nuclear region in PA 47o (20-cm, f/2 B-S camera + V filter + CCD).
1996 Sep. 1.87UT: m1=5.4, CDia=14' DC=5. Tail 1o in PA 90o (7x42B). M. V. Zanotta, Milano, Italy.
1996 Sep. 1.87UT: m1=5.3, CDia=~20' (naked-eye). M. V. Zanotta, Milano, Italy.