MPEC 2023-F148 : COMET C/1971 M1 (Edwards)
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M.P.E.C. 2023-F148 Issued 2023 March 27, 06:09 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
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URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/1971 M1 (Edwards)
M. Meyer reports measurements made by him, along with G. W. Kronk, of scans
of photographic plates detecting comet X/1971 M1. On the 1971 July 25 images,
the comet displayed a 5' tail toward PA 150 degs.
This comet was discovered by L. R. Edwards and reported on IAUC 2432. The
MPC is changing the prefix of this comet's designation from X/ to C/, and the
WGSBN has assigned it the name Edwards.
Observations:
CJ71M010*J 1971 06 19.58551 17 49 42.87 -23 11 17.6 9 T EF148474
CJ71M010 1971 06 20.80972 17 47 18.34 -22 48 37.5 10 TqEF148076
CJ71M010 1971 06 20.85972 17 47 12.47 -22 47 34.5 qEF148076
CJ71M010 1971 06 20.89028 17 47 09.16 -22 46 52.8 qEF148074
CJ71M010 1971 06 20.97361 17 46 59.64 -22 45 34.3 qEF148074
CJ71M010 1971 06 22.88472 17 43 17.05 -22 09 22.9 qEF148074
CJ71M010 1971 06 23.88194 17 41 20.72 -21 50 19.2 qEF148074
CJ71M010 1971 07 18.76806 16 58 35.00 -13 49 44.0 qEF148074
CJ71M010 1971 07 21.71806 16 54 32.49 -12 56 09.3 qEF148074
CJ71M010 1971 07 21.80139 16 54 26.87 -12 54 57.6 qEF148074
CJ71M010 1971 07 25.72708 16 49 30.67 -11 46 07.2 11 TqEF148074
CJ71M010 1971 07 25.81042 16 49 25.05 -11 44 59.0 qEF148074
Observer details:
074 Boyden Observatory, Bloemfontein. Measurers M. Meyer, G. W. Kronk. Damon
South Patrol 4.2-cm camera.
076 Johannesburg-Hartbeespoort. Observers J. A. Bruwer, M. Klerk. Measurers
M. Meyer, G. W. Kronk. 25-cm Franklin-Adams Star Camera.
474 Mount John Observatory, Lake Tekapo. Observer L. R. Edwards. 50-cm
Baker-Nunn camera.
Orbital elements:
C/1971 M1 (Edwards)
T 1971 Dec. 7.15380 TT Rudenko
q 2.8871397 (2000.0) P Q
Peri. 43.90136 -0.11478311 -0.06333785
Node 267.77719 -0.93113936 +0.35458148
e 1.0 Incl. 97.19948 +0.34612763 +0.93287743
From 12 observations 1971 June 19-July 25.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 02 25 05 38 25.1 +02 11 05 74.4549 74.7527 107.1 0.7 32.1
...
2023 03 12 05 38 14.7 +02 14 49 74.7333 74.7940 93.1 0.8 32.1
...
2023 03 20 05 38 14.2 +02 16 54 74.8844 74.8161 85.7 0.8 32.1
...
2023 03 26 05 38 16.1 +02 18 28 74.9970 74.8326 80.1 0.8 32.1
2023 03 27 05 38 16.6 +02 18 43 75.0156 74.8354 79.2 0.8 32.1
2023 03 28 05 38 17.2 +02 18 59 75.0341 74.8382 78.3 0.7 32.1
...
2023 04 03 05 38 21.7 +02 20 31 75.1440 74.8547 72.8 0.7 32.1
...
2023 04 11 05 38 30.5 +02 22 30 75.2855 74.8767 65.6 0.7 32.1
...
2023 04 26 05 38 55.0 +02 25 53 75.5284 74.9181 52.3 0.6 32.1
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-F148
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