MPEC 2023-P87 : COMET C/2023 P1 (Nishimura)
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M.P.E.C. 2023-P87 Issued 2023 August 15, 19:16 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2023 P1 (Nishimura)
I. Endoh reports the discovery of a comet by H. Nishimura in images taken
on Aug. 11 UT, at Gomyo, Kakegawa, Japan with a digital camera, reporting a 5'
coma. Reports of cometary features are as follows:
OC Date Reporter Coma Tail PA Exposures
P87 2023-08-13 K. Yoshimoto 216" 30x30s
X09 2023-08-14 S. Deen 100" 200" 267-268
Q38 2023-08-14 M. Mattiazzo 180"
950 2023-08-14 M. Masek 78"
C40 2023-08-15 A. Ivanov 50"
M50 2023-08-15 G. Masi 90" 900" 270
G00 2023-08-15 M. Jaeger 270" 600" 275 7x60s
950 2023-08-15 M. Masek 222" 29x30s
Observations:
CK23P010* V2023 08 11.76854 07 04 09.47 +18 52 24.3 11.0 T EP087247
CK23P010 v2023 08 11.76854 1 138.02806 +34.73972 40 EP087247
CK23P010 V2023 08 11.76888 07 04 09.60 +18 52 27.7 EP087247
CK23P010 v2023 08 11.76888 1 138.02806 +34.73972 40 EP087247
CK23P010 V2023 08 11.76921 07 04 10.09 +18 52 26.6 EP087247
CK23P010 v2023 08 11.76921 1 138.02806 +34.73972 40 EP087247
CK23P010 V2023 08 11.79992 07 04 14.52 +18 52 42.0 EP087247
CK23P010 v2023 08 11.79992 1 138.02806 +34.73972 40 EP087247
CK23P010 V2023 08 12.77992 07 06 58.28 +19 05 11.5 10.2 T EP087247
CK23P010 v2023 08 12.77992 1 138.02806 +34.73972 40 EP087247
CK23P010 V2023 08 12.78035 07 06 58.56 +19 05 10.8 10.5 T EP087247
CK23P010 v2023 08 12.78035 1 138.02806 +34.73972 40 EP087247
CK23P010 V2023 08 12.78076 07 06 58.93 +19 05 16.8 10.3 T EP087247
CK23P010 v2023 08 12.78076 1 138.02806 +34.73972 40 EP087247
CK23P010 KC2023 08 13.79848 07 09 56.21 +19 18 33.3 10.0 TVEP087P87
CK23P010 KC2023 08 13.80417 07 09 57.12 +19 18 37.0 VEP087P87
CK23P010 KC2023 08 13.80977 07 09 58.19 +19 18 40.9 VEP087P87
CK23P010 :C2023 08 14.22001 07 11 11.56 +19 24 08.6 11.4 VqEP087950
CK23P010 :C2023 08 14.22157 07 11 11.88 +19 24 09.8 11.5 VqEP087950
CK23P010 C2023 08 14.40011207 11 44.25 +19 26 38.1 WEP087X09
CK23P010 C2023 08 14.40189907 11 44.62 +19 26 39.4 WEP087X09
CK23P010 !C2023 08 14.48539 07 11 59.77 +19 27 40.8 10.0 GVEP087U94
CK23P010 !C2023 08 14.48710 07 12 00.02 +19 27 42.0 10.0 GVEP087U94
CK23P010 0C2023 08 14.48836 07 12 00.35 +19 27 42.9 VEP087U94
CK23P010 !C2023 08 14.48881 07 12 00.38 +19 27 43.1 10.0 GVEP087U94
CK23P010 0C2023 08 14.48982 07 12 00.63 +19 27 44.1 VEP087U94
CK23P010 0C2023 08 14.49129 07 12 00.87 +19 27 45.7 VEP087U94
CK23P010 0C2023 08 14.49275 07 12 01.14 +19 27 46.7 10.8 GVEP087U94
CK23P010 C2023 08 14.76161 07 12 50.49 +19 31 24.0 10.5 TqEP087D95
CK23P010 C2023 08 14.76388 07 12 50.93 +19 31 26.2 qEP087D95
CK23P010 C2023 08 14.76728 07 12 51.54 +19 31 28.7 qEP087D95
CK23P010 C2023 08 14.77197 07 12 52.38 +19 31 32.8 qEP087D95
CK23P010 C2023 08 14.83152 07 13 03.22 +19 32 26.0 12.8 GVEP087Q38
CK23P010 C2023 08 14.83307 07 13 03.53 +19 32 28.6 10.0 TVEP087Q38
CK23P010 C2023 08 14.83463 07 13 03.94 +19 32 30.5 12.9 GVEP087Q38
CK23P010 C2023 08 14.83616 07 13 04.22 +19 32 32.9 12.8 GVEP087Q38
CK23P010 1C2023 08 15.03536 07 13 41.22 +19 35 07.9 13.5 GVEP087C40
CK23P010 1C2023 08 15.03700 07 13 41.60 +19 35 07.5 13.5 GVEP087C40
CK23P010 1C2023 08 15.03845 07 13 41.75 +19 35 07.0 13.7 GVEP087C40
CK23P010 KC2023 08 15.08390607 13 50.47 +19 35 45.0 10.9 VZEP087G23
CK23P010 KC2023 08 15.08683 07 13 50.87 +19 35 48.8 14.3 GVEP087G00
CK23P010 KC2023 08 15.08882 07 13 51.24 +19 35 50.3 14.4 GVEP087G00
CK23P010 KC2023 08 15.09101307 13 51.72 +19 35 51.4 11.1 VZEP087G23
CK23P010 KC2023 08 15.09191 07 13 51.81 +19 35 53.0 14.5 GVEP087G00
CK23P010 KC2023 08 15.09374 07 13 52.14 +19 35 54.5 14.0 GVEP087G00
CK23P010 KC2023 08 15.09498 07 13 52.40 +19 35 55.5 14.5 GVEP087G00
CK23P010 KC2023 08 15.09740707 13 52.89 +19 35 57.0 11.0 VZEP087G23
CK23P010 C2023 08 15.10332107 13 53.99 +19 36 02.8 14.0 RVEP087M50
CK23P010 KC2023 08 15.10396 07 13 54.19 +19 36 02.4 13.1 RqEP087157
CK23P010 KC2023 08 15.10522 07 13 54.36 +19 36 03.5 13.4 RqEP087157
CK23P010 KC2023 08 15.10650 07 13 54.57 +19 36 05.0 13.7 RqEP087157
CK23P010 C2023 08 15.10967107 13 55.14 +19 36 07.7 13.8 RVEP087M50
CK23P010 C2023 08 15.12100107 13 57.28 +19 36 17.2 12.7 GVEP087L06
CK23P010 KC2023 08 15.12265307 13 57.59 +19 36 18.8 12.4 GVEP087L06
CK23P010 KC2023 08 15.12296307 13 57.70 +19 36 17.5 12.9 GVEP087L06
CK23P010 KC2023 08 15.12894307 13 58.79 +19 36 23.8 14.1 GXEP087L01
CK23P010 KC2023 08 15.12949207 13 58.91 +19 36 24.3 14.2 GXEP087L01
CK23P010 KC2023 08 15.12998107 13 59.04 +19 36 23.8 14.3 GXEP087L01
CK23P010 C2023 08 15.18919 07 14 10.38 +19 37 12.6 13.0 GVEP087J01
CK23P010 C2023 08 15.19009 07 14 10.53 +19 37 09.1 12.8 GVEP087J01
CK23P010 KC2023 08 15.19054 07 14 10.38 +19 37 15.2 15.0 GVEP087J01
CK23P010 C2023 08 15.19100 07 14 10.69 +19 37 17.7 12.6 GVEP087J01
CK23P010 C2023 08 15.19190 07 14 10.99 +19 37 11.3 12.7 GVEP087J01
CK23P010 KC2023 08 15.19236 07 14 10.93 +19 37 15.5 14.8 GVEP087J01
CK23P010 C2023 08 15.19281 07 14 11.03 +19 37 15.3 12.8 GVEP087J01
CK23P010 KC2023 08 15.19418 07 14 10.93 +19 37 18.1 15.2 GVEP087J01
CK23P010 :C2023 08 15.21699 07 14 15.43 +19 37 36.4 11.2 VqEP087950
CK23P010 2C2023 08 15.22935 07 14 17.714+19 37 46.92 13.5 GVEP087G40
CK23P010 :C2023 08 15.23144 07 14 18.14 +19 37 48.4 11.3 VqEP087950
CK23P010 2C2023 08 15.23277 07 14 18.355+19 37 49.26 13.6 GVEP087G40
CK23P010 2C2023 08 15.23627 07 14 19.027+19 37 52.54 13.6 GVEP087G40
CK23P010 S2023 08 15.26761107 14 24.711+19 38 13.55 LEP087C53
CK23P010 s2023 08 15.2676111 + 2298.5891 + 1777.9475 + 6520.9457 EP087C53
CK23P010 S2023 08 15.27049407 14 25.170+19 38 14.91 LEP087C53
CK23P010 s2023 08 15.2704941 + 1391.6769 + 228.9388 + 6996.6606 EP087C53
CK23P010 S2023 08 15.27337707 14 25.573+19 38 17.56 LEP087C53
CK23P010 s2023 08 15.2733771 + 391.0699 - 1335.4807 + 7000.1378 EP087C53
CK23P010 S2023 08 15.33983307 14 38.394+19 39 11.48 LEP087C53
CK23P010 s2023 08 15.3398331 + 1521.0533 + 444.1896 + 6959.3755 EP087C53
CK23P010 S2023 08 15.34463807 14 39.125+19 39 15.93 LEP087C53
CK23P010 s2023 08 15.3446381 - 152.9270 - 2136.3217 + 6808.6033 EP087C53
CK23P010 S2023 08 15.40829407 14 51.430+19 40 09.48 LEP087C53
CK23P010 s2023 08 15.4082941 + 1926.9233 + 1134.6360 + 6778.9971 EP087C53
CK23P010 S2023 08 15.41502107 14 52.513+19 40 15.19 LEP087C53
CK23P010 s2023 08 15.4150211 - 382.1589 - 2466.5645 + 6687.3945 EP087C53
Observer details:
157 Frasso Sabino. Observers R. Haver, R. Gorelli. Measurer R. Haver.
0.37-m f/6.70 Cassegrain + CMOS.
247 Roving Observer. Observer H. Nishimura. f/3.0 + Canon EOS 6D.
950 La Palma. Observer M. Masek. 0.25-m f/6.8 reflector + CCD.
C40 Kuban State University Astrophysical Observatory. Observers A. Ivanov, A.
Barcov, V. Ivanov, V. Lysenko, N. Yakovenko, N. Ivanova, N. Gorbunov, G.
Kurbatov, P. Shchukin, V. Roshchupko. Measurer A. Ivanov. 0.51-m f/8
reflector + CCD.
C53 NEOSSat. Observer C. Smith-Perez. Measurers D. D. Balam, D. W. E. Green,
C. E. Spratt. 0.15-m Maksutov Reflector + CCD.
D95 Kurihara. Observer T. Takahashi. 0.25-m f/4.2 reflector + CCD.
G00 AZM Martinsberg, Oed. Observers M. Jaeger, E. Prosperi, S. Prosperi.
Measurer M. Jaeger. 0.4-m f/3.2 reflector + CCD.
G23 Vulpecula Observatory, Budapest. Observer Z. Banfalvy. 0.15-m f/5.32
refractor + CCD.
G40 Slooh.com Canary Islands Observatory. Observer N. Paul. 0.43-m f/6.8
Corrected Dall-Kirkham + CCD.
J01 Observatorio Cielo Profundo, Leon. Observer J. Gonzalez. 0.20-m f/6
Ritchey-Chretien + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, I. Forkapa, E.
Pettarin. Measurer E. Pettarin. 1.0-m f/2.9 reflector + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. Measurer
P. Sicoli. 0.36m Schmidt Cassegrain + CCD.
M50 Virtual Telescope Project, Manciano. Observer G. Masi. 0.25-m f/4.5
astrograph + CCD.
P87 Hirao Observatory, Yamaguchi. Observer K. Yoshimoto. 0.20-m f/8 Ritchey-
Chretien + CCD + f/5.4 focal Reducer.
Q38 Swan Hill. Observer M. Mattiazzo. C11 RASA f/2.2 + Canon 6D.
U94 iTelescope Observatory, Beryl Junction (Sato). Observers A. Pearce, H.
Sato. 0.25-m f/3.4 reflector + CCD T5 Beryl Junction Utah USA, 0.51-m
f/6.8 astrograph + CCD + f/4.5 focal reducer.
X09 Deep Random Survey, Rio Hurtado. Observers A. Schnabel, D. Ruhela.
Measurer S. Deen. 0.43-m reflector + CMOS.
Orbital elements:
C/2023 P1 (Nishimura)
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Sept. 18.18879 TT Rudenko
q 0.2211257 (2000.0) P Q
Peri. 117.17778 +0.35694964 -0.59978608
Node 68.25181 -0.85465181 -0.51912711
e 1.0 Incl. 129.55528 +0.37703745 -0.60890369
From 70 observations 2023 Aug. 11-15, mean residual 0".5.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 07 16 06 13 44.5 +14 19 08 2.4741 1.5729 21.5 13.7 13.9
...
2023 07 31 06 38 25.9 +16 31 10 2.0876 1.2924 28.7 22.2 12.7
...
2023 08 08 06 55 30.6 +17 56 41 1.8570 1.1325 32.0 28.3 11.9
...
2023 08 14 07 11 28.6 +19 11 26 1.6739 1.0068 33.9 34.2 11.1
2023 08 15 07 14 30.5 +19 24 57 1.6426 0.9853 34.2 35.3 11.0
2023 08 16 07 17 40.1 +19 38 47 1.6111 0.9636 34.4 36.4 10.9
...
2023 08 22 07 40 02.4 +21 08 41 1.4188 0.8298 35.1 44.5 9.9
...
2023 08 30 08 24 31.9 +23 17 53 1.1605 0.6400 33.4 60.3 8.4
...
2023 09 14 11 29 58.4 +17 19 58 0.8546 0.2676 13.7 117.4 3.9
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-P87
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