MPEC 2023-J76 : COMET C/1951 G2 = C/1952 C1 (Groeneveld-Palomar)
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M.P.E.C. 2023-J76 Issued 2023 May 10, 02:11 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/1951 G2 = C/1952 C1 (Groeneveld-Palomar)
M. Meyer reports that he, together with G. W. Kronk, found additional
detections of probable comet X/1951 G2 (announced on IAUC 1437). These
enabled them to link this object to probable comet X/1952 C1 (announced on
IAUC 3246). The prefix of these objects are being changed from X/ to C/,
and as per the WGSBN, the comet has been assigned the name Groeneveld-Palomar.
Observations:
CJ51G020 A1950 06 12.14566 16 31 39.61 -09 14 28.3 13.2 T EJ076801
CJ51G020 A1950 07 05.90501 15 38 17.08 -07 57 53.2 13.5 T EJ076074
CJ51G020 A1950 07 16.86187 15 19 54.63 -07 38 33.0 14 T EJ076074
CJ51G020 A1951 04 07.32361 13 12 26.86 -02 27 33.8 14.4 EJ076711
CJ51G020 A1951 04 09.21597 13 09 03.16 -02 10 10.6 15.5 TqEJ076711
CJ51G020* X1951 04 09.2160 13 06 27.98 +01 22 06.5 14.5 T EJ076711
CJ51G020 A1951 04 09.26597 13 08 57.93 -02 09 42.3 15.7 TqEJ076711
CJ51G020 X1951 04 09.2660 13 06 22.68 +01 21 38.5 EJ076711
CJ52C010 A1952 02 01.42431 11 33 48.39 +01 23 19.7 17.8 TrEJ076261
CJ52C010 A1952 02 01.46595 11 33 46.31 +01 23 32.5 17.5 TrEJ076261
CJ52C010 A1952 02 01.47292 11 33 45.83 +01 23 33.5 16.3 TrEJ076261
CJ52C010 X1952 02 01.47292 11 33 46.2 +01 23 32 18.5 T EJ076675
Observer details:
074 Boyden Observatory, Bloemfontein. Measurers M. Meyer, G. W. Kronk.
3-inch Ross-Fecker camera.
261 Palomar Mountain-DSS. Measurer M. Meyer.
675 Palomar Mountain.
711 McDonald Observatory, Fort Davis. Measurers
M. Meyer, G. W. Kronk, W. H. Osborn.
801 Oak Ridge Observatory. Measurers M. Meyer, G. W. Kronk.
3-inch Ross-Fecker camera.
Orbital elements:
C/1951 G2 (Groeneveld-Palomar)
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5
T 1950 Sept. 6.99598 TT Rudenko
q 3.6058537 (2000.0) P Q
z +0.0001661 Peri. 109.58343 -0.40861348 -0.91261501
+/-0.0000094 Node 355.40292 -0.88634434 +0.39337335
e 0.9994010 Incl. 170.66911 -0.21778141 +0.11131597
From 11 observations 1950 June 12-1952 Feb. 1, mean residual 0".8.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 04 10 05 50 54.2 +14 08 20 94.5521 94.1899 68.5 0.6 35.6
...
2023 04 25 05 51 11.1 +14 09 43 94.8120 94.2266 54.2 0.5 35.6
...
2023 05 03 05 51 23.5 +14 10 22 94.9358 94.2462 46.6 0.4 35.6
...
2023 05 09 05 51 34.1 +14 10 49 95.0203 94.2608 41.0 0.4 35.6
2023 05 10 05 51 35.9 +14 10 53 95.0337 94.2633 40.1 0.4 35.6
2023 05 11 05 51 37.8 +14 10 58 95.0468 94.2657 39.1 0.4 35.6
...
2023 05 17 05 51 49.7 +14 11 21 95.1209 94.2804 33.6 0.3 35.6
...
2023 05 25 05 52 06.8 +14 11 47 95.2062 94.3000 26.4 0.3 35.6
...
2023 06 09 05 52 41.5 +14 12 21 95.3212 94.3367 14.0 0.1 35.6
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-J76
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